Observations of water vapor within a mid-tropospheric smoke plume using ground-based microwave radiometry
Darren R. Clabo
Program in Atmospheric and Environmental Sciences, South Dakota School of Mines and Technology, Rapid City, 57701, USA
Received: 22 Feb 2016 – Accepted for review: 01 Apr 2016 – Discussion started: 12 Apr 2016
Abstract. This study presents an analysis of the water vapor mixing ratio contained within multiple mid-tropospheric smoke plumes as diagnosed by a ground-based passive microwave radiometer. Measurements from the radiometer were compared to smoke opacity as diagnosed from visible satellite imagery on three different days: 12, 16, and 20 August 2013. It was found that the water vapor mixing ratio within the smoke plume could be as much as 20–250 % higher than the mixing ratio within the ambient, non-smoke environmental air. Significant intra-smoke plume variability also existed and the mixing ratio was found to be higher (lower) in more optically thick (thin) areas of the plume. This study demonstrates that a radiometer is valuable tool that can be used to remotely measure the water vapor content within smoke plumes.
Clabo, D. R.: Observations of water vapor within a mid-tropospheric smoke plume using ground-based microwave radiometry, Atmos. Meas. Tech. Discuss., doi:10.5194/amt-2016-58, in review, 2016.