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Global Infiltration Database

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

Through ISMC ...

 ... we initiated a world-wide effort on collecting infiltration measurements and related soil properties. This database provides crucial information for soil parameterization and will make such data globally available. Since infiltration controls the partitioning of water that reaches the land surface in a fraction that is entering the soil profile and a fraction that generates overland flow or surface runoff, the accurate prediction of infiltration is of great importance for our modeling community, as it directly affects soil moisture and the partitioning of energy fluxes at the land surface (including feedback mechanisms between the land surface and the atmosphere).

Aim for the analysis of the database in this phase is developing pedotransfer functions to estimate parameters in infiltration equations (e.g. Philip equation but eventually also other equations and parametrizations) from infiltration experiments. For information about the planned analysis, contact Medhi Rahmati (

The input needed ...

... for the database are the original infiltration data (cumulative infiltration versus time) and the corresponding soil properties (e.g. texture, carbon content, bulk density, …) including soil structural properties or taxonomic information if available. Any metadata describing the experimental data in more detail are welcomed. Data may stem from lab scale, plot, field and catchment scale experiments. The established database will be published in a data journal (e.g. Earth System Data Science).  Up to now we have collected about 1300 infiltration curves with corresponding soil properties.

Up to now ...

... ,we have collected 2552 infiltration curves with their respective soil characteristics. There is much more data being treated at this moment for integration in the database and several people are working to digitize and add them into our database. Yet we are not covering all relevant textural classes and possible ranges of soil properties. Any data provider will be included as co-author on the manuscript. The global distribution of the collected and treated data up to now is presented in this map.


We believe that there are lots of data that we hope to retrieve and add in our Global Infiltration Database and for this we need your help in distributing our request to other researchers.

So, please forward this message to experts in your region who have collected infiltration data.


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