Use of vegetation indices in forested regions: Issues of linearity and saturation

Alfredo R. Huete, HuiQing Liu, Willem van Leeuwen

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

48 Citations (Scopus)

Abstract

Numerous problems and difficulties have been reported with the use of vegetation indices in high biomass, forested regions. In this study we analyzed Landsat-5 Thematic Mapper (TM) scenes from various temperate and tropical forested biomes, representing needleleaf and broadleaf canopy structures in the Pacific Northwest (Oregon), Eastern U.S. (Harvard Forest), southern Chile, the Amazon, and Central America. The TM scenes were atmospherically corrected and reduced to MODIS surface reflectance data at 250 m pixel sizes. Various vegetation indices (VIs) were then computed including the normalized difference vegetation index (NDVI), simple ratio, soil-adjusted vegetation index (SAVI), enhanced vegetation index (EVI), and green vegetation index (GVI). The NDVI was also tested utilizing the green and middle-infrared (MIR) bands. All of the NDVIs were non-linear and were fairly saturated across the forested biomes. In contrast, the remaining indices remained sensitive to canopy structure variations over all of the forested biomes with minimal saturation problems. The high `penetrating' capability of the near:infrared band through forested canopies was the dominant factor in vegetation index sensitivity and performance. We found that indices with higher weighing coefficients in the `near-infrared' to be the best approach in extending vegetation index performance over forested and dense vegetated canopies.

Original languageEnglish (US)
Title of host publicationInternational Geoscience and Remote Sensing Symposium (IGARSS)
Editors Anon
PublisherIEEE
Pages1966-1968
Number of pages3
Volume4
StatePublished - 1997
EventProceedings of the 1997 IEEE International Geoscience and Remote Sensing Symposium, IGARSS'97. Part 3 (of 4) - Singapore, Singapore
Duration: Aug 3 1997Aug 8 1997

Other

OtherProceedings of the 1997 IEEE International Geoscience and Remote Sensing Symposium, IGARSS'97. Part 3 (of 4)
CitySingapore, Singapore
Period8/3/978/8/97

Fingerprint

vegetation index
linearity
saturation
biome
canopy
NDVI
near infrared
Infrared radiation
surface reflectance
MODIS
Landsat
Weighing
pixel
Biomass
Pixels
biomass
Soils
soil

ASJC Scopus subject areas

  • Software
  • Geology

Cite this

Huete, A. R., Liu, H., & van Leeuwen, W. (1997). Use of vegetation indices in forested regions: Issues of linearity and saturation. In Anon (Ed.), International Geoscience and Remote Sensing Symposium (IGARSS) (Vol. 4, pp. 1966-1968). IEEE.

Use of vegetation indices in forested regions : Issues of linearity and saturation. / Huete, Alfredo R.; Liu, HuiQing; van Leeuwen, Willem.

International Geoscience and Remote Sensing Symposium (IGARSS). ed. / Anon. Vol. 4 IEEE, 1997. p. 1966-1968.

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

Huete, AR, Liu, H & van Leeuwen, W 1997, Use of vegetation indices in forested regions: Issues of linearity and saturation. in Anon (ed.), International Geoscience and Remote Sensing Symposium (IGARSS). vol. 4, IEEE, pp. 1966-1968, Proceedings of the 1997 IEEE International Geoscience and Remote Sensing Symposium, IGARSS'97. Part 3 (of 4), Singapore, Singapore, 8/3/97.
Huete AR, Liu H, van Leeuwen W. Use of vegetation indices in forested regions: Issues of linearity and saturation. In Anon, editor, International Geoscience and Remote Sensing Symposium (IGARSS). Vol. 4. IEEE. 1997. p. 1966-1968
Huete, Alfredo R. ; Liu, HuiQing ; van Leeuwen, Willem. / Use of vegetation indices in forested regions : Issues of linearity and saturation. International Geoscience and Remote Sensing Symposium (IGARSS). editor / Anon. Vol. 4 IEEE, 1997. pp. 1966-1968
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