Even in dry soil relative humidity of the air is near saturation so you won't see any biologically meaningful differences.
I've used temperature iButtons for a number of years in vernal pools to measure water depth and up until 2.5 years ago they were pretty waterproof and robust. That has changed and I seal them in liquid rubber which is easy to peel off once a year for downloading data. They are no longer robust even when dry and my failure rate has gone up from less than 5% to more than 15%. John Sent from my iPhone On Jun 7, 2012, at 12:08 PM, Emily Atkinson <[email protected]> wrote: > Hi, > > Has anyone used an iButton temperature/humidity logger specifically for > soils? I'm looking into installing some at my field sites. Any > recommendations/advice would be greatly appreciated! Thanks! > > -- > Emily E. Atkinson > Department of Geography > University of Wisconsin-Madison > Email: [email protected] > Lab group: marinspiotta.com
