terra/aqua instrument calibration: sw revision 1 · 2007-12-06 · terra/aqua instrument...
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Terra/Aqua Instrument Calibration: SW Revision 1
Kory J. PriestleySusan Thomas, Denise Cooper,
Phil Hess, Grant Matthews, Peter Szewczyk,Dale Walikainen, Robert Wilson
CERES Science Team MeetingWilliamsburg, VA
May 2-4, 2006
NASA Langley Research Center / Science Directorate
CERES Instrument Working Group Homepage
http://asd-www.larc.nasa.gov/Instrument
NASA Langley Research Center / Science Directorate
Agenda
Today’s talks are going to be primarily concerned with SW Calibrationissues… whether they impact the SW or SW/TOT channels.
- Provide a status of the BDS and ERBE Like Data Products
- Edition 3 vs. Edition2_Rev1
- Potential modifications of the Cal/Val protocol.
- Use Deep Convective Clouds vs. SWICS Lamps
- New operational constraints,
- impacts to special operations
- Detailed discussion of Edition3 algorithm modifications.
NASA Langley Research Center / Science Directorate
Questions and Comments for thought
1. In Edition3 does the Science Team want all of the CERES instrumentsplaced on the same radiometric scale?
2. Is the Science Team comfortable with using Deep Convective Clouds asa relative calibration target?
3. New operational constraints require additional justifications for fieldcampaign/intercalibration coverage requests.
NASA Langley Research Center / Science Directorate
CERES Terra/Aqua Health & Status
With the exception of the SW channel on the CERES/Aqua FM-4 Instrument,
the CERES Terra/Aqua instruments are functioning nominally…
???FM5?
46 +
76 +
9
Collected Data(Months)
6/025/02FM3, FM4Aqua
3/0012/99FM1, FM2Terra
1/9811/97PFMTRMM
ScienceInitiationLaunchInstrumentsSpacecraft
NASA Langley Research Center / Science Directorate
CERES Terra/Aqua Health & Status
With the exception of the SW channel on the CERES/Aqua FM-4 Instrument,
the CERES Terra/Aqua instruments are functioning nominally…
???FM5?
46 +
76 +
9
Collected Data(Months)
6/025/02FM3, FM4Aqua
3/0012/99FM1, FM2Terra
1/9811/97PFMTRMM
ScienceInitiationLaunchInstrumentsSpacecraft
20.3 Instrument Years of Data
NASA Langley Research Center / Science Directorate
BDS and ERBE-Like Release Strategy
Edition1 - Static Algorithms and coefficients - baseline product used in cal/val protocol
Edition2 - Utilizes temporally varying coefficients to correct for traceable radiometric drift. All spectral changes are broadband and ‘gray’.
Edition3 - Release date Fall 2006. Will incorporate temporally varying spectral artifacts in the SW measurements. A complete re-analysis of Ground Calibration with additional component characterization measurements.
User Applied Revisions - Advance capabilities to the users prior to therelease of the next Edition.
Edition2 products lag Edition1 by a minimum of 4 months
NASA Langley Research Center / Science Directorate
Notification of RevisionCERES BDS (BiDirectional Scan) TerraEdition2Data Quality Summary
Investigation: CERESData Product: BiDirectional Scan [BDS]Data Set: Terra (Instruments: FM1, FM2)Data Set Version: Edition2
The purpose of this document is to inform users of the accuracy of this data product as determined by the CERES Team. This documentbriefly summarizes key validation results, provides cautions where users might easily misinterpret the data, provides links to furtherinformation about the data product, algorithms, and accuracy, gives information about planned data improvements. This document alsoautomates registration in order to keep users informed of new validation results, cautions, or improved data sets as they become available.
This document is a high-level summary and represents the minimum information needed by scientific users of this data product. It is stronglysuggested that authors, researchers, and reviewers of research papers re-check this document for the latest status before publication of anyscientific papers using this data product.
Table of Contents•Nature of the BDS Product•Updates to Current Edition•User Applied Revisions•Validation and Quality Assurance•Current Estimated Uncertainty of Data•Cautions When Using Data•Expected Reprocesings•References•Web links to Relevant information•Referencing Data in Journal Articles•Giving Data to Other Users
NASA Langley Research Center / Science Directorate
CERES SSF Ed2B SW TOA Flux Anomaly
Clear Ocean
Clear Desert
NASA Langley Research Center / Science Directorate
Terra SW Internal Calibration ResultsFM1 In-Flight Internal Calibration Results
-0.5-0.4-0.3-0.2-0.10.00.10.20.30.40.5
2/1/00
6/1/00
10/1/
002/1
/016/1
/01
10/1/
012/1
/026/1
/02
10/1/
022/1
/036/1
/03
10/1/
032/1
/046/1
/04
10/1/
042/1
/056/1
/05
Date
Sens
or R
espo
nse
Cha
nge,
Per
cent
SW-L1 SW-L2 SW-L3
Normalized to Start of Mission
FM2 In-Flight Internal Calibration Results
-0.5-0.4-0.3-0.2-0.10.00.10.20.30.40.5
2/1/00
6/1/00
10/1/
002/1
/016/1
/01
10/1/
012/1
/026/1
/02
10/1/
022/1
/036/1
/03
10/1/
032/1
/046/1
/04
10/1/
042/1
/056/1
/05
Date
Sens
or R
espo
nse
Cha
nge,
Per
cent
SW-L1 SW-L2 SW-L3
Normalized to Start of Mission
NASA Langley Research Center / Science Directorate
Spectral Degradation : SWICS vs. Earth Spectra
0 1 2 3 4Wavelength (micron)
0 1 2 3 4Wavelength (micron)
Spec
tral
Res
pons
e, N
orm
aliz
ed R
adia
nce
1.0
0.8
0.6
0.4
0.2
0.0
NASA Langley Research Center / Science Directorate
LEO Missions Subject to Spectral DarkeningBandpasses of Selected Instruments
0
1
2
3
4
5
6
7
8
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Wavelength (Microns)
Ind
ex
Modis SeaWifs LandSat7 Toms SORCE-SIM SORCE SOLSTICE GOME
NASA Langley Research Center / Science Directorate
Spectral Darkening on Similar MissionsGlobal Ozone Monitoring Experiment (GOME) Spectral Darkening
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Wavelength/Radiometric Channel (um)
Rela
tive R
esp
on
se 1996
1997
1998
1999
2000
2001
NASA Langley Research Center / Science DirectoratePage 14
SD degradation (accumulated at a 6-monthperiod) as a function of wavelength
Faster degradation rate after fixing the SDdoor at “open position”
Yr 1
Yr 2Yr 3
Yr 4
Yr 5
Modis Solar Diffuser Spectral Degradation
NASA Langley Research Center / Science Directorate
Direct Comparison of Nadir Radiance Measurements
Two CERES instruments on a common platform allows for a uniquevalidation opportunity…..
Direct Comparison of simultaneous Nadir measurements
Each CERES/Terra instrument views nadir every 3.3 seconds
Thus, we obtain nearly simultaneous measurements of the same geo-location (Δt < 3.3 seconds)….
Spatial, angular, and temporal sampling issues are virtually eliminated.
26,000 co-located (but not independent) measurements in a given day,provides a very rigorous statistical tool.
Results can be discretized by scene type to enhance the analysis.
NASA Langley Research Center / Science Directorate
Terra Edition2 Nadir Direct Comparison
1.005
1.000
0.995
0.990
0.985
1.0151.0101.0051.0000.9950.9900.9850.980
Mar-00 Mar-01 Mar-02 Mar-03 Mar-04
All-Sky
FM1 in Xtrack
FM2 in Xtrack
All-SkyClear OceanSW2
f
SW1f
SW2f
SW1f
SW Nadir Radiances
Mar-00 Mar-01 Mar-02 Mar-03 Mar-04
FM1 in Xtrack
FM1 in RAPS
NASA Langley Research Center / Science Directorate
Terra Edition2 Nadir Direct Comparison
1.005
1.000
0.995
0.990
0.985
1.0151.0101.0051.0000.9950.9900.9850.980
Mar-00 Mar-01 Mar-02 Mar-03 Mar-04
All-Sky
FM1 in XTRACK
FM1 in RAPS
All-SkyClear OceanSW2
f
SW1f
SW2f
SW1f
SW Nadir Radiances
FM1 in Xtrack
FM1 in RAPS
NASA Langley Research Center / Science Directorate
RAPS
Whats the difference between RAPS and FAPS?
FAPS
NASA Langley Research Center / Science Directorate
RAPS
Whats the difference between RAPS and FAPS?
FAPS
Ground Track
Scan Plane
NASA Langley Research Center / Science Directorate
RAPS
Whats the difference between RAPS and FAPS?
FAPS
NASA Langley Research Center / Science Directorate
RAPS
Whats the difference between RAPS and FAPS?
FAPS
NASA Langley Research Center / Science Directorate
Terra Edition2 Nadir Direct Comparison
1.005
1.000
0.995
0.990
0.985
1.0151.0101.0051.0000.9950.9900.9850.980
Mar-00 Mar-01 Mar-02 Mar-03 Mar-04
All-Sky
FM1 in XTRACK
FM1 in RAPS
All-SkyClear OceanSW2
f
SW1f
SW2f
SW1f
SW Nadir Radiances
FM1 in Xtrack
FM1 in RAPS
NASA Langley Research Center / Science Directorate
Edition2_Rev1 Scaling Factors
1.00
1.01
1.02
1.03
Mar-00 Mar-01 Mar-02 Mar-03 Mar-04 Mar-05
All Sky Clear Ocean
1.00
1.01
1.02
1.03
Mar-00 Mar-01 Mar-02 Mar-03 Mar-04 Mar-05
All Sky Clear Ocean
1.00
1.01
1.02
1.03
Jul-02 Jan-03 Jul-03 Jan-04 Jul-04 Jan-05
All Sky Clear Ocean
1.00
1.01
1.02
1.03
Jul-02 Jan-03 Jul-03 Jan-04 Jul-04 Jan-05
All Sky Clear Ocean
Terra - FM1
Terra - FM2
Aqua - FM3
Aqua - FM4
NASA Langley Research Center / Science Directorate
A table of Edition2_Rev1 monthly scaling factors is providedvia the CERES Data Quality Summaries…
Edition2_Rev1 SW Scaling Factors
NASA Langley Research Center / Science Directorate
Application of Edition2_Rev1 Scaling Factors
NASA Langley Research Center / Science Directorate
Application of Edition2_Rev1 Scaling Factors
30S - 30N
90S - 90N
Deseasonalized monthly anomalies in Terra FM1 and Aqua FM4 all-sky SW TOA Flux
_Rev1_Rev1
NASA Langley Research Center / Science Directorate
Edition2_Rev1 Key Assumptions
The Rev1 algorithm requires two key assumptions:
1. That the Xtrack instrument is radiometrically stable
2. The SWICS lamps provide a radiometrically stablecalibration source.
NASA Langley Research Center / Science Directorate
Operations to Characterize Spectral Darkening
EliminatedEliminatedNoXtrackNoXtrackApril
EliminatedEliminatedNoXtrackNoXtrackMarch
EliminatedEliminatedNoXtrackNoStowedFebruary
EliminatedEliminatedNoXtrackNoStowedJanuary
EliminatedEliminatedNoXtrackNoXtrackDecember
EliminatedEliminatedNoXtrackNoXtrackNovember
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
FM1 SolarCalibrations
No
No
No
No
No
Yes
Yes
Daily
Yes
FM2 SolarCalibrations
Xtrack
Xtrack
Xtrack
Xtrack3,5
Xtrack3
Xtrack
Xtrack
Xtrack
Xtrack
FM1 AzimuthGimbal
Notes:1. Short-Earth scan profile turn-around reduced 8 degrees on March 31, 2005 to both FM1 and FM2.2. Expanded solar-avoidance region criteria May 13, 2005.3. Greenland Summer Solstice Terra-Aqua Inter-Calibration, June 6- July 6, 20054. GERB Operations, June 9-30, 2005.5. Nighttime internal calibrations, July 1-7, 2005.6. Valencia Over-Flights, September 12-17, 2005.
EliminatedEliminatedXtrackOctober
EliminatedEliminatedXtrack6September
--StowedAugust
--StowedJuly
EliminatedEliminatedXtrack4June
DarkeningRate Impact
FM2 RAMDirection
FM2 SolarExposure
FM2 AzimuthGimbal
Month(2005)
NominalNominalNominalXtrack, AtrackFebruary
Reduced2Eliminated2Rotating, AtrackMay
No ChangeNominalReduced1RotatingApril
No ChangeAcceleratedAcceleratedXtrackMarch
NASA Langley Research Center / Science Directorate
-1.28
-1.26
-1.24
-1.22
-1.20
-1.18
-1.16
-1.146/1/05
6/29/05
7/27/05
8/24/05
9/21/05
10/19/05
11/16/05
12/14/05
1/11/06
2/8/06
3/8/06
4/5/06
Date
100*(FM2-FM1)/FM1
Terra Pre and Post Stow SW Direct Compare
Terra Edition1 All-Sky Daily Direct Compare
FM2 FM1Xtrack Stow Xtrack Stow Xtrack
NASA Langley Research Center / Science Directorate
CERES Onboard SW Calibration Philosophy
PRT PRT SUN Monitor Diode
ICSBB MAM SWICS
WindowSensor
TotalSensor
ShortwaveSensor
Field-of-ViewCoalignment
Traceability
Sources
RadiometricChannel
ValidationStudies
NASA Langley Research Center / Science Directorate
MAM’s, SWICS, and DCC’s
NASA Langley Research Center / Science Directorate
CERES Onboard SW Calibration EquipmentShortwave Internal Calibration Source (SWICS)
• Quartz-halogen tungsten lamp (2100, 1900, 1700 K spectrums)
• SiPd independently monitors lamp output
• Design specification is +-0.5% stability over 5-year mission
• Designed primarily to transfer Ground Calibrationmeasurements into orbit
Mirror Attenuator Mosaic (MAM)
• Solar Diffuser plate attenuates direct solar view (~5800KSpectrum)
• MAM is a Nickel substrate with Aluminum coated sphericalcavities or divots
• Provides a Relative calibration of the Shortwave channel andthe SW portion of the Total channel
• Designed to provide a long-term on-orbit SW calibration source.
• Solar Cal results to date are suspect due to large initial drift inMAM surface reflectances…
NASA Langley Research Center / Science Directorate
CERES Solar Calibration Results
-2
-1
0
1
2
3
4
5
6
7
May-02 Nov-02 May-03 Nov-03 May-04 Nov-04Date
Sens
or R
espo
nse,
Per
cent
age
Cha
nge
FM3 SW FM3 TOT
-2
-1
0
1
2
3
4
5
6
7
May-02 Nov-02 May-03 Nov-03 May-04 Nov-04Date
Sens
or R
espo
nse,
Per
cent
age
Cha
nge
FM4 SW FM4 TOT
-2
-1
0
1
2
3
4
5
6
7
Feb-00 Aug-00 Feb-01 Aug-01 Feb-02 Aug-02 Feb-03 Aug-03 Feb-04 Aug-04Date
Sens
or R
espo
nse,
Per
cent
age
Cha
nge
FM1 SW FM1 TOT
-2
-1
0
1
2
3
4
5
6
7
Feb-00 Aug-00 Feb-01 Aug-01 Feb-02 Aug-02 Feb-03 Aug-03 Feb-04 Aug-04Date
Sens
or R
espo
nse,
Per
cent
age
Cha
nge
FM2 SW FM2 TOT
NASA Langley Research Center / Science Directorate
CERES TRMM/PFM Internal Calibration Results
NASA Langley Research Center / Science Directorate
CERES Onboard SW Calibration Philosophy
PRT PRT SUN Monitor Diode
ICSBB MAM SWICS
WindowSensor
TotalSensor
ShortwaveSensor
Field-of-ViewCoalignment
Traceability
Sources
RadiometricChannel
ValidationStudies
NASA Langley Research Center / Science Directorate
CERES Onboard SW Calibration Philosophy
PRT PRT SUN Monitor Diode
ICSBB DCC SWICS
WindowSensor
TotalSensor
ShortwaveSensor
Field-of-ViewCoalignment
Traceability
Sources
RadiometricChannel
ValidationStudies
NASA Langley Research Center / Science Directorate
0
0.2
0.4
0.6
0.8
Jul-0
2Aug
-02
Sep-
02Oct
-02
Nov-0
2Dec
-02
Jan-
03Fe
b-03
Mar
-03
Apr-0
3May
-03
Jun-
03Ju
l-03
Aug-0
3Se
p-03
Oct-0
3Nov
-03
Dec-0
3Ja
n-04
Feb-
04Mar
-04
Apr-0
4May
-04
Jun-
04Ju
l-04
Aug-0
4Se
p-04
Oct-0
4Nov
-04
Dec-0
4Ja
n-05
Feb-
05Mar
-05
Date
Sen
sor
Resp
on
se
Ch
an
ge,
Perc
en
t
DCC Level 1 Level 2 Level 3
Aqua SW Internal and DCC Calibration Results
0
0.2
0.4
0.6
0.8
Jul-0
2Aug
-02
Sep-
02Oct
-02
Nov-0
2Dec
-02
Jan-
03Fe
b-03
Mar
-03
Apr-0
3May
-03
Jun-
03Ju
l-03
Aug-0
3Se
p-03
Oct-0
3Nov
-03
Dec-0
3Ja
n-04
Feb-
04Mar
-04
Apr-0
4May
-04
Jun-
04Ju
l-04
Aug-0
4Se
p-04
Oct-0
4Nov
-04
Dec-0
4Ja
n-05
Feb-
05Mar
-05
Date
Sen
sor
Resp
on
se
Ch
an
ge,
Perc
en
t
DCC Level 1 Level 2
Normalized to Initial Flight Calibrations
FM3
FM4
Normalized to Initial Flight Calibrations
NASA Langley Research Center / Science Directorate
Back-Up Material
NASA Langley Research Center / Science Directorate
New Operational Constraints
NASA Langley Research Center / Science Directorate
CERES ES-8 Edition2_Rev1 Summary
•Cal/Val Protocol demonstrates radiometric stability of the data products through 12/2005 of….
Note: Values apply to all-sky global averages Units are in %/yr
.1.1<.1<.1.1.1<.1<.1.1.1<.1<.1WN
.25.25<.1<.1.4.3.3.2.5.4.4.2SW
.1.1<.1<.1.1.1<.1<.1.125.125.125.1LWnight
.15.15.125.125.3.3.125.125.4.4.6.3LWday
FM4FM3FM2FM1FM4FM3FM2FM1FM4FM3FM2FM1
Edition2_Rev1Edition2Edition1
NASA Langley Research Center / Science Directorate
CERES BDS and ERBE-Like Product Status
6/02 - 12/05YesEdition2
6/02 - 12/05YesEdition2
1/98 - 8/98 , 3/00YesEdition2
1/98 - 8/98 , 3/00YesEdition1BDSTRMM
1/98 - 8/98 , 3/00YesEdition1ERBE-Like
6/02 - present
6/02 - present
2/00 - 12/05
2/00 - present
2/00 - 12/05
2/00 - present
Months ProcessedAvailableVersionProductSpacecraft
YesEdition1ERBE-like
YesEdition1BDSAqua
YesEdition2
YesEdition1ERBE-like
YesEdition2
YesEdition1BDSTerra
Note: Red text indicates months are in final validation prior to public release.
NASA Langley Research Center / Science Directorate
Pre and Post FM2 Stow SW Direct Compare
Terra Edition1 All-Sky Daily Direct Compare
Xtrack Stow Xtrack
NASA Langley Research Center / Science Directorate
Spectral Darkening on Similar Missions
Spare NIMBUS ERB Radiometer flown on LDEFMeasured Transmittance Change of Suprasil W
4mm sample, 5 yr. exposure
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Wavelength (Microns)
Rati
o t
o W
itn
ess
Sam
ple
NASA Langley Research Center / Science Directorate
Instrument Artifact Removal StrategyRemote sensing instruments generally exhibit time varying artifacts in their
data products. For CERES these artifacts stem from either of 2 physicalentities…..
• Radiometric Gain Change- Wavelength independent change in sensor responsivity- Corrections implemented in Count Conversion algorithm (SS1)
• Spectral Response Change- Wavelength dependent change in sensor optics- Corrections implemented in Spectral Unfiltering algorithms (SS2)
The Edition2 production strategy assumes that spectral response changes are ‘Gray’over broad spectral regions. In other words, we assume uniform spectral responsechanges in these broad regions.
Spectral Region
8-12 um-WN-<5.0 umSW
>3.0 um<3.0 umTotalLWSW
RadiometricChannel
NASA Langley Research Center / Science Directorate
FM2 In-Flight Internal Calibration Results
-2.0-1.5-1.0-0.50.00.51.01.52.02.53.0
2/1/00
6/1/00
10/1/
002/1
/016/1
/01
10/1/
012/1
/026/1
/02
10/1/
022/1
/036/1
/03
10/1/
032/1
/046/1
/04
10/1/
042/1
/056/1
/05
Date
Sens
or R
espo
nse
Cha
nge,
Per
cent
TOTAL WN SW-L2 SW-L1 SW-L3
Normalized to Ground Calibration Data
CERES Internal Calibration Results
FM1 In-Flight Internal Calibration Results
-2.0-1.5-1.0-0.50.00.51.01.52.02.53.0
2/1/00
6/1/00
10/1/
002/1
/016/1
/01
10/1/
012/1
/026/1
/02
10/1/
022/1
/036/1
/03
10/1/
032/1
/046/1
/04
10/1/
042/1
/056/1
/05
Date
Sens
or R
espo
nse
Cha
nge,
Per
cent
TOTAL WN SW-L2 SW-L1 SW-L3
Normalized to Ground Calibration Data
FM4 In-Flight Internal Calibration Results
-5-4-3-2-1012345
6/1/02
8/1/02
10/1/
02
12/1/
022/1
/034/1
/036/1
/038/1
/03
10/1/
03
12/1/
032/1
/044/1
/046/1
/048/1
/04
10/1/
04
12/1/
042/1
/054/1
/056/1
/05
Date
Sen
sor R
espo
nse
Cha
nge,
Per
cent
TOTAL WN SW-L2 SW-L1
Normalized to Ground Calibration Data
FM3 In-Flight Internal Calibration Results
-5-4-3-2-1012345
6/1/02
8/1/02
10/1/
02
12/1/
022/1
/034/1
/036/1
/038/1
/03
10/1/
03
12/1/
032/1
/044/1
/046/1
/048/1
/04
10/1/
04
12/1/
042/1
/054/1
/056/1
/05
Date
Sens
or R
espo
nse
Cha
nge,
Per
cent
TOTAL WN SW-L2 SW-L1 SW-L3
Normalized to Ground Calibration Data
NASA Langley Research Center / Science Directorate
CERES Gain/Spectral Change Summary
-
-
-
-
LW/TOT
.7
.5
.4
-
SW
TOA FluxAll-Sky(W/m^2)
1.6
1.6
3.6
1.1
LWDay
.75
1.1
1.0
.65
LWNight
FM4
FM3
FM2
FM1
1.2
1.4
2.6
.45
SW/TOT
-
-
-
-
WN
-
-
.40
-
SW
ChannelSpectral Response
(%)
ChannelGain(%)
.80-.30
--.35Terra
--.40
.50
SWWNTOTSpacecraft
-.45Aqua
1. All values are maximum on-orbit changes
2. Ground to flight shifts are accounted for separately
3. SW/TOT < 3.0 microns, LW/TOT > 3.0 microns
4. TOA Flux values are all-sky global averages
Cumulative changes incorporated in Edition 2 BDS and ERBE-Like products
NASA Langley Research Center / Science Directorate
CERES ES-8 Edition2_Rev1 Summary
•Cal/Val Protocol demonstrates radiometric stability of the data products through 12/2005 of….
Note: Values apply to all-sky global averages Units are in %/yr
.1.1<.1<.1.1.1<.1<.1.1.1<.1<.1WN
.25.25<.1<.1.4.3.3.2.5.4.4.2SW
.1.1<.1<.1.1.1<.1<.1.125.125.125.1LWnight
.15.15.125.125.3.3.125.125.4.4.6.3LWday
FM4FM3FM2FM1FM4FM3FM2FM1FM4FM3FM2FM1
Edition2_Rev1Edition2Edition1
NASA Langley Research Center / Science Directorate
CERES ES-8 Edition2_Rev1 Summary
•Cal/Val Protocol demonstrates radiometric stability of the data products through 12/2005 of….
Note: Values apply to all-sky global averages Units are in %/yr
.1.1<.1<.1.1.1<.1<.1.1.1<.1<.1WN
.25.25<.1<.1.4.3.3.2.5.4.4.2SW
.1.1<.1<.1.1.1<.1<.1.125.125.125.1LWnight
.15.15.125.125.3.3.125.125.4.4.6.3LWday
FM4FM3FM2FM1FM4FM3FM2FM1FM4FM3FM2FM1
Edition2_Rev1Edition2Edition1
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