Model help:TopoFlow-Meteorology

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The CSDMS Help System

TopoFlow-Meteorology

~3lines that describe the module

Model introduction

This component reads a variety of variables for the atmosphere and for the land surface from input files or as simple scalars. It then computes many additional variables, such as vapor pressure, eair, and net shortwave (solar) radiation, QnSW, using built-in shortwave radiation and longwave radiation calculators that are based on celestial mechanics and widely-used empirical relationships. These additional variables are needed by the Snowmelt → Energy Balance and Evaporation → Energy Balance components. Direct, diffuse and back-scattered radiation fluxes are all modeled. Properties of the atmosphere (e.g. precipitation rate, P, air temperature, Tair, relative humidity, RH, and dust attenuation, γ), are used as well as surface/topographic properties (e.g. slope angle, aspect angle and surface albedo. The approach used here closely follows the one outlined in Appendix E of Dingman (2002)[1]. However, instantaneous vs. day-integrated radiation fluxes are used and the optical air mass is modeled using the widely used method of Kasten and Young (1989)[2].

Model parameters

Parameter Description Unit
Components status
Input directory
Output directory
Site prefix
Case prefix
Number of steps
Time step
ρ H2O
ρ H2O
Cp air type
ρ air type:
ρ air
Precipitation rates type
Precipitation rates
PRECIPITATION ONLY toggle
Parameter Description Unit
First parameter Description parameter [Units]
Parameter Description Unit
First parameter Description parameter [Units]
Parameter Description Unit
First parameter Description parameter [Units]
Parameter Description Unit
First parameter Description parameter [Units]

Uses ports

This will be something that the CSDMS facility will add

Provides ports

This will be something that the CSDMS facility will add

Main equations

A list of the key equations. HTML format is supported; latex format will be supported in the future

Notes

Any notes, comments, you want to share with the user

Numerical scheme


Examples

An example run with input parameters, BLD files, as well as a figure / movie of the output

Follow the next steps to include images / movies of simulations:

See also: Help:Images or Help:Movies

Developer(s)

Name of the module developer(s)

References

</references>

Links

Any link, eg. to the model questionnaire, etc.

  1. Dingman, S.L (2002) Physical Hydrology, 2nd ed., Prentice Hall, New Jersey. (see Appendix E)
  2. Kasten and Young (1989) (for the optical air mass equation)