User:R.J.Oosterbaan

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Dutch. Born in 1939. First name Roland. Worked in almost 30 countries in Asia, Africa and Latin America in agricultural water management, irrigation/drainage/flood-control and land reclamation.
Lived with family in Sudan, Chile and Peru. Independent consultant, but was employed for quite some time with the International Institute for Land Reclamation and Improvement (ILRI), Wageningen, The Netherlands.
Languages: (1) Dutch, (2) English and Spanish, (3) German and French, in that descending order of command.
I own, made and maintain website www.waterlog.info to share my professional experiences and to provide free downloads of articles and software I developed because of need in my work.
The software was initially made in Fortran, later user interfaces were made in Turbo Pascal, and recently I rewrote the programs in Delphi.
I have no licenses except drivers license.
In June 2007, as a newcomer to Wikipedia, I have added the following articles: (1) Cumulative frequency analysis, (2) Segmented regression, (3) Groundwater model, (4) Salinity control, (5) Watertable control, (6) Well drainage. Under Energy balance I have added the "Energy balance of groundwater flow".
Under Drainage system I have added "Agricultural drainage system", and under Flood forecasting I have added and external link to the rainfall-runoff model "RainOff" on my website.
Later in June "Agricultural aspects", "Chemical reactions" and "Soil restoration" were added to Acid sulphate soils and a new page was made for Alkali soils.
Further I added "Irrigation for agriculture" to Aswan Dam.
On 22 June 2007 Groundwater model was given additional links and the SahysMod part was moved to a separate page by Mwtoews. Nice job.
On 15 July 2007 a new page was created on Drainage research.
On 1 October 2007 the SaltMod part, that was removed from Salinity control at the suggestion of Saganaki and Hongooi, was given a separate page.
On 22 March 2008 details of the energy balance of groundwater flow were moved from Energy balance to Groundwater energy balance.