Zobrazeno 1 - 10
of 123
pro vyhledávání: '"U. Löhnert"'
Autor:
S. Schnitt, A. Foth, H. Kalesse-Los, M. Mech, C. Acquistapace, F. Jansen, U. Löhnert, B. Pospichal, J. Röttenbacher, S. Crewell, B. Stevens
Publikováno v:
Earth System Science Data, Vol 16, Pp 681-700 (2024)
During the EUREC4A field study, microwave radiometric measurements were performed at Barbados Cloud Observatory (BCO) and aboard RV Meteor and RV Maria S Merian in the downstream winter trades of the North Atlantic. We present retrieved integrated wa
Externí odkaz:
https://doaj.org/article/97ac337fdfc9477ca083541504a80226
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 219-233 (2024)
In order to improve observations of the atmospheric boundary layer (ABL), the European Meteorological Network, EUMETNET, and the Aerosol, Clouds, and Trace Gases Research Infrastructure, ACTRIS, are currently working on building networks of microwave
Externí odkaz:
https://doaj.org/article/6b8e3e84e48e45c3af129e4624094b46
Publikováno v:
Advances in Science and Research, Vol 20, Pp 65-71 (2023)
As the frequency of extreme heat events in cities is significantly increasing due to climate change, the implementation of adaptation measures is important for urban planning. Microclimate modelling approaches enable scenario analyses and evaluations
Externí odkaz:
https://doaj.org/article/3b4ee285f20843a7b598aaf73aca376b
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 12241-12267 (2022)
Marine stratocumulus clouds of the eastern Pacific play an essential role in the earth's energy and radiation budget. Parts of these clouds off the western coast of South America form the major source of water to the hyperarid Atacama Desert coastal
Externí odkaz:
https://doaj.org/article/d7e45f996b334937b0f6279b2c7fb252
Publikováno v:
Atmospheric Measurement Techniques, Vol 15, Pp 3243-3260 (2022)
Doppler wind lidars (DWLs) have increasingly been used over the last decade to derive the mean wind in the atmospheric boundary layer. DWLs allow the determination of wind vector profiles with high vertical resolution and provide an alternative to cl
Externí odkaz:
https://doaj.org/article/976e7feba99d409499a9bc17ac2be7a2
Autor:
D. D. Turner, U. Löhnert
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 3033-3048 (2021)
Thermodynamic profiles in the planetary boundary layer (PBL) are important observations for a range of atmospheric research and operational needs. These profiles can be retrieved from passively sensed spectral infrared (IR) or microwave (MW) radiance
Externí odkaz:
https://doaj.org/article/0b1133a942fc4c32baeb54d06d605a51
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 5157-5173 (2020)
The occurrence of events with increased and decreased integrated water vapor (IWV) at the Arctic site Ny-Ålesund, their relation to cloud properties, and the surface cloud radiative effect (CRE) is investigated. For this study, we used almost 2.5 ye
Externí odkaz:
https://doaj.org/article/904865958a0b4c898d87600ef43fbef1
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 3459-3481 (2020)
Low-level mixed-phase clouds (MPCs) are common in the Arctic. Both local and large-scale phenomena influence the properties and lifetime of MPCs. Arctic fjords are characterized by complex terrain and large variations in surface properties. Yet, not
Externí odkaz:
https://doaj.org/article/99eeb043707643b68d3c8e95a3d5e7ad
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 1723-1736 (2020)
Finding observational evidence of land surface and atmosphere interactions is crucial for understanding the spatial and temporal evolution of the boundary layer, as well as for model evaluation, and in particular for large-eddy simulation (LES) model
Externí odkaz:
https://doaj.org/article/89562ad2412c4a6398c619947d686926
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 4105-4126 (2019)
The French–German Arctic research base AWIPEV (the Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research – AWI – and the French Polar Institute Paul Emile Victor – PEV) at Ny-Ålesund, Svalbard, is a unique station for monit
Externí odkaz:
https://doaj.org/article/1ca41025d51044eeae0542459a3254d5