Tropospheric SF6: Observed latitudinal distribution and trends, derived emissions and interhemispheric exchange time

被引：152

作者：

Geller, LS ^{[1
]}

Elkins, JW ^{[1
]}

Lobert, JM ^{[1
]}

Clarke, AD ^{[1
]}

Hurst, DF ^{[1
]}

Butler, JH ^{[1
]}

Myers, RC ^{[1
]}

机构：

[1] UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,BOULDER,CO 80309

来源：

GEOPHYSICAL RESEARCH LETTERS | 1997年 / 24卷 / 06期

关键词：

D O I：

10.1029/97GL00523

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Sulfur hexafluoride (SF6), an anthropogenically produced compound that is a potent greenhouse gas, had been measured in a number of NOAA CMDL air sampling programs. These include high resolution latitudinal profiles over the Atlantic and Pacific oceans, weekly flask samples from seven remote, globally distributed sites, hourly in situ measurements in rural North Carolina, and a series of archived air samples from Niwot Ridge, Colorado. The observed increase in atmospheric mixing ratio is consistent with an overall quadratic growth rate, at 6.9 +/- 0.2% yr(-1) (0.24 +/- 0.01 ppt yr(-1)) for early 1996. From these data we derive an early 1996 emission rate of 5.9 +/- 0.2 Gg SF6 yr(-1) and an interhemispheric exchange time of 1.3 +/- 0.1 years.

引用

页码：675 / 678

页数：4

共 15 条

[1]

ALBRITTON DL, 1995, CLIMATE CHANGE 1994, P339

[2] A DECREASE IN THE GROWTH-RATES OF ATMOSPHERIC HALON CONCENTRATIONS [J].

BUTLER, JH ;

ELKINS, JW ;

HALL, BD ;

CUMMINGS, SO ;

MONTZKA, SA .

NATURE, 1992, 359 (6394) :403-405

[3] A comparison of measurements from ATMOS and instruments aboard the ER-2 aircraft: Tracers of atmospheric transport [J].

Chang, AY ;

Salawitch, RJ ;

Michelsen, HA ;

Gunson, MR ;

Abrams, MC ;

Zander, R ;

Rinsland, CP ;

Loewenstein, M ;

Podolske, JR ;

Proffitt, MH ;

Margitan, JJ ;

Fahey, DW ;

Gao, RS ;

Kelly, KK ;

Elkins, JW ;

Webster, CR ;

May, RD ;

Chan, KR ;

Abbas, MM ;

Goldman, A ;

Irion, FW ;

Manney, GL ;

Newchurch, MJ ;

Stiller, GP .

GEOPHYSICAL RESEARCH LETTERS, 1996, 23 (17) :2389-2392

[4]

COOK E, 1995, P EL TRANM DISTR SYS

[5] Airborne gas chromatograph for in situ measurements of long-lived species in the upper troposphere and lower stratosphere [J].

Elkins, JW ;

Fahey, DW ;

Gilligan, JM ;

Dutton, GS ;

Baring, TJ ;

Volk, CM ;

Dunn, RE ;

Myers, RC ;

Montzka, SA ;

Wamsley, PR ;

Hayden, AH ;

Butler, JH ;

Thompson, TM ;

Swanson, TH ;

Dlugokencky, EJ ;

Novelli, PC ;

Hurst, DF ;

Lobert, JM ;

Ciciora, SJ ;

McLaughlin, RJ ;

Thompson, TL ;

Winkler, RH ;

Fraser, PJ ;

Steele, LP ;

Lucarelli, MP .

GEOPHYSICAL RESEARCH LETTERS, 1996, 23 (04) :347-350

[6] DECREASE IN THE GROWTH-RATES OF ATMOSPHERIC CHLOROFLUOROCARBON-11 AND CHLOROFLUOROCARBON-12 [J].

ELKINS, JW ;

THOMPSON, TM ;

SWANSON, TH ;

BUTLER, JH ;

HALL, BD ;

CUMMINGS, SO ;

FISHER, DA ;

RAFFO, AG .

NATURE, 1993, 364 (6440) :780-783

[7]

GELLER L, 1996, THESIS U COLORADO

[8] Effect of natural tetrafluoromethane [J].

Harnisch, J ;

Borchers, R ;

Fabian, P ;

Gaggeler, HW ;

Schotterer, U .

NATURE, 1996, 384 (6604) :32-32

[9]

HURST DF, 1997, IN PRESS J GEOPHYS R

[10] ATMOSPHERIC DISTRIBUTION OF KR-85 SIMULATED WITH A GENERAL-CIRCULATION MODEL [J].

JACOB, DJ ;

PRATHER, MJ ;

WOFSY, SC ;

MCELROY, MB .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1987, 92 (D6) :6614-6626

← 1 2 →