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Temporally smoothed and gap-filled MODIS Land Products for Carbon Modeling: Application of the FPAR Product

Joanne Michelle Nightingale, NASA GSFC, joanne.m.nightingale@nasa.gov (Presenting)
Jeffrey Morisette, NASA GSFC, jeff.morisette@nasa.gov
Robert Wolfe, NASA GSFC, robert.wolfe@nasa.gov
Bin Tan, ERT, tanbin.ert@gmail.com
Feng Gao, ERT, fgao@ltpmail.gsfc.nasa.gov
Greg Ederer, SSAI, gregory.a.ederer@nasa.gov
Jim Collatz, NASA GSFC, jim.collatz@nasa.gov
Dave Turner, Oregon State University, david.turner@oregonstate.edu

A temporally and spatially Gap-Filled and Smoothed (GFS) version of the MODIS (Moderate Resolution Imaging Spectro-radiometer) fPAR (fraction of absorbed photosynthetically active radiation) product is now available. We apply this new fPAR product to two commonly used carbon and vegetation productivity models, CASA (Carnegie-Ames-Stanford Approach) and the MOD17 GPP (Gross Primary Production) algorithm. The GFS product removes noise present within the original MOD15 fPAR dataset and provides a more realistic fPAR time-series in relation to magnitude and seasonality associated with radiation in regions where persistent cloud cover is an issue. Datasets are available for North America and the northern part of South America covering the Amazon basin for the MODIS acquisition period (2000 - 2005) at (http:www.accweb.nascom.nasa.gov).


NASA Carbon Cycle & Ecosystems Active Awards Represented by this Poster:

  • Award: 547714.04.11.16.00
    Start Date: 2006-01-01
     

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