IEM Daily Feature
Wednesday, 09 July 2008

Increasing influence of plants

Posted: 09 Jul 2008 07:27 AM

The featured chart is a timeseries of observed dew point temperatures from the Des Moines Airport for this year and last. The overall trend is for increasing dew points thanks in part to growing crops and warmer weather. You will also notice less variability as summer passes, since the crops are a large water source for the atmosphere in the summer as their roots mine out available soil water.

Voting:
Good = 18
Bad = 7