A persistent imbalance in HOx and NOx photochemistry of the upper troposphere driven by deep tropical convection

被引：152

作者：

Prather, MJ ^{[1
]}

Jacob, DJ

机构：

[1] Univ Calif Irvine, Earth Syst Sci Dept, Irvine, CA 92697 USA

[2] Harvard Univ, Div Engn & Appl Sci, Dept Earth & Planetary Sci, Cambridge, MA 02138 USA

来源：

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

关键词：

D O I：

10.1029/97GL03027

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Convection in the tropics turns over the upper troposphere at rates (0.08 d(-1)) comparable to photochemical processes controlling the absolute abundance of HOx (OH + HO2) and the abundance of NOx (NO + NO2) relative to HNO3. Here we identify convection of boundary-layer CH3OOH as a primary source of HO, to the upper troposphere. Turnover of NOx leads to NO/HNO3 ratios much higher than predicted for local photochemical steady-state. Through convective transport the upper troposphere is more photochemically active in producing O-3, an important greenhouse gas.

引用

页码：3189 / 3192

页数：4

共 28 条

[1] HENRY LAW CONSTANTS OF SOME ENVIRONMENTALLY IMPORTANT ALDEHYDES [J].

BETTERTON, EA ;

HOFFMANN, MR .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1988, 22 (12) :1415-1418

[2] Atmospheric impact of NOx emissions by subsonic aircraft: A three-dimensional model study [J].

Brasseur, GP ;

Muller, JF ;

Granier, C .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1996, 101 (D1) :1423-1428

[3] MEASUREMENTS OF NITRIC-OXIDE AND NITROGEN-DIOXIDE DURING THE MAUNA-LOA-OBSERVATORY PHOTOCHEMISTRY EXPERIMENT [J].

CARROLL, MA ;

RIDLEY, BA ;

MONTZKA, DD ;

HUBLER, G ;

WALEGA, JG ;

NORTON, RB ;

HUEBERT, BJ ;

GRAHEK, FE .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1992, 97 (D10) :10361-10374

[4] SULFUR-DIOXIDE IN REMOTE OCEANIC AIR - CLOUD TRANSPORT OF REACTIVE PRECURSORS [J].

CHATFIELD, RB ;

CRUTZEN, PJ .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1984, 89 (ND5) :7111-7132

[5] Assessment of ozone photochemistry in the western North Pacific as inferred from PEM-West A observations during the fall 1991 [J].

Davis, DD ;

Crawford, J ;

Chen, G ;

Chameides, W ;

Liu, S ;

Bradshaw, J ;

Sandholm, S ;

Sachse, G ;

Gregory, G ;

Anderson, B ;

Barrick, J ;

Bachmeier, A ;

Collins, J ;

Browell, E ;

Blake, D ;

Rowland, S ;

Kondo, Y ;

Singh, H ;

Talbot, R ;

Heikes, B ;

Merrill, J ;

Rodriguez, J ;

Newell, RE .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1996, 101 (D1) :2111-2134

[6]

DELGENIO AD, 1992, CUMULUS PARAMETERIZA

[7]

DEMORE WB, 1994, PUBL JET PROPUL LAB, V9426

[8] SOURCES AND DISTRIBUTION OF NOX IN THE UPPER TROPOSPHERE AT NORTHERN MIDLATITUDES [J].

EHHALT, DH ;

ROHRER, F ;

WAHNER, A .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1992, 97 (D4) :3725-3738

[9]

Emanuel K. A., 1994, Atmospheric Convection

[10] CUMULUS CLOUD TRANSPORT OF TRANSIENT TRACERS [J].

GIDEL, LT .

JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1983, 88 (NC11) :6587-6599

← 1 2 3 →