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Standardized Precipitation Evaporation Index for the Upper Green River Basin (1896-2017)

Dates

Publication Date
Start Date
1896-09-30
End Date
2017-09-30

Citation

Assal, T.J., 2018, Standardized Precipitation Evaporation Index for the Upper Green River Basin (1896-2017): U.S. Geological Survey data release, https://doi.org/10.5066/P9VLM7Z6.

Summary

The standardized precipitation evapotranspiration index (SPEI) was summarized for the Upper Green River Basin to quantify climate variability over the last century. The SPEI incorporates both precipitation and temperature data, therefore the index has the capacity to include the effects of temperature variability on drought. The SPEI considers the difference between precipitation and potential evapotranspiration to calculate a climatic water balance at a given time scale (Vicente-Serrano et al. 2010). The number of standard deviations the climatic water balance deviates from the long-term mean for a given time period represents the SPEI for the time period. Here, I calculated the SPEI for each water year (Oct–Sept) between 1896 and [...]

Contacts

Point of Contact :
Timothy J Assal
Process Contact :
Timothy J Assal
Originator :
Timothy J Assal
Metadata Contact :
Timothy J Assal
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Fort Collins Science Center
USGS Mission Area :
Ecosystems

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SPEI1896-2017_HydroYear.jpg.xml
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Purpose

The data were produced as an approach to quantify the effects of temperature and the frequency and intensity of wet and dry patterns across the study area and to specifically place the 2012 drought in a historical perspective.
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Communities

  • Fort Collins Science Center (FORT)
  • USGS Data Release Products

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Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9VLM7Z6

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