Frequency analysis of natural vegetation distribution using NDVI/AVHRR data from 1981 to 2000 for North America: correlations with SOI

$61.74 plus tax (Refund Policy)

Buy Article:

Abstract:

We develop new methods to study and monitor changes in the distribution of vegetation in North America. The Normalized Difference Vegetation Index (NDVI), which is a level 3 data product from channel 1 and 2 of NOAA/AVHRR Pathfinder, is used for the study. Frequency analysis for uniformly divided NDVI ranges is used to study interannual trends in vegetation distribution. The study is done for each region specified by vegetation type and some geological considerations, and covers the entire area of North America. The period of the study covers 1981 to 2000. Correlation coefficients are found for different vegetation greenness levels and Southern Oscillation Indices (SOIs). Correlations between vegetation distribution and climatic phenomena such as ENSO occurrences are suggested. Long-term increase in vegetation greenness on decadal time scales for some regions in North America is suggested. The work is of significance to interannual variability of natural vegetation and its connection to known physical phenomena such as ENSO and droughts.

Document Type: Research Article

DOI: http://dx.doi.org/10.1080/01431160110110956

Publication date: September 10, 2002

More about this publication?
Related content

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect 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