TerraClimate

Overview
Extent
    Global
Spatial Resolution
    4km
Data Source(s)
    ClimatologyLab.org
Science Partner

Description

TerraClimate is a climate and climate water balance dataset for terrestrial surfaces and is based on a climatically aided interpolation model using WorldClim, CRU, Ts4.0, and JRA55 datasets. This 60+ year dataset provides primary and derived climate variables which can be used for ecological and hydrological studies requiring relatively high spatial resolution.

 

Minimum Temperature: Monthly average minimum temperature

Maximum Temperature: Monthly average maximum temperature

Precipitation: Monthly total precipitation (depth)

Grass reference evapotranspiration (ETo): Penman-Monteith reference ET based on a grass reference crop defined by American Society of Civil Engineers (Allen et al., 2005)

Wind Speed: Wind speed at 10m height

Downward radiation: Downward surface shortwave radiation (W/m^2)

Vapor Pressure: Monthly average vapor pressure (kPa)

Vapor Pressure Deficit: Monthly average vapor pressure deficit (kPa)

Actual Evapotranspiration: Monthly total actual evapotranspiration (ETa). This value is estimated using a modified one-dimensional Thornthwaite-Mather climatic water-balance model (Willmott et al., 1998; Dobrowski et al., 2013).

Climate water deficit: The difference between ETo and ETa. This value is estimated using a modified one-dimensional Thornthwaite-Mather climatic water-balance model (Willmott et al., 1998; Dobrowski et al., 2013).

Runoff: Excess water after ETa and soil moisture recharge (Abatzoglou et al., 2018). This value is estimated using a modified one-dimensional Thornthwaite-Mather climatic water-balance model (Willmott et al., 1998; Dobrowski et al., 2013).

Soil moisture: Water present in soil profile (volume/area). This value is estimated using a modified one-dimensional Thornthwaite-Mather climatic water-balance model (Willmott et al., 1998; Dobrowski et al., 2013).

Snow water equivalent (SWE): Depth of water if snow were to melt completely (volume/area). This value is estimated using a modified one-dimensional Thornthwaite-Mather climatic water-balance model (Willmott et al., 1998; Dobrowski et al., 2013).

Palmer drought severity index (PDSI): A long term drought index based on precipitation and temperature (Palmer 1965).

Technical Information

Feature
Detail
Extent
Global
Period of Record
1958-present
Spatial Resolution
4km
Temporal Resolution
Monthly (updated annually)
Data Summaries
max, min, mean, median, anomalies, trend and statistical significance, spatial and temporal aggregations, time series, standardized indices
Data Source(s)
ClimatologyLab.org
Data Formats
raster (geotiff), raster tile (tile ID), time series (.csv, .xls, .json, .geojson)
Sources

Abatzoglou, J.T., S.Z. Dobrowski, S.A. Parks, K.C. Hegewisch, 2018, Terraclimate, a high-resolution global dataset of monthly climate and climatic water balance from 1958-2015, Scientific Data 5:170191, doi: 10.1038/sdata.2017.191. (Abstract)

Dobrowski, S. Z. et al. The climate velocity of the contiguous United States during the 20th century. Glob. Chang. Biol 19, 241–251 (2013).

Palmer, W. C. (1965). Meteorological drought (Vol. 30). US Department of Commerce, Weather Bureau.

Willmott, C. J., Rowe, C. M. & Mintz, Y. Climatology of the terrestrial seasonal water cycle. J. Climatol 5, 589–606 (1985).

End User License Agreement

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