RU COOL Direct Broadcast AcquisitionsL-band (1.2 meter antenna)

United States

NOAA POES AVHRR

Product: 1km sea surface temperatures (SST),

de-clouded SST

NASA SeaWiFs (past)Product: 1km chlorophyll, reflectance

backscatter, absorption

ChinaChina FY1 MVISR

Product: 1km relative chlorophyll

RU COOL Direct Broadcast AcquisitionsX-band (3.6 meter antenna)

United States

NASA Aqua and Terra MODIS

Product: 1km SST, chlorophyll, reflectance

absorption, backscatter

Europe

ESA Metop-A AVHRR

Products: 1km SST

India

IRSO Ocean Color Monitor

Products: 360m chlorophyll

Sea Surface Temperatures

AVHRR Aqua MODIS

Data ProcessingDe-clouding Sea Surface Temperatures

SST is examined on a per-pixel basis to determine if cloud contamination ispresent. A series of 3 tests are performed and a mask value is assignedto each pixel denoting the results.

Test 1: SST fails time test if > 2degC cooler than previous 72-hours meanTest 2: SST fails climatology if > 5degC colder than climatologyTest 3: SST is sequentially run through time and climatology tests; neighboring

pixels within 3km will also fail if test is not passed

Mask Values (can be additive):0: Most rigorous, pixel passes all tests

1: Pixel failed the time test2: Pixel failed the climatology test4: Pixel failed combined testing

Suitable data is selected based on the desired mask value.

Comparison of Raw andDe-clouded AVHRR Sea Surface Temperature

• OCM

Mask value applied: 0

Before de-clouding After de-clouding

De-clouded AVHRR Sea Surface Temperature

3-day Rolling Average 3-day Temperature Variability

De-clouded AVHRR Sea Surface Temperature

8-day Rolling Average 8-day Temperature Variability

East Coast 7-day composite

1, 3, and 7-day AVHRR SST Composites for Google Earth

FY1-D and MODIS Chlorophyll Products

FY1-D Chlorophyll Aqua MODIS Chlorophyll

Aqua MODIS Absorption and Backscatter

Absorption and backscatter is produced at five wavelengths: 412, 443, 488, 531 and 551.

Absorption at 488 Backscatter at 488

Aqua MODIS Absorption

Phytoplankton Absorption at 443 Detritus Absorption at 443

Phytoplankton Absorption is produced at 443, Detritus at wavelengths 412 and 443

Simplified L-band Process Flow

Simplified X-band Process Flow