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How to calculate evapotranspiration hourly_mm in CR1000


JCaycho Mar 10, 2010 01:21 AM

Please

I could help or send the program or calculation of evapotranspiration (Eto in *. CR1) time in mm with a net radiation sensor in the CR1000 logger. (WAS = mps, Temp = C, Hr =%, NR = W/m2).

I only found this schedule for the CR10X, but not for the CR1000, there is some way to make the steps in the calculation of DLD in CR1 file.

Greetings,


jtrauntvein Mar 10, 2010 03:45 AM

Look up the ETsz() instruction in the CRBasic help or in the CR1000 manual.


JCaycho Mar 13, 2010 02:39 AM

Thank you,

But I can directly replace the value of solar radiation (Rs) for net radiation (NR), or you have to add any additional conversion or formula.

If the initial formula is:

ETsz (Temp, RH, WindSpeed, SolarRad (MJ/m2), 0,0, Altitude, Zw, 0, FP2, False)

It may look like:

ETsz (Temp, RH, WindSpeed, NetRadiation (W/m2), 0,0, Altitude, Zw, 0, FP2, False)

On the other hand as I remove a setsecurity do not know, I have problems to reconfigure my CR1000. There is way to format the code requested by the logger?.

I thank in advance any help you can give ..

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