Zobrazeno 1 - 10
of 333
pro vyhledávání: '"Afchine, A."'
Autor:
F. Cairo, M. Krämer, A. Afchine, G. Di Donfrancesco, L. Di Liberto, S. Khaykin, L. Lucaferri, V. Mitev, M. Port, C. Rolf, M. Snels, N. Spelten, R. Weigel, S. Borrmann
Publikováno v:
Atmospheric Measurement Techniques, Vol 16, Pp 4899-4925 (2023)
We analyze cirrus cloud measurements from two dual-instrument cloud spectrometers, two hygrometers and a backscattersonde with the goal of connecting cirrus optical parameters usually accessible by remote sensing with microphysical size-resolved and
Externí odkaz:
https://doaj.org/article/9b8622a7f7b8420f898fa8f4cabd000d
Autor:
E. De La Torre Castro, T. Jurkat-Witschas, A. Afchine, V. Grewe, V. Hahn, S. Kirschler, M. Krämer, J. Lucke, N. Spelten, H. Wernli, M. Zöger, C. Voigt
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 13167-13189 (2023)
Despite their proven importance for the atmospheric radiative energy budget, the effect of cirrus on climate and the magnitude of their modification by human activity is not well quantified. Besides anthropogenic pollution sources on the ground, avia
Externí odkaz:
https://doaj.org/article/ffca93cdc62945b088acb2cfca8aa5dc
Autor:
P. Konopka, C. Rolf, M. von Hobe, S. M. Khaykin, B. Clouser, E. Moyer, F. Ravegnani, F. D'Amato, S. Viciani, N. Spelten, A. Afchine, M. Krämer, F. Stroh, F. Ploeger
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 12935-12947 (2023)
During the StratoClim Geophysica campaign, air with total water mixing ratios up to 200 ppmv and ozone up to 250 ppbv was observed within the Asian summer monsoon anticyclone up to 1.7 km above the local cold-point tropopause (CPT). To investigate th
Externí odkaz:
https://doaj.org/article/4fff99d919b346fd8d883474adc11500
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 2393-2419 (2023)
Cirrus clouds that form in the tropical tropopause layer (TTL) can play a key role in vertical transport through the upper troposphere and lower stratosphere, which can significantly impact the radiative energy budget and stratospheric chemistry. How
Externí odkaz:
https://doaj.org/article/7d967b694f9e4d08bccead9917c8e576
Autor:
C. E. Singer, B. W. Clouser, S. M. Khaykin, M. Krämer, F. Cairo, T. Peter, A. Lykov, C. Rolf, N. Spelten, A. Afchine, S. Brunamonti, E. J. Moyer
Publikováno v:
Atmospheric Measurement Techniques, Vol 15, Pp 4767-4783 (2022)
In situ measurements in the climatically important upper troposphere–lower stratosphere (UTLS) are critical for understanding controls on cloud formation, the entry of water into the stratosphere, and hydration–dehydration of the tropical tropopa
Externí odkaz:
https://doaj.org/article/4fd76c7373f94c78a67c711f2c18dad5
Autor:
S. M. Khaykin, E. Moyer, M. Krämer, B. Clouser, S. Bucci, B. Legras, A. Lykov, A. Afchine, F. Cairo, I. Formanyuk, V. Mitev, R. Matthey, C. Rolf, C. E. Singer, N. Spelten, V. Volkov, V. Yushkov, F. Stroh
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 3169-3189 (2022)
The Asian monsoon anticyclone (AMA) represents one of the wettest regions in the lower stratosphere (LS) and is a key contributor to the global annual maximum in LS water vapour. While the AMA wet pool is linked with persistent convection in the regi
Externí odkaz:
https://doaj.org/article/68ece59f37b24b0798a2fff8e28cc2e9
Autor:
H. Ziereis, P. Hoor, J.-U. Grooß, A. Zahn, G. Stratmann, P. Stock, M. Lichtenstern, J. Krause, V. Bense, A. Afchine, C. Rolf, W. Woiwode, M. Braun, J. Ungermann, A. Marsing, C. Voigt, A. Engel, B.-M. Sinnhuber, H. Oelhaf
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 3631-3654 (2022)
During winter 2015/2016, the Arctic stratosphere was characterized by extraordinarily low temperatures in connection with a very strong polar vortex and with the occurrence of extensive polar stratospheric clouds. From mid-December 2015 until mid-Mar
Externí odkaz:
https://doaj.org/article/114e769e1f8d40a28f31efa7ed994950
Autor:
C. Mahnke, R. Weigel, F. Cairo, J.-P. Vernier, A. Afchine, M. Krämer, V. Mitev, R. Matthey, S. Viciani, F. D'Amato, F. Ploeger, T. Deshler, S. Borrmann
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 15259-15282 (2021)
The Asian summer monsoon is an effective pathway for aerosol particles and precursors from the planetary boundary layer over Central, South, and East Asia into the upper troposphere and lower stratosphere. An enhancement of aerosol particles within t
Externí odkaz:
https://doaj.org/article/a1e1b4ae270b43538cef91b17919a8d6
Autor:
R. Weigel, C. Mahnke, M. Baumgartner, M. Krämer, P. Spichtinger, N. Spelten, A. Afchine, C. Rolf, S. Viciani, F. D'Amato, H. Tost, S. Borrmann
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 13455-13481 (2021)
From 27 July to 10 August 2017, the airborne StratoClim mission took place in Kathmandu, Nepal, where eight mission flights were conducted with the M-55 Geophysica up to altitudes of 20 km. New particle formation (NPF) was identified by the abundant
Externí odkaz:
https://doaj.org/article/f255b9316de14785bda3018bff13f08f
Autor:
M. Krämer, C. Rolf, N. Spelten, A. Afchine, D. Fahey, E. Jensen, S. Khaykin, T. Kuhn, P. Lawson, A. Lykov, L. L. Pan, M. Riese, A. Rollins, F. Stroh, T. Thornberry, V. Wolf, S. Woods, P. Spichtinger, J. Quaas, O. Sourdeval
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 12569-12608 (2020)
This study presents airborne in situ and satellite remote sensing climatologies of cirrus clouds and humidity. The climatologies serve as a guide to the properties of cirrus clouds, with the new in situ database providing detailed insights into borea
Externí odkaz:
https://doaj.org/article/084d6b4d515c4419a192f31ab58ff95e