Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· References in the article
· Citations to the Article (9) (Citation History)
· Refereed Citations to the Article
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Greening of arctic Alaska, 1981-2001
Authors:
Jia, Gensuo J.; Epstein, Howard E.; Walker, Donald A.
Publication:
Geophysical Research Letters, Volume 30, Issue 20, pp. HLS 3-1, CiteID 2067, DOI 10.1029/2003GL018268 (GeoRL Homepage)
Publication Date:
10/2003
Origin:
AGU
AGU Keywords:
Meteorology and Atmospheric Dynamics: Land/atmosphere interactions, Information Related to Geographic Region: Arctic region, Global Change: Remote sensing
DOI:
10.1029/2003GL018268
Bibliographic Code:
2003GeoRL..30tHLS3J

Abstract

Here we analyzed a time series of 21-yr satellite data for three bioclimate subzones in northern Alaska and confirmed a long-term trend of increase in vegetation greenness for the Alaskan tundra that has been detected globally for the northern latitudes. There was a 16.9% (+/-5.6%) increase in peak vegetation greenness across the region that corresponded to simultaneous increases in temperatures. We also examined the changes for four specific vegetation types using an 11-yr finer resolution (1-km) satellite data and found that the temporal changes in peak and time-integrated greenness were greatest in areas of moist nonacidic tundra. These changes in greenness between 1981 and 2001 correspond approximately to a 171 g/m2 (+/-81 g/m2) increases in aboveground plant biomass for Alaskan tundra. This remotely sensed interpretation is conducted in the absence of long-term biomass records in the region.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints