www.mdpi.com/journal/remotesensing Article Global Trends in Seasonality of Normalized Difference Vegetation Index (NDVI), 1982–2011
Abstract: A 30-year series of global monthly Normalized Difference Vegetation Index (NDVI) imagery derived from the Global Inventory Modeling and Mapping Studies (GIMMS) NDVI3g archive was analyzed for the presence of trends in changing seasonality. Using the Seasonal Trend Analysis (STA) procedure,...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.690.1025 2023-05-15T18:30:47+02:00 www.mdpi.com/journal/remotesensing Article Global Trends in Seasonality of Normalized Difference Vegetation Index (NDVI), 1982–2011 J. Ronald Eastman Florencia Sangermano Elia A. Machado John Rogan Assaf Anyamba The Pennsylvania State University CiteSeerX Archives 2013 http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.690.1025 http://www.mdpi.com/2072-4292/5/10/4799/pdf/ en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.690.1025 http://www.mdpi.com/2072-4292/5/10/4799/pdf/ Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.mdpi.com/2072-4292/5/10/4799/pdf/ OPEN ACCESS text 2013 ftciteseerx 2016-01-08T18:21:20Z Abstract: A 30-year series of global monthly Normalized Difference Vegetation Index (NDVI) imagery derived from the Global Inventory Modeling and Mapping Studies (GIMMS) NDVI3g archive was analyzed for the presence of trends in changing seasonality. Using the Seasonal Trend Analysis (STA) procedure, over half (56.30%) of land surfaces were found to exhibit significant trends. Almost half (46.10%) of the significant trends belonged to three classes of seasonal trends (or changes). Class 1 consisted of areas that experienced a uniform increase in NDVI throughout the year, and was primarily associated with forested areas, particularly broadleaf forests. Class 2 consisted of areas experiencing an increase in the amplitude of the annual seasonal signal whereby increases in NDVI in the green season were balanced by decreases in the brown season. These areas were found primarily in grassland and shrubland regions. Class 3 was found primarily in the Taiga and Tundra biomes and exhibited increases in the annual summer peak in NDVI. While no single attribution of cause could be determined for each Text taiga Tundra Unknown |
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OPEN ACCESS J. Ronald Eastman Florencia Sangermano Elia A. Machado John Rogan Assaf Anyamba www.mdpi.com/journal/remotesensing Article Global Trends in Seasonality of Normalized Difference Vegetation Index (NDVI), 1982–2011 |
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OPEN ACCESS |
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Abstract: A 30-year series of global monthly Normalized Difference Vegetation Index (NDVI) imagery derived from the Global Inventory Modeling and Mapping Studies (GIMMS) NDVI3g archive was analyzed for the presence of trends in changing seasonality. Using the Seasonal Trend Analysis (STA) procedure, over half (56.30%) of land surfaces were found to exhibit significant trends. Almost half (46.10%) of the significant trends belonged to three classes of seasonal trends (or changes). Class 1 consisted of areas that experienced a uniform increase in NDVI throughout the year, and was primarily associated with forested areas, particularly broadleaf forests. Class 2 consisted of areas experiencing an increase in the amplitude of the annual seasonal signal whereby increases in NDVI in the green season were balanced by decreases in the brown season. These areas were found primarily in grassland and shrubland regions. Class 3 was found primarily in the Taiga and Tundra biomes and exhibited increases in the annual summer peak in NDVI. While no single attribution of cause could be determined for each |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
J. Ronald Eastman Florencia Sangermano Elia A. Machado John Rogan Assaf Anyamba |
author_facet |
J. Ronald Eastman Florencia Sangermano Elia A. Machado John Rogan Assaf Anyamba |
author_sort |
J. Ronald Eastman |
title |
www.mdpi.com/journal/remotesensing Article Global Trends in Seasonality of Normalized Difference Vegetation Index (NDVI), 1982–2011 |
title_short |
www.mdpi.com/journal/remotesensing Article Global Trends in Seasonality of Normalized Difference Vegetation Index (NDVI), 1982–2011 |
title_full |
www.mdpi.com/journal/remotesensing Article Global Trends in Seasonality of Normalized Difference Vegetation Index (NDVI), 1982–2011 |
title_fullStr |
www.mdpi.com/journal/remotesensing Article Global Trends in Seasonality of Normalized Difference Vegetation Index (NDVI), 1982–2011 |
title_full_unstemmed |
www.mdpi.com/journal/remotesensing Article Global Trends in Seasonality of Normalized Difference Vegetation Index (NDVI), 1982–2011 |
title_sort |
www.mdpi.com/journal/remotesensing article global trends in seasonality of normalized difference vegetation index (ndvi), 1982–2011 |
publishDate |
2013 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.690.1025 http://www.mdpi.com/2072-4292/5/10/4799/pdf/ |
genre |
taiga Tundra |
genre_facet |
taiga Tundra |
op_source |
http://www.mdpi.com/2072-4292/5/10/4799/pdf/ |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.690.1025 http://www.mdpi.com/2072-4292/5/10/4799/pdf/ |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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