Zobrazeno 1 - 10
of 160
pro vyhledávání: '"S. Kneifel"'
Autor:
G. Chellini, R. Gierens, K. Ebell, T. Kiszler, P. Krobot, A. Myagkov, V. Schemann, S. Kneifel
Publikováno v:
Earth System Science Data, Vol 15, Pp 5427-5448 (2023)
We present a comprehensive quality-controlled 15-month dataset of remote sensing observations of low-level mixed-phase clouds (LLMPCs) taken at the high Arctic site of Ny-Ålesund, Svalbard, Norway. LLMPCs occur frequently in the Arctic region and ex
Externí odkaz:
https://doaj.org/article/e881462da5424f0387c62fdec0f0ae6c
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 12467-12491 (2022)
Riming of ice crystals by supercooled water droplets is an efficient ice growth process, but its basic properties are still poorly known. While it has been shown to contribute significantly to surface precipitation at mid-latitudes, little is known a
Externí odkaz:
https://doaj.org/article/ec752cac02f14f4abec7526aca75630d
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 11795-11821 (2022)
The dendritic growth layer (DGL), defined as the temperature region between −20 and −10 ∘C, plays an important role for ice depositional growth, aggregation and potentially secondary ice processes. The DGL has been found in the past to exhibit
Externí odkaz:
https://doaj.org/article/9683f225a7284ae38a4acfb1cce7b212
Publikováno v:
Atmospheric Measurement Techniques, Vol 15, Pp 365-381 (2022)
Riming, i.e., the accretion and freezing of supercooled liquid water (SLW) on ice particles in mixed-phase clouds, is an important pathway for precipitation formation. Detecting and quantifying riming using ground-based cloud radar observations is of
Externí odkaz:
https://doaj.org/article/c079878c48e04408a60a8ba7f0708263
Autor:
S. Trömel, C. Simmer, U. Blahak, A. Blanke, S. Doktorowski, F. Ewald, M. Frech, M. Gergely, M. Hagen, T. Janjic, H. Kalesse-Los, S. Kneifel, C. Knote, J. Mendrok, M. Moser, G. Köcher, K. Mühlbauer, A. Myagkov, V. Pejcic, P. Seifert, P. Shrestha, A. Teisseire, L. von Terzi, E. Tetoni, T. Vogl, C. Voigt, Y. Zeng, T. Zinner, J. Quaas
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 17291-17314 (2021)
Cloud and precipitation processes are still a main source of uncertainties in numerical weather prediction and climate change projections. The Priority Programme “Polarimetric Radar Observations meet Atmospheric Modelling (PROM)”, funded by the G
Externí odkaz:
https://doaj.org/article/4853a1a108c64acaa8e1dd177e431a3f
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 17133-17166 (2021)
Aggregation is a key microphysical process for the formation of precipitable ice particles. Its theoretical description involves many parameters and dependencies among different variables that are either insufficiently understood or difficult to accu
Externí odkaz:
https://doaj.org/article/32ffbac391f24e1eae046d555aece1ef
Publikováno v:
Geoscientific Model Development, Vol 14, Pp 1511-1531 (2021)
More detailed observational capabilities in the microwave (MW) range and advancements in the details of microphysical schemes for ice and snow demand increasing complexity to be included in scattering databases. The majority of existing databases rel
Externí odkaz:
https://doaj.org/article/95da443f0e14421c8f7e51fb97fda538
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 511-529 (2021)
This study investigates the link between rain and ice microphysics across the melting layer in stratiform rain systems using measurements from vertically pointing multi-frequency Doppler radars. A novel methodology to examine the variability of the p
Externí odkaz:
https://doaj.org/article/de09e7dc52b44f4091099572bf865a33
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 12633-12653 (2020)
Ice clouds and falling snow are ubiquitous globally and play important roles in the Earth's radiation budget and precipitation processes. Ice particle microphysical properties (e.g., size, habit and orientation) are not only influenced by the ambient
Externí odkaz:
https://doaj.org/article/d8bad2f94968409980a3bf4ab427bc59
Publikováno v:
Atmospheric Measurement Techniques, Vol 13, Pp 5799-5825 (2020)
This study presents two methods for evaluating the reflectivity calibration of W-band cloud radars. Both methods use natural rain as a reference target. The first approach is based on a self-consistency method of polarimetric radar variables, which i
Externí odkaz:
https://doaj.org/article/b9dcdfdace3b4b8795180a8dcc830a59