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Simulations of column-averaged CO2 and CH4 using the NIES TM with a hybrid sigma-isentropic (σ-θ) vertical coordinate

Belikov, D.; Maksyutov, S.; Sherlock, V.; Aoki, S.; Deutscher, N. M.; Dohe, S.; Griffith, D.; Kyro, E.; Morino, I.; Nakazawa, T.; Notholt, J.; Rettinger, M.; Schneider, M:; Sussmann, R.; Toon, G. C.; Wennberg, P. O.; Wunch, D.

Abstract:
We have developed an improved version of the National Institute for Environmental Studies (NIES) threedimensional chemical transport model (TM) designed for accurate tracer transport simulations in the stratosphere, using a hybrid sigma-isentropic (σ-θ) vertical coordinate that employs both terrain-following and isentropic parts switched smoothly around the tropopause. The air-ascending rate was derived from the effective heating rate and was used to simulate vertical motion in the isentropic part of the grid (above level 350 K), which was adjusted to fit to the observed age of the air in the stratosphere. Multi-annual simulations were conducted using the NIES TM to evaluate vertical profiles and dry-air column-averaged mole fractions of CO2 and CH4. Comparisons with balloon-borne observations over Sanriku (Japan) in 2000–2007 revealed that the tracer transport simulations in the upper troposphere and lower stratosphere are performed with accuracies of ~5% for CH4 and SF6, and ~1% for CO2 compared with the observed volume-mixing ratios. The simulated columnaveraged dry air mole fractions of atmospheric carbon dioxide (XCO2) and meth ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000038830
Veröffentlicht am 06.04.2018
Originalveröffentlichung
DOI: 10.5194/acp-13-1713-2013
Scopus
Zitationen: 25
Web of Science
Zitationen: 24
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF)
Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung (IMK-IFU)
Publikationstyp Zeitschriftenaufsatz
Jahr 2013
Sprache Englisch
Identifikator ISSN: 1680-7316, 1680-7324
urn:nbn:de:swb:90-388302
KITopen-ID: 1000038830
HGF-Programm 12.03.01 (POF II, LK 01)
Erschienen in Atmospheric chemistry and physics
Band 13
Heft 4
Seiten 1713-1732
Nachgewiesen in Scopus
Web of Science
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