Near-Real Time Surface Radiative Fluxes and Meteorology ...

5/7/2013 CERES Science Team Meeting 1

CERES FLASHFlux Status: Near-Real Time Surface Radiative

Fluxes and Meteorology for Research and Applications

Paul Stackhouse, David P. Kratz, and Takmeng Wong, (NASA LaRC)

Shashi Gupta, Parnchai Sawaengphokhai and Anne Wilber (SSAI)

Lindsay Parker and the

Atmospheric Science Data Center Team (SSAI)

FLASHFlux Update •  Brief introduction •  Publications

–  SSF paper submitted; reviewers comments received –  State of Climate Methodology and Results

•  Promotion to v3A: current status –  Description of changes: New calibration, New reanalysis

– GEOS 5.9 (FP-IT), Algorithm upgrades –  Sample results –  New web pages

•  Plans –  Near-term promotion of 3A –  Continued upgrades



FLASHFlux Overview •  FLASHFLUX = Fast Longwave And SHortwave

Radiative Fluxes from CERES and MODIS

•  FLASHFlux Objectives –  Compute radiative fluxes from CERES and MODIS observations

from both Terra and Aqua within one week of measurement (currently available within 4 days)

–  Global gridded and time averaged radiative flux and meteorological data sets using both Terra and Aqua when available (currently available within 6 days)

–  Conduct scientific investigations and provide for scientific and applied science uses

–  Demonstrate processing system pushing data products to research and applications uses


FLASHFLUX: Schematic Mapping to Realized and Potential Uses

Specialized CERES

Processing System

CERES MODIS

GMAO GEOS

Met Data

SMOBA (OMI O3)

Atmospheric Science

Data Center

Scientific Uses Mission: CERES,

CloudSat and Megha- Tropiques

Land and Ocean Assimilation (??)

Agricultural Crop Projections

Educational Uses NASA Earth Observatory

CERES S’COOL

LaRC Applied Sciences

Applied Science Uses Energy Resource and Load

Science Inputs

TOA Flux Variability

Building Energy Monitoring

Field Campaigns

State of the Climate 2012 Analysis

•  CERES FLASHFlux contributed to the special annual BAMS report on the “State of the Climate in 2011”.

•  Issue appeared in Aug. 2012, providing estimates of changes in year to year Global Earth Radiation Budget for the first time.

•  These data have now been extended and used longer overlap with CERES EBAF products to contribute to this year’s 2012 report.

5/7/2013 5 CERES Science Team Meeting



CERES FLASHFlux TOA flux variability for 2011 for BAMS “State of the Climate” report:

•  FF monthly average annual global TOA normalized to EBAF from 7/2009 to 6/2012

•  Needed remove trend in calibration difference •  2 σ monthly uncertainty (W m-2) = ±0.14 Wm-2, ±0.12 Wm-2 and

±0.18 Wm-2 for OLR/RSW/Total net •  TSI from SORCE instrument •  Global annual average anomalies:



•  Time series show relatively large fluctuation

•  Variability is consistent with NAO phase change

-3-2-10123

2000 2002 2004 2006 2008 2010 2012

Time (Year)

NET

RadiativeFluxAnomalies(Wm-2)

-3-2-10123

2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013

CERES FLASHFlux

TSI-RSW

-3-2-10123

2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013

CERES EBAF Ed2.6r

OLR

FLASHFlux Upgrade •  FLASHFlux v2H upgraded to v3A

–  Data retroactively processed back to Jan 1, 2013 and processing forward to catch up to real-time

–  Production progressing; data sets publicly available

•  Upgrade Changes –  Calibration upgrade to Ed 3 –  Upgrade MOA to use GEOS 5.9.1 (FP-IT)

•  Using GEOS estimates of ozone profile rather than SMOBA

–  Using AFWA snow/ice maps as processed by CERES –  Algorithm upgrades

•  SW: Rayleigh scattering revision and MATCH aerosols •  LW: high surface temperature and inversion corrections


FLASH Temporal

Interpolation TOA & Surface

Averages

FLASH Grid hourly

TOA/Surface Fluxes

FLASH DAYAVG: Local Time TOA/ Surface Hourly/ Daily Averages

FLASH SFC_HR

Legend MOA (SS1) Clouds (SS2) Instantaneous Fluxes (SS3) Time and Space gridding (SS4) Time and Space averaging (SS5) User Data and Interfaces (SS6)

Generate FLASH Spectral

Correction Coefficients

Inversion & Surface Estimation

FLASH SSF

FLASH SCC

FLASH Spectral

Response Functions

Update Clear Reflectance

History

Determine Cloud Properties

MODIS Imager data MOD03: geolocation

MOD02S: subset radiance MOD04: aerosol

CERES Snow &Ice:

ESNOW/EICE

FLASH Clouds (SSFI)

CERES Radiances Terra/Aqua Baseline1QC

IES

CRHU: Clear Reflectance

History Update

CRH: Clear Reflectance

History

FLASH MOA: Meteorological,

Ozone & Aerosol data

NCEP SMOBA

ozone

Regrid Humidity & Temperature

Fields

GEOS-DAS GEOS 5.2

SSF Subsetter

Subset Data Sets for S’COOL

and Validation

FLASHFlux Data Flow (v2H)

Global Monthly Averaging

Scaled and filled TOA

Global Monthly TOA Time Series

State of Climate Analysis


Official FLASHFlux data products highlighted with black box

FLASH Temporal

Interpolation TOA & Surface

Averages

FLASH Grid hourly

TOA/Surface Fluxes

FLASH DAYAVG: Local Time TOA/ Surface Hourly/ Daily Averages

FLASH SFC_HR

Legend MOA (SS1) Clouds (SS2) Instantaneous Fluxes (SS3) Time and Space gridding (SS4) Time and Space averaging (SS5) User Data and Interfaces (SS6)

Generate FLASH Spectral

Correction Coefficients

Inversion & Surface Estimation

FLASH SSF

FLASH SCC

FLASH Spectral

Response Functions

Update Clear Reflectance

History

Determine Cloud Properties

MODIS Imager data MOD03: geolocation

MOD02S: subset radiance MOD04: aerosol

CERES Snow &Ice:

ESNOW/EICE

FLASH Clouds (SSFI)

CERES Radiances Terra/Aqua Baseline1QC

IES

CRHU: Clear Reflectance

History Update

CRH: Clear Reflectance

History

FLASH MOA: Meteorological,

Ozone & Aerosol data

Regrid Humidity & Temperature

Fields

GEOS-DAS GEOS 5.9

(FP-IT

SSF Subsetter

Subset Data Sets for S’COOL

and Validation

FLASHFlux Data Flow (v3A)

Official FLASHFlux data products highlighted with black box

Global Monthly Averaging

Scaled and filled TOA

Global Monthly TOA Time Series

State of Climate Analysis


GEOS FP-IT •  GEOS FP-IT (Forward Processing – Investigative

Team) –  New GEOS 5.9.1 version replaces operational version GEOS 5.2

•  0.5o latitude x 0.625o longitude resolution •  Hourly surface, 3 hourly upper air profile

–  Represents a reprocessed assimilation that is “semi-frozen” with changes before reviewed by the Investigator Team

•  Current being produced from the Jan 1, 2000 to present (3 streams RP-IT1, RP-IT2 and RP-IT3)

•  Production plans to be complete by Fall 2013

•  Multiple changes from previous versions –  Assimilates AIRS radiances among many (HIRS3,4; AMSU-A, B,

E; SSM/IS , MHS, IASI, etc. also assimilation GPS) –  Produces chemistry products such as O3 (SBUV, OMI) –  Features an aerosol assimilation (AOD MODIS Terra/Aqua)


Upgrade to Inputs: FP-IT



FLASHFlux SSF Data Products

CERES-like Single Scanner Footprint

(SSF) (Terra and Aqua overpasses; 30 km

nadir; 2H Processed

through 3/31/2013

3A (not available yet) is processed through

Feb 2013)

Early Surface Flux Validation


-90

-60

-30

0

30

60

90

-180 -150 -120 -90 -60 -30 0 30 60 90 120 150 180

48.31N, 105.10W Fort Peck, MT

40.72N, 77.93W Penn State, PA

40.05N, 88.37W Bondville, IL

34.25N, 89.87W Goodwin Creek, MS

40.13N, 105.24W Boulder, CO

43.73N, 96.92W Sioux Falls, SD

36.60N, 97.48W SGP ARM

2.06S, 147.42 E Manus

0.52S, 166.9 E, Nauru

36.9N, 75.71W Ches Light

24.3N 124.2 E Ishigakijima,Japan

12.4S, 130.9E, Darwin, AU

71.32N, 203.4W North Slope, AK

Only SurfRad and a few other sites available for Jan 2013

0

100

200

300

400

500

600

0 100 200 300 400 500 600

DLF

Vers

ion

3A (W

m-2

)

Ground Measured DLF (W m-2)

N = 1159Bias = -4.7 W m-2

σ = 23.6 W m-2 0

100

200

300

400

500

600

0 100 200 300 400 500 600

DLF

Vers

ion

2H (W

m-2

)

Ground Measured DLF (W m-2)

N = 1159Bias = -2.3 W m-2

σ = 23.7 W m-2

LW SSF Early Validation (Jan 2013)


Mean Abs Diff = 37 W m-2 Mean Abs Diff = 19 W m-2

Terra and Aqua 2H 3A

Instantaneous fluxes at overpass times

SW SSF Early Validation (Jan 2013)


0

200

400

600

800

1000

1200

0 200 400 600 800 1000 1200

DSF

Vers

ion

2H (W

m-2

)

DSF Ground Measured (W m-2)

N = 398Bias = -0.5 W m-2

σ = 67.5 W m-2

0

200

400

600

800

1000

1200

0 200 400 600 800 1000 1200

DSF

Vers

ion 3

A (W

m-2

)

DSF Ground Measured (W m-2)

N = 398Bias = -10.9 W m-2

σ = 73.5 W m-2

Mean Abs Diff = 220 W m-2 Mean Abs Diff = 162 W m-2

Terra and Aqua 2H 3A

[-340

,-320

)[-3

20,-3

00)

[-300

,-280

)[-2

80,-2

60)

[-260

,-240

)[-2

40,-2

20)

[-220

,-200

)[-2

00,-1

80)

[-180

,-160

)[-1

60,-1

40)

[-140

,-120

)[-1

20,-1

00)

[-100

,-80)

[-80,-

60)

[-60,-

40)

[-40,-

20)

[-20,0

)[0,

20)

[20,40

)[40

,60)

[60,80

)[80

,100)

[100,1

20)

[120,1

40)

[140,1

60)

[160,1

80)

[180,2

00)

[200,2

20)

[220,2

40)

[240,2

60)

[260,2

80)

[280,3

00)

[300,3

20)

[320,3

40)0

10

20

30

40

50

60

70

80

90

100

Frequ

ency

Version 2H Difference (W m-2)

[-340

,-320

)[-3

20,-3

00)

[-300

,-280

)[-2

80,-2

60)

[-260

,-240

)[-2

40,-2

20)

[-220

,-200

)[-2

00,-1

80)

[-180

,-160

)[-1

60,-1

40)

[-140

,-120

)[-1

20,-1

00)

[-100

,-80)

[-80,-

60)

[-60,-

40)

[-40,-

20)

[-20,0

)[0,

20)

[20,40

)[40

,60)

[60,80

)[80

,100)

[100,1

20)

[120,1

40)

[140,1

60)

[160,1

80)

[180,2

00)

[200,2

20)

[220,2

40)

[240,2

60)

[260,2

80)

[280,3

00)

[300,3

20)

[320,3

40)0

10

20

30

40

50

60

70

80

90

100

Frequ

ency

Version 3A Difference (W m-2)

Surface SW flux measure-ments averaged +/- ½ hour overpass time


FLASHFlux Data Products

FLASHFlux Gridded and Temporally

Averaged Data 2H Products

(Terra+Aqua; Hourly/Daily; 1ox1o

resolution; Processed through

about 3/31/2013)

3A not yet available


FLASHFlux Gridded and Temporally Averaged Data Products (Jan. 3, 2013)

(Terra+Aqua; Daily; 1ox1o

resolution)


FLASHFlux TISA Product Differences (Jan. 3, 2013)

(Terra+Aqua; Daily; 1ox1o

resolution)

Monitoring and Targeting Case: NASA LaRC Badge and Pass Office

5/7/2013 23 CERES Science Team Meeting

Monitoring and Targeting Case: NASA LaRC Badge and Pass Office

(Results from RETScreen by Rene Ganoe)

Solar Panel Elec-trical Output (kWh)

FF 2H daily aver-aged SW fluxes

All points represent weekly average of daily inputs


Future Upgrades and Challenges •  FF data products to CERES subsetter •  Continued refinement of algorithms:

–  SW: Cloudy-sky transmission formula –  Improve near-real time surface albedos anomalies –  Aerosols: evaluation FP-IT compared to “Fast-MATCH”

•  Adapt to MODIS Collection 6 (Ed 4 Clouds) •  Improve consistency between CERES algorithms

and FLASHFlux (TISA/SYN) –  Evaluate using GEO? –  Adapt special version of TISA for monthly averaged maps

•  Develop new products and subsets => parameterizations for the applications like solar industry


Summary and Conclusions •  FLASHFlux publications:

–  revise SSF paper; write TISA –  Document SoC => reassess w/ EBAF 2.7

•  FLASHFlux 3A –  Assess and evaluate 3A; validate as possible; complete DQS and

promote to operational status –  Reprocess at least of part of 2012 to provide longer time series with

new algorithms and calibration

•  FLASHFlux Is Working Towards … –  Increasing data accessibility with subsetting –  Promoting various CERES upgrades for algorithms and subsystems –  Expanding Applied Science usage


FLASHFlux Web Sites:

http://flashflux.larc.nasa.gov

Near-Real Time Surface Radiative Fluxes and Meteorology ...

Documents

Transcript of Near-Real Time Surface Radiative Fluxes and Meteorology ...