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Titolo:
RETRIEVAL OF VERTICAL PROFILES OF OZONE FROM HIGH-RESOLUTION INFRAREDSOLAR SPECTRA AT RIKUBETSU, JAPAN
Autore:
NAKAJIMA H; LIU X; MURATA I; KONDA Y; MURCRAY FJ; KOIKE M; ZHAO Y; NAKANE H;
Indirizzi:
NATL INST ENVIRONM STUDIES,16-2 ONOGAWA IBARAKI OSAKA 305 JAPAN NAGOYA UNIV,SOLAR TERR ENVIRONM LAB AICHI 442 JAPAN UNIV DENVER,DEPT PHYS DENVER CO 80208
Titolo Testata:
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
fascicolo: D25, volume: 102, anno: 1997,
pagine: 29981 - 29990
Fonte:
ISI
Lingua:
ENG
Soggetto:
LASER HETERODYNE SPECTROMETER; ATMOSPHERE; MODEL;
Tipo documento:
Article
Natura:
Periodico
Citazioni:
17
Recensione:
Indirizzi per estratti:
Citazione:
H. Nakajima et al., "RETRIEVAL OF VERTICAL PROFILES OF OZONE FROM HIGH-RESOLUTION INFRAREDSOLAR SPECTRA AT RIKUBETSU, JAPAN", J GEO RES-A, 102(D25), 1997, pp. 29981-29990

Abstract

Vertical profiles of volume mixing ratios (VMRs) of O-3 were retrieved from high-resolution, infrared solar absorption spectra taken at Rikubetsu, Japan (43.5 degrees N), by a ground-based Fourier transform infrared spectrometer (FTIR). The VMR profile retrieval is based on an iterative inversion algorithm, which utilizes line-by-line, layer-by-layer calculations. Two different microwindow regions (1146 and 1163 cm(-1)) were used for the retrieval calculations. Eighty ozone vertical profiles were retrieved from the two spectral regions from 40 spectra and were compared with 17 ozonesonde measurements from a nearby station, Average differences between 18 and 34 km were less than +/-12% for both 1146 and 1163 cm(-1) retrievals. The standard deviation of the average differences between 18 and 34 km were less than 19% and 14% for respective windows. Effects of several different factors on errors of profile retrievals, such as initial guess, temperature profiles, and instrument line shape functions, were evaluated by numerical simulation. The estimated errors were extremely consistent with the observed errors between 18 and 34 km, suggesting that the FTIR was optically well adjusted. In general, retrieval of the O-3 profile gives VMRs in an accuracy better than 40% at 14 km, improving to 10-15% between 18 and 30 km, with precision of 30% and 20% for these altitude ranges, respectively.

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Documento generato il 01/04/20 alle ore 20:38:47