GLobal HYdrogeology MaPS (GLHYMPS) of permeability and porosity
The lack of robust, spatially distributed subsurface data is the key obstacle limiting the implementation of complex and realistic groundwater dynamics into global land surface, hydrologic, and climate models. We map and analyze permeability and porosity globally and at high resolution for the first...
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dataone:sha256:9089ec6844641a09fd6314cfeb777f04ed6b112102a1399c7ccceb143c035284 2024-03-03T19:46:31+00:00 GLobal HYdrogeology MaPS (GLHYMPS) of permeability and porosity Gleeson, Tom 2018-10-25T00:00:00Z https://search.dataone.org/view/sha256:9089ec6844641a09fd6314cfeb777f04ed6b112102a1399c7ccceb143c035284 unknown Groundwater Earth and Environmental Sciences Open (Open Access Tag) Hydrology Dataset 2018 dataone:urn:node:BOREALIS 2024-03-03T19:11:52Z The lack of robust, spatially distributed subsurface data is the key obstacle limiting the implementation of complex and realistic groundwater dynamics into global land surface, hydrologic, and climate models. We map and analyze permeability and porosity globally and at high resolution for the first time. The new permeability and porosity maps are based on a recently completed high-resolution global lithology map that differentiates fine and coarse-grained sediments and sedimentary rocks, which is important since these have different permeabilities. The average polygon size in the new map is ~100 km2, which is a more than hundredfold increase in resolution compared to the previous map which has an average polygon size of ~14,000 km2. We also significantly improve the representation in regions of weathered tropical soils and permafrost. The spatially distributed mean global permeability ~10-15m2 with permafrost or ~1014m2 without permafrost. The spatially distributed mean porosity of the globe is 14%. The maps will enable further integration of groundwater dynamics into land surface, hydrologic, and climate models. Dataset permafrost Unknown |
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Open Polar |
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dataone:urn:node:BOREALIS |
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Groundwater Earth and Environmental Sciences Open (Open Access Tag) Hydrology |
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Groundwater Earth and Environmental Sciences Open (Open Access Tag) Hydrology Gleeson, Tom GLobal HYdrogeology MaPS (GLHYMPS) of permeability and porosity |
topic_facet |
Groundwater Earth and Environmental Sciences Open (Open Access Tag) Hydrology |
description |
The lack of robust, spatially distributed subsurface data is the key obstacle limiting the implementation of complex and realistic groundwater dynamics into global land surface, hydrologic, and climate models. We map and analyze permeability and porosity globally and at high resolution for the first time. The new permeability and porosity maps are based on a recently completed high-resolution global lithology map that differentiates fine and coarse-grained sediments and sedimentary rocks, which is important since these have different permeabilities. The average polygon size in the new map is ~100 km2, which is a more than hundredfold increase in resolution compared to the previous map which has an average polygon size of ~14,000 km2. We also significantly improve the representation in regions of weathered tropical soils and permafrost. The spatially distributed mean global permeability ~10-15m2 with permafrost or ~1014m2 without permafrost. The spatially distributed mean porosity of the globe is 14%. The maps will enable further integration of groundwater dynamics into land surface, hydrologic, and climate models. |
format |
Dataset |
author |
Gleeson, Tom |
author_facet |
Gleeson, Tom |
author_sort |
Gleeson, Tom |
title |
GLobal HYdrogeology MaPS (GLHYMPS) of permeability and porosity |
title_short |
GLobal HYdrogeology MaPS (GLHYMPS) of permeability and porosity |
title_full |
GLobal HYdrogeology MaPS (GLHYMPS) of permeability and porosity |
title_fullStr |
GLobal HYdrogeology MaPS (GLHYMPS) of permeability and porosity |
title_full_unstemmed |
GLobal HYdrogeology MaPS (GLHYMPS) of permeability and porosity |
title_sort |
global hydrogeology maps (glhymps) of permeability and porosity |
publishDate |
2018 |
url |
https://search.dataone.org/view/sha256:9089ec6844641a09fd6314cfeb777f04ed6b112102a1399c7ccceb143c035284 |
genre |
permafrost |
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permafrost |
_version_ |
1792544800939966464 |