cal_Kcmid_for_singleKc {simET} | R Documentation |
Crop coefficient for the mid-season stage
Description
Typical values for the crop coefficient at the end of the late season growth stage, Kc end, are listed in Table 12 for various agricultural crops.For specific adjustment in climates where RHmin differs from 45 % or where u2 is larger or smaller than 2.0 m/s.
Usage
cal_Kcmid_for_singleKc(RHmine, u2e, Ktable, he)
Arguments
RHmine |
mean value for daily minimum relative humidity during the mid-season growth stage , for 20 <= RHmine <= 80 |
u2e |
mean value for daily wind speed at 2 m height over grass during the mid- season growth stage (mls), for 1 <= u2e <= 6 |
Ktable |
value for Kc mid taken from Table 12 |
he |
mean plant height during the mid-season stage [m] for 0.1 m < h < 10 m |
Value
A value for Kcmid value
References
Allen, R. G., Pereira, L. S., Raes, D., & Smith, M. FAO Irrigation and drainage paper No. 56. Rome: Food and Agriculture Organization of the United Nations, 1998.