# Presentation: 323599

## Ocean Overview

**Ocean Overview**

- Chuck McClain - Ocean Color
- Bob Evans - SST
- NASA MODIS-VIIRS
- Joint Science Team Meeting
- May 14-16, 2008

**Notes:**
 monitoring harmful blooms from space gives coastal communities ability to take precautionary measures
 fishing bans
 beach closures
 image shows true color (top) and chlorophyll (bottom)  views of bloom in mouth of Mississippi
 similar information was used to monitor a red tide bloom off coast of Texas last fall

## Science Highlights: FLH

- Behrenfeld et al., in preparation

## Science Highlights: FLH cont.

- Behrenfeld et al., in preparation

- Fluorescence Yield: corrected for pigment packaging & nonphotochemical-quenching

**Fluorescence Yield**
**(radiative)**

**Dust deposition (mg/m****2****d)**

**High Fluorescence/Low Dust**

**High Fluorescence/High Dust**

**Low Fluorescence**

## MODIS/Terra Analyses

## MODIS-Aqua Residual RVS - Lwn(412)

**Scan Pixel**

- -10%

- +10%

**MS1**

**MS2**

## MODIS-Terra Residual RVS - Lwn(412)

**MODIS-Terra Residual RVS - Lwn(412)**

**Scan Pixel**

- -10%

- +10%

**MS1**

**MS2**

**MODIS-Terra Residual RVS - Lwn(412)**

**Scan Pixel**

- -10%

- +10%

**MS1, Det 1-10**

**MS2, Det 1-10**

**MODIS-Terra Residual RVS in nLw**

**412**

**443**

**After SeaWiFS-based Vicarious Characterization**

**488**

**412**

**443**

**488**

**Before SeaWiFS-based Vicarious Characterization**

**List **_**not**_** in priority order:**
**-**** ****VisNIR IFA Optical Crosstalk**
**- VisNIR ROIC Static Electronic Crosstalk**
- - VisNIR Dynamic Crosstalk
**- LWIR/SMWIR Static Crosstalk **
**  ****&/or Ghosting**
**- Gain Switch Thresholds, Noise, & Linearity**
**- Stray Light Contamination**
- - Reflective Band Uniformity
- - Emissive Band Calibration
**- Relative Spectral Response (RSR) **
**- End-to-End (system level) Calibration **
- - Sensor Stability (Temperature, SC  voltage, EMI/EMC)
- - **Response Versus Scan (RVS) Angle**
**- Characterization of Polarization Sensitivity**
- - Ambient to T/V to On-orbit Spatial Performance

** ****VIIRS Science Issues**

**Delay in delivery of VIIRS FU-1 and launch for NPP (eight months)**
**Ocean community request for FU-1 IFA replacement risk assessment denied.**

- Items presently of particular interest to oceans.

**OBPG Data Set & Mission Support Activities**

- SeaWiFS
- MODIS/Aqua:  Ocean Color & SST*
- MODIS/Terra:  Ocean Color & SST*
- NPP/VIIRS:  Ocean Color & SST
- Sensor & EDR algorithm performance
**Launch in 2010**
- Aquarius (data system): **Launch in 2010**
- Historical data
- CZCS
- OCTS
- Sensor & mission concept development
- Ocean Radiometer for Carbon Assessment (ORCA)
- Aerosols, Clouds, Ecology (ACE)

- *Primarily data
-   processing  &
-   distribution

**Reprocessing of all OC data **
**sets planned for this summer.**

## OceanColor 

**Web**** **
**	****	**
**oceancolor.gsfc.nasa.gov****	**
**Consolidated **
**data access, information,**
**services and**
**community**
**feedback**

## Slide 12

## Over 27 Million Files Served

**Over 27 Million Files Served**

## MODIS Sea Surface Temperatures 

- Robert H. Evans & Peter J. Minnett

**Meteorology & Physical Oceanography **
**Rosenstiel School of Marine and Atmospheric Science**
**University of Miami**
**Miami**

- Separate Presentation File