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Here is a plot of these data, along with a 1:1 line and a linear regression to all but the first sample (when the EC-5 might not have been settled in).  The regression line has an intercept of 9.9% and a slope of 0.34.  It   Also shown are the 3 gravimetric samples at far (f), near (thumbs down), and flr (r).   It was my intent that this slope would be applied to all of the METCRAXII Qsoil measurements, and to have the offset computed from the 1 or 2 gravimetric samples sample at each site.

With this philosophy, the adjustments are:

actual = (far + 2.3)/0.34

actual = (near - 4.4)/0.34

actual = (flr + 5.8)/0.34

actual = (base - 9.9)/0.34

The project measurements agree with these numbers reasonably well.  However, near still goes negative at times, far goes negative one night, and flr goes over 61% during one rain event.  Thus, I think that the 0.34 slope model above is not correct.  

Subtracting only 7.6 (rather than 9.6) from flr makes the agreement quite good.  Next, would be to check Cvsoil to see if sensor gains are consistent?

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