Zobrazeno 1 - 10
of 148
pro vyhledávání: '"D A Degenstein"'
Autor:
S. Godin-Beekmann, N. Azouz, V. F. Sofieva, D. Hubert, I. Petropavlovskikh, P. Effertz, G. Ancellet, D. A. Degenstein, D. Zawada, L. Froidevaux, S. Frith, J. Wild, S. Davis, W. Steinbrecht, T. Leblanc, R. Querel, K. Tourpali, R. Damadeo, E. Maillard Barras, R. Stübi, C. Vigouroux, C. Arosio, G. Nedoluha, I. Boyd, R. Van Malderen, E. Mahieu, D. Smale, R. Sussmann
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 11657-11673 (2022)
This study presents an updated evaluation of stratospheric ozone profile trends in the 60∘ S–60∘ N latitude range over the 2000–2020 period using an updated version of the Long-term Ozone Trends and Uncertainties in the Stratosphere (LOTUS) r
Externí odkaz:
https://doaj.org/article/bd187cf485834713ab837ef740cd1fb7
Autor:
P. E. Sheese, K. A. Walker, C. D. Boone, A. E. Bourassa, D. A. Degenstein, L. Froidevaux, C. T. McElroy, D. Murtagh, J. M. Russell III, J. Zou
Publikováno v:
Atmospheric Measurement Techniques, Vol 15, Pp 1233-1249 (2022)
For the past 17 years, the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) instrument on the Canadian SCISAT satellite has been measuring profiles of atmospheric ozone. The latest operational versions of the level 2 ozone da
Externí odkaz:
https://doaj.org/article/03081a4376da4266a43a6b2da2ba4cc8
Autor:
A. Li, C. Z. Roth, A. E. Bourassa, D. A. Degenstein, K. Pérot, O. M. Christensen, D. P. Murtagh
Publikováno v:
Earth System Science Data, Vol 13, Pp 5115-5126 (2021)
The OH airglow has been used to investigate the chemistry and dynamics of the mesosphere and the lower thermosphere (MLT) for a long time. The infrared imager (IRI) aboard the Odin satellite has been recording the night-time 1.53 µm OH (3-1) emissio
Externí odkaz:
https://doaj.org/article/0dc2d6a0ea134b39b82bdbb673414366
Autor:
P. E. Sheese, K. A. Walker, C. D. Boone, D. A. Degenstein, F. Kolonjari, D. Plummer, D. E. Kinnison, P. Jöckel, T. von Clarmann
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 1425-1438 (2021)
In order to validate satellite measurements of atmospheric composition, it is necessary to understand the range of random and systematic uncertainties inherent in the measurements. On occasions where measurements from two different satellite instrume
Externí odkaz:
https://doaj.org/article/0ffd071e5dde463bb7b0ebb4ced11fc2
Publikováno v:
Atmospheric Measurement Techniques, Vol 13, Pp 6215-6236 (2020)
Improving knowledge of the ozone global distributions in the mesosphere–lower thermosphere (MLT) is a crucial step in understanding the behaviour of the middle atmosphere. However, the concentration of ozone under sunlit conditions in the MLT is of
Externí odkaz:
https://doaj.org/article/8245cd9269ff43d2a5608010c96034e1
Autor:
T. von Clarmann, D. A. Degenstein, N. J. Livesey, S. Bender, A. Braverman, A. Butz, S. Compernolle, R. Damadeo, S. Dueck, P. Eriksson, B. Funke, M. C. Johnson, Y. Kasai, A. Keppens, A. Kleinert, N. A. Kramarova, A. Laeng, B. Langerock, V. H. Payne, A. Rozanov, T. O. Sato, M. Schneider, P. Sheese, V. Sofieva, G. P. Stiller, C. von Savigny, D. Zawada
Publikováno v:
Atmospheric Measurement Techniques, Vol 13, Pp 4393-4436 (2020)
Remote sensing of atmospheric state variables typically relies on the inverse solution of the radiative transfer equation. An adequately characterized retrieval provides information on the uncertainties of the estimated state variables as well as on
Externí odkaz:
https://doaj.org/article/0bb8d003aa8c4d81944245a2b2782ca9
Publikováno v:
Atmospheric Measurement Techniques, Vol 11, Pp 3433-3445 (2018)
Limb scatter instruments in the UV–vis spectral range have provided long-term global records of stratospheric aerosol extinction important for climate records and modelling. While comparisons with occultation instruments show generally good agree
Externí odkaz:
https://doaj.org/article/1b98265224c24c52add4999065991376
Publikováno v:
Atmospheric Measurement Techniques, Vol 11, Pp 2375-2393 (2018)
Measurements of limb-scattered sunlight from the Ozone Mapping and Profiler Suite Limb Profiler (OMPS-LP) can be used to obtain vertical profiles of ozone in the stratosphere. In this paper we describe a two-dimensional, or tomographic, retrieval a
Externí odkaz:
https://doaj.org/article/f9b1128d2ff94a7c83ceae9b8b218e36
Publikováno v:
Atmospheric Measurement Techniques, Vol 11, Pp 489-498 (2018)
A small long-term drift in the Optical Spectrograph and Infrared Imager System (OSIRIS) stratospheric ozone product, manifested mostly since 2012, is quantified and attributed to a changing bias in the limb pointing knowledge of the instrument. A
Externí odkaz:
https://doaj.org/article/17cb59a7aae246b6b7d8b4d3099a451a
Autor:
C. Adams, A. E. Bourassa, C. A. McLinden, C. E. Sioris, T. von Clarmann, B. Funke, L. A. Rieger, D. A. Degenstein
Publikováno v:
Atmospheric Chemistry and Physics, Vol 17, Pp 8063-8080 (2017)
Following the large volcanic eruptions of Pinatubo in 1991 and El Chichón in 1982, decreases in stratospheric NO2 associated with enhanced aerosol were observed. The Optical Spectrograph and Infrared Imaging Spectrometer (OSIRIS) measured the wid
Externí odkaz:
https://doaj.org/article/130a95c5ec124e62adca78c5c12c715a