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30 year (1981 - 2010) annual average number of occurrences of dry and wet events for the Conterminous United States and District of Columbia

Dates

Publication Date
Start Date
1981-01-01
End Date
2010-12-31

Citation

Wieczorek, M.E., and Sabitov, T.Y., 2019, 30 year (1981 - 2010) annual average number of occurrences of dry and wet events for the Conterminous United States and District of Columbia: U.S. Geological Survey data release, https://doi.org/10.5066/P9XIXKAG.

Summary

This metadata record describes the annual average number of occurrences of dry and wet events during the 30-year period 1981 – 2010 for the conterminous United States. A wet event is defined as a period when the number of consecutive days with precipitation equals or exceeds 1 millimeter. A dry event is defined as a period when the number of consecutive days with precipitation equals 0 millimeters. The source data was produced and acquired from DAYMET (2018) and is presented here as a 1-kilometer resolution GeoTIFF file.

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Attached Files

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Res_eventDry.zip 7.49 MB
Res_eventWet.zip 7.85 MB
res_eventWet.jpg thumbnail 1,005.32 KB
res_eventDry.jpg thumbnail 958.03 KB
CDD_CWD_Events_Final.xml
Original FGDC Metadata

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29.55 KB

Purpose

This data set was created by the U.S. Geological Survey's (USGS) Hydrologic Systems Team which is part of the USGS National Water Quality Program (NWQP). The spatial variability of the number of occurrences of consecutive dry (CDD) and consecutive wet (CWD) days is an important component with respect to water resources and hydrologic studies. The duration and frequency of precipitation can affect river flow, evapotranspiration, soil moisture, and groundwater recharge (Huntington, 2006). This effort was undertaken to estimate the 30 year (1981 - 2010) annual average number of occurrences of consecutive dry and wet days to support statistical analysis, map display, and model parameterization.
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Communities

  • USGS Data Release Products
  • USGS Maryland, Delaware, and the District of Columbia Water Science Center

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Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9XIXKAG

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