Daymet: Daily Surface Weather Data and Climatological SummariesEntry ID: DAYMET
Abstract: The data distributed through this web site are generated from the Daymet model and have broad applications over a wide variety of scientific and research fields including hydrology, terrestrial vegetation growth models, carbon cycle science, and regional to large scale climate change analysis. Developed by Dr. Peter E Thornton to fulfill the need for daily climatological data necessary for plant ... growth model inputs, Daymet generates daily, gridded surfaces of temperature, precipitation, humidity, and radiation over large regions and takes into account areas of complex terrain.
Daymet data has been updated for 1980-2008 and expanded to include the United States, Mexico, and Canada (south of 52 degrees North) as station density allows. Data can be downloaded for a single 1-km x 1-km pixel as a text file of daily data for all Daymet variables, or as a gridded tile of daily data for each Daymet variable. Annual climatological summaries are also available for some Daymet variables.
This version of Daymet has been supported by NASA through the Modeling and Synthesis Thematic Data Center, a unit of the North American Carbon Program. The ground-based meteorological station data required for running Daymet have been acquired through the National Climatic Data Center, the National Resource Conservation Service, and additional datasets obtained through the generosity of the Mexican and Canadian Governments.
Data Set Citation
Dataset Originator/Creator: Thornton, PE, MM Thornton, BW Mayer, N Wilhelmi, Y Wei, RB Cook
Dataset Title: Daymet: Daily Surface Weather and Climatological Summaries
Dataset Release Date: 2012
Dataset Release Place: Oak Ridge, Tennessee, U.S.A.
Dataset Publisher: ORNLOnline Resource: http://daymet.ornl.gov/
Start Date: 1980-01-01Stop Date: 1997-12-31
Latitude Resolution: 1 km
Longitude Resolution: 1 km
Horizontal Resolution Range: 1 km - < 10 km or approximately .01 degree - < .09 degree
Temporal Resolution: Daily
Temporal Resolution Range: Daily - < Weekly
ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > AIR TEMPERATURE
ATMOSPHERE > ATMOSPHERIC TEMPERATURE > ATMOSPHERIC TEMPERATURE INDICES > COOLING DEGREE DAYS
ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > MAXIMUM/MINIMUM TEMPERATURE
ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE
ATMOSPHERE > ATMOSPHERIC WATER VAPOR > HUMIDITY
ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR
ATMOSPHERE > PRECIPITATION > PRECIPITATION AMOUNT
ATMOSPHERE > ATMOSPHERIC RADIATION > INCOMING SOLAR RADIATION
ATMOSPHERE > ATMOSPHERIC RADIATION > SHORTWAVE RADIATION
ATMOSPHERE > ATMOSPHERIC RADIATION > SOLAR RADIATION
LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION
ISO Topic Category
Data Set Progress
Distribution Media: online
Phone: (303) 497-1727
Email: peter at ntsg.umt.edu
Email: thornton at ucar.edu
The National Center for Atmospheric Research Climate and Global Dynamics Division 1850 Table Mesa Dr.
Province or State: CO
Postal Code: 80307
Thornton, P.E., H. Hasenauer, and M.A. White. 2000. Simultaneous estimation of daily solar radiation and humidity from observed temperature and precipitation: An application over complex terrain in Austria. Agricultural and Forest
Thornton, P.E. and S.W. Running. 1999. An improved algorithm for estimating
incident daily solar radiation from measurementsof temperature, humidity, and precipitation. Agriculture and Forest Meteorology. 93:211-228.
Kimball, J., S.W. Running, and R. Nemani. 1997. An improved method for
estimating surface humidity from daily minimum temperature. Agricultural and Forest Meteorology 85: 87-98.
Thornton, P.E., S.W. Running, and M.A. White. 1997. Generating surfaces of
daily meteorology variables over large regions of complex terrain. Journal of Hydrology 190:214-251.
Glassy, J. and S.W.Running. 1994. Validating diurnal climatology logic of the MT-CLIM logic across a climatic gradient of Oregon. Ecological Applications 4:
Hungerford, R.D., R.R. Nemani, S.W. Running, and J.C. Coughlan. 1989. MTCLIM: a mountain microclimate simulation model. US For. Serv. Res. Pap. INT-414.
Running, S.W., R.R. Nemani, R.D. and Hungerford. 1987. Extrapolation of
synoptic meteorological data in mountainous terrain and its use for simulating forest evapotranspiration and photosynthesis. Can. J. For. Res., 17:472-483.
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2006-09-14
Last DIF Revision Date: 2012-06-07