The forest hydrology model was developed as a means to quantify thermal and hydrological conditions and flows on a multi-year daily basis for forest sites and watersheds. The model uses daily precipitation (snowfall and rain, in cm) and temperature along with soil and catchment characteristics (latitude, altitude, slope, area, soil depth, etc…) to predict various aspects of pre- and post-harvest forest hydrology and nutrient cycling in a non-spatial trickle-down mode. Applications deal with a wide range of soil and climate conditions (arctic to tropical).
ForHyM is formulated in STELLA, a computer modeling software. ForHyM receives its input (daily weather and soil / forest / watershed conditions) from a second interface (Excel) through dynamic linkage. This interface also contains Macros (i) to convert the continuous stream of daily weather into STELLA-ready format, (ii) to determine daily net radiation based on latitude, altitude, slope and aspect.
ForHyM will be available for public use, online, in the near future. If you have questions relating to the model or are interested in using ForHyM, please contact us. This will enable the center to keep in touch with those that use the model and provide assistance in the future. At the moment a blank excel interface is available to organize data inputs for future use with the online model.
(Excel – 11MB)
- M.-F. Jutras, P.A. Arp. 2013. Role of hydraulic conductivity uncertainties in modeling water flow through forest watersheds, in: Rodrigues da Silva, V. (Ed.), Hydraulic Conductivity. InTech. pp. 33-4.
- M.-F. Jutras, P.A. Arp. 2011. Determination of hydraulic conductivity from soil characteristics and its application for modelling stream discharge in forest catchments. Hydraulic Conductivity – Issues, Determination and Applications. Chapter 10, pp. 189-202.ISBN: 978-953-307-288-3
- V. Balland, J.A.P Pollacco, P.A. Arp. Modeling soil hydraulic properties for a wide range of soil conditions. Ecological Modelling. 2008. Volume 219, Issue 3-4, Pages 300-316.
- D. Houle, L. Duchesne, R. Ouimet, R. Paquin, F.-R. Meng, P.A. Arp. Evaluation of the ForHyM2 model for prediction of hydrological fluxes and soil temperature at the Lake Clair Watershed (Duchesnay, Quebec) Forest Ecology and Management. 2002. Volume 159, Issue 3, Pages 249-260.
- S. Yanni, K. Keys, T.A. Clair, P.A. Arp. Modelling hydrological conditions in the maritime forest region of southwestern Nova Scotia. Hydrological Processes. 2000. Volume 14, Pages 195-214.
- B. L. Kurylyk, K. T.B MacQuarrie, C. I. Voss. 2014. Climage change impacts on the temperature and magnitude of groundwater discharge from shallow, unconfined aquifers. Water Resources Research. 50, doi:10.1002/2013WR014588.
- B. L. Kurylyk, C. P.-A. Bourque, K. T. B. 2013. Potential surface temperature and shallow groundwater temperature response to climate change: an example from a small forested catchment in east-central New Brunswick (Canada). Hydrology and Earth System Sciences. 17: 2701-2716.
- Marie-France Jutras. 2012. Calibrating hydraulic conductivity for modeling stream discharge for select forest catchments across Canada
- Xinyan Chi. 2008. Hydrogeological assessment of stream water in forested watershed: temperature, dissolved oxygen, pH and electrical conductivity.
- Matthew Steeves. 2004. Pre- and post-harvest groundwater temperatures, and levels, in upland forest catchments in northern New Brunswick.
- Vincent Balland. 2002. Hydrogeologic watershed modeling with special focus on snow accumulation and snowmelt including retention and release of major ions.
- Shelagh Yanni. 1996. Hydrogeochemical assessment of water in forested watersheds at Kejimkujik National Park: discharge rates, chemical composition, and ion fluxes.