High-Resolution Daily U.S. Surface Weather

Daily total precipitation and daily maximum temperature are animated over a one-year subset (1997) of the 18-year Daymet U.S. Database of high-resolution gridded daily surface weather parameters.Daymet U.S. Database These animations show a one-year subset (1997) of the 18-year Daymet U.S. Database of high-resolution gridded daily surface weather parameters. The complete Daymet US Database, including references to methods, is available on-line at http://daymet.ornl.gov/. The database is based on daily surface weather observations from the National Weather Service Cooperative Station Network and the Natural Resources Conservation Service SNOTEL network of upper-elevation stations. These observations are interpolated to a grid with 1 km horizontal spacing, and extrapolated to account for topographic effects on surface weather. The complete database includes daily temperatures (max and min), daily total precipitation, daily shortwave radiation, and daily average absolute humidity, for the period 1980-1997. Numerous climatological summaries, both annual and monthly, are available at the Daymet website. The website also includes a map interface tool that allows a user to select a single point from the 1 km grid, and receive all of the daily data for all variables for that point. The subset of data shown in these animations helps to illustrate the unique spatial and temporal characteristics of the Daymet US Database.