INFRARED SPECTROSCOPIC MEASUREMENTS OF THE ETHANE (C2H6) TOTAL COLUMN ABUNDANCE ABOVE MAUNA-LOA, HAWAII - SEASONAL-VARIATIONS

被引：10

作者：

RINSLAND, CP ^{[1
]}

GOLDMAN, A ^{[1
]}

MURCRAY, FJ ^{[1
]}

DAVID, SJ ^{[1
]}

BLATHERWICK, RD ^{[1
]}

MURCRAY, DG ^{[1
]}

机构：

[1] UNIV DENVER,DEPT PHYS,DENVER,CO 80208

来源：

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 1994年 / 52卷 / 3-4期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

D O I：

10.1016/0022-4073(94)90157-0

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

About 200 i.r. solar spectra recorded at 0.01 cm(-1) resolution on 71 days between November 1991 and July 1993 at the Network for the Detection of Stratospheric Change (NDSC) station at Mauna Loa, Hawaii (latitude 19.53 degrees N, longitude 155.58 degrees W, elevation 3.459 km) have been analyzed with a nonlinear least-squares spectral fitting technique to study temporal variations in the total column of atmospheric ethane (C2H6) above the site. The results were derived from the analysis of the unresolved v(7) band (P)Q(3) subbranch at 2976.8 cm(-1) A distinct seasonal cycle is observed with a factor of 2 variation, a maximum total column of 1.16 x 10(16)mol.cm(-2) at the end of winter, and a minimum total column of 0.53 x 10(16) mol.cm(-2) at the end of summer. Our measurements are compared with previous observations and model predictions.

引用

页码：273 / 279

页数：7

共 27 条

[1] GLOBAL ATMOSPHERIC CONCENTRATIONS AND SOURCE STRENGTH OF ETHANE [J].