Climate-Relevant Gas Absorption Properties from AWARE and Other ARM Spectral Measurements (Final Report)

Technical Report · Tue Dec 14 04:00:00 EST 2021

DOI:https://doi.org/10.2172/1835599· OSTI ID:1835599

Mlawer, Eli ^[1]; Mascio, Jeana ^[2]; Turner, David ^[3]; Payne, Vivienne ^[4]

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1. Atmospheric and Environmental Research, Inc., Lexington, MA (United States); Atmospheric and Environmental Research
2. Atmospheric and Environmental Research, Inc., Lexington, MA (United States)
3. National Oceanic and Atmospheric Administration (NOAA), Boulder, CO (United States). Earth System Research Lab.
4. California Institute of Technology (CalTech), Pasadena, CA (United States). Jet Propulsion Lab. (JPL)

The objective of this project has been to use measurements from the Atmospheric Emitted Radiance Interferometer (AERI) deployed at ARM sites to improve our knowledge of uncertain infrared spectroscopic parameters of importance to climate, remote sensing, and data assimilation. A primary focus has been the water vapor continuum in the infrared atmospheric window. Radiation codes used to predict climate and weather base their representation of the water vapor continuum in this window on the MT_CKD model, but in this spectral region the MT_CKD water vapor continuum absorption coefficients were derived almost two decades ago by an analysis of AERI measurements for conditions with a limited range of precipitable water vapor (PWV) and temperature values, leading to uncertainty in the derived coefficients. This project has included a new, comprehensive analysis of all aspects of the water vapor continuum in the atmospheric window -- the self continuum, the foreign continuum, and the self continuum temperature dependence, all resolved spectrally. Having a wide range of PWV amounts and temperatures from deployments of the ARM Mobile Facility for GoAmazon as well as the more than a decade of AERI measurements at SGP has provided an appropriate foundation for such a comprehensive analysis.

• Research Organization: Verisk Atmospheric and Environmental Research, Lexington, MA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Biological and Environmental Research (BER). Earth and Environmental Systems Science Division
• DOE Contract Number: SC0018296
• OSTI ID: 1835599
• Report Number(s): DOE-AER-0018296
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
climate
remote sensing
spectroscopic
water vapor continuum