Difference between revisions of "NPP Products"
(New page: == NPP Product Family Description == <p>The ocean color products available here were made using Level 3, 8 day, binned imagery from SeaWiFS and MODIS-Aqua. There are two principal product...) |
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<p>The NPP grids are 2160x4320, SMI-like format. Files are stored in HDF format, gzipped.</p> | <p>The NPP grids are 2160x4320, SMI-like format. Files are stored in HDF format, gzipped.</p> | ||
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| − | <p>For Seawifs-based VGPM NPP calculations, SeaWiFS chlor_a and AVHRR sst products are used to compute NPP. </p> | + | <p>For Seawifs-based VGPM NPP calculations, SeaWiFS chlor_a, PAR, and AVHRR sst products are used to compute NPP. </p> |
<p>The file naming convention is: <br> | <p>The file naming convention is: <br> | ||
<i>vgpm.YYYYddd.hdf.gz</i> where ''ddd'' is the start of the 8 day interval. </p> | <i>vgpm.YYYYddd.hdf.gz</i> where ''ddd'' is the start of the 8 day interval. </p> | ||
<br> | <br> | ||
| − | <p>For Aqua-based VGPM NPP calculations, MODIS (Aqua) chlor_a and | + | <p>For Aqua-based VGPM NPP calculations, MODIS (Aqua) chlor_a, PAR, and SST4 are used.</p> |
<p>The file naming convention is: <br> | <p>The file naming convention is: <br> | ||
<i>vgpm.YYYYddd.hdf.gz</i> where ''ddd'' is the start of the 8 day interval. </p> | <i>vgpm.YYYYddd.hdf.gz</i> where ''ddd'' is the start of the 8 day interval. </p> | ||
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<br> | <br> | ||
<p>These files also are collected by year into tar archives, with the file name convention:<br> | <p>These files also are collected by year into tar archives, with the file name convention:<br> | ||
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<i>cbpm.YYYYddd.hdf.gz</i> where ''ddd'' is the start of the 8 day interval. </p> | <i>cbpm.YYYYddd.hdf.gz</i> where ''ddd'' is the start of the 8 day interval. </p> | ||
<br> | <br> | ||
| − | <p>Both SeaWiFS and Aqua-based CbPM computations use FNMOC MLD ( http://www.science.oregonstate.edu/ocean.productivity/mld | + | <p>Both SeaWiFS and Aqua-based CbPM computations use FNMOC MLD ( http://www.science.oregonstate.edu/ocean.productivity/mld.html) </p> |
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<br> | <br> | ||
<p>These files also are collected by year into tar archives, with the file name convention:<br> | <p>These files also are collected by year into tar archives, with the file name convention:<br> | ||
<i>yearlyTarWads/cbpm.[m|s].YYYY.tar</i> where "m" indicates MODIS Aqua based NPP and "s" indicates SeaWiFS based NPP.</p> | <i>yearlyTarWads/cbpm.[m|s].YYYY.tar</i> where "m" indicates MODIS Aqua based NPP and "s" indicates SeaWiFS based NPP.</p> | ||
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== Data (links to FTP site) == | == Data (links to FTP site) == | ||
Revision as of 13:42, 18 October 2010
NPP Product Family Description
The ocean color products available here were made using Level 3, 8 day, binned imagery from SeaWiFS and MODIS-Aqua. There are two principal products: results from the Vertically Generalized Productivity Model (VGPM) and the Carbon-based Productivity Model (CbPM).
VGPM:
Full description of the VGPM model can be found here:
http://www.science.oregonstate.edu/ocean.productivity/vgpm.model.php
The NPP grids are 2160x4320, SMI-like format. Files are stored in HDF format, gzipped.
For Seawifs-based VGPM NPP calculations, SeaWiFS chlor_a, PAR, and AVHRR sst products are used to compute NPP.
The file naming convention is:
vgpm.YYYYddd.hdf.gz where ddd is the start of the 8 day interval.
For Aqua-based VGPM NPP calculations, MODIS (Aqua) chlor_a, PAR, and SST4 are used.
The file naming convention is:
vgpm.YYYYddd.hdf.gz where ddd is the start of the 8 day interval.
These files also are collected by year into tar archives, with the file name convention:
yearlyTarWads/vgpm.[m|s].YYYY.tar
CbPM:
Full description of the CbPM model can be found here:
http://www.science.oregonstate.edu/ocean.productivity/carbon2.model.php
The NPP grids are 2160x4320, SMI-like format. Files are stored in HDF format, gzipped.
For Seawifs-based CbPM NPP calculations, SeaWiFS GSM chlorophyll and bbp products are used to compute NPP.
The file naming convention is:
cbpm.YYYYddd.hdf.gz where ddd is the start of the 8 day interval.
For Aqua-based VGPM NPP calculations, MODIS (Aqua) GSM chlorophyll and bbp products are used.
The file naming convention is:
cbpm.YYYYddd.hdf.gz where ddd is the start of the 8 day interval.
Both SeaWiFS and Aqua-based CbPM computations use FNMOC MLD ( http://www.science.oregonstate.edu/ocean.productivity/mld.html)
These files also are collected by year into tar archives, with the file name convention:
yearlyTarWads/cbpm.[m|s].YYYY.tar where "m" indicates MODIS Aqua based NPP and "s" indicates SeaWiFS based NPP.
Data (links to FTP site)
Metadata
