Dataset Open Access

Global Soil Bioclimatic variables at 30 arc second resolution

Johan van den Hoogen; Jonas Lembrechts; SoilTemp; Ivan Nijs; Jonathan Lenoir

Soil temperature layers were calculated by adding monthly soil temperature offsets to monthly air-temperature maps from CHELSA (date range 1979-2013) (Karger et al. 2017, Sci Data). These soil temperature layers were then used to calculate annual means, temperature ranges, standard deviation, warmest and coldest months and quarters. Wettest and driest quarters were identified for each pixel based on CHELSA monthly values. A quarter is a period of three months (1/4 of the year).

When using any of these layers, please cite: Lembrechts et al., Mismatches between soil and air temperature (2021). EcoEvoRxiv. DOI: 10.32942/osf.io/pksqw

For each Soil Bioclim layer, two depth intervals are available: 0 - 5 cm and 5 - 15 cm.

We have followed the generally accepted definitions of BIO 1 - BIO 11: 

  • SBIO1 = Annual Mean Temperature
  • SBIO2 = Mean Diurnal Range (Mean of monthly (max temp - min temp))
  • SBIO3 = Isothermality (BIO2/BIO7) (×100)
  • SBIO4 = Temperature Seasonality (standard deviation ×100)
  • SBIO5 = Max Temperature of Warmest Month
  • SBIO6 = Min Temperature of Coldest Month
  • SBIO7 = Temperature Annual Range (BIO5-BIO6)
  • SBIO8 = Mean Temperature of Wettest Quarter
  • SBIO9 = Mean Temperature of Driest Quarter
  • SBIO10 = Mean Temperature of Warmest Quarter
  • SBIO11 = Mean Temperature of Coldest Quarter

These layers are also publicly available as Google Earth Engine assets. These are acessible via:

Also available are monthly maps of soil temperature, for two depth intervals (0-5 cm and 5-15 cm). For example, the soil temperature map for month 1 (January) at 0-5 cm is named soilT_1_0_5cm.tif'. 

To mask pixels by the proportion of extrapolation, the files 'PCA_int_ext_0_5cm.tif' and 'PCA_int_ext_5_15cm.tif' can be used. 

Files (10.3 GB)
Name Size
PCA_int_ext_0_5cm.tif
md5:ca6d00e1a17e29b9fbd8129b67eca036
232.9 MB Download
PCA_int_ext_5_15cm.tif
md5:21f1f7391ccbd1d322dcdeb1cf0f64ab
269.0 MB Download
SBIO10_Mean_Temperature_of_Warmest_Quarter_0_5cm.tif
md5:c5e43875fd87ca62dade954cf7a9b162
203.8 MB Download
SBIO10_Mean_Temperature_of_Warmest_Quarter_5_15cm.tif
md5:55c25b2cb53b11e24acdee1b1c124918
207.7 MB Download
SBIO11_Mean_Temperature_of_Coldest_Quarter_0_5cm.tif
md5:e2b8bf0c65b0198541b4dc1f1911fe03
199.4 MB Download
SBIO11_Mean_Temperature_of_Coldest_Quarter_5_15cm.tif
md5:84e580257ff8fa6cb56df9ef39a7878a
205.8 MB Download
SBIO1_Annual_Mean_Temperature_0_5cm.tif
md5:317a980037b08dc03bc852186aeeea48
188.1 MB Download
SBIO1_Annual_Mean_Temperature_5_15cm.tif
md5:b21fe73aa8efb18cfc27322d5d2a717c
192.6 MB Download
SBIO2_Mean_Diurnal_Range_0_5cm.tif
md5:423ac955194785b64317a271f11cfa67
220.7 MB Download
SBIO2_Mean_Diurnal_Range_5_15cm.tif
md5:8ed877f1ac567cbc6039d218ed8af6d0
197.1 MB Download
SBIO3_Isothermality_0_5cm.tif
md5:daa2e7f079427f87553a809fdf037cbd
288.7 MB Download
SBIO3_Isothermality_5_15cm.tif
md5:7d25513898d8b4a6f555337d32edf907
303.1 MB Download
SBIO4_Temperature_Seasonality_0_5cm.tif
md5:726d9b34e567398e5a751ea6265cf1af
416.5 MB Download
SBIO4_Temperature_Seasonality_5_15cm.tif
md5:a1d53f98ec6499f2cafb299feb04bc17
424.2 MB Download
SBIO5_Max_Temperature_of_Warmest_Month_0_5cm.tif
md5:6b84d666e2e46b17a4ce7ccc5779831b
242.1 MB Download
SBIO5_Max_Temperature_of_Warmest_Month_5_15cm.tif
md5:ffc57caf4d375f2cf3912b7336eec77b
224.9 MB Download
SBIO6_Min_Temperature_of_Coldest_Month_0_5cm.tif
md5:bd9e0339111725e50e81c49233cb6ef5
239.4 MB Download
SBIO6_Min_Temperature_of_Coldest_Month_5_15cm.tif
md5:ec3175803fe9d2b5728116724c164fbb
231.1 MB Download
SBIO7_Temperature_Annual_Range_0_5cm.tif
md5:ccc7772662d36ad3c166a15bacd1bef0
263.3 MB Download
SBIO7_Temperature_Annual_Range_5_15cm.tif
md5:d586c57210261fd77f50c1adc02b26c2
242.5 MB Download
SBIO8_Mean_Temperature_of_Wettest_Quarter_0_5cm.tif
md5:ab27fb24ec93f815350337cacaf644e7
209.2 MB Download
SBIO8_Mean_Temperature_of_Wettest_Quarter_5_15cm.tif
md5:5040c4c3899ef525e9e8ceb98b33aa71
215.9 MB Download
SBIO9_Mean_Temperature_of_Driest_Quarter_0_5cm.tif
md5:e0be633aa2089639cf12f3846bfc75b1
212.1 MB Download
SBIO9_Mean_Temperature_of_Driest_Quarter_5_15cm.tif
md5:59b5da6b1549a0510bc869e85dd4c2d7
216.4 MB Download
soilT_10_0_5cm.tif
md5:36c82a45bb55a1055e55ed8e2c032cc4
180.1 MB Download
soilT_10_5_15cm.tif
md5:a8251dd3557e139fa08df548228f1d01
181.1 MB Download
soilT_11_0_5cm.tif
md5:de30918e95c745c5d2f860e5e0e1b6cb
181.4 MB Download
soilT_11_5_15cm.tif
md5:22f935e0a344cf423007d47edf8d7e60
180.4 MB Download
soilT_12_0_5cm.tif
md5:95f7bc4c00b1bbd1aed601f77cf45a47
181.9 MB Download
soilT_12_5_15cm.tif
md5:530ea172531c8be1186170b1a6f60cc5
191.1 MB Download
soilT_1_0_5cm.tif
md5:125296c38ff329b7e4ab19077e217f43
189.2 MB Download
soilT_1_5_15cm.tif
md5:45a8327f90bbb557f87b8e6c5b48aedc
183.8 MB Download
soilT_2_0_5cm.tif
md5:75b3178b68445b9855c3527e79afc51d
187.9 MB Download
soilT_2_5_15cm.tif
md5:5715ff3e8f2c44f50ebd01976e40efe0
179.9 MB Download
soilT_3_0_5cm.tif
md5:649905d33b39f0a91558251fe5d8cf0d
191.3 MB Download
soilT_3_5_15cm.tif
md5:e95e27a9c4dc19fbb21c9a3ebad33de4
188.7 MB Download
soilT_4_0_5cm.tif
md5:51d243b45ef40327cf391e998011beb4
189.9 MB Download
soilT_4_5_15cm.tif
md5:e7031ee86b372e238d11b15c504dc09b
189.7 MB Download
soilT_5_0_5cm.tif
md5:6bbd15f4df804beab7bd2ea29eac6bd9
188.7 MB Download
soilT_5_5_15cm.tif
md5:3a328bccc06d9bbed09aa26d4b40d38e
195.1 MB Download
soilT_6_0_5cm.tif
md5:87a9ee9009958840f2b4d2a15e199cba
187.3 MB Download
soilT_6_5_15cm.tif
md5:cd35ca0be4a5a44b05716356a20ddd4f
195.1 MB Download
soilT_7_0_5cm.tif
md5:c14e3aeeb70868cbea93c3c2747ba05a
183.8 MB Download
soilT_7_5_15cm.tif
md5:c01235b3de83c8e627cae1b982d91988
194.4 MB Download
soilT_8_0_5cm.tif
md5:5159cbfc2d437ed15f600a3320fd5ace
182.4 MB Download
soilT_8_5_15cm.tif
md5:5d074cf6454746e27d2243a44163198e
187.1 MB Download
soilT_9_0_5cm.tif
md5:bd6f6227b745660b4e70b37124d33004
184.5 MB Download
soilT_9_5_15cm.tif
md5:ea5326b86c5224f83784bab1571e7051
185.3 MB Download
  • Karger, D. N., Conrad, O., Böhner, J., Kawohl, T., Kreft, H., Soria-Auza, R. W., Zimmermann, N. E., Linder, H. P., & Kessler, M. (2017). Climatologies at high resolution for the earth's land surface areas. Scientific Data, 4, 1–20. https://doi.org/10.1038/sdata.2017.122

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