G-band FMCW Radar for Humidity Profiling Inside Boundary Layer Clouds

Roy, Richard J.; Cooper, Ken B.; Lebsock, Matthew; Millán, Luis; Siles, Jose; Monje, Raquel

G-band FMCW Radar for Humidity Profiling Inside Boundary Layer Clouds

Roy, Richard J.; Cooper, Ken B.; Lebsock, Matthew; Millán, Luis; Siles, Jose; Monje, Raquel

URI: http://hdl.handle.net/2014/48040

Date: 2018-05-22

Keywords: millimeter-wave radar; FMCW; differential absorption radar; humidity sounding

Citation: 11th Global Symposium on Millimeter Waves (GSMM) 2018, Boulder, Colorado, May 22-24, 2018

Abstract:

We are developing a G-band FMCW radar for remote sensing of vertical water vapor proﬁles and total column water vapor. The radar utilizes the frequency-dependent absorption near the 183 GHz water absorption line to obtain a differential signal from which we can derive range-resolved humidity measurements. This proof-of-concept instrument will eventually be tested from an airborne platform. In this report, we discuss recent measurements and a humidity proﬁle retrieval algorithm based on an absorption line shape ﬁtting model

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