Wikipedia

Cold Regions Hydrological Modelling platform

The Cold Regions Hydrological Modelling (CRHM) Platform is a hydrological modelling program incorporating the seminal works of Don Gray, Raoul Granger, Pat Landine, and John Pomeroy, among others, in representing hydrological processes for small to mid-sized catchments in cold regions of the earth. Code and software development was carried out by University of Saskatchewan engineer, Tom Brown. Used extensively and supported by the University of Saskatchewan's Centre for Hydrology, CRHM has also been used in 57 Canadian and 31 organizations worldwide to build basin hydrology models. In Canada, the platform has been used to support hydrological predictions related to glacier and snow melt in the Canadian Rocky Mountains and western provinces. CRHM includes following components: Basin, Observation, Snow Transport, Interception, Radiation, Evaporation, Snowmelt, Infiltration, Soil Moisture Balance, Wetlands, Flow, Gravitational Snow Transport, Glacier Melt, and Freezing and Thawing Fronts Dynamics.[1][2][3]

Operation

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CRHM requires files (extension .obs) of high-frequency (preferably hourly) continuous time series of observed air temperature, wind speed, humidity, and precipitation. The R package CRHMr can be used to prepare these time series, including infilling missing values. CRHMr can also be used to post-process and plot CRHM outputs.

Other packages that can be used to acquire data for use by CRHM include MSCr which uses data from Meteorological Service of Canada files, Reanalysis, which creates .obs files from several types of reanalysis files, including ERA, WATCH and NARR, and WISKIr,[4] which uses data from a Wiski web server.

Research supported by CRHM

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CRHM has been used extensively in snow modelling and studies of the effects of climate change on cold regions headwater basins.[5] Results from use of the model have also been used in studies of agricultural practices,[6] changes in glaciers,[7] grasslands,[8] and boreal forests.[9]

References

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  1. ^ "CRHM: The Cold Regions Hydrological Model". Centre for Hydrology, University of Saskatechwan. Retrieved 10 October 2024.
  2. ^ "CRHM (Cold Regions Hydrological Model)". OpenGMS. 11 October 2024. Retrieved 11 October 2024.
  3. ^ "Hydrological Models". Changing Cold Regions Network. 11 October 2024. Retrieved 11 October 2024.
  4. ^ "Introducing WISKI". KISTERS. 11 October 2024. Retrieved 10 October 2024.
  5. ^ Pomeroy, John W.; Brown, Tom; Fang, X.; Shook, Kevin R.; Pradhananga, D.; Armstrong, R.; Harder, Phillip; Marsh, Chris; Costa, Diogo; Krough, S.A.; Aubrey-Wake, Caroline; Annand, Holly; Lawford, Peter; He, Zinhua; Kompanizare, M. (December 2022). "The cold regions hydrological modelling platform for hydrological diagnosis and prediction based on process understanding". Journal of Hydrology. 615. Bibcode:2022JHyd..61528711P. doi:10.1016/j.jhydrol.2022.128711 – via Elsevier Science Direct.{{cite journal}}: CS1 maint: date and year (link)
  6. ^ Cordeiro, Marcos R. C.; Liang, Kang; Wilson, Henry F.; Vanrobaeys, Jason; Lobb, David A.; Fang, Xing; Pomeroy, John W. (2022). "Simulating the hydrological impacts of land use conversion from annual crop to perennial forage in the Canadian Prairies using the Cold Regions Hydrological Modelling platform". Hydrology and Earth System Sciences. 26 (22): 5917. Bibcode:2022HESS...26.5917C. doi:10.5194/hess-26-5917-2022 – via European Geosciences Union.
  7. ^ Pradhananga, Dhiraj; Poweroy, John W. (May 2022). "Diagnosing changes in glacier hydrology from physical principles using a hydrological model with snow redistribution, sublimation, firnification and energy balance ablation algorithms". Journal of Hydrology. 608: 127545. Bibcode:2022JHyd..60827545P. doi:10.1016/j.jhydrol.2022.127545.
  8. ^ Spence, Christopher; He, Zhihua; Shook, Kevin R.; Mekonnen, Balew A.; Pomeroy, John W.; Whitfield, Colin J.; Wolfe, Jared D. (2022). "Assessing hydrological sensitivity of grassland basins in the Canadian Prairies to climate using a basin classification-based virtual modelling approach". Hydrology and Earth System Sciences. 26 (7): 1801–1819. Bibcode:2022HESS...26.1801S. doi:10.5194/hess-26-1801-2022.
  9. ^ He, Zhihua; Pomeroy, John W.; Fang, Xing; Peterson, Amber (October 2021). "Sensitivity analysis of hydrological processes to perturbed climate in a southern boreal forest basin". Journal of Hydrology. 601: 126706. Bibcode:2021JHyd..60126706H. doi:10.1016/j.jhydrol.2021.126706.
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