Spatial-temporal trend of seasonally-integrated normalized difference vegetation index as an indicator of changes in Arctic tundra vegetation in the early 1990s

Author

Stow, Douglas ; Daeschner, Scott ; Hope, Allen ; Douglas, David ; Myneni, Ranga ; Zhou, Liming

Author_Institution

Dept. of Geogr., San Diego State Univ., CA, USA

Volume

1

fYear

2001

fDate

2001

Firstpage

181

Abstract

A cross-calibration procedure for reducing stratospheric aerosol effects was tested on an AVHRR LAC NDVI data set for the North Slope of Alaska in the early 1990s. Corrections based on atmospherically corrected GAC data increased NDVI values by as much as 0.05 and seasonally integrated NDVI by 0.3. Even after correction, NDVI values are lower for at least three years following the eruption of Mt. Pinatubo, suggesting a reduction in Arctic tundra productivity

Keywords

aerosols; remote sensing; stratosphere; AVHRR LAC NDVI data set; Alaska; Arctic tundra productivity; Arctic tundra vegetation; Mt. Pinatubo; North Slope; atmospherically corrected GAC data; cross-calibration procedure; eruption; global area coverage; seasonally-integrated normalized difference vegetation index; spatial-temporal trend; stratospheric aerosol effects; Aerosols; Arctic; Biomedical optical imaging; Geography; Geology; Los Angeles Council; Productivity; Spatial resolution; Testing; Vegetation mapping;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International

Conference_Location

Sydney, NSW

Print_ISBN

0-7803-7031-7

Type

conf

DOI

10.1109/IGARSS.2001.976095

Filename

976095