Absorption by H2O and H2O-N2 mixtures at 153 GHz

Bauer, A.; Godon, M.; Carlier, Julien; Ma, Q.; Tipping, R. H.

doi:10.1016/0022-4073(93)90039-k

Cited by 23 publications

(12 citation statements)

References 61 publications

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“…Self-broadened (pure water vapor or quadratic with humidity) and foreign-broadened (mixture with air or linear with humidity) continuum coefficients C (in (dB km −1 )/(GHz kPa) 2 ), as in Rosenkranz (1998Rosenkranz ( , 1999. Symbols are field and laboratory data (filled blue diamonds are from Kuhn et al, 2002; open blue diamonds are from Godon et al, 1992and Bauer et al, 1993 green open circles are from Katkov et al, 1995; red squares are from Liebe, 1984 andLayton, 1987; black dots are from Koshelev et al, 2011; pink triangles are from Becker and Autler, 1946). Statistical uncertainty of individual points in each series is approximately equal to or less than the size of the points.…”

Section: Water Vapor Analysismentioning

confidence: 99%

A review of sources of systematic errors and uncertainties in observations and simulations at 183 GHz

et al. 2016

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Abstract. Several recent studies have observed systematic differences between measurements in the 183.31 GHz water vapor line by space-borne sounders and calculations using radiative transfer models, with inputs from either radiosondes (radiosonde observations, RAOBs) or short-range forecasts by numerical weather prediction (NWP) models. This paper discusses all the relevant categories of observation-based or model-based data, quantifies their uncertainties and separates biases that could be common to all causes from those attributable to a particular cause. Reference observations from radiosondes, Global Navigation Satellite System (GNSS) receivers, differential absorption lidar (DIAL) and Raman lidar are thus overviewed. Biases arising from their calibration procedures, NWP models and data assimilation, instrument biases and radiative transfer models (both the models themselves and the underlying spectroscopy) are presented and discussed. Although presently no single process in the comparisons seems capable of explaining the observed structure of bias, recommendations are made in order to better understand the causes.

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Section: Water Vapor Analysismentioning

confidence: 99%

A review of sources of systematic errors and uncertainties in observations and simulations at 183 GHz

et al. 2016

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“…[12], but is linked to N in certain conditions (17). The use of this expression for absorption profiles involving a continuum remains empirical; however, continua produced by X-X collision-induced absorption are shown to follow this temperature-dependence law.…”

Section: Resultsmentioning

confidence: 93%

“…Argon, a monoatomic gas, was also selected as a mixing gas (19). Both H 2 O-CO 2 and H 2 O-Ar mixtures presented a continuum effect of different magnitude, which gave rise, with our previous data (1,15,17), to the hypothesis of possible weakly bound complexes (20).…”

Section: Introductionmentioning

confidence: 98%

“…Our experimental data for pure water vapor and an atmospheric mixture of nitrogen have been compared with some of these models (1,(15)(16)(17) and have disclosed restrictions and limits on some calculated continuums. To get more insight on the molecular processes involved and in the aim of a more general treatment of the line profile, we have undertaken studies with other collisional partners.…”

Section: Introductionmentioning

confidence: 99%

“…The frequency has been chosen to be the same as that of our previous experiments (1,15,17), 239.370 GHz. This frequency is in a region where the excess absorption was shown to be the largest with respect to that predicted by current lineshapes.…”

Section: Introductionmentioning

confidence: 99%

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The Continuum of Water Vapor Mixed with Methane: Absolute Absorption at 239 GHz and Linewidth Calculations

Godon

Bauer

Gamache

2000

Journal of Molecular Spectroscopy

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Molecular Line Parameters for the “MASTER” (Millimeter Wave Acquisitions for Stratosphere/Troposphere Exchange Research) Database

et al. 2005

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In order to investigate the upper troposphere/lower stratosphere (UTLS) region of the earth's atmosphere, ESA/ESTEC (European space agency) is considering the opportunity to develop the spaceborne limb sounding millimeter sensor "MASTER" (millimeter wave acquisitions for stratosphere/troposphere exchange research). This instrument is part of the "atmospheric composition explorer for chemistry and climate interactions" (ACECHEM) project. In addition, ESA/ESTEC is developing the "MARSCHALS" (millimeter-wave airborne receiver for spectroscopic characterization of atmospheric limb sounding) airborne instrument which will demonstrate the feasibility of MASTER. The present paper describes the line-by-line database which was generated in order to meet at best the needs of the MASTER (or MARSCHALS) instrument. The linelist involves line positions, line intensities, line broadening and line shift parameters in the 294-305, 316-325, 342-348, 497-506 and 624-626 GHz spectral microwindows. This database was first generated for the target molecules for MASTER (H 2 O, O 3 , N 2 O, CO, O 2 , HNO 3 , HCl, ClO, CH 3 Cl, BrO). In addition, ten additional molecules (SO 2 , NO 2 , OCS, H 2 CO, HOCl, HCN, H 2 O 2 , COF 2 , HO 2 and HOBr) had also to be considered in the database as "possible interfering species" for the retrieval of the target molecules of MASTER. The line parameters were derived, depending on their estimated accuracy, (i) from a combination of spectral parameters included in the JPL and HITRAN catalogs (ii) from data taken into the literature or (iii) using data obtained through experimental measurements (and/or) calculations performed during the present study.

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Absorption by H2O and H2O-N2 mixtures at 153 GHz

Cited by 23 publications

References 61 publications

A review of sources of systematic errors and uncertainties in observations and simulations at 183 GHz

A review of sources of systematic errors and uncertainties in observations and simulations at 183 GHz

The Continuum of Water Vapor Mixed with Methane: Absolute Absorption at 239 GHz and Linewidth Calculations

Molecular Line Parameters for the “MASTER” (Millimeter Wave Acquisitions for Stratosphere/Troposphere Exchange Research) Database

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Absorption by H2O and H2O-N2 mixtures at 153 GHz

Cited by 23 publications

References 61 publications

A review of sources of systematic errors and uncertainties in observations and simulations at 183 GHz

A review of sources of systematic errors and uncertainties in observations and simulations at 183 GHz

The Continuum of Water Vapor Mixed with Methane: Absolute Absorption at 239 GHz and Linewidth Calculations

Molecular Line Parameters for the “MASTER” (Millimeter Wave Acquisitions for Stratosphere/Troposphere Exchange Research) Database

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A review of sources of systematic errors and uncertainties in observations and simulations at 183 GHz

A review of sources of systematic errors and uncertainties in observations and simulations at 183 GHz