geocat.comp.crop.saturation_vapor_pressure_slope(temperature, tfill=nan)

Compute the slope [kPa/C] of saturation vapor pressure curve as described in the Food and Agriculture Organization (FAO) Irrigation and Drainage Paper 56 entitled:

Crop evapotranspiration - Guidelines for computing crop water requirement. Specifically, see equation 13 of Chapter 3.


svp_slope – The computed slopes of the saturation vapor pressure curve. Will be the same shape as temperature.

Return type

numpy.ndarray, xarray.DataArray


>>> import numpy as np
>>> from geocat.comp import saturation_vapor_pressure_slope
>>> temp = np.array([50, 60, 70])
>>> saturation_vapor_pressure_slope(temp)
array([0.08224261, 0.11322096, 0.153595  ])

See also

Related GeoCAT Functions: actual_saturation_vapor_pressure, saturation_vapor_pressure_slope

Related NCL Functions: satvpr_temp_fao56