Zobrazeno 1 - 10
of 255
pro vyhledávání: '"C. Simmer"'
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 14219-14237 (2023)
This study assimilates for the first time polarimetric C-band radar observations from the German meteorological service (DWD) into DWD's convective-scale model ICON-D2 using DWD's ensemble-based KENDA assimilation framework. We compare the assimilati
Externí odkaz:
https://doaj.org/article/bc494757ae8a45ab92fc141081157a6e
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 7593-7618 (2022)
Ensemble simulations with the Terrestrial Systems Modelling Platform (TSMP) covering northwestern Germany are evaluated for three summertime convective storms using polarimetric X-band radar measurements. Using a forward operator, the simulated micro
Externí odkaz:
https://doaj.org/article/c9095586d80e4e68bf9454635c67abe5
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
Autor:
B. Schalge, G. Baroni, B. Haese, D. Erdal, G. Geppert, P. Saavedra, V. Haefliger, H. Vereecken, S. Attinger, H. Kunstmann, O. A. Cirpka, F. Ament, S. Kollet, I. Neuweiler, H.-J. Hendricks Franssen, C. Simmer
Publikováno v:
Earth System Science Data, Vol 13, Pp 4437-4464 (2021)
Coupled numerical models, which simulate water and energy fluxes in the subsurface–land-surface–atmosphere system in a physically consistent way, are a prerequisite for the analysis and a better understanding of heat and matter exchange fluxes at
Externí odkaz:
https://doaj.org/article/70a1e66884c542babf0f0b73e666c6c7
Publikováno v:
Hydrology and Earth System Sciences, Vol 24, Pp 1957-1973 (2020)
Microwave remote sensing is the most promising tool for monitoring near-surface soil moisture distributions globally. With the Soil Moisture and Ocean Salinity (SMOS) and Soil Moisture Active Passive (SMAP) missions in orbit, considerable efforts are
Externí odkaz:
https://doaj.org/article/59ef8868a09c49faa5a4db7d141d0a39
Autor:
J. Dias Neto, S. Kneifel, D. Ori, S. Trömel, J. Handwerker, B. Bohn, N. Hermes, K. Mühlbauer, M. Lenefer, C. Simmer
Publikováno v:
Earth System Science Data, Vol 11, Pp 845-863 (2019)
This paper describes a 2-month dataset of ground-based triple-frequency (X, Ka, and W band) Doppler radar observations during the winter season obtained at the Jülich ObservatorY for Cloud Evolution Core Facility (JOYCE-CF), Germany. All relevant po
Externí odkaz:
https://doaj.org/article/4dc9494e81c249fc995015a3d119dba5
Autor:
A. Macke, P. Seifert, H. Baars, C. Barthlott, C. Beekmans, A. Behrendt, B. Bohn, M. Brueck, J. Bühl, S. Crewell, T. Damian, H. Deneke, S. Düsing, A. Foth, P. Di Girolamo, E. Hammann, R. Heinze, A. Hirsikko, J. Kalisch, N. Kalthoff, S. Kinne, M. Kohler, U. Löhnert, B. L. Madhavan, V. Maurer, S. K. Muppa, J. Schween, I. Serikov, H. Siebert, C. Simmer, F. Späth, S. Steinke, K. Träumner, S. Trömel, B. Wehner, A. Wieser, V. Wulfmeyer, X. Xie
Publikováno v:
Atmospheric Chemistry and Physics, Vol 17, Iss 7, Pp 4887-4914 (2017)
The HD(CP)2 Observational Prototype Experiment (HOPE) was performed as a major 2-month field experiment in Jülich, Germany, in April and May 2013, followed by a smaller campaign in Melpitz, Germany, in September 2013. HOPE has been designed to provi
Externí odkaz:
https://doaj.org/article/f5e1793bddf14997b63f4e7f048b8a69
Publikováno v:
Atmospheric Chemistry and Physics, Vol 16, Pp 14231-14248 (2016)
We present a novel approach for dense 3-D cloud reconstruction above an area of 10 × 10 km2 using two hemispheric sky imagers with fisheye lenses in a stereo setup. We examine an epipolar rectification model designed for fisheye cameras, which al
Externí odkaz:
https://doaj.org/article/f70f0d9c5b9d4d24b86b099806777f49
Publikováno v:
Atmospheric Chemistry and Physics, Vol 16, Pp 7105-7116 (2016)
This study presents a first analysis of precipitation and related microphysical processes observed by three polarimetric X-band Doppler radars (BoXPol, JuXPol and KiXPol) in conjunction with a ground-based network of disdrometers, rain gauges and
Externí odkaz:
https://doaj.org/article/c656d8ae8b4646a4a5f6c261afba184a
Publikováno v:
Hydrology and Earth System Sciences, Vol 19, Iss 10, Pp 4317-4326 (2015)
The hydrological component of the Terrestrial Systems Modeling Platform (TerrSysMP), which includes integrated surface-groundwater flow, was used to investigate the grid resolution dependence of simulated soil moisture, soil temperature, and surface
Externí odkaz:
https://doaj.org/article/0b44da710ad2466691ea89a1ebcc29c9