Gulf of Mexico Primary Productivity Estimates of NPP based on NASA Satellite data.

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Presentation transcript:

Gulf of Mexico Primary Productivity Estimates of NPP based on NASA Satellite data

NPP estimates are obtained from as referenced by NASA Ocean Color Web Estimates available include SeaWiFS and MODIS-Aqua based estimates Products Available Sensor Date Range Spatial Resolution Temporal Resolution ModelFormat SeaWiFS Oct km 8-day and Monthly VGPM, VGPM-e, CbPM hdf or xyz MODIS-A July Nov and 9 km 8-day and Monthly VGPM, VGPM-e, CbPM hdf or xyz

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 km8-dayVGPMxyz MODIS-A km8-dayVGPMxyz MODIS-A km8-day CbPM/VGP M hdf

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)

NPP (VGPM-MODISA) Example 15 April 2009 NPP (mgC/m 2 /d)

NPP regional extractions climatology, Interannual Variability & Spatial Variability Regional Extraction: Climatology vs Regional Extraction: Spatial Comparison in 2007 Regional Extraction: Interannual Variability