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High-resolution global topographic index values
OwnerUK Centre for Ecology & Hydrology (UKCEH) - view all
Update frequencyunknown
Last updated22 days ago
Format
Overview

The topographic index is a hydrological quantity describing the propensity of the soil at landscape points to become saturated with water as a result of topographic position (i.e. not accounting for other factors such as climate that also affect soil moisture but are accounted for separately). Modern land surface models require a characterisation of the land surface hydrological regime and this parameter allows the use of the TOPMODEL hydrological model to achieve this .This Geographic Information System layer is intended for use as topographic ancillary files for the TOPMODEL routing model option within the Joint UK Land Environment Simulator (JULES) land surface model. The topographic index variable here is directly comparable to the compound topographic index available from United States Geological Survey's Hydro1K at 30 sec resolution. PLEASE NOTE: This dataset is a correction to a previous version which was found to contain errors ( https://doi.org/10.5285/ce391488-1b3c-4f82-9289-4beb8b8aa7da ). In the previous version all pixels north of 4.57 degrees south were shifted consistently 9.3 km to the west. This version is correctly aligned at all points.

Additional Information
KeyValue
contact_emailenquiries@ceh.ac.uk
contact_nameDr. Toby Marthews
contact_urihttps://catalogue.ceh.ac.uk/id/6b0c4358-2bf3-4924-aa8f-793d468b92be_c0
dcat_typehttp://purl.org/dc/dcmitype/Dataset
guidhttps://catalogue.ceh.ac.uk/id/6b0c4358-2bf3-4924-aa8f-793d468b92be
identifier1425985863014
language["eng"]
provenancen397da48a82c34dd09ae0ca5ff473b4bab7032
publisher_urihttps://ror.org/04xw4m193
spatial_textPOLYGON((-180 -90, -180 90, 180 90, 180 -90, -180 -90))
urihttps://catalogue.ceh.ac.uk/id/6b0c4358-2bf3-4924-aa8f-793d468b92be
harvest_object_idca649b9b-baef-41e0-9078-aef74742ac81
harvest_source_idd4fbf67d-0e8f-4732-a34e-be92ef65e401
harvest_source_titleceh-eidc
Files
  • NetCDF
    0b9fda13-3a2b-42d3-a591-f1a87c8fbb59
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