Seasonal characteristics of air masses arriving at Gosan, Korea, using fine particle measurements between November 2001 and August 2003

Abstract. To investigate the seasonal characteristics of trace gas distributions in the extratropical upper troposphere and lower stratosphere (ExUTLS) as well as stratosphere–troposphere exchange processes, origin fractions of air masses originating in the stratosphere, tropical troposphere, midlatitude lower troposphere (LT), and high-latitude LT in the ExUTLS are estimated using 10-year backward trajectories calculated with European Centre for Medium-Range Weather Forecasts (ECMWF) ERA-Interim data as the meteorological input. Time series of trace gases obtained from ground-based and airborne observations are incorporated into the trajectories, thus reconstructing spatiotemporal distributions of trace gases in the ExUTLS. The reconstructed tracer distributions are analyzed with the origin fractions and the stratospheric age of air (AoA) estimated using the backward trajectories. The reconstructed distributions of SF6 and CO2 in the ExUTLS are linearly correlated with those of AoA because of their chemically passive behavior and quasi-stable increasing trends in the troposphere. Distributions of CH4, N2O, and CO are controlled primarily by chemical decay along the transport path from the source region via the stratosphere and subsequent mixing of such stratospheric air masses with tropospheric air masses in the ExUTLS.

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Fine Particle Measurements Inside and Outside Tunnel-Ventilated Broiler Houses

The Journal of Applied Poultry Research ◽

10.1093/japr/15.3.394 ◽

2006 ◽

Vol 15 (3) ◽

pp. 394-405 ◽

Cited By ~ 6

Author(s):

M.C. Visser ◽

B. Fairchild ◽

M. Czarick ◽

M. Lacy ◽

J. Worley ◽

...

Keyword(s):

Fine Particle ◽

Particle Measurements

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Fine particle measurements at two background sites in Korea between 1996 and 1997

Atmospheric Environment ◽

10.1016/s1352-2310(00)00378-2 ◽

2001 ◽

Vol 35 (4) ◽

pp. 635-643 ◽

Cited By ~ 70

Author(s):

Jong Hoon Lee ◽

Yong Pyo Kim ◽

Kil-Choo Moon ◽

Hui-Kang Kim ◽

Chong Bum Lee

Keyword(s):

Fine Particle ◽

Particle Measurements

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Field evaluation of a Portable Fine Particle Concentrator (PFPC) for ice nucleating particle measurements

Aerosol Science and Technology ◽

10.1080/02786826.2019.1626346 ◽

2019 ◽

Vol 53 (9) ◽

pp. 1067-1078 ◽

Cited By ~ 2

Author(s):

Ellen Gute ◽

Larissa Lacher ◽

Zamin A. Kanji ◽

Rebecca Kohl ◽

Joachim Curtius ◽

...

Keyword(s):

Fine Particle ◽

Field Evaluation ◽

Particle Measurements

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Calibration of an aircraft-borne aerosol inlet system for fine particle measurements

Journal of Aerosol Science ◽

10.1016/s0021-8502(99)80088-3 ◽

1999 ◽

Vol 30 ◽

pp. S153-S154 ◽

Cited By ~ 2

Author(s):

M. Hermann ◽

F. Stratmann ◽

A. Wiedensohler

Keyword(s):

Fine Particle ◽

Inlet System ◽

Particle Measurements

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Seasonal characteristics of chemical and dynamical transports into the extratropical upper troposphere/lower stratosphere

10.5194/acp-2018-1030 ◽

2018 ◽

Author(s):

Yoichi Inai ◽

Ryo Fujita ◽

Toshinobu Machida ◽

Hidekazu Matsueda ◽

Yousuke Sawa ◽

...

Keyword(s):

Lower Stratosphere ◽

Lower Troposphere ◽

Air Masses ◽

Upper Troposphere ◽

Weather Forecasts ◽

Chemical Tracers ◽

Spatiotemporal Distributions ◽

Seasonal Characteristics ◽

Exchange Processes ◽

Ch4 And N2o

Abstract. To investigate the seasonal characteristics of chemical tracer distributions in the extratropical upper troposphere and lower stratosphere (ExUTLS) as well as stratosphere–troposphere exchange processes, mixing fractions of air masses originating in the stratosphere, tropical troposphere, mid-latitude lower troposphere (LT), and high-latitude LT in the ExUTLS are estimated using 90-day backward trajectories calculated with European Centre For Medium-Range Weather Forecasts (ECMWF) ERA-Interim data as the meteorological input. Time-series of chemical tracers obtained from ground-based and airborne observations are incorporated into the estimated mixing fractions, thus reconstructing spatiotemporal distributions of chemical tracers in the ExUTLS. The reconstructed tracer distributions are analysed with the mixing fractions and the stratospheric age of air (AoA) estimated using a 10-year backward trajectory. The reconstructed distributions of CO and CO2 in the ExUTLS are affected primarily by tropospheric air masses because of the short chemical lifetime of the former and large seasonal variations in the troposphere of the latter. Distributions of CH4, N2O, and SF6 are controlled primarily by seasonally varying air masses transported from the stratosphere. For CH4 and N2O distributions, air masses transported via the deep branch of the Brewer–Dobson circulation are particularly important. This interpretation is qualitatively and quantitatively supported by the estimated spatiotemporal distributions of AoA.

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