DOAS moonlight observation of atmospheric NO 3  in the Arctic winter | Zendy

Wagner Thomas | Zendy; Otten Cornelius | Zendy; Pfeilsticker Klaus | Zendy; Pundt Irene | Zendy; Platt Ulrich | Zendy

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DOAS moonlight observation of atmospheric NO 3 in the Arctic winter

Author(s) -

Wagner Thomas,

Otten Cornelius,

Pfeilsticker Klaus,

Pundt Irene,

Platt Ulrich

Publication year - 2000

Publication title -

geophysical research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.007

H-Index - 273

eISSN - 1944-8007

pISSN - 0094-8276

DOI - 10.1029/1999gl011153

Subject(s) - sunset , moonlight , atmospheric sciences , zenith , environmental science , stratosphere , arctic , diurnal temperature variation , polar night , the arctic , solar zenith angle , absorption (acoustics) , atmosphere (unit) , climatology , geology , meteorology , geodesy , oceanography , physics , optics

The diurnal variation of the vertical column density (VCD) of NO 3 was measured during 16 nights in the winter 1993/94 (mid January–early March) at Kiruna (68°N, 21°E) using the moon as light source. The lunar zenith angle (LZA) dependence of the NO 3 absorption indicates that the majority (≥75%) of the atmospheric column was located in the stratosphere. After a rapid increase within the first two hours after sunset the measured NO 3 VCDs only slowly increase during the rest of the night. The NO 3 VCDs (≤ 3.2 · 10 13 molec/cm²) are significantly larger compared to previous NO 3 measurements in the Arctic. These differences can be most probably attributed to different atmospheric temperatures and differences in the correction of the H 2 O absorption structure in the NO 3 analysis.

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