# Presentation: 196468

## Integration

**of the**
**AMSR-E Ocean Products**
**into 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**
**  ****T****A**** Calibration Over Land: characterize non-linearity**
**  ****Long Term Validation / Stability of Ocean Products**

**Frank Wentz, Chelle Gentemann, ****Thomas Meissner, Lucrezia Ricciardulli**
**Marty Brewer**
**Remote Sensing Systems, Santa Rosa, CA**

## 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, ...)**

**T****B**** (L2A) maintenance and improvement**
**Good Calibration has many applications**
**(not just for ocean products)**

## AMSR-E Hot Load, Corrected

**Effective Hot Load Temperature (time v. orbit position)**

**11**
**23**
**89B**

**7**
**19**
**37**
**89A**

## AMSR-E Hot Load, Corrected

**Effective Hot Load Temperature Anomaly (- 4 year average)**

**7**
**19**
**37**
**89A**

**11**
**23**
**89B**

## 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**

## TA Calibration Over Land 

**Before Katrina**

**T****A**** Calibration Over Land**** **

**   ****6.9 GHz response is not linear**
**   ****higher channels may be non-linear (to a lesser extent)**
***   ******T******eff***** correction -> precise calibration over the ocean **
**   ****if linear response -> extrapolate to warm scenes (land, ice)**
**   ****Improve ****T****B**** ****over land and ice by collocating observations with:**
**      ****SSM/I, TMI, and especially WindSat**** (very linear response)**
**  **

**Notes:**
37 H, asc minus dsc, V04

## Stability of Ocean Products 

**Validation  is extensive and ongoing**
**Meeting or exceeding requirements / expectations**

**Global Comparison**

## Long-term Stability of 

**Ocean Products**** **

**4 Year SST Trend: AMSR-E v. Reynolds**

## Long-term Stability:

**Wind Speed**

**To whom shall we compare?**
**(all of the above)**

**Notes:**
37 H, asc minus dsc, V05

## Validation Using Wind Speed Histograms

## Validation Using Wind Speed Histograms

**SSM/I**
**Version 5**

**SSM/I**
**Version 6**

## Integration

**of the**
**AMSR-E Ocean Products**
**into 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**
**  ****T****A**** Calibration Over Land**
**  ****Long Term Validation / Stability of Ocean Products**

**Frank Wentz, Chelle Gentemann, ****Thomas Meissner, Lucrezia Ricciardulli**
**Marty Brewer**
**Remote Sensing Systems, Santa Rosa, CA**