11 Sep 2020
11 Sep 2020
Spectroscopic Imaging of Sub-Kilometer Spatial Structure in Lower Tropospheric Water Vapor
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91103, USA
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91103, USA
Abstract. Understanding the subgrid spatial variability of water vapor is important for parameterizing and simulating cloud processes in General Circulation Models (GCMs). This study maps sub-kilometer spatial structures in total atmospheric column water vapor with Visible to Shortwave Infrared (VSWIR) imaging spectroscopy. We describe our inversion approach and validate its accuracy with coincident measurements by airborne imaging spectrometers and the AERONET ground-based observation network. Next, data from NASA’s AVIRIS-NG spectrometer enables the highest resolution measurement to date of water vapor’s spatial variability and scaling properties. We find second order structure function scaling exponents consistent with prior studies of convective atmospheres. Finally, we conclude by discussing the implications of these measurements and paths toward future campaigns to build upon these results.
David R. Thompson et al.


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RC1: 'Spectroscopic Imaging of Sub-Kilometer Spatial Structure in Lower Tropospheric Water Vapor', Anonymous Referee #1, 21 Sep 2020
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AC1: 'Reply on RC1', David R. Thompson, 13 Jan 2021
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AC1: 'Reply on RC1', David R. Thompson, 13 Jan 2021
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RC2: 'Review David K. Adams', David Adams, 16 Dec 2020
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AC2: 'Reply on RC2', David R. Thompson, 13 Jan 2021
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AC2: 'Reply on RC2', David R. Thompson, 13 Jan 2021


-
RC1: 'Spectroscopic Imaging of Sub-Kilometer Spatial Structure in Lower Tropospheric Water Vapor', Anonymous Referee #1, 21 Sep 2020
-
AC1: 'Reply on RC1', David R. Thompson, 13 Jan 2021
-
AC1: 'Reply on RC1', David R. Thompson, 13 Jan 2021
-
RC2: 'Review David K. Adams', David Adams, 16 Dec 2020
-
AC2: 'Reply on RC2', David R. Thompson, 13 Jan 2021
-
AC2: 'Reply on RC2', David R. Thompson, 13 Jan 2021
David R. Thompson et al.
David R. Thompson et al.
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