vos quality monitoring tools world meteorological organizationintergovernmental oceanographic...

VOS Quality Monitoring Tools

World Meteorological Organization Intergovernmental OceanographicCommission of UNESCO

Ship Observations Team ~ integrating and coordinating international ship-based observing programmes for JCOMM ~

SOT-IV16-21 April 2007, Geneva, Switzerland

Julie FletcherChair, VOSP

16-21 April 2007 SOT-IV, VOS Quality Monitoring Tools 2

Outline

• VOS Website Monitoring Tools» Surface Marine Data Monitoring by UKMO» VOSClim Monthly statistics» VOS Quality Monitoring tools from Meteo France» Search for Multiple recruitments from Meteo France

• VOS Status Map

• VOSClim Suspect List Feedback

• Quality Information Relay Mechanism

• Onboard QM TurboWin Tool

• The Value of Feedback


VOS Website Monitoring Tools

VOS Monitoring from JCOMM VOS scheme website


www.metoffice.gov.uk/research/nwp/observations/monitoring/marine/index.html


http://www.ncdc.noaa.gov/oa/climate/vosclim/vosclim-stats.html


http://www.meteo.shom.fr/vos-monitoring/


http://www.meteo.shom.fr/vos-monitoring/multi-recruit.html


http://wo.jcommops.org/cgi-bin/WebObjects/JCOMMOPS.woa/wa/map?type=GTSM_VOS

VOS Status Map


VOSClim Suspect List Feedback

• Advise RTMC [email protected] of investigations & actions taken to correct bad data identified on the VOSClim Suspect List

Example: G'day Colin (Sarah for info)

Re: SEAKAP (VNNM) cited for RH. I inspected this vessel (SEAKAP) on 09/01/07, and I noted that theclip supporting the reservoir in the screen had corroded and brokenoff. It’s possible that the reservoir may have toppled over and readingstaken when the wick was dry. A new clip was fitted during theinspection including a fresh wick on the wet thermometer. RH should be OK now.CheersTaffy (PMA Sydney)


Quality Information Relay Mechanism

• JCOMMOPS quality information relay» Originally implemented for drifting buoy

» Mailing list ([email protected])

» Web page

» Met. Services in best position to undertake QC

» Appropriate tools

» Assimilation schemes

» Models

» Goal

» Detection of systematic errors

» Relay of information to data producers


Quality Information Relay

• Under JCOMMOPS web site:“Monitoring”

”Quality””Ship based”

• Posting quality information messages• UK Met Office monitoring statistics• NOAA Surface Marine QC flags• GTSPP monthly QC report



http://wo.jcommops.org/cgi-bin/WebObjects/QCRelay

• From data users» Know quality & problems» Detect systematic errors» Don’t know who operates ship

• Back to data producers» Can take corrective action

» Check/change instruments» Remove bias» Suppress from GTS



• Via JCOMMOPS» Identification of ships and contact points» Database loaded thanks to

» Pub. 47 information» Other information e.g. E-SURFMAR» Direct contacts

• Advantages» Rationalization» Automated =>operational service» One reporting portal» Speeds up correction of problems


Onboard QM TurboWin Tool

• From TurboWin Ver3.6 there is the ability for the PMO to view the Obs on screen in traditional logbook coded format whilst on board the ship

• IMMT data not easily readable, but new option allows PMO to view the Obs for monitoring purposes


Mov

e S

hip

Cod

ed L

og


group-00 = SHIP_report_identifiergroup-0 = call_sign_or_identification_numbergroup-1 = day_of_month(YY)[UTC]-UTC(GG)-wind_speed_indicator(iw)group-2 = position_indicator(99)-latitude(LaLaLa)[degrees_and_tenths]group-3 = Quadrant(Qc)-longitude(LoLoLoLo)[degrees_and_tenths]group-4 = indicator_precipitation_group(ir)-indicator_weather_group(ix)-height_of_lowest_cloud(h)-visibility(VV)group-5 = total_cloud_amount(N)-wind_direction_true(dd)[tens_of_degrees]-wind_speed(ff)[units_see_iw]group-6 = group_indicator(1)-sign_of_temp(sn)[code]-air_temp(TTT)[degrees_and_tenths]group-7 = group_indicator(2)-sign_of_temp(sn)[code]-dew_point(TdTdTd)[degrees_and_tenths]group-9 = group_indicator(4)-corrected_pressure(PPPP)[omitting_thousands]group-10 = group_indicator(5)-characteristic_pressure_change(a)-amount_pressure_change(ppp)group-12 = group_indicator(7)-present_weather(ww)-past_weather(W1)-past_weather(W2)group-13 = group_indicator(8)-amount_low_clouds_or_medium_if_no_low(Nh)-type_low(Cl)-type_medium(Cm)-type_high(Cm)group-15 = selection_indicator(222)-course_made_good(Ds)-average_speed(vs)group-16 = group_indicator(0)-sign_and_type_sea_temp(ss)-sea_temp(TwTwTw)[degrees_and_tenths]group-18 = group_indicator(2)-period_wind_waves(PwPw)[seconds]-height_wind_waves(HwHw)[half_metres]group-19 = group_indicator(3)-1st_swell_waves_dir_from(dw1dw1)[tens_of_degrees]-2nd_swell_waves_dir_from(dw2dw2)[tens_of_degrees]group-20 = group_indicator(4)-1st_swell_waves_period(Pw1Pw1)[seconds]-1st_swell_waves_height(Hw1Hw1)[half_metres]group-21 = group_indicator(5)-2nd_swell_waves_period(Pw2Pw2)[seconds]-2nd_swell_waves_height(Hw2Hw2)[half_metres]group-22 = group_indicator(6)-type_ice_accretion(Is)-tickness_ice(EsEs)[cm]-rate_ice_accretion(Rs)group-23 = group_indicator(8)-sign_and_type_wet_bulb_temp(sw)-wet_bulb_temp(TbTbTb)[degrees_and_tenths]group-24 = concentration_or_arrangement_ice(ci)-stage_development_ice(Si)-ice_land_origin(bi)-bearing_ice_edge(Di)-ice_situation(zi)-group-00 group-0 - - group-1 group-2 group-3 group-4 group-5 group-6 group-7 group-9 group-10 group-12 group-13 group-15 group-16 group-189 …….BBXX callsign Year Month YYGGiw 99LaLaLa QcLoLoLoLo irixhVV Nddff 1snTTT 2snTdTdTd 4PPPP 5appp 7wwW1W2 8NhClCmCh 222Dsvs 0ssTwTwTw 2PwPwHwHw …….BBXX SMMO 2005 06 07104 99493 70043 41699 52131 10136 21053 40155 52022 70222 85200 22213 00184 20403 3//// 4//// 5//// 6//// 80066 ICE /////


QM Feedback to Ships

• Vital that NMS provide feedback about Obs quality and quantity to National VOS

• Real-time feedback via PMO visit, email, or phone call is most effective as targets current observers

• Feedback on problems should be done in a manner to encourage and assist observers

• Most ships view feedback whether good or bad as positive as it demonstrates their Obs are being used

• Always include some thanks and encouragement in feedback messages


Use of the Monitoring Tools and timely feedback to ships to correct problems will improve the quality and quantity of Obs

provided by VOS


UKMO VOS Monitoring Tools

• VOS Monthly Monitoring Reports» For all VOS based on pub 47 list» List of SUSPECT ships with time series plots

• VOS Time of Receipt Statistics» TOR graph for all VOS» TOR graph showing national VOS fleets» TOR stats for individual callsigns» TOR stats by Country by month

• Biannual Report on the Quality of Marine Surface Observations

vos quality monitoring tools world meteorological organizationintergovernmental oceanographic...

Documents