Skip to main content

Smoke effects on NDVI determination of savannah vegetation types

Buy Article:

$63.00 plus tax (Refund Policy)

Abstract:

Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) data collected on 25 and 27 August and 1 September 1995, in central Brazil, were used to describe smoke effects on Normalized Difference Vegetation Index (NDVI) determination of savannah vegetation types. Image-derived empirical relationships were used to predict the response of the red band (sensitive to smoke) from the shortwave infrared (SWIR) bands (insensitive to smoke), so as to minimize smoke effects on NDVI. Results showed that smoke effects were target dependent and produced NDVI differences up to 0.35 between the three dates for dense vegetation covers such as savannah woodland and riparian forest. Although this approach did not consider the smoke influence on the near-infrared (NIR) interval, the small SWIR-derived NDVI differences observed between the dates for a given land cover, under distinct smoke conditions, indicated its applicability in the Brazilian cerrado.

Document Type: Research Article

DOI: https://doi.org/10.1080/0143116031000152318

Affiliations: Instituto Nacional de Pesquisas Espaciais--INPE Caixa Postal 515 12245-970 São José dos Campos, SP Brazil

Publication date: 2003-11-01

More about this publication?
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more