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Coastal Zone Color Scanner CZCS

Coastal Zone Color Scanner CZCS. Wayne E. Esaias Goddard Space Flight Center Oceans and Ice Branch October 27, 2004. CZCS A Proof of Concept, Demonstration First Visible scanner optimized to look at the dark oceans. Limited duty (alt days to SMMR), 2% data to L2 .

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Coastal Zone Color Scanner CZCS

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  1. Coastal Zone Color ScannerCZCS Wayne E. Esaias Goddard Space Flight Center Oceans and Ice Branch October 27, 2004

  2. CZCS • A Proof of Concept, Demonstration • First Visible scanner optimized to look at the dark oceans. • Limited duty (alt days to SMMR), 2% data to L2 . • Complemented SeaSAT scatterometer, imager, altimeter. • How well can satellite data be used to identify and quantify material suspended and dissolved in ocean waters? • Can this information help advance our understanding of oceanic processes, and the role of the ocean in the earth system. • Highly successful

  3. James Acker ocean@daac.gsfc.nasa.gov http://daac.gsfc.nasa.gov/oceancolor/classic_scenes/00_classics_index.shtml

  4. CZCS Nimbus Experiment Team (CZCS NET) Frank Anderson NRIO, South Africa John Apel Johns Hopkins Univ., APL Roswell Austin Scripps Inst. Oceanography Dennis Clark NOAA/NESS Sayed El-Sayed Texas A & M Howard Gordon U. Miami Warren Hovis NOAA/NESS James Mueller GSFC & San Diego State Boris Sturm Joint Res. Center, Ispra Robert Wrigley NASA Ames Charles Yentsch Bigelow Laboratory Associates, Alternates Added Later W. Esaias NASA GSFC C. McClain NASA GSFC E. Baker U. Washington P. Schlittenhardt ? H. Vander Piepen DFVLR

  5. MAJOR ADVANCES Technology Spectral Bands, Depolarizer, Tilt worked Challenging radiometry - still is Atmospheric correction - clear water, dark target Need for SNR, calibration, stability Importance of vicarious calibration Importance of digital image processing Bio-Optics Biological Responses related to Physical Regimes Inverse methods, with an under-determined system First order assumptions work pretty well, most of the time, but there are important limitations. Gelbstoffe, sediment scattering, pigments

  6. MAJOR ADVANCES Global Science Provided first-ever synoptic sampling for biology. Revolutionized the perception of the marine biosphere. Joint Global Ocean Flux Study (Carbon) Variability and Magnitude of Photosynthesis in the Ocean is Comparable to Terrestrial Systems Operational Needs Feature Tracking Transparency - Visibility Fisheries Harmful Algal Blooms

  7. Pre-launch Gulf of Mexico Cruise, R/V GYRE Sayed El-Sayed Ed Baker Dennis Clark Al Strong Peter Schlittenhart Bob Wrigley

  8. Orinoco River Plume: nutrients > algae organic matter ocean currents Biological Physical Dynamics Phytoplankton Dynamics Ocean Carbon Flux

  9. Tasmania Gene Feldman http://daac.gsfc.nasa.gov/oceancolor/classic_scenes/00_classics_index.shtml

  10. Gulf Stream Location & Dynamics Acid Waste Dump, New York Bight James Acker ocean@daac.gsfc.nasa.gov http://daac.gsfc.nasa.gov/oceancolor/classic_scenes/00_classics_index.shtml

  11. from Oceanography from Space Brochure 2/84 U. Miami/GSFC

  12. Original standard L-2 Product - Film b&w positive Begin full global, digital products in 1985

  13. North Atlantic May, 1981 CZCS Global Processing (land NDVI -AVHRR) Gaps on monthly periods

  14. Nov 78 - June 81 Composite

  15. CZCS February Climatology 1979-1986

  16. MORE EVIDENCE OF SUCCESS

  17. SeaWiFS BIOSPHERE

  18. MODIS AQUA July 2002-Sept. 2004

  19. CZCS defines the beginning of the Ocean Biosphere Time Series Gregg et al. find evidence for a -6% decrease globally. Gregg W. W., M. E. Conkright, P. Ginoux, J. E. O'Reilly, N. W. Casey, Ocean primary production and climate: Global decadal changes, Geophys. Res. Lett., 30 (15), 1809, doi:10.1029/2003GL016889, 2003.

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