Empirical Line Parameters of H216O near 0.94 μm: Positions, Intensities and Air-Broadening Coefficients

Brown, Linda R.; Toth, R. A.; Dulick, M.

doi:10.1006/jmsp.2002.8515

Cited by 61 publications

(34 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Fig. 9 illustrates this comparison for the common lines in the 011-00, 030-000 and 110-000 bands with DK a ¼ 0, 71 drawn vs. K m and J m as in [64]. Another set of values focusing on stronger lines in the restricted region 5000-5600 cm À1 [61] is also compared in the same figure.…”

Section: Self-broadening Parametersmentioning

confidence: 98%

Fourier transform measurements of water vapor line parameters in the 4200–6600cm−1 region

Jenouvrier

Daumont

Régalia-Jarlot

et al. 2007

Journal of Quantitative Spectroscopy and Radiative Transfer

126

115

View full text Add to dashboard Cite

New high-resolution water vapor absorption spectra were obtained at room temperature in the 4200-6600 cm À1 spectral region by combining Fourier transform spectrometers (FTS) with single and multiple reflection cells. With absorption paths from 0.3 to 1800 m in pure and air diluted water vapor, accurate measurements of about 10400 lines in an intensity range from 10 À29 to 10 À19 cm/molecule have been performed. Positions, intensities, self-and air-broadening coefficients and air-induced shifts were determined for the H 2 16 O, H 2 17 O, H 2 18 O and HDO isotopologues. The rovibrational assignment of the observed lines was performed with the use of global variational predictions and allowed the identification of several new energy levels. One major contribution of this work consists of the identification of 3280 new weak lines. A very close agreement between the new measured parameters and those listed in the database is reported as well as between the observations and the most recent variational calculations for the positions and the intensities. The present parameters provide an extended and homogeneous data set for water vapor, which is shown to significantly improve the databases for atmospheric applications, especially in the transmission windows on both sides of the band centered at 5400 cm À1 .

show abstract

Section: Self-broadening Parametersmentioning

confidence: 98%

Fourier transform measurements of water vapor line parameters in the 4200–6600cm−1 region

Jenouvrier

Daumont

Régalia-Jarlot

et al. 2007

Journal of Quantitative Spectroscopy and Radiative Transfer

126

115

View full text Add to dashboard Cite

show abstract

“…The water vapor absorption band is relatively weak in the stratosphere and the peak absorption for the band including the interfering species is only about 1% for a limb observation with a tangent altitude near the tropopause. We use the water vapor line parameters provided by Brown et al (2002). Prior to launch, the expected SAGE III instrument measurement capability suggested that the water vapor mixing ratio accuracy could be as good as 3% to 4%.…”

Section: Water Vapormentioning

confidence: 99%

An evaluation of the SAGE III version 4 aerosol extinction coefficient and water vapor data products

et al. 2010

View full text Add to dashboard Cite

Abstract. Herein, we provide an assessment of the data quality of Stratospheric Aerosol and Gas Experiment (SAGE III) Version 4 aerosol extinction coefficient and water vapor data products. The evaluation is based on comparisons with data from four instruments: SAGE II, the Polar Ozone and Aerosol Measurement (POAM III), the Halogen Occultation Experiment (HALOE), and the Microwave Limb Sounder (MLS). Since only about half of the SAGE III channels have a direct comparison with measurements by other instruments, we have employed some empirical techniques to evaluate measurements at some wavelengths. We find that the aerosol extinction coefficient measurements at 449, 520, 755, 869, and 1021 nm are reliable with accuracies and precisions on the order of 10% in the mission's primary aerosol target range of 15 to 25 km. We also believe this to be true of the aerosol measurements at 1545 nm though we cannot exclude some positive bias below 15 km. We recommend use of the 385 nm measurements above 16 km where the accuracy is on par with other aerosol channels. The 601 nm measurement is much noisier (∼20%) than other channels and we suggest caution in the use of these data. We believe that the 676 nm data are clearly defective particularly above 20 km (accuracy as poor as 50%) and the precision is also low (∼30%). We suggest excluding this channel under most circumstances. The SAGE III Version 4 water vapor data product appears to be high quality and is recommended for science applications in the stratosphere below 45 km. In this altitude range, the mean differences with all four corroborative data sets are no bigger than 15% and often less than 10% with exceptional agreement with POAM III and MLS. Above 45 km, it seems likely that SAGE III water vapor values are increasingly too large and should be used cautiously or avoided. We believe that SAGE III meets its preflight goal Correspondence to: L. W. Thomason (l.w.thomason@nasa.gov) of 15% accuracy and 10% precision between 15 and 45 km. SAGE III water vapor data does not appear to be affected by aerosol loading in the stratosphere.

show abstract

“…However, any data attributed to Brown et al [24] that were in HITRAN2004 have been retained. Analogously, the 14500-to 26000-cm -1 region has been updated using the work of Tolchenov et al [25] replacing the data from Coheur et al [26] in HITRAN2004.…”

Section: Introductionmentioning

confidence: 99%

The HITRAN 2008 molecular spectroscopic database

Rothman

Gordon

Barbé

et al. 2009

Journal of Quantitative Spectroscopy and Radiative Transfer

Self Cite

3,330

2,123

View full text Add to dashboard Cite

Empirical Line Parameters of H216O near 0.94 μm: Positions, Intensities and Air-Broadening Coefficients

Cited by 61 publications

References 32 publications

Fourier transform measurements of water vapor line parameters in the 4200–6600cm−1 region

Fourier transform measurements of water vapor line parameters in the 4200–6600cm−1 region

An evaluation of the SAGE III version 4 aerosol extinction coefficient and water vapor data products

The HITRAN 2008 molecular spectroscopic database

Contact Info

Product

Resources

About