FAST SCANNING LASER DOAS FOR LOCAL MONITORING OF TRACE GASES, IN PARTICULAR TROPOSPHERIC OH RADICALS

被引：12

作者：

ARMERDING, W ^{[1
]}

SPIEKERMANN, M ^{[1
]}

GRIGONIS, R ^{[1
]}

WALTER, J ^{[1
]}

HERBERT, A ^{[1
]}

COMES, FJ ^{[1
]}

机构：

[1] VILNIUS STATE UNIV, LASER RES CTR, VILNIUS 232054, LITHUANIA, USSR

来源：

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1992年 / 96卷 / 03期

关键词：

HYDROXYL; LONG PATH ABSORPTION; PHOTOCHEMISTRY; RADICALS; SPECTROSCOPY; ULTRAVIOLET;

D O I：

10.1002/bbpc.19920960317

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A method for monitoring tropospheric OH and other tropospheric trace gases is described which makes use of differential absorption spectroscopy and is based on the fast scanning of a narrowbanded and power-stabilized laser. Due to the fast scanning the remaining influences due to atmospheric fluctuations are negligibly small. The modulation and fluctuation of the light source are minimized by a closed loop modulator system. The absorption path is folded by a multiple reflection system with a special design for tropospheric measurements which allows local trace gas measurements in a compartment of only some meters with a well known chemistry. A field campaign was carried out with this instrument on the Schauinsland, Black Forest, Germany. A detection limit better than 10(-5) corresponding to an OH concentration of 5 . 10(5) OH/cm-3 was achieved in local tropospheric air.

引用

页码：314 / 318

页数：5

共 26 条

[1] AMBIENT AIR HYDROXYL RADICAL CONCENTRATIONS - MEASUREMENTS AND MODEL PREDICTIONS [J].

ALTSHULLER, AP .

JAPCA-THE JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION, 1989, 39 (05) :704-708

[2] INSITU MEASUREMENTS OF TROPOSPHERIC OH RADICALS - A CHALLENGE FOR THE EXPERIMENTALIST [J].

ARMERDING, W ;

HERBERT, A ;

SCHINDLER, T ;

SPIEKERMANN, M ;

COMES, FJ .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1990, 94 (07) :776-781

[3] FAST SCANNING LASER DOAS - A VERY PROMISING TECHNIQUE FOR MONITORING OH AND OTHER TROPOSPHERIC TRACE GASES [J].

ARMERDING, W ;

HERBERT, A ;

SPIEKERMANN, M ;

WALTER, J ;

COMES, FJ .

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY, 1991, 340 (10) :654-660

[4] A WHITE CELL TYPE MULTIPLE REFLECTION SYSTEM FOR TROPOSPHERIC RESEARCH [J].

ARMERDING, W ;

WALTER, J ;

COMES, FJ .

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY, 1991, 340 (10) :661-664

[5] TEMPORAL AND SPATIAL AVERAGING EFFECTS IN LOCAL TROPOSPHERIC HYDROXYL DETERMINATION [J].

ARMERDING, W ;

HERBERT, A ;

COMES, FJ .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1991, 95 (10) :1293-1296

[6] SHOT NOISE LIMITED DETECTION OF OH USING THE TECHNIQUE OF LASER-INDUCED FLUORESCENCE [J].

BAKALYAR, DM ;

DAVIS, LI ;

GUO, C ;

JAMES, JV ;

KAKOS, S ;

MORRIS, PT ;

WANG, CC .

APPLIED OPTICS, 1984, 23 (22) :4076-4082

[7] SEQUENTIAL 2-PHOTON LASER-INDUCED FLUORESCENCE - A NEW TECHNIQUE FOR DETECTING HYDROXYL RADICALS [J].

BRADSHAW, JD ;

RODGERS, MO ;

DAVIS, DD .

APPLIED OPTICS, 1984, 23 (13) :2134-2145

[8] TROPOSPHERIC OH - LOCAL MEASUREMENTS AND THEIR INTERPRETATIONS [J].

COMES, FJ ;

ARMERDING, W ;

GRIGONIS, R ;

HERBERT, A ;

SPIEKERMANN, M ;

WALTER, J .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1992, 96 (03) :284-286

[9]

COMES FJ, UNPUB

[10] ATMOSPHERIC CHEMISTRY - PROGRESS AND SURPRISES IN THE PAST 5 YEARS [J].

COX, RA .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1990, 51 (01) :29-40

← 1 2 3 →