aero_resist: Aerodynamic resistance
In WDNR-Water-Use/CSLSevap: Evapo(transpi)ration Calculations

Description Usage Arguments Value References

Calculates the aerodynamic resistance (s/m) over a lake as defined by Calder and Neal (1984, pg. 93) and McJannet et al. (2008, Appendix B, Equation 10), and as presented in McMahon et al. (2013) Equation S11.23.

1	aero_resist(uz, wind_z, z0, A, lake_z, rho_a = 1.2, ca = 0.001013)

`uz`	wind speed at wind_z height (m/s)
`wind_z`	height at which `uz` is measured (m)
`z0`	aerodynamic roughness of land cover at measurement site (m)
`A`	surface area of the lake (km^2)
`lake_z`	elevation of lake above mean sea level (m)
`rho_a`	density of the air (kg/m^3), defaults to 1.20 kg/m^3 at 20 deg C
`ca`	specific heat of the air (MJ/kg/K), defaults to 0.001013 MJ/kg/K

`ra`	aerodynamic resistance (s/m)

McMahon, T. A., Peel, M. C., Lowe, L., Srikanthan, R., and McVicar, T. R. (2013). Estimating actual, potential, reference crop and pan evaporation using standard meteorological data: a pragmatic synthesis, Hydrol. Earth Syst. Sci., 17, 1331–1363. https://doi.org/10.5194/hess-17-1331-2013.

McJannet, D. L., Webster, I. T., Stenson, M. P., and Sherman, B.S. (2008). Estimating open water evaporation for the Murray-Darling Basin. A report to the Australian Government from the CSIRO Murray-Darling Basin Sustainable Yields Project, CSIRO, Australia, 50 pp. Retrieved from http://www.clw.csiro.au/publications/waterforahealthycountry/mdbsy/technical/U-OpenWaterEvaporation.pdf.

WDNR-Water-Use/CSLSevap documentation built on April 9, 2021, 1:35 a.m.