Dear all,
I am trying to compute Evapotranspiration (Eto)
According to instructions it is that the three components of the total ETo are as follows:
- variable "Evaporation from bare soil" ,
- variable "Evaporation from open water surfaces excluding oceans,
- variable "Evaporation from vegetation transpiration",
So, to compute ETo I am adding the 3 components.
I have a mix of negative and positive values, and I thought ETo should be 0 - 1
Am I missing something
Would appreciate a reply asap
Many Thanks for the attention
Kind Regards
Joana
5 Comments
Joseph Janssen
I am having similar issues with the Total Evaporation variable.
Joseph Janssen
From documentation of Evaporation: "The ECMWF Integrated Forecasting System convention is that downward fluxes are positive. Therefore, negative values indicate evaporation and positive values indicate condensation."
emmanuel kamla fotsing
Dear all,
I would like to know how to calculate Potential Evapotranspiration from the variables "Evaporation from bare soil" ,
"Evaporation from open water surfaces excluding oceans, and "Evaporation from vegetation transpiration"? Does this way of calculating potential evapotranspiration coincide with the one given by Penman-Monteith? And finally, how to calculate the actual or current evapotranspiration?
Kind regards
Emmanuel.
Michela Giusti
Hi,
please have a look at the following link for details:
ERA5-Land: data documentation#Guidelines
Regards
Michela
Aymn Elhaddad
Hi,
I am trying to find the difference in the calculation approach of the different era5 evaporation products , specifically products id 182 and 260259.
Best.