Documentation

CRHM (backbone hydrological model): Pomeroy, J. W., Gray, D. M., Brown, T., Hedstrom, N. R., Quinton, W. L., Granger, R. J., & Carey, S. K. (2007). The cold regions hydrological model: A platform for basing process representation and model structure on physical evidence. Hydrological Processes, 21(19), 2650–2667. https://doi.org/10.1002/hyp.6787

CRHM-WQ (Water Quality Modules, N and P): Costa, D., Pomeroy , J., Brown, T.,  Elliott, J., Baulch, H., Macrae, M. (under review). (Cold Regions Hydrological Model)

The water quality modules are:

  • WQ_pbsmSnobal: chemical transport with snow (e.g., accumulation, blowing snow, sublimation)

  • WQ_soil: chemical transport across the different vertical soil compartments

  • WQ_Netroute_M_D: chemical transport with runoff

  • WQ_Soil_BGC: biogeochemical cycling for N and P

The chemical species simulated are:
  • Nitrogen (N)

    1. Nitrate Nitrogen (NO3-N)

    2. Ammonia Nitrogen, (NH4-N)

    3. Dissolved Organic Nitrogen (DON)

    4. Labile N

    5. Refractry N

  • Phosporus (P)

    1. Soluble Reactive Phosphorus (SRP)

    2. Particulate P (PartP)

    3. Dissolved Organic Phosphorus (DON)

    4. Labile P

    5. Refractry P

Nutrient inputs allowed:

  • atmospheric deposition

  • plant residue

  • fertilizer

  • manure

Chemical Transformations or Uptake calculated:

  • Plant uptake

  • mineralization

  • nitrification

  • denitrification

  • degradation

  • dissolution

  • sorption-dissorption of P to sediment particles