Global-scale analysis of vegetation indices for moderate resolution monitoring of terrestrial vegetation

Alfredo Huete, Kamel Didan, Willem van Leeuwen, Eric Vermote

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

Vegetation indices have emerged as important tools in the seasonal and inter-annual monitoring of the Earth's vegetation. They are radiometric measures of the amount and condition of vegetation. In this study, the Sea-viewing Wide Field-of-View sensor (SeaWiFS) is used to investigate coarse resolution monitoring of vegetation with multiple indices. A 30-day series of SeaWiFS data, corrected for molecular scattering and absorption, was composited to cloud-free, single channel reflectance images. The normalized difference vegetation index (NDVI) and an optimized index, the enhanced vegetation index (EVI), were computed over various `continental' regions. The EVI had a normal distribution of values over the continental set of biomes while the NDVI was skewed toward higher values and saturated over forested regions. The NDVI resembled the skewed distributions found in the red band while the EVI resembled the normal distributions found in the NIR band. The EVI minimized smoke contamination over extensive portions of the tropics. As a result, major biome types within continental regions were discriminable in both the EVI imagery and histograms, whereas smoke and saturation considerably degraded the NDVI histogram structure preventing reliable discrimination of biome types.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages141-151
Number of pages11
Volume3868
StatePublished - 1999
EventProceedings of the 1999 Remote Sensing for Earth Science, Ocean, and Sea Ice Applications - Florence, Italy
Duration: Sep 20 1999Sep 24 1999

Other

OtherProceedings of the 1999 Remote Sensing for Earth Science, Ocean, and Sea Ice Applications
CityFlorence, Italy
Period9/20/999/24/99

Fingerprint

vegetation
Monitoring
normalized difference vegetation index
Sea-viewing Wide Field-of-view Sensor
smoke
normal density functions
histograms
Normal distribution
Smoke
tropical regions
imagery
Tropics
discrimination
contamination
Sensors
saturation
reflectance
Contamination
Earth (planet)
scattering

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Huete, A., Didan, K., van Leeuwen, W., & Vermote, E. (1999). Global-scale analysis of vegetation indices for moderate resolution monitoring of terrestrial vegetation. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3868, pp. 141-151). Society of Photo-Optical Instrumentation Engineers.

Global-scale analysis of vegetation indices for moderate resolution monitoring of terrestrial vegetation. / Huete, Alfredo; Didan, Kamel; van Leeuwen, Willem; Vermote, Eric.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3868 Society of Photo-Optical Instrumentation Engineers, 1999. p. 141-151.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Huete, A, Didan, K, van Leeuwen, W & Vermote, E 1999, Global-scale analysis of vegetation indices for moderate resolution monitoring of terrestrial vegetation. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 3868, Society of Photo-Optical Instrumentation Engineers, pp. 141-151, Proceedings of the 1999 Remote Sensing for Earth Science, Ocean, and Sea Ice Applications, Florence, Italy, 9/20/99.
Huete A, Didan K, van Leeuwen W, Vermote E. Global-scale analysis of vegetation indices for moderate resolution monitoring of terrestrial vegetation. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3868. Society of Photo-Optical Instrumentation Engineers. 1999. p. 141-151
Huete, Alfredo ; Didan, Kamel ; van Leeuwen, Willem ; Vermote, Eric. / Global-scale analysis of vegetation indices for moderate resolution monitoring of terrestrial vegetation. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3868 Society of Photo-Optical Instrumentation Engineers, 1999. pp. 141-151
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