saes-a-112
TRANSCRIPT
Previous Issue: 17 November 2008 Next Planned Update: 17 May 2016
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Primary contact: Hejazi, Ramzi Fouad on 966-3-8760383
Copyright©Saudi Aramco 2011. All rights reserved.
Engineering Standard
SAES-A-112 17 May 2011
Meteorological and Seismic Design Data
Document Responsibility: Environmental Standards Committee
Saudi Aramco DeskTop Standards
Table of Contents
1 Scope............................................................. 2
2 Conflicts and Deviations................................. 2
3 References..................................................... 2
4 Definitions...................................................... 3 Appendix I............................................................. 9
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
Page 2 of 27
1 Scope
This standard defines the basic meteorological and seismic data to be used in the design
of all Saudi Aramco facilities. These data are presented in tabular form in Appendix I.
Commentary Note:
Saudi Aramco meteorological standards are based on the best available data; some locations have longer term data sets than others. As pertinent reference material becomes available, meteorological data for Saudi Aramco installations will be revised and expanded.
This entire standard may be attached to and made a part of purchase orders.
2 Conflicts and Deviations
2.1 Any conflicts between this standard and other applicable Saudi Aramco
Engineering Standards (SAESs), Saudi Aramco Materials System Specifications
(SAMSSs), Saudi Aramco Standard Drawings (SASDs), or industry standards,
codes, and forms shall be resolved in writing by the Company or Authorized
Representative through the Manager, Environmental Protection Department of
Saudi Aramco.
2.2 Direct all requests to deviate from this standard in writing to the Company or
Authorized Representative, who shall follow internal Company procedure
SAEP-302 and forward such requests to the Manager, Environmental Protection
Department of Saudi Aramco.
3 References
The selection of material and equipment, and the design, construction, maintenance, and
repair of equipment and facilities covered by this standard shall comply with the latest
edition of the references listed below, unless otherwise noted.
3.1 Saudi Aramco References
Saudi Aramco Engineering Procedure
SAEP-302 Instructions for Obtaining a Waiver of a
Mandatory Saudi Aramco Engineering
Requirement
Saudi Aramco Engineering Standards
SAES-A-113 Geotechnical Engineering Requirements
SAES-M-005 Design and Construction of Fixed Offshore
Platforms
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
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Saudi Aramco Engineering Reports
SAER-2359 Arabian Gulf Hindcast Study
SAER-5307 Outdoor Design Temperatures for HVAC and
Heat Exchangers
SAER-5565 Red Sea Hindcast Study
SAER-6089 Final Report on Seismic Acceleration Contour
Maps for Saudi Arabia, July 2006
Commentary Notes:
It provides maximum considered earthquake spectral response accelerations at short and long periods consistent with ICC IBC 2006 (NEHRP 2003).
Tabulated acceleration values in this standard were updated and new stations were added in 2007-2008.
3.2 Industry Codes and Standards
International Code Council (ICC)
ICC IBC 2006 International Building Code
American Society of Civil Engineers
ASCE/SEI 7 - 05 Minimum Design Loads for Buildings and Other
Structures
4 Definitions
This section defines the meteorological and seismic data presented in Tables 1 & 2
Commentary notes in Section 4 suggest how Meteorological and Seismic Design Data
are typically used.
4.1 Station Location and Elevation
Station Coordinates: The approximate latitude and longitude of the plant site
in the geodetic units of degrees and minutes.
Commentary Note:
This information can be used in Heating, Ventilation and Air Conditioning (HVAC) design to determine the position of the sun at various times of the year.
Site Elevation: Approximate elevations are listed for Saudi Aramco sites and
relative to sea level.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
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Commentary Note:
These elevations are used by process, equipment, and utility engineers for calculation of atmospheric pressure. Seasonal site specific atmospheric pressure is also available from the Environmental Protection Department.
4.2 Ambient Air & Soil Temperatures: Temperature readings obtained from the
Saudi Aramco and PME local weather stations are as follows:
Commentary Note:
This information in this section can be used in Heating, Ventilation and Air Conditioning (HVAC) design - see SAER-5307, as well as other applications requiring ambient air temperature data.
Average Annual Temperature: An average of the daily temperatures for the
year averaged over a number of years.
Average Daily Maximum Temperature: An average of the daily temperatures
for the hottest month averaged over a number of years.
Commentary Note:
This value is used in the rating of transformers and electric motors.
Monthly Normal Maximum Temperature: The average of the maximum daily
temperature recorded during the hottest month averaged over a number of years.
Commentary Note:
This value is used in the rating of transformers and electric motors.
Average Daily Soil Temperature: The average daily soil temperature for the
hottest month, measured one meter below grade, averaged over a number of
years.
Commentary Note:
This value is used for underground cable applications and buried pipelines.
Monthly Normal Maximum Soil Temperature: The average of the maximum
daily soil temperature, measured one meter below grade, during the hottest
month averaged over a number of years.
Commentary Note:
This value is used for underground cable applications and buried pipelines.
Lowest One Day Mean Temperature: Determined by finding the lowest value
of the daily mean temperatures over the entire period of records.
Document Responsibility: Environmental Standards Committee SAES-A-112
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Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
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Commentary Note:
An ambient temperature that may be required for the minimum design metal temperature for equipment that is significantly pressurized at ambient temperatures.
Highest One Day Mean Temperature: Determined by finding the highest
value of the daily mean temperatures over the entire period of records.
Commentary Note:
An ambient temperature that may be required to determine the maximum metal temperatures used in the design of structures, piping systems and certain types of equipment.
Lowest Recorded Temperature: The lowest ambient air temperature that has
been recorded at a particular site.
Highest Recorded Temperature: The highest ambient air temperature that has
been recorded at a particular site.
Summer Design Dry Bulb Temperature: A dry bulb temperature that has
been equaled or exceeded by 1%, 2.5% or 5% (30 hrs, 73 hrs, or 146 hrs) of the
total hours during the months of June through September.
Wet Bulb Temperature: The lowest temperature that can be obtained by
evaporating water into the air.
Mean Coincident Wet Bulb Temperature: The mean of all wet bulb
temperatures occurring at the specific Summer Design Dry Bulb Temperature.
Summer Design Wet Bulb Temperature: A wet bulb temperature that has
been equaled or exceeded by either 1% or 2.5% (30 hrs or 73 hrs) of the total
hours during the months of June through September.
Mean Coincident Dry Bulb Temperature: The mean of all dry bulb
temperatures occurring at the specific summer design wet bulb temperature.
Mean Daily Range: The difference between the average daily maximum and
average daily minimum temperatures during the month of August.
Winter Design Dry Bulb Temperature: A temperature that has been equaled
or exceeded by 99% of the total hours during the months of December, January
and February.
4.3 Wind
Wind data are compiled from local weather stations where it is measured
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
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10 meters above grade in open terrain and reported as follows:
Basic Wind Speed: Basic Wind Speed data are provided in terms of a 3-second
gust expressed in SI for 50-year mean recurrence intervals.
Commentary Note:
This data is used for the design of structures, buildings, pressure vessels, piping, storage tanks, air-cooled heat exchangers, cooling towers, stacks, and similar equipment.
Prevailing Wind Direction: The compass direction (N, NNE, NE, ENE, E,
etc.) from which the wind blows the greatest percent of the time.
Commentary Note:
Since up to 16 points of direction (N, NNE, NE, ENE, E, etc.) may be used to describe the direction from which the wind is blowing, the directions given in Table 1 could represent less than 10% of the total time the wind is blowing. Where wind direction considerations are critical, a wind rose diagram may be available from the Environmental Protection Department.
Exposure Category: An exposure category reflects the characteristic of ground
surface irregularities at a particular site.
Commentary Note:
This category is used to account for large variations in ground surface roughness that arises from natural topography and vegetation as well as from constructed features. This factor is used in calculating wind pressures using either the ICC IBC 2006 or ASCE/SEI 7 - 05.
4.4 Earthquake Data
Commentary Note:
For more data and details refer to the Supervisor of the Civil Engineering Unit of CSD.
Short Period Acceleration (SS): The mapped maximum considered earthquake
spectral response acceleration at a short period.
One-Second Period Acceleration (S1): The mapped maximum considered
earthquake spectral response acceleration at a period of 1-sec.
Commentary Note:
SS and S1 values have been determined based on SAER-6089. They are to be used as per procedures in ASCE/SEI 7 - 05 and ICC IBC 2006 to calculate the design spectral response acceleration parameters.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
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Peak Ground Acceleration (PGA): The peak ground acceleration is the
maximum acceleration experienced by the structure that is attached to the earth
during the course of the earthquake motion.
Commentary Note:
The PGA is not used for structural analysis/design purpose. It is used to address soil liquefaction. Note that for Seismic Design Category D and higher, the potential for soil liquefaction requires consideration of both site peak ground accelerations and earthquake magnitude. PGA may be determined based on a site-specific study taking into account soil amplification effect or, in the absence
of such a study, PGA shall be assumed equal to SDS/2.5. SDS is the design, 5% damped, spectral response acceleration parameter at short period.
Site Class: A classification assigned to a site based on the types of soils present
and their engineering properties as per IBC or ASCE 7 Site Classification Tables
1615.1.1 or 9.4.1.2 respectively.
4.5 Precipitation
Commentary Note:
The amount of precipitation (rainfall) is a factor used in storage tank design, drainage design, waste-water discharge quality control, and similar items. It should be realized that the desert climate and length of record make recorded values highly variable (for example, Dhahran has 60 years of data while Tanajib has 12 years).
Rainfall, Average Annual: This is the annual average rainfall based on as
many years of data as available.
Rainfall Maximum in 24 Hours: This is the maximum precipitation recorded
in 24 hours.
Rainfall Intensity Coefficients: These coefficients are provided for return
periods of 5, 10, 25, 50 and 100 years. The coefficients are used in the Steel
Formula [I = K/ (t+b)] to calculate the average maximum precipitation rates for
storm durations up to two hour.
Where: I = Rainfall Intensity in mm/hr (in/hr),
t = time of concentration in minutes, and
K & b are non-dimensional coefficients
Isokeraunic Levels: A rough measure of lightning frequency.
Commentary Note:
These values are used in the design of grounding and lightning protection systems.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
Page 8 of 27
4.6 Ambient Air Quality
Commentary Note:
Air-borne dust concentrations and contaminant levels are used in mechanical equipment design, when sizing air filters and as a measure of potential dust ingress in bearing housings, lube oil systems, etc.
Dust Concentration: The mass of total suspended airborne particulate matter
per unit volume of air. Usual airborne dust concentration is 1 mg/m³. During
sandstorms, dust concentrations may reach 500 mg/m³. Particle sizes are as
follows:
95% of all particles are less than 20 micrometers
50% of all particles are less than 1.5 micrometers
Elements present in dust include compounds of calcium, silicon, magnesium,
aluminum, potassium, chlorides and sodium. When wetted (high humidity
conditions) these compounds function as electrolytes and can result in severe
corrosion.
Other pollutants present in the atmosphere under the most extreme conditions are:
H2S 20 ppm (vol/vol)
Hydrocarbon 150 ppm (vol/vol)
SO2 10 ppm (vol/vol)
CO 100 ppm (vol/vol)
NOx 5 ppm (vol/vol)
O3 1 ppm (vol/vol)
4.7 Meteorological and Oceanographic Data for Offshore Structures
Offshore Structures: For the design of offshore structures the wind, current
and wave design data should be taken from SAER-2359 “Arabian Gulf Hindcast
Study”, and SAER-5565 “Red Sea Hindcast Study.”
Revision Summary 17 May 2011 Major revision. The number of listed sites was increased to 51.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
Page 9 of 27
Appendix I
Table 1 – Design Data - SI Units
Data Categories Abha Abqaiq Abu
Sa'fah Al-Baha Al-Jauf
Elevation Above Sea Level, m 2200 79 16 1651 559
Station Coordinates: Latitude North 18°12' 25°56' 26°54' 20°17' 29°56'
Longitude East 42°29' 49°42' 50°30' 41°38' 40°12'
Ambient Air & Soil Temperatures, (°C):
Average Annual Temperature 19 27 26 23 22
Average Daily Maximum Temp. (hottest month) 23 38 33 29 32
Monthly Normal Max. Temp. (hottest month) 30 45 35 34 39
Average Daily Soil Temp. (1 m below grade) - 32 Note 2 - -
Mo. Normal Max. Soil Temp. (1 m below grade) - 33 Note 2 - -
Lowest One-Day Mean Temperature 7 6 10 4 1
Highest One-Day Mean Temperature 28 42 39 32 39
Lowest Recorded Temperature 0 -3 10 0 -5
Highest Recorded Temperature 40 52 44 42 49
Summer Design Dry Bulb Temp. @ 1% 31 47 37 36 42
Mean Coincident Wet Bulb Temp. @ 1% 13 22 - 16 19
Summer Design Dry Bulb Temp. @ 2.5% 30 45 36 35 41
Mean Coincident Wet Bulb Temp. @ 2.5% 13 22 - 16 18
Summer Design Wet Bulb Temp. @ 1% 20 28 - 21 20
Mean Coincident Dry Bulb Temp. @ 1% 25 36 - 31 40
Summer Design Wet Bulb Temp. @ 2.5% 19 27 - 20 19
Mean Coincident Dry Bulb Temp. @ 2.5% 24 35 - 29 38
Summer Design Dry Bulb Temp. @ 5% 30 45 35 34 40
Mean Daily Range 12 15 3 10 13
Winter Design Dry Bulb Temp. @ 99% 5 6 13 6 0
Wind:
Basic Wind Speed, 3-sec gust, km/hr 50 yr 145 155 Note 2 145 165
Exposure Category (Note 1) C C Note 2 - C
Prevailing Direction SSW NW NW E W
Earthquake Data:
Short Period Acceleration (SS) in %g 16.9 13.8 14.3 16 12.0
1-Sec Period Acceleration (S1) in %g 4.8 4.0 5.2 4.6 3.4
Peak Ground Acceleration in %g (Note 5) 4.00 3.00 3.00 3.00 2.00
Site Class (Note 4) D D D D D
Precipitation, mm:
Rainfall, Average Annual 330 82 - 154 59
Rainfall Maximum in 24 hours 131 80 - 118 34
Rainfall Intensity - Note 3 Note 3 Note 3 Note 3
Isokeraunic Levels (days lightning/year) 101 20 25 63 12
See notes at the end of the document.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
Page 10 of 27
Table 1 – Design Data - SI Units (Continued)
Data Categories Ar'ar' Berri Bisha Dhahran Duba
Elevation Above Sea Level, m 539 30 1162 89 19
Station Coordinates: Latitude North 30°54' 26°57' 19°59' 26°19' 27°19'
Longitude East 41°08' 49°35' 42°37' 50°08' 35°44'
Ambient Air & Soil Temperatures, (°C):
Average Annual Temperature 22 26 25 26 26
Average Daily Maximum Temp. (hottest month) 33 36 32 36 31
Monthly Normal Max. Temp. (hottest month) 40 43 39 42 35
Average Daily Soil Temp. (1 m below grade) - 32 - 32 -
Mo. Normal Max. Soil Temp. (1 m below grade) - 32 - 33 -
Lowest One-Day Mean Temperature -1 8 7 6 16
Highest One-Day Mean Temperature 40 40 37 41 38
Lowest Recorded Temperature -9 0 -1 -1 5
Highest Recorded Temperature 48 53 43 51 44
Summer Design Dry Bulb Temp. @ 1% 43 44 40 44 -
Mean Coincident Wet Bulb Temp. @ 1% 20 21 18 23 -
Summer Design Dry Bulb Temp. @ 2.5% 42 43 40 43 -
Mean Coincident Wet Bulb Temp. @ 2.5% 20 21 17 23 -
Summer Design Wet Bulb Temp. @ 1% 23 29 21 30 -
Mean Coincident Dry Bulb Temp. @ 1% 39 34 33 35 -
Summer Design Wet Bulb Temp. @ 2.5% 21 28 20 30 -
Mean Coincident Dry Bulb Temp. @ 2.5% 38 34 33 35 -
Summer Design Dry Bulb Temp. @ 5% 41 42 39 42 -
Mean Daily Range 13 12 13 12 6
Winter Design Dry Bulb Temp. @ 99% 0 7 6 7 -
Wind:
Basic Wind Speed, 3-sec gust, km/hr 50 yr 150 145 150 145 145
Exposure Category (Note 1) C C C C C
Prevailing Direction W N ENE NW WNW
Earthquake Data:
Short Period Acceleration (SS) in %g 3.4 8.5 7 8.2 27.1
1-Sec Period Acceleration (S1) in %g 1.0 3.1 1.8 2.8 7.9
Peak Ground Acceleration in %g (Note 5) 0.81 2.00 2.8(*)
1.00 6.00
Site Class (Note 4) D D D D D
Precipitation, mm:
Rainfall, Average Annual 73 99 91 83 28
Rainfall Maximum in 24 hours 38 96 72 63 116
Rainfall Intensity Note 3 Note 3 Note 3 Note 3 Note 3
Isokeraunic Levels (days lightning/year) 15 5 31 21 5
See notes at the end of the document.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
Page 11 of 27
Table 1 – Design Data - SI Units (Continued)
Data Categories
East/West Pump Stations
No. 3 No. 6 No. 10 Guriat Hafr
Al-Batin Hail Haradh
Elevation Above Sea Level, m 530 771 866 504 414 1001 300
Station Coordinates: Latitude North 25°10' 24°42' 24°06' 31°25' 27°53' 27°26' 24°04'
Longitude East 47°30' 44°58' 41°02' 37°17' 45°33' 41°41' 49°01'
Ambient Air & Soil Temperatures, (°C):
Average Annual Temperature 25 25 22 20 25 22 27
Average Daily Maximum Temp. (hottest month) 36 34 34 29 36 33 37
Monthly Normal Max. Temp. (hottest month) 43 42 42 38 43 39 45
Average Daily Soil Temp. (1 m below grade) 33 32 33 - - - 34
Mo. Normal Max. Soil Temp. (1 m below grade) 34 33 34 - - - 36
Lowest One-Day Mean Temperature 5 7 - 0 2 -1 2
Highest One-Day Mean Temperature 38 39 - 38 41 38 48
Lowest Recorded Temperature -2 -5 -2 -9 -5 -9 -6
Highest Recorded Temperature 47 46 44 47 55 48 50
Summer Design Dry Bulb Temp. @ 1% 44 43 - 41 45 42 -
Mean Coincident Wet Bulb Temp. @ 1% - - - 18 20 19 -
Summer Design Dry Bulb Temp. @ 2.5% 43 41 - 39 44 41 -
Mean Coincident Wet Bulb Temp. @ 2.5% - - - 18 19 18 -
Summer Design Wet Bulb Temp. @ 1% - - - 22 22 20 -
Mean Coincident Dry Bulb Temp. @ 1% - - - 34 39 39 -
Summer Design Wet Bulb Temp. @ 2.5% - - - 21 20 19 -
Mean Coincident Dry Bulb Temp. @ 2.5% - - - 32 41 38 -
Summer Design Dry Bulb Temp. @ 5% - - - 38 43 40 -
Mean Daily Range 14 15 19 17 13 15 21
Winter Design Dry Bulb Temp. @ 99% - - - -1 2 -1 -
Wind:
Basic Wind Speed, 3-sec gust, km/hr 50 yr 145 150 165 160 175 180 145
Exposure Category (Note 1) C C C C C C C
Prevailing Direction N SE W WNW N S NNE
Earthquake Data:
Short Period Acceleration (SS) in % g 0.9 11.7 18.1 14.3 2.4 13.4 15.9
1-Sec Period Acceleration (S1) in %g 0.3 3.4 5.2 4.0 0.6 4.3 4.5
Peak Ground Acceleration in % g (Note 5) 0.21 2.00 4.00 5.7(*)
1.0(*) 3.00 3.00
Site Class (Note 4) D D D D D D D
Precipitation, mm:
Rainfall, Average Annual - - - 47 127 130 40
Rainfall Maximum in 24 hours - - - 37 65 80 16
Rainfall Intensity Note 3 Note 3 Note 3 Note 3 Note 3 Note 3 Note 3
Isokeraunic Levels (days lightning/year) 18 16 8 11 22 31 16
See notes at the end of the document.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
Page 12 of 27
Table 1 – Design Data - SI Units (Continued)
Data Categories Hawtah Hofuf Jeddah Jizan Ju'aymah Jubail Khafji
Elevation Above Sea Level, m 635 160 17 7 5 6 1
Station Coordinates: Latitude North 22°58' 25°30' 21°43' 16°52' 26°47' 27°2' 28°24'
Longitude East 46°54' 49°34' 39°11' 42°35' 49°56' 49°32' 48°32'
Ambient Air & Soil Temperatures, (°C):
Average Annual Temperature 26 27 28 30 25 26 27
Average Daily Max. Temp. (hottest month) 36 37 33 34 34 36 38
Monthly Normal Max. Temp. (hottest month) 43 45 39 37 41 42 42
Average Daily Soil Temp. (1 m below grade) 34 30 - - 31 33 36
Mo. Normal Max. Soil Temp. (1 m below grade) 35 31 - - 31 33 36
Lowest One-Day Mean Temperature 4 5 16 21 8 7 7
Highest One-Day Mean Temperature 41 42 37 36 40 40 41
Lowest Recorded Temperature -4 -2 9 12 2 3 1
Highest Recorded Temperature 49 55 48 48 48 50 47
Summer Design Dry Bulb Temp. @ 1% 44 47 41 38 42 45 43
Mean Coincident Wet Bulb Temp. @ 1% 19 24 24 28 28 23 -
Summer Design Dry Bulb Temp. @ 2.5% 43 46 39 38 39 44 42
Mean Coincident Wet Bulb Temp. @ 2.5% 18 24 24 28 24 23 -
Summer Design Wet Bulb Temp. @ 1% 21 29 30 30 31 32 -
Mean Coincident Dry Bulb Temp. @ 1% 39 39 35 36 36 35 -
Summer Design Wet Bulb Temp. @ 2.5% 20 28 29 30 31 31 -
Mean Coincident Dry Bulb Temp. @ 2.5% 40 38 35 36 35 35 -
Summer Design Dry Bulb Temp. @ 5% 42 45 38 37 40 43 41
Mean Daily Range 14 16 11 7 9 12 9
Winter Design Dry Bulb Temp. @ 99% 4 5 15 21 7 7 7
Wind:
Basic Wind Speed, 3-sec gust, (km/hr) 50 yr 145 155 135 165 145 145 145
Exposure Category (Note 1) C C C C C C C
Prevailing Direction NNE NNW NW SW NNW NNW NW
Earthquake Data:
Short Period Acceleration (SS) in %g 0.5 16.0 30.1 43.5 8.9 8.5 7.6
1-Sec Period Acceleration (S1) in %g 0.1 4.6 11.0 12.4 3.2 3.1 5
Peak Ground Acceleration in %g (Note 5) 3.00 3.00 7.00 10.00 2.00 3.4 3(*)
Site Class (Note 4) D D E D D D D
Precipitation, mm:
Rainfall, Average Annual 112 92 57 134 89 120 104
Rainfall Maximum in 24 hours 50 56 73 90 66 115 60
Rainfall Intensity Note 3 Note 3 Note 3 Note 3 Note 3 Note 3 Note 3
Isokeraunic Levels (days lightning/year) 15 18 9 36 24 25 20
See notes at the end of the document.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
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Table 1 – Design Data - SI Units (Continued)
Data Categories Khamis Mushayt
Khurais Makkah Manifa Marjan Medina
Elevation Above Sea Level, m 2051 430 261 10 21 632
Station Coordinates: Latitude North 18°18' 25°05' 21°26' 27° 36' 28°27' 24°31'
Longitude East 42°48' 48°08' 39°46' 49° 0' 49°42' 39°35'
Ambient Air & Soil Temperatures, (°C):
Average Annual Temperature 20 27 31 26 26 28
Average Daily Max. Temp. (hottest month) 24 38 36 37 34 37
Monthly Normal Max. Temp. (hottest month) 32 42 43 42 39 43
Average Daily Soil Temp. (1 m below grade) - 34 - - Note 2 34
Mo. Normal Max. Soil Temp. (1 m below grade) - 35 - - Note 2 35
Lowest One-Day Mean Temperature 8 - 16 1 10 8
Highest One-Day Mean Temperature 28 - 41 40 39 42
Lowest Recorded Temperature -1 -2 8 0 8 0
Highest Recorded Temperature 40 52 50 50 45 48
Summer Design Dry Bulb Temp. @ 1% 32 50 45 44 - 45
Mean Coincident Wet Bulb Temp. @ 1% 15 22 25 - - 19
Summer Design Dry Bulb Temp. @ 2.5% 31 49 44 43 - 44
Mean Coincident Wet Bulb Temp. @ 2.5% 15 22 24 - - 19
Summer Design Wet Bulb Temp. @ 1% 20 27 29 - - 22
Mean Coincident Dry Bulb Temp. @ 1% 25 40 39 - - 38
Summer Design Wet Bulb Temp. @ 2.5% 19 27 28 - - 21
Mean Coincident Dry Bulb Temp. @ 2.5% 24 40 38 - - 39
Summer Design Dry Bulb Temp. @ 5% 30 47 43 42 - 43
Mean Daily Range 12 19 12 12 3 13
Winter Design Dry Bulb Temp. @ 99% 5 8 16 5 - 9
Wind:
Basic Wind Speed, 3-sec gust, (km/hr) 50 yr 145 163 135 145 145 120
Exposure Category (Note 1) C C C C Note 2 C
Prevailing Direction SSW N N NW NW W
Earthquake Data:
Short Period Acceleration (SS) in %g 19.3 2.8 25 9.1 22.3 25.4
1-Sec Period Acceleration (S1) in %g 5.5 0.8 9 3.2 8.1 7.2
Peak Ground Acceleration in %g (Note 5) 4.00 0.67 10(*)
2.50 5.00 6.00
Site Class (Note 4) D D D D D D
Precipitation, mm:
Rainfall, Average Annual 220 116 110 104 - 65
Rainfall Maximum in 24 hours 100 70 71 60 - 53
Rainfall Intensity - Note 3 Note 3 Note 3 Note 3 Note 3
Isokeraunic Levels (days lightning/year) 77 17 20 20 20 20
See notes at the end of the document.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
Page 14 of 27
Table 1 – Design Data - SI Units (Continued)
Data Categories Najran Qaisumah Qasim Qatif Rabigh Rafha
Elevation Above Sea Level, m 1206 356 645 4 5 444
Station Coordinates: Latitude North 17°36' 28°20' 26°18' 26°30' 22°43' 29°37'
Longitude East 44°25' 46°07' 43°58' 50°00' 39°01' 43°30'
Ambient Air & Soil Temperatures, (°C):
Average Annual Temperature 26 25 25 25 28 23
Average Daily Max. Temp. (hottest month) 33 37 35 33 33 34
Monthly Normal Max. Temp. (hottest month) 39 44 42 39 38 42
Average Daily Soil Temp. (1 m below grade) - - - 32 - -
Mo. Normal Max. Soil Temp. (1 m below grade) - - - 33 - -
Lowest One-Day Mean Temperature 6 2 2 8 17 1
Highest One-Day Mean Temperature 37 42 41 39 39 41
Lowest Recorded Temperature -1 -3 -7 2 11 -6
Highest Recorded Temperature 47 54 49 51 48 49
Summer Design Dry Bulb Temp. @ 1% 40 46 45 40 40 45
Mean Coincident Wet Bulb Temp. @ 1% 17 20 19 28 23 21
Summer Design Dry Bulb Temp. @ 2.5% 39 45 44 39 39 44
Mean Coincident Wet Bulb Temp. @ 2.5% 17 20 19 28 23 21
Summer Design Wet Bulb Temp. @ 1% 21 22 22 34 29 24
Mean Coincident Dry Bulb Temp. @ 1% 34 40 41 34 35 42
Summer Design Wet Bulb Temp. @ 2.5% 20 21 20 33 28 23
Mean Coincident Dry Bulb Temp. @ 2.5% 34 42 41 34 34 41
Summer Design Dry Bulb Temp. @ 5% 39 44 43 36 38 42
Mean Daily Range 12 14 15 15 8 15
Winter Design Dry Bulb Temp. @ 99% 7 2 2 8 15 0
Wind:
Basic Wind Speed, 3-sec gust, (km/hr) 50 yr 140 180 150 150 150 155
Exposure Category (Note 1) C C C C C C
Prevailing Direction E N N NNW WNW W
Earthquake Data:
Short Period Acceleration (SS) in %g 25.0 1.1 11.2 8.3 18.8 0.6
1-Sec Period Acceleration (S1) in %g 7.8 0.3 3.2 2.9 6.7 0.2
Peak Ground Acceleration in %g (Note 5) 5.00 0.27 2.00 1.00 4.00 0.2(*)
Site Class (Note 4) D D D D D D
Precipitation, mm:
Rainfall, Average Annual 64 124 152 87 60 93
Rainfall Maximum in 24 hours 157 64 86 65 63 121
Rainfall Intensity Note 3 Note 3 Note 3 Note 3 Note 3 Note 3
Isokeraunic Levels (days lightning/year) 13 20 21 24 8 13
See notes at the end of the document.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
Page 15 of 27
Table 1 – Design Data - SI Units (Continued)
Data Categories Ras
Tanura Riyadh Safaniya Sharorah Shaybah Shedgum
Elevation Above Sea Level, m 2 608 2 725 70 294
Station Coordinates: Latitude North 26°42' 24°42' 28°00' 17°28' 22°21' 25°36'
Longitude East 50°05' 46°44' 48°48' 47°6' 54°03' 49°24'
Ambient Air & Soil Temperatures, (°C):
Average Annual Temperature 26 27 25 28 30 27
Average Daily Maximum Temp. (hottest month) 35 37 34 36 40 37
Monthly Normal Max. Temp. (hottest month) 39 43 44 42 45 47
Average Daily Soil Temp. (1 m below grade) - 33 29 - 35 33
Mo. Normal Max. Soil Temp. (1 m below grade) - 34 30 - 36 34
Lowest One-Day Mean Temperature 8 5 7 5 10 4
Highest One-Day Mean Temperature 38 42 39 39 43 41
Lowest Recorded Temperature 0 -4 2 0 2 -1
Highest Recorded Temperature 48 49 47 49 53 49
Summer Design Dry Bulb Temp. @ 1% 41 45 41 43 47 45
Mean Coincident Wet Bulb Temp. @ 1% 27 19 26 21 20 21
Summer Design Dry Bulb Temp. @ 2.5% 40 44 39 42 46 45
Mean Coincident Wet Bulb Temp. @ 2.5% 23 19 26 21 21 21
Summer Design Wet Bulb Temp. @ 1% 30 21 31 28 25 26
Mean Coincident Dry Bulb Temp. @ 1% 35 40 34 40 37 32
Summer Design Wet Bulb Temp. @ 2.5% 30 20 30 26 23 24
Mean Coincident Dry Bulb Temp. @ 2.5% 34 41 34 38 38 33
Summer Design Dry Bulb Temp. @ 5% 39 43 37 42 46 44
Mean Daily Range 8 14 4 13 12 15
Winter Design Dry Bulb Temp. @ 99% 8 5 8 8 10 6
Wind:
Basic Wind Speed, 3-sec gust, (km/hr) 50 yr 145 145 145 135 145 155
Exposure Category (Note 1) C C C C C C
Prevailing Direction NNW N NW NE NNE NNW
Earthquake Data:
Short Period Acceleration (SS) in %g 8.8 0.7 6.8 5.0 8.1 15.9
1-Sec Period Acceleration (S1) in %g 3.2 0.2 2.5 1.0 2.3 4.5
Peak Ground Acceleration in %g (Note 5) 2.00 0.17 1.00 2.0(*)
1.00 3.00
Site Class (Note 4) D D D D D D
Precipitation, mm:
Rainfall, Average Annual 109 116 98 71 24 81
Rainfall Maximum in 24 hours 98 70 51 75 12 80
Rainfall Intensity Note 3 Note 3 Note 3 Note 3 Note 3 Note 3
Isokeraunic Levels (days lightning/year) 24 16 20 11 10 20
See notes at the end of the document.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
Page 16 of 27
Table 1 – Design Data - SI Units (Continued)
Data Categories Tanajib Tabuk Taif Turaif Udhailiyah
Elevation Above Sea Level, m 10 769 1453 852 270
Station Coordinates: Latitude North 27°52' 28°22' 21°29' 31°41' 25°09'
Longitude East 48°46' 36°35' 40°33' 38°40' 49°20'
Ambient Air & Soil Temperatures, (°C):
Average Annual Temperature 25 22 23 19 27
Average Daily Max. Temp. (hottest month) 36 31 29 29 37
Monthly Normal Max. Temp. (hottest month) 42 38 35 36 42
Average Daily Soil Temp. (1 m below grade) 29 22 - - 32
Mo. Normal Max. Soil Temp. (1 m below grade) 30 23 - - 33
Lowest One-Day Mean Temperature 1 3 6 -1 6
Highest One-Day Mean Temperature 40 37 33 37 41
Lowest Recorded Temperature 0 -10 0 -8 -1
Highest Recorded Temperature 49 45 44 45 49
Summer Design Dry Bulb Temp. @ 1% 44 41 37 40 46
Mean Coincident Wet Bulb Temp. @ 1% 26 19 17 18 22
Summer Design Dry Bulb Temp. @ 2.5% 43 40 36 39 45
Mean Coincident Wet Bulb Temp. @ 2.5% 26 18 17 17 22
Summer Design Wet Bulb Temp. @ 1% 31 21 22 20 27
Mean Coincident Dry Bulb Temp. @ 1% 34 37 32 34 38
Summer Design Wet Bulb Temp. @ 2.5% 30 20 21 19 25
Mean Coincident Dry Bulb Temp. @ 2.5% 34 36 31 34 36
Summer Design Dry Bulb Temp. @ 5% 42 39 35 37 45
Mean Daily Range 12 14 11 15 15
Winter Design Dry Bulb Temp. @ 99% 5 1 5 -2 5
Wind:
Basic Wind Speed, 3-sec gust, km/hr 50yr 145 150 150 155 155
Exposure Category (Note 1) C C C C C
Prevailing Direction N NNW W W NNW
Earthquake Data:
Short Period Acceleration (SS) in %g 8.1 27.1 16.2 18.6 16
1-Sec Period Acceleration (S1) in %g 3.0 11.0 4.4 5.3 4.6
Peak Ground Acceleration in %g (Note 5) 6.00 1.00 6.5(*)
4.00 3.00
Site Class (Note 4) D D D D D
Precipitation, mm:
Rainfall, Average Annual 104 48 175 83 68
Rainfall Maximum in 24 hours 59 48 169 86 24
Rainfall Intensity Note 3 Note 3 Note 3 Note 3 Note 3
Isokeraunic Levels (days lightning/year) 20 14 89 12 18
See notes at the end of the document.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
Page 17 of 27
Table 1 – Design Data - SI Units (Continued)
Data Categories Uthmaniyah Wadi Al- Dawaser
Wajeh Yanbu
Elevation Above Sea Level, m 231 622 24 10
Station Coordinates: Latitude North 25°13' 20°30' 26°12' 24°07'
Longitude East 49°18' 45°12' 36°29' 38°03'
Ambient Air & Soil Temperatures, (°C):
Average Annual Temperature 25 28 25 28
Average Daily Maximum Temp. (hottest month) 36 37 30 33
Monthly Normal Max. Temp. (hottest month) 47 43 33 39
Average Daily Soil Temp. (1 m below grade) 32 - - 31
Mo. Normal Max. Soil Temp. (1 m below grade) 33 - - 32
Lowest One-Day Mean Temperature 6 7 11 12
Highest One-Day Mean Temperature 41 40 35 41
Lowest Recorded Temperature -1 0 1 5
Highest Recorded Temperature 49 49 47 50
Summer Design Dry Bulb Temp. @ 1% 46 45 35 44
Mean Coincident Wet Bulb Temp. @ 1% 22 20 25 25
Summer Design Dry Bulb Temp. @ 2.5% 45 44 34 42
Mean Coincident Wet Bulb Temp. @ 2.5% 22 20 27 25
Summer Design Wet Bulb Temp. @ 1% 25 23 30 30
Mean Coincident Dry Bulb Temp. @ 1% 37 41 33 36
Summer Design Wet Bulb Temp. @ 2.5% 24 22 29 30
Mean Coincident Dry Bulb Temp. @ 2.5% 37 41 32 35
Summer Design Dry Bulb Temp. @ 5% 43 43 33 41
Mean Daily Range 16 12 7 12
Winter Design Dry Bulb Temp. @ 99% 3 7 12 11
Wind:
Basic Wind Speed, 3-sec gust, km/hr 50yr 155 145 145 145
Exposure Category (Note 1) C C C C
Prevailing Direction NNW ESE WNW W
Earthquake Data:
Short Period Acceleration (SS) in %g 16.0 5.0 27.1 20.4
1-Sec Period Acceleration (S1) in %g 4.6 1.0 7.0 5.8
Peak Ground Acceleration in %g (Note 5) 3.00 2.0(*)
10.8(*)
4.00
Site Class (Note 4) D D D D
Precipitation, mm:
Rainfall, Average Annual 68 27 26 36
Rainfall Maximum in 24 hours 24 28 116 49
Rainfall Intensity Note 3 Note 3 Note 3 Note 3
Isokeraunic Levels (days lightning/year) 18 10 5 7
See notes at the end of the document.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
Page 18 of 27
Table 2 – Design Data - Customary Units
Data Categories Abha Abqaiq Abu Sa'fah Al-Baha Al-Jauf
Elevation Above Sea Level, ft 7216 259 52 5415 1834
Station Coordinates: Latitude North 18°12' 25°56' 26°54' 20°17' 29°56'
Longitude East 42°29' 49°42' 50°30' 41°38' 40°12'
Ambient Air & Soil Temperatures, (°F):
Average Annual Temperature 66 81 79 73 72
Average Daily Max. Temp. (hottest month) 73 100 91 84 90
Monthly Normal Max. Temp. (hottest month) 86 113 95 93 102
Average Daily Soil Temp. (3 ft below grade) - 90 - - -
Mo. Normal Max. Soil Temp. (3 ft below grade) - 91 - - -
Lowest One-Day Mean Temperature 45 43 50 39 34
Highest One-Day Mean Temperature 82 108 102 90 102
Lowest Recorded Temperature 32 27 50 32 23
Highest Recorded Temperature 104 126 111 108 120
Summer Design Dry Bulb Temp. @ 1% 88 117 99 97 108
Mean Coincident Wet Bulb Temp. @ 1% 55 72 - 61 66
Summer Design Dry Bulb Temp. @ 2.5% 86 113 97 95 106
Mean Coincident Wet Bulb Temp. @ 2.5% 55 72 - 61 64
Summer Design Wet Bulb Temp. @ 1% 68 82 - 70 68
Mean Coincident Dry Bulb Temp. @ 1% 77 97 - 88 104
Summer Design Wet Bulb Temp. @ 2.5% 66 81 - 68 66
Mean Coincident Dry Bulb Temp. @ 2.5% 75 95 - 84 100
Summer Design Dry Bulb Temp. @ 5% 86 113 95 93 104
Mean Daily Range 22 27 5 18 23
Winter Design Dry Bulb Temp. @ 99% 41 43 55 43 32
Wind:
Basic Wind Speed, 3-sec gust, mph 50 yr 90 96 - 90 103
Exposure Category (Note 1) C C Note 2 - C
Prevailing Direction SSW NW NW E W
Earthquake Data:
Short Period Acceleration (SS) in %g 16.9 13.8 14.3 16.0 12.0
1-Sec Period Acceleration (S1) in %g 4.8 4.0 5.2 4.6 3.4
Peak Ground Acceleration in %g (Note 5) 4.0 3.0 3.0 3.0 2.0
Site Class (Note 4) D D D D D
Precipitation, inches:
Rainfall, Average Annual 13.0 3.2 - 6.1 2.3
Rainfall Maximum in 24 hours 5.2 3.1 - 4.6 1.3
Rainfall Intensity - Note 3 Note 3 Note 3 Note 3
Isokeraunic Levels (days lightning/year) 101 20 25 63 12
See notes at the end of the document.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
Page 19 of 27
Table 2 – Design Data - Customary Units (Continued)
Data Categories Ar'ar' Berri Bisha Dhahran Duba
Elevation Above Sea Level, ft 1768 98 3811 292 62
Station Coordinates: Latitude North 30°54' 26°57' 19°59' 26°19' 27°19'
Longitude East 41°08' 49°35' 42°37' 50°08' 35°44'
Ambient Air & Soil Temperatures, (°F):
Average Annual Temperature 72 79 77 79 79
Average Daily Max. Temp. (hottest month) 91 97 90 97 88
Monthly Normal Max. Temp. (hottest month) 104 109 102 108 95
Average Daily Soil Temp. (3 ft below grade) - 90 - 90 -
Mo. Normal Max. Soil Temp. (3 ft below grade) - 90 - 91 -
Lowest One-Day Mean Temperature 30 46 45 43 61
Highest One-Day Mean Temperature 104 104 99 106 100
Lowest Recorded Temperature 16 32 30 30 41
Highest Recorded Temperature 118 127 109 124 111
Summer Design Dry Bulb Temp. @ 1% 109 111 104 111 -
Mean Coincident Wet Bulb Temp. @ 1% 68 70 64 73 -
Summer Design Dry Bulb Temp. @ 2.5% 108 109 104 109 -
Mean Coincident Wet Bulb Temp. @ 2.5% 68 70 63 73 -
Summer Design Wet Bulb Temp. @ 1% 73 84 70 86 -
Mean Coincident Dry Bulb Temp. @ 1% 102 93 91 95 -
Summer Design Wet Bulb Temp. @ 2.5% 70 82 68 86 -
Mean Coincident Dry Bulb Temp. @ 2.5% 100 93 91 95 -
Summer Design Dry Bulb Temp. @ 5% 106 108 102 108 -
Mean Daily Range 23 22 23 22 11
Winter Design Dry Bulb Temp. @ 99% 32 45 43 45 -
Wind:
Basic Wind Speed, 3-sec gust, mph 50 yr 93 90 93 90 90
Exposure Category (Note 1) C C C C C
Prevailing Direction W N ENE NW WNW
Earthquake Data:
Short Period Acceleration (SS) in %g 3.4 8.5 7.0 8.2 27.1
1-Sec Period Acceleration (S1) in %g 1.0 3.1 1.8 2.8 7.9
Peak Ground Acceleration in %g (Note 5) 0.8 2.0 2.8(*) 1.0 6.0
Site Class (Note 4) D D D D D
Precipitation, inches:
Rainfall, Average Annual 2.9 3.9 3.6 3.3 1.1
Rainfall Maximum in 24 hours 1.5 3.8 2.8 2.5 4.6
Rainfall Intensity Note 3 Note 3 Note 3 Note 3 Note 3
Isokeraunic Levels (days lightning/year) 15 5 31 21 5
See notes at the end of the document.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
Page 20 of 27
Table 2 – Design Data - Customary Units (Continued)
Data Categories
East/West Pump Stations
No. 3 No. 6 No. 10 Guriat Hafr
Al-Batin Hail Haradh
Elevation Above Sea Level, ft 1738 2529 2840 1653 1358 3283 984
Station Coordinates: Latitude North 25°10' 24°42' 24°06' 31°25' 27°53' 27°26' 24°04'
Longitude East 47°30' 44°58' 41°02' 37°17' 45°33' 41°41' 49°01'
Ambient Air & Soil Temperatures, (°F):
Average Annual Temperature 77 77 72 68 77 72 81
Average Daily Max. Temp. (hottest month) 97 93 93 84 97 91 99
Monthly Normal Max. Temp. (hottest month) 109 108 108 100 109 102 113
Average Daily Soil Temp. (3 ft below grade) 91 90 91 - - - 93
Mo. Normal Max. Soil Temp. (3 ft below grade) 93 91 93 - - - 97
Lowest One-Day Mean Temperature 41 45 - 32 36 30 36
Highest One-Day Mean Temperature 100 102 - 100 106 100 118
Lowest Recorded Temperature 28 23 28 16 23 16 21
Highest Recorded Temperature 117 115 111 117 131 118 122
Summer Design Dry Bulb Temp. @ 1% 111 109 - 106 - 108 -
Mean Coincident Wet Bulb Temp. @ 1% - - - 64 - 66 -
Summer Design Dry Bulb Temp. @ 2.5% 109 106 - 102 - 106 -
Mean Coincident Wet Bulb Temp. @ 2.5% - - - 64 - 64 -
Summer Design Wet Bulb Temp. @ 1% - - - 72 - 68 -
Mean Coincident Dry Bulb Temp. @ 1% - - - 93 - 102 -
Summer Design Wet Bulb Temp. @ 2.5% - - - 70 - 66 -
Mean Coincident Dry Bulb Temp. @ 2.5% - - - 90 - 100 -
Summer Design Dry Bulb Temp. @ 5% - - - 100 - 104 -
Mean Daily Range 25 27 34 31 23 27 38
Winter Design Dry Bulb Temp. @ 99% - - - 30 - 30 -
Wind:
Basic Wind Speed, 3-sec gust, mph) 50 yr 90 93 103 99 109 112 90
Exposure Category (Note 1) C C C C C C C
Prevailing Direction N SE W WNW N S NNE
Earthquake Data:
Short Period Acceleration (SS) in %g 0.9 11.7 18.1 14.3 2.4 13.4 15.9
1-Sec Period Acceleration (S1) in %g 0.3 3.4 5.2 4.0 0.6 4.3 4.5
0.2 2.0 4.0 5.7(*) 1.0(*) 3.0 3.0
Site Class (Note 4) D D D D D D D
Precipitation, inches:
Rainfall, Average Annual - - - 1.9 5.0 5.1 1.6
Rainfall Maximum in 24 hours - - - 1.5 2.6 3.1 0.6
Rainfall Intensity Note 3 Note 3 Note 3 Note 3 Note 3 Note 3 Note 3
Isokeraunic Levels (days lightning/year) 18 16 8 11 22 31 16
See notes at the end of the document.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
Page 21 of 27
Table 2 – Design Data – Customary Units (Continued)
Data Categories Hawtah Hofuf Jeddah Jizan Ju’ay-mah
Jubail Khafji
Elevation Above Sea Level, ft 2083 525 56 23 16 20 3
Station Coordinates: Latitude North 22°58’ 25°30’ 21°43’ 16°52’ 26°47’ 27°2’ 28°24’
Longitude East 46°54’ 49°34’ 39°11’ 42°35’ 49°56’ 49°32’ 48°32’
Ambient Air & Soil Temperatures, (°F):
Average Annual Temperature 79 81 82 86 77 79 81
Average Daily Max. Temp. (hottest month) 97 99 91 93 93 97 100
Monthly Normal Max. Temp. (hottest month) 109 113 102 99 106 108 108
Average Daily Soil Temp. (3 ft below grade) 93 86 - - 88 91 97
Mo. Normal Max. Soil Temp. (3 ft below grade) 95 88 - - 88 91 97
Lowest One-Day Mean Temperature 39 41 61 70 46 45 45
Highest One-Day Mean Temperature 106 108 99 97 104 104 106
Lowest Recorded Temperature 25 28 48 54 36 37 34
Highest Recorded Temperature 120 131 118 118 118 122 117
Summer Design Dry Bulb Temp. @ 1% 111 117 106 100 108 113 109
Mean Coincident Wet Bulb Temp. @ 1% 66 75 75 82 82 73 -
Summer Design Dry Bulb Temp. @ 2.5% 109 115 102 100 102 111 108
Mean Coincident Wet Bulb Temp. @ 2.5% 64 75 75 82 75 73 -
Summer Design Wet Bulb Temp. @ 1% 70 84 86 86 88 90 -
Mean Coincident Dry Bulb Temp. @ 1% 102 102 95 97 97 95 -
Summer Design Wet Bulb Temp. @ 2.5% 68 82 84 86 88 88 -
Mean Coincident Dry Bulb Temp. @ 2.5% 104 100 95 97 95 95 -
Summer Design Dry Bulb Temp. @ 5% 108 113 100 99 104 109 106
Mean Daily Range 25 29 20 13 16 22 16
Winter Design Dry Bulb Temp. @ 99% 39 41 59 70 45 45 45
Wind:
Basic Wind Speed, 3-sec gust, mph 50 yr 90 96 84 103 90 90 90
Exposure Category (Note 1) C C C C C C C
Prevailing Direction NNE NNW NW SW NNW NNW NW
Earthquake Data:
Short Period Acceleration (SS) in %g 0.5 16.0 30.1 43.5 8.9 8.5 7.6
1-Sec Period Acceleration (S1) in %g 0.1 4.6 11.0 12.4 3.2 3.1 5.0
Peak Ground Acceleration in %g (Note 5) 3.0 3.0 7.0 10.0 2.0 3.4 3(*)
Site Class (Note 4) D D E D D D D
Precipitation, inches:
Rainfall, Average Annual 4.4 3.6 2.2 5.3 3.5 4.7 4.1
Rainfall Maximum in 24 hours 2.0 2.2 2.9 3.5 2.6 4.5 2.3
Rainfall Intensity Note 3 Note 3 Note 3 Note 3 Note 3 Note 3 Note 3
Isokeraunic Levels (days lightning/year) 15 18 9 36 24 25 20
See notes at the end of the document.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
Page 22 of 27
Table 2 – Design Data – Customary Units (Continued)
Data Categories Khamis Mushayt
Khurais Makkah Manifa Marjan Medina
Elevation Above Sea Level, ft 6727 1410 856 33 69 2073
Station Coordinates: Latitude North 18°18’ 25°05’ 21°26’ 27° 36’ 28°27’ 24°31’
Longitude East 42°48’ 48°08’ 39°46’ 49° 0’ 49°42’ 39°35’
Ambient Air & Soil Temperatures, (°F):
Average Annual Temperature 68 81 88 79 79 82
Average Daily Max. Temp. (hottest month) 75 100 97 99 93 99
Monthly Normal Max. Temp. (hottest month) 90 108 109 108 102 109
Average Daily Soil Temp. (3 ft below grade) - 93 - - - 93
Mo. Normal Max. Soil Temp. (3 ft below grade) - 95 - - - 95
Lowest One-Day Mean Temperature 46 - 61 34 50 46
Highest One-Day Mean Temperature 82 - 106 104 102 108
Lowest Recorded Temperature 30 28 46 32 46 32
Highest Recorded Temperature 104 126 122 122 113 118
Summer Design Dry Bulb Temp. @ 1% 90 122 113 111 - 113
Mean Coincident Wet Bulb Temp. @ 1% 59 72 77 - - 66
Summer Design Dry Bulb Temp. @ 2.5% 88 120 111 109 - 111
Mean Coincident Wet Bulb Temp. @ 2.5% 59 72 75 - - 66
Summer Design Wet Bulb Temp. @ 1% 68 81 84 - - 72
Mean Coincident Dry Bulb Temp. @ 1% 77 104 102 - - 100
Summer Design Wet Bulb Temp. @ 2.5% 66 81 82 - - 70
Mean Coincident Dry Bulb Temp. @ 2.5% 75 104 100 - - 102
Summer Design Dry Bulb Temp. @ 5% 86 117 109 108 - 109
Mean Daily Range 22 34 22 22 5 23
Winter Design Dry Bulb Temp. @ 99% 41 46 61 41 - 48
Wind:
Basic Wind Speed, 3-sec gust, mph 50 yr 90 101 84 90 90 75
Exposure Category (Note 1) C C C C Note 2 C
Prevailing Direction SSW N N NW NW W
Earthquake Data:
Short Period Acceleration (SS) in %g 19.3 2.8 25.0 9.1 22.3 25.4
1-Sec Period Acceleration (S1) in %g 5.5 0.8 9.0 3.2 8.1 7.2
Peak Ground Acceleration in %g (Note 5) 4.0 0.7 10(*) 2.5 5.0 6.0
Site Class (Note 4) D D D D D D
Precipitation, inches:
Rainfall, Average Annual 8.7 3.2 4.3 4.1 - 2.6
Rainfall Maximum in 24 hours 3.9 - 2.8 2.4 - 2.1
Rainfall Intensity - Note 3 Note 3 Note 3 Note 3 Note 3
Isokeraunic Levels (days lightning/year) 77 17 20 20 20 20
See notes at the end of the document.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
Page 23 of 27
Table 2 – Design Data – Customary Units (Continued)
Data Categories Najran Qaisumah Qasim Qatif Rabigh Rafha
Elevation Above Sea Level, ft 3956 1168 2116 13 16 1456
Station Coordinates: Latitude North 17°36’ 28°20’ 26°18’ 26°30’ 22°43’ 29°37’
Longitude East 44°25’ 46°07’ 43°58’ 50°00’ 39°01’ 43°30’
Ambient Air & Soil Temperatures, (°F):
Average Annual Temperature 79 77 77 77 82 73
Average Daily Max. Temp. (hottest month) 91 99 95 91 91 93
Monthly Normal Max. Temp. (hottest month) 102 111 108 102 100 108
Average Daily Soil Temp. (3 ft below grade) - - - 90 - -
Mo. Normal Max. Soil Temp. (3 ft below grade) - - - 91 - -
Lowest One-Day Mean Temperature 43 36 36 46 63 34
Highest One-Day Mean Temperature 99 108 106 102 102 106
Lowest Recorded Temperature 30 27 19 36 52 21
Highest Recorded Temperature 117 129 120 124 118 120
Summer Design Dry Bulb Temp. @ 1% 104 115 113 104 104 113
Mean Coincident Wet Bulb Temp. @ 1% 63 68 66 82 73 70
Summer Design Dry Bulb Temp. @ 2.5% 102 113 111 102 102 111
Mean Coincident Wet Bulb Temp. @ 2.5% 63 68 66 82 73 70
Summer Design Wet Bulb Temp. @ 1% 70 72 72 93 84 75
Mean Coincident Dry Bulb Temp. @ 1% 93 104 106 93 95 108
Summer Design Wet Bulb Temp. @ 2.5% 68 70 68 91 82 73
Mean Coincident Dry Bulb Temp. @ 2.5% 93 108 106 93 93 106
Summer Design Dry Bulb Temp. @ 5% 102 111 109 97 100 108
Mean Daily Range 22 25 27 27 14 27
Winter Design Dry Bulb Temp. @ 99% 45 36 36 46 59 32
Wind:
Basic Wind Speed, 3-sec gust, mph 87 112 93 93 93 96
Exposure Category (Note 1) C C C C C C
Prevailing Direction E N N NNW WNW W
Earthquake Data:
Short Period Acceleration (SS) in %g 25.0 1.1 11.2 8.3 18.8 0.6
1-Sec Period Acceleration (S1) in %g 7.8 0.3 3.2 2.9 6.7 0.2
Peak Ground Acceleration in %g (Note 5) 5.0 0.3 2.0 1.0 4.0 0.2(*)
Site Class (Note 4) D D D D D D
Precipitation, inches:
Rainfall, Average Annual 2.5 4.9 6.0 3.4 2.4 3.7
Rainfall Maximum in 24 hours 6.2 2.5 3.4 2.6 2.5 4.8
Rainfall Intensity Note 3 Note 3 Note 3 Note 3 Note 3 Note 3
Isokeraunic Levels (days lightning/year) 13 20 21 24 8 13
See notes at the end of the document.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
Page 24 of 27
Table 2 – Design Data – Customary Units (Continued)
Data Categories Ras
Tanura Riyadh Safaniya Sharorah Shaybah Shedgum
Elevation Above Sea Level, ft 7 1994 7 2378 230 964
Station Coordinates: Latitude North 26°42’ 24°42’ 28°00’ 17°28’ 22°21’ 25°36’
Longitude East 50°05’ 46°44’ 48°48’ 47°6’ 54°03’ 49°24’
Ambient Air & Soil Temperatures, (°F):
Average Annual Temperature 79 81 77 82 86 81
Average Daily Max. Temp. (hottest month) 95 99 93 97 104 99
Monthly Normal Max. Temp. (hottest month) 102 109 111 108 113 117
Average Daily Soil Temp. (3 ft below grade) - 91 84 - 95 91
Mo. Normal Max. Soil Temp. (3 ft below grade) - 93 86 - 97 93
Lowest One-Day Mean Temperature 46 41 45 41 50 39
Highest One-Day Mean Temperature 100 108 102 102 109 106
Lowest Recorded Temperature 32 25 36 32 36 30
Highest Recorded Temperature 118 120 117 120 127 120
Summer Design Dry Bulb Temp. @ 1% 106 113 106 109 117 113
Mean Coincident Wet Bulb Temp. @ 1% 81 66 79 70 68 70
Summer Design Dry Bulb Temp. @ 2.5% 104 111 102 108 115 113
Mean Coincident Wet Bulb Temp. @ 2.5% 73 66 79 70 70 70
Summer Design Wet Bulb Temp. @ 1% 86 70 88 82 77 79
Mean Coincident Dry Bulb Temp. @ 1% 95 104 93 104 99 90
Summer Design Wet Bulb Temp. @ 2.5% 86 68 86 79 73 75
Mean Coincident Dry Bulb Temp. @ 2.5% 93 106 93 100 100 91
Summer Design Dry Bulb Temp. @ 5% 102 109 99 108 115 111
Mean Daily Range 14 25 7 23 22 27
Winter Design Dry Bulb Temp. @ 99% 46 41 46 46 50 43
Wind:
Basic Wind Speed, 3-sec gust, mph 50 yr 90 90 90 84 90 96
Exposure Category (Note 1) C C C C C C
Prevailing Direction NNW N NW NE NNE NNW
Earthquake Data:
Short Period Acceleration (SS) in %g 8.8 0.7 6.8 5.0 8.1 15.9
1-Sec Period Acceleration (S1) in %g 3.2 0.2 2.5 1.0 2.3 4.5
Peak Ground Acceleration in %g (Note 5) 2.0 0.2 1.0 2.0(*) 1.0 3.0
Site Class (Note 4) D D D D D D
Precipitation, inches:
Rainfall, Average Annual 4.3 4.6 3.9 2.8 0.9 3.2
Rainfall Maximum in 24 hours 3.9 2.8 2.0 3.0 0.5 3.1
Rainfall Intensity Note 3 Note 3 Note 3 Note 3 Note 3 Note 3
Isokeraunic Levels (days lightning/year) 24 16 20 11 10 20
See notes at the end of the document.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
Page 25 of 27
Table 2 – Design Data – Customary Units (Continued)
Data Categories Tanajib Tabuk Taif Turaif Udhailiyah
Elevation Above Sea Level, ft 33 2522 4766 2795 886
Station Coordinates: Latitude North 27°52’ 28°22’ 21°29’ 31°41’ 25°09’
Longitude East 48°46’ 36°35’ 40°33’ 38°40’ 49°20’
Ambient Air & Soil Temperatures, (°F):
Average Annual Temperature 77 72 73 66 81
Average Daily Max. Temp. (hottest month) 97 88 84 84 99
Monthly Normal Max. Temp. (hottest month) 108 100 95 97 108
Average Daily Soil Temp. (3 ft below grade) 84 72 - - 90
Mo. Normal Max. Soil Temp. (3 ft below grade) 86 73 - - 91
Lowest One-Day Mean Temperature 34 37 43 30 43
Highest One-Day Mean Temperature 104 99 91 99 106
Lowest Recorded Temperature 32 14 32 18 30
Highest Recorded Temperature 120 113 111 113 120
Summer Design Dry Bulb Temp. @ 1% 111 106 99 104 115
Mean Coincident Wet Bulb Temp. @ 1% 79 66 63 64 72
Summer Design Dry Bulb Temp. @ 2.5% 109 104 97 102 113
Mean Coincident Wet Bulb Temp. @ 2.5% 79 64 63 63 72
Summer Design Wet Bulb Temp. @ 1% 88 70 72 68 81
Mean Coincident Dry Bulb Temp. @ 1% 93 99 90 93 100
Summer Design Wet Bulb Temp. @ 2.5% 86 68 70 66 77
Mean Coincident Dry Bulb Temp. @ 2.5% 93 97 88 93 97
Summer Design Dry Bulb Temp. @ 5% 108 102 95 99 113
Mean Daily Range 22 25 20 27 27
Winter Design Dry Bulb Temp. @ 99% 41 34 41 28 41
Wind:
Basic Wind Speed, 3-sec gust, mph 50 yr 90 93 93 96 96
Exposure Category (Note 1) C C C C C
Prevailing Direction NW NNW W W NNW
Earthquake Data:
Short Period Acceleration (SS) in %g 8.1 27.1 16.2 18.6 16.0
1-Sec Period Acceleration (S1) in %g 3.0 11.0 4.4 5.3 4.6
Peak Ground Acceleration in %g (Note 5) 6.0 1.0 6.5(*) 4.0 3.0
Site Class (Note 4) D D D D D
Precipitation, inches:
Rainfall, Average Annual 4.1 1.9 6.9 3.3 2.7
Rainfall Maximum in 24 hours 2.3 1.9 6.7 3.4 0.9
Rainfall Intensity Note 3 Note 3 Note 3 Note 3 Note 3
Isokeraunic Levels (days lightning/year) 20 14 89 12 18
See notes at the end of the document.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
Page 26 of 27
Table 2 – Design Data – Customary Units (Continued)
Data Categories Uthmaniyah Wadi
Al-Dawaser Wajeh Yanbu
Elevation Above Sea Level, ft 758 2040 79 33
Station Coordinates: Latitude North 25°13’ 20°30’ 26°12’ 24°07’
Longitude East 49°18’ 45°12’ 36°29’ 38°03’
Ambient Air & Soil Temperatures, (°F):
Average Annual Temperature 77 82 77 82
Average Daily Max. Temp. (hottest month) 97 99 86 91
Monthly Normal Max. Temp. (hottest month) 117 109 91 102
Average Daily Soil Temp. (3 ft below grade) 90 - - 88
Mo. Normal Max. Soil Temp. (3 ft below grade) 91 - - 90
Lowest One-Day Mean Temperature 43 45 52 54
Highest One-Day Mean Temperature 106 104 95 106
Lowest Recorded Temperature 30 32 34 41
Highest Recorded Temperature 120 120 117 122
Summer Design Dry Bulb Temp. @ 1% 115 113 95 111
Mean Coincident Wet Bulb Temp. @ 1% 72 68 77 77
Summer Design Dry Bulb Temp. @ 2.5% 113 111 93 108
Mean Coincident Wet Bulb Temp. @ 2.5% 72 68 81 77
Summer Design Wet Bulb Temp. @ 1% 77 73 86 86
Mean Coincident Dry Bulb Temp. @ 1% 99 106 91 97
Summer Design Wet Bulb Temp. @ 2.5% 75 72 84 86
Mean Coincident Dry Bulb Temp. @ 2.5% 99 106 90 95
Summer Design Dry Bulb Temp. @ 5% 109 109 91 106
Mean Daily Range 29 22 13 22
Winter Design Dry Bulb Temp. @ 99% 37 45 54 52
Wind:
Basic Wind Speed, 3-sec gust, mph 50 yr 96 90 90 90
Exposure Category (Note 1) C C C C
Prevailing Direction NNW ESE WNW W
Earthquake Data:
Short Period Acceleration (SS) in %g 16.0 5.0 27.1 20.4
1-Sec Period Acceleration (S1) in %g 4.6 1.0 7.0 5.8
Peak Ground Acceleration in %g (Note 5) 3.0 2.0(*) 10.8(*) 4.0
Site Class (Note 4) D D D D
Precipitation, inches:
Rainfall, Average Annual 2.7 1.1 1.0 1.4
Rainfall Maximum in 24 hours 0.9 1.1 4.6 1.9
Rainfall Intensity Note 3 Note 3 Note 3 Note 3
Isokeraunic Levels (days lightning/year) 18 10 5 7
See notes at the end of the document.
Document Responsibility: Environmental Standards Committee SAES-A-112
Issue Date: 17 May 2011
Next Planned Update: 17 May 2016 Meteorological and Seismic Design Data
Page 27 of 27
1 Exposure D shall be used within 0.46 km (.2 mi) of the shoreline
2 Offshore station – apply SAES-M-005
3 Rainfall intensity – I
I = K
(t + b)
Freq. K
b SI units Customary units
5 yr 2443 96.2 27.5
10 yr 2941 115.8 24.9
25 yr 3420 134.6 23.7
50 yr 3810 150.0 21.0
100 yr 4300 169.3 20.0
4 Site classification shall be based on site-specific geotechnical investigation to be carried out as per requirements of Section 4 of SAES-A-113. Accordingly, the site classes indicated in the Appendices are to be used for preliminary structural analyses only when soil geotechnical data is not available.
* Minimum value for sites without many years of recorded data
NA Not applicable
- Data not available on document issue date
5 The PGA values shall be used directly for the potential liquefaction assessment.