integration of the amsr-e ocean products into the existing satellite climate record
DESCRIPTION
Integration of the AMSR-E Ocean Products into the Existing Satellite Climate Record. Long Term Stability of AMSR-E Hot Load Correction T A Calibration Over Land: characterize non-linearity Long Term Validation / Stability of Ocean Products. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Integration of the AMSR-E Ocean Products into the Existing Satellite Climate Record](https://reader034.vdocument.in/reader034/viewer/2022051820/56814598550346895db28bcf/html5/thumbnails/1.jpg)
Integrationof the
AMSR-E Ocean Productsinto the
Existing Satellite Climate Record
Joint AMSR Science Team Meeting Telluride, Colorado, July 14-16, 2008
Long Term Stability of AMSR-E Hot Load Correction
TA Calibration Over Land: characterize non-linearity
Long Term Validation / Stability of Ocean Products
Frank Wentz, Chelle Gentemann, Thomas Meissner, Lucrezia RicciardulliMarty Brewer
Remote Sensing Systems, Santa Rosa, CA
![Page 2: Integration of the AMSR-E Ocean Products into the Existing Satellite Climate Record](https://reader034.vdocument.in/reader034/viewer/2022051820/56814598550346895db28bcf/html5/thumbnails/2.jpg)
Earth System Data Record (ESDR)Ocean Climate Data Record (OCDR)
Key variables in the global energy and water cycle Wind, Vapor, Cloud, Rain:
global oceans: 24 years (1987-2010) SST:
tropical oceans: 14 years (1997-2010)global oceans: 9 years (2002-2010)
(SSM/I, TMI, AMSR, WindSat, SSMIS, …)
TB (L2A) maintenance and improvementGood Calibration has many applications
(not just for ocean products)
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AMSR-E Hot Load, Corrected
Effective Hot Load Temperature (time v. orbit position)
11
23
89B
7
19
37
89A
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AMSR-E Hot Load, Corrected
Effective Hot Load Temperature Anomaly (- 4 year average)
7
19
37
89A
11
23
89B
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AMSR-E Hot Load Correction:Long Term Stability
Hot load correction is good, but based on ~3 years data
Does the annual cycle repeat predictably?
Is the hot load really warming with time?
Is the “warming” hot load a spurious artifact?
Re-analyze with more data (6+ years) -> better correction
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After Katrina
Before Katrina
TA Calibration Over Land
6.9 GHz response is not linear
higher channels may be non-linear (to a lesser extent)
Teff correction -> precise calibration over the ocean
if linear response -> extrapolate to warm scenes (land, ice)
Improve TB over land and ice by collocating observations with:
SSM/I, TMI, and especially WindSat (very linear response)
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Stability of Ocean Products
Validation is extensive and ongoingMeeting or exceeding requirements / expectations
Global Comparison
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Long-term Stability of Ocean Products
4 Year SST Trend: AMSR-E v. Reynolds
![Page 9: Integration of the AMSR-E Ocean Products into the Existing Satellite Climate Record](https://reader034.vdocument.in/reader034/viewer/2022051820/56814598550346895db28bcf/html5/thumbnails/9.jpg)
Long-term Stability:Wind Speed
To whom shall we compare?(all of the above)
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Validation Using Wind Speed Histograms
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Validation Using Wind Speed Histograms
SSM/IVersion 5
SSM/IVersion 6
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Integrationof the
AMSR-E Ocean Productsinto the
Existing Satellite Climate Record
Joint AMSR Science Team Meeting Telluride, Colorado, July 14-16, 2008
Long Term Stability of AMSR-E Hot Load Correction
TA Calibration Over Land
Long Term Validation / Stability of Ocean Products
Frank Wentz, Chelle Gentemann, Thomas Meissner, Lucrezia RicciardulliMarty Brewer
Remote Sensing Systems, Santa Rosa, CA