can I use long-term ET0(reference ET) instead of PET?

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hashi
Posts: 1
Joined: Mon Nov 04, 2019 1:09 pm
Location: Belgium

can I use long-term ET0(reference ET) instead of PET?

Post by hashi » Mon Nov 04, 2019 2:26 pm

hello,

I want to simulate the trend of soil salinity for about 50 years.
Due to the missing value of meteorological data, I have easily extracted the 50years-long sequence data of reference evapotranspiration (ET0,
underlying surface is near 12cm grass), precipitation, and LAI from the Google Earth Engine platform. I have obtained reference evapotranspiration data (ET0) from 50 years ago to the present, and the underlying surface is close to 12cm of grass.

But unfortunately, the long-term(50 years) sequence of PET is not obtained from the cloud platform, except MOD16 PET since 2000. In HYDRUS-1d, it is needed to input potential evapotranspiration (PET, sufficient water supply) and LAI to divide E and T. Could I use reference evapotranspiration (ET0) instead of PET as input?

thank you
best regards

Jirka
Posts: 4798
Joined: Sat Mar 16, 2002 3:47 pm
Location: USA
Location: Riverside, CA

Re: can I use long-term ET0(reference ET) instead of PET?

Post by Jirka » Mon Nov 04, 2019 5:12 pm

I think you can. J

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