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The data you need for your model, Find it here! From lab scale to global scale datasets:

HYBRAS - Hydrophysical Database for Brazilian Soils

Collaborators: Department of Hydrology of the Geological Service of Brazil / CPRM, supported by the Federal University of Rio de Janeiro/Brazil, the Federal University of São Carlos/Brazil and international researchers.

HYBRAS gathers water retention data in a wide suction range (0-15000 cm) of Brazilian soils, all measured in undisturbed samples, as well as saturated hydraulic conductivity, granulometric fractions, particle density and bulk density and carbon content data with information of the sites from where the soil samples were obtained. The methodology for determining these soil properties is also available in HYBRAS. It is envisaged in the future to include in HYBRAS unsaturated hydraulic conductivity data!

The Geological Survey of Brazil, in partnership with other research institutions, is developing several pedotransfer functions of hydraulic properties in the Brazilian territory so that they can be used as input data in Brazilian soil modeling studies.

Contact Marta Vasconcelos Ottoni from Geological Survey (CPRM) Brazil or visit

HYBRAS website in english:


HYBRAS paper:



ISMCs Soil Water Infiltration Global Database

Information gathered in our community and published:

Rahmati, Mehdi; Weihermüller, Lutz; Vereecken, Harry (2018): Soil Water Infiltration Global (SWIG) Database. PANGAEA,

Supplement to: Rahmati, M et al. (2018): Development and Analysis of Soil Water Infiltration Global Database. Earth System Science Data



Site/Lysimeter scale data


  • Site scale soil data on soil retention and conductivity curve (sDB), Vereecken 2007.

Further featured in: Revisiting Vereecken Pedotransfer Functions: Introducing a Closed-Form Hydraulic Model. By: Weynants, M.; Vereecken, H.; Javaux, M. VADOSE ZONE JOURNAL   Volume: 8   Issue: 1   Pages: 86-95   Published: FEB 2009

The link to the data base archive:

Catchment scale data
Eifel/Lower Rhine Valley Observatory

Basin to continental/global scale data

  • Mualem-Van Genuchten data at continental scale:

the link to the paper:

and this the link to the data set:

another data set is published with sub-grid soil moisture variability of satellite products:

EU-SoilHydroGrids,Coverage: Europe
Resolution: both 250 m and 30 arcseconds  
  • For long term experiments (either Long Term agricultural field sites, or Long Term Ecological Research sites), a comprehensive global inventory/map with links to the site soil databases is recently hosted by the ISCN website: Long term Soil experiments databases

  • Other avenues to find soil site data are more regional/national:

For US: WSS:

For Europe: ESDAC:

Global data networks:

International Soil Moisture Network:

or satellite derived:

global ECV soil moisture data set:

or NASAs SMAP data with daily soil moisture:

that also provides derived information from soil moisture and temperature inputs with ancillary land cover classification and vegetation gross primary productivity (GPP) inputs to compute the net ecosystem exchange (NEE) of carbon dioxide with the atmosphere over global vegetated land areas.



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