Evaporation studies of model polar stratospheric cloud films

被引：24

作者：

Middlebrook, AM

Tolbert, MA

Drdla, K

机构：

[1] UNIV CALIF LOS ANGELES,DEPT ATMOSPHER SCI,LOS ANGELES,CA 90024

[2] UNIV COLORADO,CIRES,BOULDER,CO 80309

[3] UNIV COLORADO,DEPT CHEM & BIOCHEM,BOULDER,CO 80309

来源：

GEOPHYSICAL RESEARCH LETTERS | 1996年 / 23卷 / 16期

关键词：

D O I：

10.1029/96GL01962

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

To investigate evaporation of polar stratospheric clouds (PSCs), mixed nibic-acid/ice films with varying HNO3 content were heated at 0.3 K min(-1) in vacuum and monitored with transmission Fourier transform infrared (FTIR) spectroscopy. The ability for HNO3 inclusions to hinder ice evaporation was found to depend on the concentration of HNO3. Specifically, films with initial compositions of similar to 80:1 and similar to 150:1 H2O:HNO3 evaporated similar to 8 K and similar to 3 K higher than pure ice, respectively. In addition, the surface coverage of nitric acid trihydrate (NAT) appears to control the overall evaporation rate. In the atmosphere, NAT may form on the surface of an ice PSC by direct HNO3 adsorption or by evaporation of a PSC with HNO3 in the bulk.

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收藏

页码：2145 / 2148

页数：4

相关论文

共 11 条

[1]

BROWN DE, 1996, IN PRESS J PHYS CHEM

[2] THE LIFETIME OF LEEWAVE-INDUCED ICE PARTICLES IN THE ARCTIC STRATOSPHERE .1. BALLOONBORNE OBSERVATIONS [J].

DESHLER, T ;

PETER, T ;

MULLER, R ;

CRUTZEN, P .

GEOPHYSICAL RESEARCH LETTERS, 1994, 21 (13) :1327-1330

[3] CONDENSATION AND EVAPORATION OF H2O ON ICE SURFACES [J].

HAYNES, DR ;

TRO, NJ ;

GEORGE, SM .

JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (21) :8502-8509

[4] LABORATORY STUDIES OF THE FORMATION OF POLAR STRATOSPHERIC CLOUDS - NITRIC-ACID CONDENSATION ON THIN SULFURIC-ACID FILMS [J].

IRACI, LT ;

MIDDLEBROOK, AM ;

TOLBERT, MA .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1995, 100 (D10) :20969-20977

[5] CHARACTERIZATION OF MODEL POLAR STRATOSPHERIC CLOUD FILMS USING FOURIER-TRANSFORM INFRARED-SPECTROSCOPY AND TEMPERATURE PROGRAMMED DESORPTION [J].

KOEHLER, BG ;

MIDDLEBROOK, AM ;

TOLBERT, MA .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1992, 97 (D8) :8065-8074

[6] THE LIFETIME OF LEEWAVE-INDUCED ICE PARTICLES IN THE ARCTIC STRATOSPHERE .2. STABILIZATION DUE TO NAT-COATING [J].

PETER, T ;

MULLER, R ;

CRUTZEN, PJ ;

DESHLER, T .

GEOPHYSICAL RESEARCH LETTERS, 1994, 21 (13) :1331-1334

[7] FOURIER-TRANSFORM INFRARED STUDIES OF MODEL POLAR STRATOSPHERIC CLOUD SURFACES - GROWTH AND EVAPORATION OF ICE AND NITRIC-ACID ICE [J].

TOLBERT, MA ;

MIDDLEBROOK, AM .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1990, 95 (D13) :22423-22431

[8] SPECTROSCOPIC STUDIES OF MODEL POLAR STRATOSPHERIC CLOUD FILMS [J].

TOLBERT, MA ;

KOEHLER, BG ;

MIDDLEBROOK, AM .

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 1992, 48 (09) :1303-1313

[9] INFRARED OPTICAL-CONSTANTS OF H2O ICE, AMORPHOUS NITRIC-ACID SOLUTIONS, AND NITRIC-ACID HYDRATES [J].

TOON, OB ;

TOLBERT, MA ;

KOEHLER, BG ;

MIDDLEBROOK, AM ;

JORDAN, J .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1994, 99 (D12) :25631-25654

[10] OROGRAPHICALLY FORCED STRATOSPHERIC WAVES OVER NORTHERN SCANDINAVIA [J].

VOLKERT, H ;

INTES, D .

GEOPHYSICAL RESEARCH LETTERS, 1992, 19 (12) :1205-1208