E_BlaneyCriddle: Lake evaporation (Blaney-Criddle method)
In jmerc13/LakeIsodrology: Lake isotope hydrology

Description Usage Arguments Details

E_BlaneyCriddle returns the daily rate of evaporation, E (mm/day), using data related to temperature and day length.

1	E_BlaneyCriddle(Ta, D, Da, a = 0.0173, b = 0.314, conv = 25.4)

`Ta`	Air temperature, T_{a} (C).
`D`	Hours of daylight, D (hrs).
`Da`	Maximum annual hours of daylight, D_{a} (hrs).
`a`	An emperical coefficient modifying the influence of temperature. Assumed 0.0173.
`b`	Also an emperical coefficient modifying the influence of air temperature. Assumed 0.314
`conv`	A multiplier that converts base units to mm/day. It is assumed to be 25.4, but will need to be adjust for alternative units.

Evaporation is determined by (Blaney and Criddle 1962, McGuinness and Bordne 1972, Rosenberry et al. 2007):

E = (a T_{a} - b) \cdot T_{a} \cdot \frac{D}{D_{a}} \cdot c

Blaney H, Criddle W. 1962. Determining consumptive use and irrigation water requirements. US Department of Agriculture Technical Bulletin 1275.

McGuinness JL, Bordne EF. 1972. A comparison of lysimeter-derived potential evapotranspiration with computed values. Technical Bulletin 1452, US Department of Agriculture Agricultural Research Service, Washington, DC.

Rosenberry DO, Winter TC, Buso DC, Likens GE. 2007. Comparison of 15 evaporation methods applied to a small mountain lake in the northeastern USA. Journal of Hydrology 340 (3–4): 149–166. DOI: 10.1016/j.jhydrol.2007.03.018.

jmerc13/LakeIsodrology documentation built on May 5, 2019, 5:52 p.m.