One major obstacle for regional water cooperation is the lack of reliable data. This concerns, on the one hand, missing monitoring and measuring data due to the closure or lack of measurement points, especially in the areas of water formation. On the other hand, it refers to the absence of a region-wide accepted system of data exchange. Sharing data and planning are considered first steps in building up trust and initiating cooperation among riparian states, so many donors are active in this sphere.
Since 2003, the Central Asia Regional Water Information Base (CAREWIB), which is financed mainly by SDC and implemented by SIC ICWC, in cooperation with UNECE and GRID Arendal, has maintained an Internet portal with information and databases on water and the environment in Central Asia, including up-to-date flow data. The World Bank, in the framework of its regional «Central Asia Energy-Water Development Program» (CAEWDP), is supporting hydrometeorology services in Kyrgyzstan and Tajikistan, as well as their regional coordination. One main component of the German «Berlin Process» is the regional research network «Central Asian Water» (CAWa), coordinated by the German Research Centre for Geosciences (GFZ) in close cooperation with the Central Asian Institute of Applied Geosciences (CAIAG) in Bishkek. Its objective is to contribute to a sound scientific and reliable regional data base for the development of sustainable water management strategies by, among other things, installing hydrometeorological stations and conducting analysis of the impacts of climate change.[See http://www.cawater-info.net, http://go.worldbank.org/OG3ADWOAK0, http://www.cawa-project.net/.]