Convergence of dynamic vegetation net productivity responses to precipitation variability from 10 years of MODIS EVI

Ponce, G; Moran, S; Huete, A; Bresloff, C; Huxman, T; Bosch, D; Bradford, J; Buda, A; Gunter, S; McNab, H; McClaran, M; Peters, D; Sadler, J; Seyfried, M; Starks, P; Sutherland Montoya, D; Heartsill, T

Convergence of dynamic vegetation net productivity responses to precipitation variability from 10 years of MODIS EVI

Ponce, G Moran, S Huete, A

Bresloff, C Huxman, T Bosch, D Bradford, J Buda, A Gunter, S McNab, H McClaran, M Peters, D Sadler, J Seyfried, M Starks, P Sutherland Montoya, D Heartsill, T

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Publication Type:: Conference Proceeding
Citation:: 34th International Symposium on Remote Sensing of Environment - The GEOSS Era: Towards Operational Environmental Monitoring, 2011
Issue Date:: 2011-12-01

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Field	Value	Language
dc.contributor.author	Ponce, G	en_US
dc.contributor.author	Moran, S	en_US
dc.contributor.author	Huete, A https://orcid.org/0000-0003-2809-2376	en_US
dc.contributor.author	Bresloff, C	en_US
dc.contributor.author	Huxman, T	en_US
dc.contributor.author	Bosch, D	en_US
dc.contributor.author	Bradford, J	en_US
dc.contributor.author	Buda, A	en_US
dc.contributor.author	Gunter, S	en_US
dc.contributor.author	McNab, H	en_US
dc.contributor.author	McClaran, M	en_US
dc.contributor.author	Peters, D	en_US
dc.contributor.author	Sadler, J	en_US
dc.contributor.author	Seyfried, M	en_US
dc.contributor.author	Starks, P	en_US
dc.contributor.author	Sutherland Montoya, D	en_US
dc.contributor.author	Heartsill, T	en_US
dc.date.issued	2011-12-01	en_US
dc.identifier.citation	34th International Symposium on Remote Sensing of Environment - The GEOSS Era: Towards Operational Environmental Monitoring, 2011	en_US
dc.identifier.uri	http://hdl.handle.net/10453/119662
dc.description.abstract	According to Global Climate Models (GCMs) the occurrence of extreme events of precipitation will be more frequent in the future. Therefore, important challenges arise regarding climate variability, which are mainly related to the understanding of ecosystem responses to changes in precipitation patterns. Previous studies have found that Above-ground Net Primary Productivity (ANPP) was positively related to increases in annual precipitation and this relation may converge across biomes during dry years. One challenge in studying this ecosystem response at the continental scale is the lack of ANPP field measurements over extended areas. In this study, the MODIS EVI was utilized as a surrogate for ANPP and combined with precipitation datasets from twelve different experimental sites across the United States over a 10-year period. Results from this analysis confirmed that integrated-EVI for different biomes converged toward common precipitation use efficiency during water-limited periods and may be a viable surrogate for ANPP measurements for further ecological research.	en_US
dc.relation.ispartof	34th International Symposium on Remote Sensing of Environment - The GEOSS Era: Towards Operational Environmental Monitoring	en_US
dc.title	Convergence of dynamic vegetation net productivity responses to precipitation variability from 10 years of MODIS EVI	en_US
dc.type	Conference Proceeding
utslib.for	0501 Ecological Applications	en_US
utslib.for	050206 Environmental Monitoring	en_US
utslib.for	090905 Photogrammetry and Remote Sensing	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Life Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CAMGIS - Centre for Advanced Modelling and Geospatial lnformation Systems
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US

Abstract:

According to Global Climate Models (GCMs) the occurrence of extreme events of precipitation will be more frequent in the future. Therefore, important challenges arise regarding climate variability, which are mainly related to the understanding of ecosystem responses to changes in precipitation patterns. Previous studies have found that Above-ground Net Primary Productivity (ANPP) was positively related to increases in annual precipitation and this relation may converge across biomes during dry years. One challenge in studying this ecosystem response at the continental scale is the lack of ANPP field measurements over extended areas. In this study, the MODIS EVI was utilized as a surrogate for ANPP and combined with precipitation datasets from twelve different experimental sites across the United States over a 10-year period. Results from this analysis confirmed that integrated-EVI for different biomes converged toward common precipitation use efficiency during water-limited periods and may be a viable surrogate for ANPP measurements for further ecological research.

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http://hdl.handle.net/10453/119662