Water Weather Energy Ecosystem Technology and Data


SWAT-CUP Premium

SWAT-CUP Premium is an improved version of SWAT-CUP, which allows behavioral and multi-objective calibration.


SWAT-CUP is a Calibration Uncertainty Program for SWAT. It can also be used to perform validation and sensitivity analysis.

SWATplus-CUP 2021

SWATplusCUP is a calibration/uncertainty analysis program for SWAT+.

Climate Change Toolkit

Climate Change Toolkit (CCT) handles all climate change analyses tasks.

SWAT-MODSIM coupled model

The coupled SWAT-Modsim model is used for water resource management tasks.

Global ET observation

The MODIS-NASA actual evapotranspiration data is used for SWAT calibration.

Global IPCC Climate Data

Global IPCC Climate Database is SWAT format CMIP5 climate data from ISI-MIP.

Global Historical Climate Data

The Global Historical Climate is CRU database with SWAT format for 1970-2006.

Global Soil FAO-UNESCO

The Global Soil FAO map has 4861 soil types with SWAT format.

Global Soil HWSD(v121)

The Global Soil HWSD map has 16328 soil types with SWAT format.

Global Landuse Globcover

The Globecover landuse map has 23 different landuse types with SWAT format.

Global Landuse USGS

The USGS landuse map has 23 different landuse types with SWAT format.

About Us

2w2e (wwee) stands for Water, Weather Energy, and Ecosystem. 2w2e is an independent institute for applied research in the field of water, weather, energy, and ecosystem. Throughout the world, we work on smart solutions, innovations, and applications for people, environments, and societies. Our focus is on watershed modeling and river basin management. We have many experiences in the fields of hydrology, water quantity, and quality in small and large watersheds. We have developed many products to facilitate the modeling of earth and atmospheric phenomena. The 2w2e aims to become an influential corporate group that competes successfully anywhere in the world. We believe in creating new solutions in the areas of water and the environment, to become a presence that can inspire high expectations and strong confidence among global stakeholders. Our products in system analyses are used in more than 95 countries in a great variety of commercial and research products. To train and educate users, we provide regular workshops. For an overview of our products and previous projects, please click on the Products and Projects pages.

Areas of expertise

  • Watershed modelling

    Watershed modelling:

    The use of hydrologic and water allocation models has been widely expanding to support decision-makers to make better decisions concerning all watershed-related issues, including analysis of water quality and quantity, ecosystem services viability, economic analysis, and climate change impacts. 2w2e provides high-quality modeling results in all these issues and much more. Please visit the “Previous Project” page for details of previous projects.
  • Calibration and uncertainty analysis

    Calibration and uncertainty analysis:

    Calibration and uncertainty analysis are essential steps in modeling. Decision-makers must be made aware of assessment uncertainties and their risks and implications. Having developed programs and system analysis tools, which are globally used, 2w2e provides risk assessment and best management practices options.
  • Large-scale simulations

    Large-scale simulations:

    The use of large-scale, high-resolution water resources models enables consistent and comprehensive examination of integrated system behavior through physically-based, data-driven simulation. 2w2e has many experiences in data preparation, calibration, validation and uncertainty analysis of large-scale distributed models.
  • Climate and landuse change impact studies

    Climate/landuse change impact studies:

    2w2e provides a thorough analysis of climate change impact & remediation options on all aspects of watershed management, including water quantity and quality, crop production, soil erosion, and other ecosystem services.
  • Drought and flood analysis

    Drought/flood analysis:

    Extreme events such as droughts and floods have always had devastating effects on people’s lives. These effects are on the rise due to climate change impact. 2w2e provides a probabilistic prediction of these “compounding extreme events” using previous occurrences in a region.
  • Dam operation optimization

    Dam operation optimization:

    The operation of dams plays a vital role in the improvement of water quality and quantity as well as increasing the income of society. 2w2e provides the necessary tools and frameworks for optimum dam operation and water allocation schemes.

Previous Projects


You can contact us by phone or by email. If you have a specific question or if you would like us to carry out a study or research, please try to formulate your requests as precisely as possible and send us an email. This will ensure that your query is forwarded to the most qualified expert.


Mettlenweg 3, Dübendorf 8600, Zürich, Switzerland


+41 (0)78 825 62 87