WorldClim BIO Variables V1 (WORLDCLIM/V1/BIO)

Version V1

WorldClim V1 Bioclim provides bioclimatic variables that are derived from
the monthly temperature and rainfall in order to generate more biologically
meaningful values.

The bioclimatic variables represent annual trends (e.g., mean annual
temperature, annual precipitation), seasonality (e.g., annual range in
temperature and precipitation), and extreme or limiting environmental
factors (e.g., temperature of the coldest and warmest month, and
precipitation of the wet and dry quarters).

The bands scheme follows that of ANUCLIM, except that for temperature
seasonality the standard deviation was used because a coefficient of
variation does not make sense with temperatures between -1 and 1.

WorldClim version 1 was developed by Robert J. Hijmans, Susan Cameron,
and Juan Parra, at the Museum of Vertebrate Zoology, University of
California, Berkeley, in collaboration with Peter Jones and Andrew Jarvis
(CIAT), and with Karen Richardson (Rainforest CRC).

NameDescriptionGee UnitGee Scale
bio01Annual mean temperature°C0.1
bio02Mean diurnal range (mean of monthly (max temp - min temp))°C0.1
bio03Isothermality (bio02/bio07)%
bio04Temperature seasonality (Standard deviation * 100)°C0.01
bio05Max temperature of warmest month°C0.1
bio06Min temperature of coldest month°C0.1
bio07Temperature annual range (bio05-bio06)°C0.1
bio08Mean temperature of wettest quarter°C0.1
bio09Mean temperature of driest quarter°C0.1
bio10Mean temperature of warmest quarter°C0.1
bio11Mean temperature of coldest quarter°C0.1
bio12Annual precipitationmm
bio13Precipitation of wettest monthmm
bio14Precipitation of driest monthmm
bio15Precipitation seasonalityCoefficient of Variation
bio16Precipitation of wettest quartermm
bio17Precipitation of driest quartermm
bio18Precipitation of warmest quartermm
bio19Precipitation of coldest quartermm


University of California, Berkeley (producer, licensor)
Google Earth Engine (host)
STAC Version 0.6.0
Keywords berkeley, bio1, bio10, bio11, bio12, bio13, bio14, bio15, bio16, bio17, bio18, bio19, bio2, bio3, bio4, bio5, bio6, bio7, bio8, bio9, bioclim, climate, coldest, diurnal, driest, isothermality, monthly, precipitation, seasonality, temperature, ucb, warmest, weather, wettest, worldclim
License proprietary
Temporal Extent 12/31/1959, 4:00:00 PM - 12/31/1990, 4:00:00 PM
Citation Hijmans, R.J., S.E. Cameron, J.L. Parra, P.G. Jones and A. Jarvis, 2005. Very High Resolution Interpolated Climate Surfaces for Global Land Areas. [International Journal of Climatology 25: 1965-1978](
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