Temperature dependence of the IR water-vapor absorption

1984 ◽  
Vol 5 (4) ◽  
pp. 547-558 ◽  
Author(s):  
J. Hinderling ◽  
P. Meyer ◽  
M. W. Sigrist
Keyword(s):  
Water Vapor ◽  
Temperature Dependence ◽  
Water Vapor Absorption ◽  
Vapor Absorption

An intercomparison of measured pressure-broadening and pressure-shifting parameters of water vapor

2004 ◽  
Vol 82 (6) ◽  
pp. 1013-1027 ◽  
Author(s):  
Robert R Gamache ◽  
Jean-Michel Hartmann
Keyword(s):  
Remote Sensing ◽  
Water Vapor ◽  
Temperature Dependence ◽  
Experimental Results ◽  
Data Sets ◽  
Pressure Broadening ◽  
Water Vapor Absorption ◽  
Quantum Numbers ◽  
Vapor Absorption ◽  
Measured Pressure

The present work is an intercomparison of experimental results on the pressure broadening and pressure shifting of water vapor absorption lines. The work focuses on application to the Earth's atmosphere; hence measurements of nitrogen, oxygen, air, and H2O as the buffer, or perturbing gas, were considered. The literature was searched and over 100 papers found. The data, measured half-widths, their temperature dependence, and the line shifts, were taken and databases created for each perturbing gas. The databases were reordered, grouping data for rovibrational transitions, and intercomparisons of the measurements made. Trends in the data, relationships between the data sets, and dependences on temperature and quantum numbers were investigated. The data were averaged and an estimated uncertainty determined. The averaged data sets are evaluated with respect to the need of the spectroscopic and remote sensing communities. Based on these studies, recommendations for new measurements are made.Key words: water vapor, half-widths, line shifts, temperature dependence of half-width.

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