Mean of the Top Ten Percent of NDVI Values in the Yuma Proving Ground during Monsoon Season, 1986-2011

Publication Date

2016-08-03

Start Date

1986-01-01

End Date

2014-01-01

Birtwistle, A.N., Laituri, M.J, Bledsoe, B.P, and Friedman, J.M., 2016, Mean of the Top Ten Percent of NDVI Values in the Yuma Proving Ground during Monsoon Season, 1986-2011: U.S. Geological Survey data release, https://doi.org/10.5066/F7ZK5DSB.

Type: Related Primary Publication Type: Download

Measuring precipitation in semi-arid landscapes is important for understanding processes related to rainfall and run-off; however, rain-gauges are sparsely distributed. Research comparing rain-gauge and RADAR precipitation estimates reveal that RADAR data are often misleading, especially for monsoon season convective storms. This study investigates an alternative way to map the spatial and temporal variation of precipitation inputs along ephemeral stream channels using Normalized Difference Vegetation Index (NDVI) derived from Landsat Thematic Mapper imagery. NDVI values from 26 years of pre- and post-monsoon season Landsat imagery were derived across Yuma Proving Ground (YPG) in southwestern Arizona, USA.

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