Spatial Tools for River Basins and Environment and Analysis of Management Options (STREAM)

STREAM is a spatial hydrological model that allows for assessing hydrological impacts due to changes in climate and socio-economic drivers. It is set up according to a policy analysis framework and ensures a structured approach for an entire river basin including the coastal zone. 

STREAM has been primarily applied to studies to assess impacts of climate change, climate variability and land use changes (including dams and reservoirs) to water resources in river basins. For these issues, STREAM enables calculation of the impacts of changes in temperature and precipitation on the regional hydrology. Based on these impacts, different management strategies can be assessed by providing a quantitative assessment of water availability under various scenarios.

STREAM uses hydrological input data, scenarios, and adaptive strategies and provides output data on water availability and (salt water) quality. The model integrates several types of interactions, including land and water uses (i.e. short term deforestation and dam building), and long term climate change impacts.

The main advantage of STREAM is that it primarily uses public domain data from the internet providing a very first order of estimates on impacts. This makes the STREAM instrument very flexible for future extensions and adjustments. The next stage of development, calibration and validation, is usually performed in close cooperation with local stakeholders, using local time series of in and output data increasing the level of reliability.



Related Organizations:

  • Institute for Environmental Studies, Vrije Universiteit Amsterdam
  • United Nations Framework Convention on Climate Change (UNFCCC)


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Resource Types:

  • Modeling tool


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