EFG F2.4 Freeze-thaw lakes – current maps

F2. Lakes biome

F2
valid
Published

June 7, 2024

This page provides information about the valid indicative distribution map for the ecosystem functional group F2.4 Freeze-thaw freshwater lakes. For older or alternative maps, see here.

Methods

Here is the methods summary for Map code and version: F2.4.web.mix v1.0.

Location of small and large natural lakes was taken from the HydroLAKES database (types 1 an 3 in Messager et al. 2016). We included all lakes with minimum temperature below 0°C (Linke et al. 2019). Occurrences were aggregated to ten minute spatial resolution.

Datasets

HydroAtlas-1.0 (Linke et al. 2019):

Source of Hydrography. Resolution: <1km2, static. Accuracy evaluation: derived from sources.

HydroLAKES-1.0 (Messager et al. 2016):

Source of validated distribution records. Resolution: <1km2, static. Accuracy evaluation: quantitative (subsets).

dataset url
HydroAtlas-1.0 https://www.hydrosheds.org/page/hydroatlas
HydroLAKES-1.0 https://www.hydrosheds.org/page/hydrolakes

Processing

Processing steps used in this map are: Thresholds :: Reclassification.

Map evaluation

This map is considered to be a Medium quality map based on the following characteristics:

Concept alignment is Direct,general.

Ground observations are NA.

The accuracy evaluation Compiled from reputable source data,documented,quantitative,derived from sources.

How to use the data

Available files

Following maps are considered current and valid indicative distribution maps for this ecosystem functional group. Web navigation maps are optimised for use in webapps, but they have similar methods and differ only in details of format and processing.

  • Indicative Map (code: F2.4.IM.mix, version v1.0)
  • Web navigation (code: F2.4.web.mix, version v1.0)

You can download geospatial data for this map from the following sources:

F2.4.IM.mix (v1.0): Google Cloud bucket :: Zenodo repository (bundle of maps)

F2.4.web.mix (v1.0): Google Cloud bucket :: Zenodo repository (bundle of maps) :: Zenodo repository (EFG map) :: Mapbox tileset :: Earth Engine assets

Note that you need to login to some services like mapbox or earthengine, and in some cases you also need to request access to the files.

License information

Indicative maps have been released with a Creative Commons Attribution 4.0 International license.

Datasets used to create this map have similar licenses, but please check the license information below.

dataset license_info
HydroAtlas-1.0 http://creativecommons.org/licenses/by/4.0/ :: Creative Commons Attribution (CC-BY) 4.0 International License
HydroLAKES-1.0 Creative Commons Attribution (CC-BY) 4.0 International License :: http://creativecommons.org/licenses/by/4.0/

References

References used in this version of the maps.

  • Messager, M.L., Lehner, B., Grill, G., Nedeva, I., Schmitt, O. (2016) Estimating the volume and age of water stored in global lakes using a geo-statistical approach Nature Communications 13603 DOI:10.1038/ncomms13603
  • Linke, S., Lehner, B., Ouellet Dallaire, C., Ariwi, J., Grill, G., Anand, M., Beames, P., Burchard-Levine, V., Maxwell, S., Moidu, H., Tan, F., Thieme, M. (2019) Global hydro-environmental sub-basin and river reach characteristics at high spatial resolution Scientific Data 6: 283 DOI:10.1038/s41597-019-0300-6