Title: Technical Assistance for the collection of data and development of a digital terrain model (bathymetry) in five reservoirs in the Tagus River basin in the «Operation and Maintenance of the Automatic Hydrological Information System (AHIS) of Tagus.» Contract. Ref: 03.799-020/0411.

Amount: U.S. $ 21,098.

Year: 2009-2011.

Area of Specialization: Hydrographical Services. Bathymetry.

Purpose of work: Implementation of 9 precision bathymetric surveys in reservoirs in the Hydrographical Demarcation of the Tagus River. Field and office tasks for making up three-dimensional models and level contours by using GPS methodology with differential correction. Drafting of reports with calculations of morphometric variables.