At the hydrological research unit have several different software and methods been designed to facilitate and enable our mission. Listed below are some of these tools. Please contact us if you want more information about the products.

HYPE code

The HYPE code is the core of our work at Hydrological Research. HYPE stands for Hydrological Predictions for the Environment and the HYPE code is a hydrological model code, developed at SMHI, for integrated simulation of flow and turnover of water and nutrients. It allows us to calculate the factors related to water resources and water quality, but also other hydrological information with very high spatial detail.

HYPE code is flexible and constantly evolving. This is a great advantage for us at the unit when we want to set up hydrological models in different parts of the worldwith very different access to information and for different purposes.

HYPE open source community

HYPE Open Source Community is an initiative that SMHI has taken to strengthen the international cooperation in hydrological modelling. The hypothesis is that this collaboration will result in better models and better code.
HYPE Open Source Community is open to anyone interested in hydrology, hydrological modeling and code development. We hope this can become a platform for international networking and knowledge sharing.


WHIST stands for "World Hydrological Input Set-Up Tool".
WHIST is our tool to extract information for hydrological models, including Hype Model, from different types of databases. WHIST is the core of the work with each new model set here at the Hydrological Research.


DBS stands for Distribution Based Scaling (of hydrometeorological variables) and is our tool to scale the data (from climate models and meteorological analysis products) by statistical methods from the grid (square) of arbitrary size, to the catchment area (polygon), which often covers a smaller area . During this process a bias correction is performed to improve the compatibility between the calculated and observed data. Statistical methods included in the tool are described in Yang et al. (2011). For more information please contact Jörgen Rosberg, Kean Foster or Wei Yang.

Web Map Services

Web Map services (WMS) have been developed for free downloading of simulated data from some of the HYPE model systems, S-HYPE, Balt-HYPE and E-HYPE. Data for download can be chosen by either specifying a subbasin ID or selecting areas from a map. The downloaded data will be shown in Excel.

Visualization technology

Visualization Technology makes it easier to see and understand very complex issues and relationships. Exciting work is underway to find new ways to illustrate our often very comprising research results in all sorts of contexts, such as in meetings with other researchers, policy makers, students or the public. SMHI cooperates among others with the Norrköping Visualization Center C with this technique.

Participatory modelling

Participatory modelling is a concept that can contribute to increased cooperation between various stakeholder groups and experts in the development of action plans. The methodology is based on that stakeholders, facilitated by models and various experts on relevant fields formulates a common view on present situation or impacts of a foreseen change of, e.g. climate (including its causes and consequences for various actors), and together formulates an action plan. Participants can also, e.g. arrange field monitoring campaigns of, e.g. water quality.

More models

In addition to HYPE SMHI develops and maintains other models and systems for various types of hydrological calculations. Examples of such models are HBV, HBV-NP, Biola and Coastal Zone model.