NDLI: Direct algorithm for mapping land surface FPAR from MODIS apparent reflectance at top of atmosphere

Content Provider	IEEE Xplore Digital Library
Author	Rongyuan Liu Huazhong Ren Suhong Liu Qiang Liu Yuanyuan Wang
Copyright Year	2014
Description	Author affiliation: Coll. of Global Change & Earth Syst. Sci., Beijing Normal Univ., Beijing, China (Qiang Liu) \|\| Nat. Satellite Meteorol. Center, China Meteorol. Adm., Beijing, China (Yuanyuan Wang) \|\| State Key Lab. of Remote Sensing Sci., Beijing Normal Univ., Beijing, China (Rongyuan Liu; Huazhong Ren; Suhong Liu)
Abstract	Fraction of abstracted Photosynthetically Active Radiation (FPAR) is a fundamental terrestrial state variable in most ecosystem productivity models and is also one of the key terrestrial products. This paper proposed a new Direct-Algorithm to retrieve FPAR from apparent reflectance of MODIS's seven bands in the visible, near-infrared and short-wave wavelengths. The Direct-Algorithm developed from the dataset simulated by radiative transfer models of canopy and atmosphere with different canopy structures and atmosphere conditions, estimated direct FPAR $(FPAR_{dir}),$ and scattering FPAR $(FPAR_{sct}),$ and total FPAR of the canopy $(FPAR_{tot})$ by using linear equations of TOA reflectance. Result showed that the estimated FPAR product were close to that of MODIS products except the forest, perhaps because the homogenous canopy of the SAIL model is not suitable for the forest canopy.
Sponsorship	IEEE Geosci. Remote Sens. Soc.
Starting Page	3041
Ending Page	3044
File Size	403193
Page Count	4
File Format	PDF
ISBN	9781479957750
DOI	10.1109/IGARSS.2014.6947118
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-07-13
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Reflectivity MODIS Atmospheric modeling Remote sensing Vegetation mapping Mathematical model Atmospheric waves TOA apparent reflectance FPAR direct algorithm
Content Type	Text
Resource Type	Article

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