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Published bySteven Valentine Booker Modified over 9 years ago
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Gulf of Mexico Primary Productivity Estimates of NPP based on NASA Satellite data
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NPP estimates are obtained from www.science.oregonstate.edu/ocean.productivity/ as referenced by NASA Ocean Color Web www.science.oregonstate.edu/ocean.productivity/ Estimates available include SeaWiFS and MODIS-Aqua based estimates Products Available Sensor Date Range Spatial Resolution Temporal Resolution ModelFormat SeaWiFS Oct. 1997- 20099 km 8-day and Monthly VGPM, VGPM-e, CbPM hdf or xyz MODIS-A July 2002- Nov. 2012 4 and 9 km 8-day and Monthly VGPM, VGPM-e, CbPM hdf or xyz
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Currently obtained estimates include: Data Inventory Scripts and programs created to process current estimates are transferable to all available products VGPM is the Vertically Generalized Production Model (Behrenfeld and Falkowski,1997) CbPM is the Carbon-based Production Model (Westberry et al., 2008) All estimates use MODIS-A or SeaWiFS Chl and PAR along with AVHRR SST Clouds are filled using Oregon State’s proprietary gap-filling software Sensor Date Range Spatial Resolution Temporal Resolution ModelFormat SeaWiFS 1998-20079 km8-dayVGPMxyz MODIS-A 2003-20114 km8-dayVGPMxyz MODIS-A 2002-20124 km8-day CbPM/VGP M hdf
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Work flow Regional Extraction (IDL-SeaDAS Code) Graphics Generation (GMT) Animation (Adobe & QuickTime) Temporal Aggregation Spatial Partitioning (Region or Bathymetry Based) Governing PERL ScriptFortran Based Tools Source Data Ocean Color-base NPP (VGPM, CbPM) Ocean Bathymetry (NGDC)
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NPP (VGPM-MODISA) Example 15 April 2009 NPP (mgC/m 2 /d)
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NPP regional extractions climatology, Interannual Variability & Spatial Variability Regional Extraction: Climatology vs. 2007 Regional Extraction: Spatial Comparison in 2007 Regional Extraction: Interannual Variability
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