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RU COOL Direct Broadcast Acquisitions L-band (1.2 meter antenna)

RU COOL Direct Broadcast Acquisitions L-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 China China FY1 MVISR

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RU COOL Direct Broadcast Acquisitions L-band (1.2 meter antenna)

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  1. 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 China China FY1 MVISR Product: 1km relative chlorophyll

  2. 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

  3. Sea Surface Temperatures AVHRR Aqua MODIS

  4. De-clouding Sea Surface Temperatures Data Processing • SST is examined on a per-pixel basis to determine if cloud contamination is • present. A series of 3 tests are performed and a mask value is assigned • to each pixel denoting the results. • Test 1: SST fails time test if > 2degC cooler than previous 72-hours mean • Test 2: SST fails climatology if > 5degC colder than climatology • Test 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 test • 2: Pixel failed the climatology test • 4: Pixel failed combined testing • Suitable data is selected based on the desired mask value.

  5. Comparison of Raw andDe-clouded AVHRR Sea Surface Temperature • OCM Before de-clouding After de-clouding Mask value applied: 0

  6. De-clouded AVHRR Sea Surface Temperature 3-day Rolling Average 3-day Temperature Variability

  7. De-clouded AVHRR Sea Surface Temperature 8-day Rolling Average 8-day Temperature Variability

  8. East Coast 7-day composite 1, 3, and 7-day AVHRR SST Composites for Google Earth

  9. FY1-D and MODIS Chlorophyll Products FY1-D Chlorophyll Aqua MODIS Chlorophyll

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

  11. Aqua MODIS Absorption Phytoplankton Absorption is produced at 443, Detritus at wavelengths 412 and 443 Phytoplankton Absorption at 443 Detritus Absorption at 443

  12. Simplified L-band Process Flow

  13. Simplified X-band Process Flow

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