Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Errors in the simultaneous determination of a series of atmospheric minor gases from ground-based measurements of thermal IR radiation. / Virolainen, Ya A.; Polyakov, A. V.; Timofeev, Yu M.
в: Izvestiya - Atmospheric and Ocean Physics, Том 35, № 2, 01.03.1999, стр. 195-200.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Errors in the simultaneous determination of a series of atmospheric minor gases from ground-based measurements of thermal IR radiation
AU - Virolainen, Ya A.
AU - Polyakov, A. V.
AU - Timofeev, Yu M.
PY - 1999/3/1
Y1 - 1999/3/1
N2 - A method is studied for simultaneously determining the vertical profiles of a series of atmospheric minor gases (H2O, O3, N2O, CH4, CFC-11, CFC-12, and CO) on the basis of ground-based measurements of downward thermal radiation in the range from 3 to 17 μm with a spectral resolution of 0.4 cm-1. It is shown that the measurements performed under clear-sky conditions make it possible to determine the total contents of minor gases with errors from 1-2% (for H2O) to 11.5% (for CO). Spectral measurements of downward radiation can also be used to determine gas contents within several atmospheric layers. The corresponding errors in gas content determination are as follows: 1.5-2.5 and 8.5-14.5% for water content in the lower and middle troposphere, respectively; 5-7 and 3-5% for ozone in the troposphere and stratosphere, respectively; and 4-9% for methane in the boundary layer and free atmosphere. For the atmosphere of a low water content, a spectralangular measurement scheme makes it possible to reduce the errors in the total content of chlorofluorocarbons to 3.7 and 4.4% for CFC-11 and CFC-12, respectively.
AB - A method is studied for simultaneously determining the vertical profiles of a series of atmospheric minor gases (H2O, O3, N2O, CH4, CFC-11, CFC-12, and CO) on the basis of ground-based measurements of downward thermal radiation in the range from 3 to 17 μm with a spectral resolution of 0.4 cm-1. It is shown that the measurements performed under clear-sky conditions make it possible to determine the total contents of minor gases with errors from 1-2% (for H2O) to 11.5% (for CO). Spectral measurements of downward radiation can also be used to determine gas contents within several atmospheric layers. The corresponding errors in gas content determination are as follows: 1.5-2.5 and 8.5-14.5% for water content in the lower and middle troposphere, respectively; 5-7 and 3-5% for ozone in the troposphere and stratosphere, respectively; and 4-9% for methane in the boundary layer and free atmosphere. For the atmosphere of a low water content, a spectralangular measurement scheme makes it possible to reduce the errors in the total content of chlorofluorocarbons to 3.7 and 4.4% for CFC-11 and CFC-12, respectively.
UR - http://www.scopus.com/inward/record.url?scp=0032771173&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0032771173
VL - 35
SP - 195
EP - 200
JO - Izvestiya - Atmospheric and Oceanic Physics
JF - Izvestiya - Atmospheric and Oceanic Physics
SN - 0001-4338
IS - 2
ER -
ID: 36157400