A stratospheric excess of CO2 -: due to tropical deep convection?

被引：18

作者：

Harnisch, J ^{[1
]}

Bischof, W

Borchers, R

Fabian, P

Maiss, M

机构：

[1] Max Planck Inst Aeron, D-37189 Katlenburg Lindau, Germany

[2] Univ Munich, Lehrstuhl Bioklimatol & Immissionsforsch, D-85354 Freising, Germany

[3] Max Planck Inst Chem, D-55020 Mainz, Germany

来源：

GEOPHYSICAL RESEARCH LETTERS | 1998年 / 25卷 / 01期

关键词：

D O I：

10.1029/97GL03398

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The 'age' of stratospheric air is a measure that characterize's the time scales of stratospheric transport. In this work we present and compare age-values as determined from measurements of CO2 and SF6 on air-samples obtained between 1987 and 1995 on six flights of our balloon-borne cryo-sampler. In the middle stratosphere for five out of six flights we find age-values that are up to three years lower for CO2 than for SF6. This CO2-age anomaly corresponds to an excess of 4-5 ppm CO2. Evidence is presented that this excess-CO2 originates from rapid convective transport of near surface air, Additionally, we show that globally no compact relationship exists between the age of air and mixing-ratios of N2O.

引用

页码：63 / 66

页数：4

共 26 条

[1] INCREASED CONCENTRATION AND VERTICAL-DISTRIBUTION OF CARBON-DIOXIDE IN THE STRATOSPHERE [J].

BISCHOF, W ;

BORCHERS, R ;

FABIAN, P ;

KRUGER, BC .

NATURE, 1985, 316 (6030) :708-710

[2]

BISCHOF W, 1973, TELLUS, V25, P305, DOI 10.1111/j.2153-3490.1973.tb00615.x

[3] Stratospheric mean ages and transport rates from observations of carbon dioxide and nitrous oxide [J].

Boering, KA ;

Wofsy, SC ;

Daube, BC ;

Schneider, HR ;

Loewenstein, M ;

Podolske, JR .

SCIENCE, 1996, 274 (5291) :1340-1343

[4] EVIDENCE FOR INTERANNUAL VARIABILITY OF THE CARBON-CYCLE FROM THE NATIONAL-OCEANIC-AND-ATMOSPHERIC-ADMINISTRATION CLIMATE-MONITORING-AND-DIAGNOSTICS-LABORATORY GLOBAL-AIR-SAMPLING-NETWORK [J].

CONWAY, TJ ;

TANS, PP ;

WATERMAN, LS ;

THONING, KW .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1994, 99 (D11) :22831-22855

[5] INSITU EVIDENCE OF RAPID, VERTICAL, IRREVERSIBLE TRANSPORT OF LOWER TROPOSPHERIC AIR INTO THE LOWER TROPICAL STRATOSPHERE BY CONVECTIVE CLOUD TURRETS AND BY LARGER-SCALE UPWELLING IN TROPICAL CYCLONES [J].

DANIELSEN, EF .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1993, 98 (D5) :8665-8681

[6]

FABIAN P, 1981, ADV SPACE RES, V10, P17

[7] Tropospheric SF6: Observed latitudinal distribution and trends, derived emissions and interhemispheric exchange time [J].

Geller, LS ;

Elkins, JW ;

Lobert, JM ;

Clarke, AD ;

Hurst, DF ;

Butler, JH ;

Myers, RC .

GEOPHYSICAL RESEARCH LETTERS, 1997, 24 (06) :675-678

[8] SIMULATIONS OF THE TREND AND ANNUAL CYCLE IN STRATOSPHERIC CO2 [J].

HALL, TM ;

PRATHER, MJ .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1993, 98 (D6) :10573-10581

[9] Timescales for the stratospheric circulation derived from tracers [J].

Hall, TM ;

Waugh, DW .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1997, 102 (D7) :8991-9001

[10] AGE AS A DIAGNOSTIC OF STRATOSPHERIC TRANSPORT [J].

HALL, TM ;

PLUMB, RA .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1994, 99 (D1) :1059-1070

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