Water Weather Energy Ecosystem Technology and Data



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

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 Database

This database is with the resolution of 5 km and extracted from global FAO 1995.

Global Landuse USGS

The map was constructed from the USGS Global Land Cover Characterization database.

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, environment and society. Our focus is on watersheds and river basins management. We have many experiences in the field of water quantity and quality analysis, small watersheds and large scale modelling. We have developed many products to facilitate the modelling process of earth and atmosphere phenomena. The 2w2e aims to become a strong 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 main products are SWAT-CUP, CCT, SM coupled model. Our experts as well as our clients apply SWAT-CUP, CCT, SWAT-MODSIM and other products in more than 95 countries in a great variety of commercial projects and research studies. To train and educate users, several workshops and videos are available. The latest workshops announced in news and events page. For an overview of all our software simulation products and solutions, click on products page.

Areas of expertise

  • Watershed modelling

    Watershed modelling:

    The use of hydrologic and water allocation models has been widely expanding in order to support decision makers dealing with watersheds related to several economic and social activities. 2w2e provides high-resolution modeling to assess water supply, energy generation, and water availability for different demand sectors.
  • Calibration and uncertainty analysis

    Calibration and uncertainty analysis:

    Calibration and uncertainty analysis plays important roles on systems modeling. 2w2e provides efficient solutions to calibrate and validate water related modeling properly
  • 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 a lot of experiences on data preparation, calibration, validation and uncertainty analysis of large-scale distributed models
  • Climate and landuse change impact studies

    Climate/landuse change impact studies:

    2w2e provide a consistent information package on the impact assessment of climate/landuse changes on the quantity and quality of water resources on temporal and spatial dimensions, and on internal renewable water resources for countries and watersheds across the globe
  • Drought and flood analysis

    Drought/flood analysis:

    Extreme events such as droughts and floods have affected the globe since the dawn of time. 2w2e provides a variety of information detailing these events categorized by analyzing type and frequency of these events.
  • Dam operation optimization

    Dam operation optimization:

    Operation of dams plays an important role on the improvement of water quality and quantity on one hand and on increasing of the income of society on the other hand. 2w2e provides necessary tools and frameworks for dam operation optimization


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 question as precisely as possible ans 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