BioLake bioclimatic variables based on ERA5-Land lake temperature estimates 1991-2020
Dates
Publication Date
2022-11-02
Start Date
1991-01-01
End Date
2020-12-31
Citation
Burner, R.C., and Erickson, R.A., 2022, BioLake bioclimatic variables based on ERA5-Land lake temperature estimates 1991-2020: U.S. Geological Survey data release, https://doi.org/10.5066/P96QLN5Y.
Summary
These BioLake raster data provide global estimates (~10.0 x 12.4 km resolution) of twelve bioclimatic variables based on estimated lake temperature. Eleven of these twelve variables (BioLake01 - BioLake11) are estimated for each of three lake strata: lake mix (surface) layer, lake bottom, and total lake water column. These eleven variables correspond to CHELSA (Climatologies at high resolution for the earth's land surface areas) bioclimatic variables BIO1 - BIO11, except that these BioLake variables are based on lake water temperature and CHELSA BIO1 - BIO11 variables are based on air temperature. CHELSA BIO is also calculated a finer spatial resolution (~1 x 1 km). The twelfth variable (BioLake20; months with non-zero ice cover) does [...]
Summary
These BioLake raster data provide global estimates (~10.0 x 12.4 km resolution) of twelve bioclimatic variables based on estimated lake temperature. Eleven of these twelve variables (BioLake01 - BioLake11) are estimated for each of three lake strata: lake mix (surface) layer, lake bottom, and total lake water column. These eleven variables correspond to CHELSA (Climatologies at high resolution for the earth's land surface areas) bioclimatic variables BIO1 - BIO11, except that these BioLake variables are based on lake water temperature and CHELSA BIO1 - BIO11 variables are based on air temperature. CHELSA BIO is also calculated a finer spatial resolution (~1 x 1 km). The twelfth variable (BioLake20; months with non-zero ice cover) does not correspond to any CHELSA bioclimatic variable. The data are supplied as a multi-layer raster (.grd) file in the World Mollweide projection, accompanied by a header file (.gri) with layer names.
Click on title to download individual files attached to this item.
BioLake_metadata.xml Original FGDC Metadata
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38.71 KB
application/fgdc+xml
BioLake_v1.0.grd
2.74 KB
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BioLake_v1.0.gri
711.54 MB
application/unknown
Related External Resources
Type: Related Primary Publication
Burner, R.C., Daniel, W.M., Engelstad, P.S., Churchill, C.J., and Erickson, R.A., 2023, BioLake: A first assessment of lake temperature‐derived bioclimatic predictors for aquatic invasive species: Ecosphere, v. 14, no. 7, https://doi.org/10.1002/ecs2.4616.
These variables were calculated to allow researchers and managers to quantify the degree of climatic similarity among lakes in various locations. Each BioLake variable is meant to capture a biologically relevant axis of variation. These variables can be useful for e.g. species distribution modeling, predicting invasive species risk for new sites, and estimating the fundamental niches of species based on their distributions. Note that these variables are calculated from lake (rather than river) temperature estimates and so will likely not provide good estimates of river temperature in these same areas for most rivers. The BioLake variables are supplied as a single raster file in .grd format, accompanied by a .gri file that holds the layer names. These files can be used by e.g. reading in the .grd file using the Raster package in R, or read in using a GIS program. Code used to produce these layers is available (https://code.usgs.gov/umesc/quant-ecology/biolake).
