In:
Journal of Geophysical Research: Atmospheres, American Geophysical Union (AGU), Vol. 103, No. D9 ( 1998-05-20), p. 10849-10858
Abstract:
The colocation of two technically different instruments for ground‐based remote sensing of NO 2 total column amounts at the primary Network for the Detection of Stratospheric Change Alpine station of the Jungfraujoch (46.5°N, 8.0°E) has been exploited for mutual validation of the long‐term NO 2 time series from both instruments and for a quantitative evaluation of the impact of the Mount Pinatubo eruption on the NO 2 abundance above this northern midlatitude observatory. The two techniques are high‐resolution Fourier transform infrared solar absorption spectrometry and zenith‐sky differential optical absorption spectroscopy in the UV visible. The diurnal variation of NO 2 has been simulated by a simple photochemical model that allows a comparison between the data from the two techniques. This model is shown to reproduce the observed morning to evening ratios to 2.3%, on average, which is fully adequate for the needs of this study. From the 1985–1996 combined time series of NO 2 morning and evening abundances, it has been concluded that the enhanced aerosol load injected into the stratosphere by Mount Pinatubo caused a maximum NO 2 reduction above the Jungfraujoch by 45% in early January 1992 that died out quasi‐exponentially to zero by the beginning of 1995.
Type of Medium:
Online Resource
ISSN:
0148-0227
Language:
English
Publisher:
American Geophysical Union (AGU)
Publication Date:
1998
detail.hit.zdb_id:
2033040-6
detail.hit.zdb_id:
3094104-0
detail.hit.zdb_id:
2130824-X
detail.hit.zdb_id:
2016813-5
detail.hit.zdb_id:
2016810-X
detail.hit.zdb_id:
2403298-0
detail.hit.zdb_id:
2016800-7
detail.hit.zdb_id:
161666-3
detail.hit.zdb_id:
161667-5
detail.hit.zdb_id:
2969341-X
detail.hit.zdb_id:
161665-1
detail.hit.zdb_id:
3094268-8
detail.hit.zdb_id:
710256-2
detail.hit.zdb_id:
2016804-4
detail.hit.zdb_id:
3094181-7
detail.hit.zdb_id:
3094219-6
detail.hit.zdb_id:
3094167-2
detail.hit.zdb_id:
2220777-6
detail.hit.zdb_id:
3094197-0
SSG:
16,13
Bookmarklink