Zobrazeno 1 - 10
of 343
pro vyhledávání: '"E Kretschmer"'
Autor:
S. Johansson, M. Höpfner, F. Friedl-Vallon, N. Glatthor, T. Gulde, V. Huijnen, A. Kleinert, E. Kretschmer, G. Maucher, T. Neubert, H. Nordmeyer, C. Piesch, P. Preusse, M. Riese, B.-M. Sinnhuber, J. Ungermann, G. Wetzel, W. Woiwode
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 8125-8138 (2024)
Ammonia (NH3) is the major alkaline species in the atmosphere and plays an important role in aerosol formation, which affects local air quality and the radiation budget. NH3 in the upper troposphere and lower stratosphere (UTLS) is difficult to detec
Externí odkaz:
https://doaj.org/article/7c58fcb15160445ab0e8aba97c98cc3b
Autor:
G. Wetzel, F. Friedl-Vallon, N. Glatthor, J.-U. Grooß, T. Gulde, M. Höpfner, S. Johansson, F. Khosrawi, O. Kirner, A. Kleinert, E. Kretschmer, G. Maucher, H. Nordmeyer, H. Oelhaf, J. Orphal, C. Piesch, B.-M. Sinnhuber, J. Ungermann, B. Vogel
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 8213-8232 (2021)
Measurements of the pollution trace gases ethane (C2H6), ethyne (C2H2), formic acid (HCOOH), and peroxyacetyl nitrate (PAN) were performed in the North Atlantic upper troposphere and lowermost stratosphere (UTLS) region with the airborne limb imager
Externí odkaz:
https://doaj.org/article/4256b9b68f1d4ece8f7a0afb3146905d
Autor:
S. Johansson, M. Höpfner, O. Kirner, I. Wohltmann, S. Bucci, B. Legras, F. Friedl-Vallon, N. Glatthor, E. Kretschmer, J. Ungermann, G. Wetzel
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 14695-14715 (2020)
We present the first high-resolution measurements of pollutant trace gases in the Asian summer monsoon upper troposphere and lowermost stratosphere (UTLS) from the Gimballed Limb Observer for Radiance Imaging of the Atmosphere (GLORIA) during the Str
Externí odkaz:
https://doaj.org/article/6670fa1febfb4a59af18d1951b62e8f1
Autor:
S. Johansson, M. L. Santee, J.-U. Grooß, M. Höpfner, M. Braun, F. Friedl-Vallon, F. Khosrawi, O. Kirner, E. Kretschmer, H. Oelhaf, J. Orphal, B.-M. Sinnhuber, I. Tritscher, J. Ungermann, K. A. Walker, W. Woiwode
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 8311-8338 (2019)
The Arctic winter 2015/16 was characterized by cold stratospheric temperatures. Here we present a comprehensive view of the temporal evolution of chlorine in the lowermost stratosphere over the course of the studied winter. We utilize two-dimensional
Externí odkaz:
https://doaj.org/article/827b6dfe7ec647ecbb4ccb50e8b9abda
Publikováno v:
Atmospheric Measurement Techniques, Vol 12, Pp 853-872 (2019)
Multiple limb sounder measurements of the same atmospheric region taken from different directions can be combined in a 3-D tomographic retrieval. Mathematically, this is a computationally expensive inverse modelling problem. It typically requires an
Externí odkaz:
https://doaj.org/article/54df46c1d1184f19b07bc6ecd861cf58
Autor:
W. Woiwode, A. Dörnbrack, M. Bramberger, F. Friedl-Vallon, F. Haenel, M. Höpfner, S. Johansson, E. Kretschmer, I. Krisch, T. Latzko, H. Oelhaf, J. Orphal, P. Preusse, B.-M. Sinnhuber, J. Ungermann
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 15643-15667 (2018)
We report airborne remote-sensing observations of a tropopause fold during two crossings of the polar front jet over northern Italy on 12 January 2016. The GLORIA (Gimballed Limb Observer for Radiance Imaging of the Atmosphere) observations allowe
Externí odkaz:
https://doaj.org/article/8650df66e5754e74b6ea3f83e9f3e2c7
Autor:
S. Johansson, W. Woiwode, M. Höpfner, F. Friedl-Vallon, A. Kleinert, E. Kretschmer, T. Latzko, J. Orphal, P. Preusse, J. Ungermann, M. L. Santee, T. Jurkat-Witschas, A. Marsing, C. Voigt, A. Giez, M. Krämer, C. Rolf, A. Zahn, A. Engel, B.-M. Sinnhuber, H. Oelhaf
Publikováno v:
Atmospheric Measurement Techniques, Vol 11, Pp 4737-4756 (2018)
The Gimballed Limb Observer for Radiance Imaging of the Atmosphere (GLORIA) was operated on board the German High Altitude and Long Range Research Aircraft (HALO) during the PGS (POLSTRACC/GW-LCYCLE/SALSA) aircraft campaigns in the Arctic winter 2
Externí odkaz:
https://doaj.org/article/c786be6898884fffac31e952baf975a1
Publikováno v:
Atmospheric Measurement Techniques, Vol 11, Pp 4327-4344 (2018)
Three-dimensional measurements of gravity waves are required in order to quantify their direction-resolved momentum fluxes and obtain a better understanding of their propagation characteristics. Such 3-D measurements of gravity waves in the lowerm
Externí odkaz:
https://doaj.org/article/6288630a08bb4c1f8adc247217866d47
Publikováno v:
Communication Disorders Quarterly. 44:133-137
This article details the transcription process we developed to handle bimodal and multilingual interview data collected during our research into the teacher language awareness (TLA) of two high-quality teachers in a Swedish bilingual school for the d
Autor:
C. Rolf, A. Afchine, H. Bozem, B. Buchholz, V. Ebert, T. Guggenmoser, P. Hoor, P. Konopka, E. Kretschmer, S. Müller, H. Schlager, N. Spelten, O. Sumińska-Ebersoldt, J. Ungermann, A. Zahn, M. Krämer
Publikováno v:
Atmospheric Chemistry and Physics, Vol 15, Iss 16, Pp 9143-9158 (2015)
Dehydration in the Antarctic winter stratosphere is a well-known phenomenon that is annually observed by satellites and occasionally observed by balloon-borne measurements. However, in situ measurements of dehydrated air masses in the Antarctic vorte
Externí odkaz:
https://doaj.org/article/d2329505b0d4491f8024039f5310aa90