Tools and Resources


Mobile Weather Stations

mobile weather stationsLow-cost mobile weather stations are designed to help us monitor the weather more closely. These devices could help rural communities better prepare for floods and landslides. All of the work featured here is open source.

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Sri Lanka Water Resources Information System

Sri Lanka Water Resources Information SystemThe Sri Lanka Water Resources Information System aims to provide a web-based framework with access to information on water resources in Sri Lanka.

The objectives of this information system are as follows:

  • Provide a clear understanding of the status and trends of the country’s water resources.
  • Provide a web-based interactive information and mapping portal for exploring data, information and maps related to water resources.
  • Produce a water resources assessment for Sri Lanka at various scales (river basin, administrative boundary, etc.)

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Water Data Portal

The Water Data PortalWater Data Portal is a one stop shop to access all IWMI research data. Access is provided based on IP rights/copyrights and based on our agreements with partners and data providers. Though all possible efforts are made to make all data open source we have to respect our commitments. The Water Data Portal is our way of setting our data free as Global Public Good (GPG) to be used by global research community, scientists and academia.

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Project Map

ProjectMap.iwmi.orgAn interactive searchable map showing locations and snapshots of all IWMI projects since 2004.

You can refine your search by:

  • Research Program
  • Year in which project ended
  • Country

It features an advanced search and the ability to switch to a list view for quick browsing of the project information.

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IWMI’s World Water and Climate Atlas

Water and Climate AtlasThe IWMI World Water and Climate Atlas gives irrigation and agricultural planners rapid access to accurate data on climate and moisture availability for agriculture. The Atlas includes monthly and annual summaries for precipitation, temperature, humidity, hours of sunshine, evaporation estimates, wind speed, total number of days with and without rainfall, days without frost and Penman-Montieth reference evapotranspiration rates. The core of the Atlas is data assembled from weather stations around the world for the period 1961-1990. Data can be extracted in summary, manipulated using the Atlas software, or exported in a standardized format for use in other applications. Users can also include their own local data for a more detailed picture of a particular area.

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IWMI’s Drought Monitoring System

IWMI Drought Monitoring System

A prototype regional drought monitoring system (DMS) for South-West Asia was developed in 2004 with funding from the US State Department Regional Environment Office for South Asia. It was meant to serve as an illustration of capabilities provided by remote sensing data for drought monitoring and as an example that may be replicated (and developed further) in other regions. The system uses an on-line remote sensing database to monitor drought development through continuous assessment of the condition of ground vegetation. It operates at the fine level of spatial resolution (0.5 km X 0.5 km) and in near-real time, whereby new data can be added every 8 or 16 days.

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Eco-Hydrological Databases

Eco-Hydrological Databases on this site contain specific information pertaining to various aspects of functioning, requirements and management of freshwater ecosystems. The information is extracted from formally published papers and reports, unpublished documents, Internet sites and experts opinions.

Eco-Hydrological DatabasesThree databases are available at present:

  1. Estimates of environmental flow requirements in world river basins
  2. Environmental flow assessment for aquatic ecosystems: a database of methodologies
  3. Quantification of hydrological functions of inland wetlands

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IWMI Mobile Apps

IWMI Mobile AppsDownload and freely use our custom-built mobile apps for both Apple iOS and Android devices.

Three apps are available:

  1. IWMI-Comms
  2. IWMI-Publications
  3. IWMI-Data

View the site at