Marthews, T.; Quesada, C.A.; Galbraith, D.R.; Malhi, Y.; Mullins, C.E.; Hodnett, M.G.; Dharssi, I.

High-resolution hydraulic parameter maps for surface soils in tropical South America

Spatial data files holding gridded parameter maps of surface soil hydraulic parameters derived from a selection of pedotransfer functions. Modern land surface model simulations capture soil profile water movement through the use of soil hydraulics sub-models, but good hydraulic parameterisations are often lacking - especially in the tropics - and it is this lack that we fill here in the context of South America. Optimal hydraulic parameter values are given for the Brooks and Corey, Campbell, van Genuchten-Mualem and van Genuchten-Burdine soil hydraulic models, which are widely-used hydraulic sub-models in many land surface models (e.g. Joint UK Land Environment Simulator JULES).

Publication date: 2014-04-03

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Supporting documentation

This dataset is available as

  • NetCDF
  • TIFF

This dataset is made available under the terms of the Open Government Licence

You must cite: Marthews, T.; Quesada, C.A.; Galbraith, D.R.; Malhi, Y.; Mullins, C.E.; Hodnett, M.G.; Dharssi, I. (2014). High-resolution hydraulic parameter maps for surface soils in tropical South America. NERC Environmental Information Data Centre. https://doi.org/10.5285/4078678b-768f-43ff-abba-b87712f648e9

 

© Centre for Ecology & Hydrology (Natural Environment Research Council)

Where/When

Study area
Temporal extent
2010-01-01    to    …

Supplemental information

Other useful information regarding this dataset:

Marthews, T. R., Quesada, C. A., Galbraith, D. R., Malhi, Y., Mullins, C. E., Hodnett, M. G., and Dharssi, I.: High-resolution hydraulic parameter maps for surface soils in tropical South America, Geosci. Model Dev., 7, 711-723

Provenance & quality

Soil measurements have been interpolated from several sources including new and original data as well as older sources such as RADAMBRASIL http://daac.ornl.gov/LBA/guides/Pre_LBA_RADAMBrasil.html , using the polygons of the SOTERLAC soil and terrain database as a base (http://www.isric.org/projects/soter-latin-america-and-caribbean-soterlac ). All files were generated using Esri ArcGIS 10.0 at 15 arc-sec resolution (cells ~ 450 m x 450 m at the Equator) snapped to the HydroSHEDS Digital Elevation Model (http://www.hydrosheds.org/ ). All NetCDF files conform to the Climate and Forecast (CF) conventions. For more detail of all methods followed, please see Marthews et al. (2014).

Correspondence/contact details

Dr. Toby Marthews
Centre for Ecology & Hydrology
Maclean Building, Benson Lane, Crowmarsh Gifford
Wallingford
Oxfordshire
OX10 8BB
United Kingdom
enquiries@ceh.ac.uk

Authors

Marthews, T.
University of Oxford
Quesada, C.A.
Instituto Nacional de Pesquisas da Amazônia
Galbraith, D.R.
University of Leeds
Malhi, Y.
University of Oxford
Mullins, C.E.
independent
Hodnett, M.G.
independent
Dharssi, I.
Bureau of Meteorology

Other contacts

Custodian
Environmental Information Data Centre
eidc@ceh.ac.uk
Publisher
NERC Environmental Information Data Centre
eidc@ceh.ac.uk

Spatial

Spatial representation type
Raster
Spatial reference system
WGS 84

Tags

Topic categories
Environment
Keywords
Amazon,  Amazonia,  pedotransfer function,  saturated water,  Tropical South America