NDLI: Vegetation condition indices for crop vegetation condition monitoring

Content Provider	IEEE Xplore Digital Library
Author	Zhengwei Yang Liping Di Genong Yu Zeqiang Chen
Copyright Year	2011
Description	Author affiliation: Center for Spatial Information Science and Systems, (CSISS), George Mason University, 4400 University Drive, MSN 6E1, Fairfax, VA 22030, USA (Liping Di; Genong Yu; Zeqiang Chen) \|\| Spatial Analysis Research Section, USDA, National Agriculture Statistics Service, 3251 Old Lee Highway, Room 305, Fairfax, VA 22030, USA (Zhengwei Yang)
Abstract	NDVI maps have been proven valuable in providing a spatially complete view of crop's vegetation condition, which manifests disastrous events such as massive flood and drought. It is virtually impossible to obtain from ground survey data. This paper uses NASA MODIS 250m resolution, daily surface reflectance data for crop condition monitoring. The NDVI provides an absolute metrics for vegetation condition. However, a relative measurement of the current vegetation condition against a reference vegetation condition is critical for understanding, interpreting and quantifying the current vegetation condition. In this paper, a new NDVI based vegetation condition index is presented to measure the vegetation condition with respect to the “normal condition”, which is characterized by historical average. The proposed new vegetation condition index is empirically compared with several other vegetation indices to evaluate its effectiveness. Its advantages and utility for crop vegetation condition measurement are evidenced by the preliminary results.
Starting Page	3534
Ending Page	3537
File Size	908408
Page Count	4
File Format	PDF
ISBN	9781457710032
ISSN	21537003
e-ISBN	9781457710056
DOI	10.1109/IGARSS.2011.6049984
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-24
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Vegetation mapping Indexes Agriculture Time series analysis MODIS Current measurement Condition monitoring crop condition Monitoring vegetation condition index NDVI
Content Type	Text
Resource Type	Article

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