Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Ólafur Rögnvaldsson"'
Publikováno v:
Tellus: Series A, Dynamic Meteorology and Oceanography, Vol 66, Iss 0, Pp 1-15 (2014)
Orographic winds near a 914 m high mountain in Southwest-Iceland are explored using unique observations made aloft with a small remotely piloted aircraft, as well as with traditional observations and high-resolution atmospheric simulations. There was
Externí odkaz:
https://doaj.org/article/ddbc97eadadd4ee1b895a266c1272648
Publikováno v:
Meteorologische Zeitschrift, Vol 16, Iss 1, Pp 71-85 (2007)
Atmospheric flow over Iceland has been simulated for the period September 1987 through June 2003, using the PSU/NCAR MM5 mesoscale model driven by initial and boundary data from the European Centre for Medium-range Weather Forecasts (ECMWF). The simu
Externí odkaz:
https://doaj.org/article/9451341051364df1bda665ac857f9afb
Publikováno v:
Meteorologische Zeitschrift, Vol 16, Iss 1, Pp 87-98 (2007)
This paper presents a study of the sensitivity of numerically simulated precipitation across a mesoscale mountain range to horizontal resolution, cloud condensation nuclei (CCN) spectrum, initiation of cloud ice, numerical treatment of horizontal dif
Externí odkaz:
https://doaj.org/article/9d464d7faeb442fba4789db1b591c60a
Publikováno v:
Meteorologische Zeitschrift, Vol 13, Iss 3, Pp 209-219 (2004)
Precipitation in Iceland during a period of 10 years is simulated with the PSU/NCAR MM5 model. The results are compared with precipitation estimated by a statistical model based on observations and a number of topographic and geographic predictors. T
Externí odkaz:
https://doaj.org/article/1a2cd80e4add461780de25bdc8de18e8
Belgingur Ltd. has created a novel weather forecasting framework, called Weather On Demand – WOD, that can be deployed in the cloud and customised for any location world-wide at a very short notice. A recent addition to the WOD system is a routing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::987fbc2154d3060558d3aafdd261bfd4
https://doi.org/10.5194/egusphere-egu23-17383
https://doi.org/10.5194/egusphere-egu23-17383
During the Fagradalsfjall volcanic eruption in Iceland in 2021, the atmospheric flow was simulated at high-spatial and temporal resolutions with the numerical system WRF, including the WRF-Chem for the simulation of trace gases and aerosols. The outp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c4fce9ea30760d5df90e29d7ab80c68
https://doi.org/10.5194/egusphere-egu22-11386
https://doi.org/10.5194/egusphere-egu22-11386
Autor:
Ólafur Rögnvaldsson, Haraldur Ólafsson, Hálfdán Ágústsson, Marius Opsanger Jonassen, Joachim Reuder
Publikováno v:
Monthly Weather Review. 140:3734-3756
In this study, it is demonstrated how temperature, humidity, and wind profile data from the lower troposphere obtained with a lightweight unmanned aerial system (UAS) can be used to improve high-resolution numerical weather simulations by four-dimens
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7419a5e1bb64934b99121c22dc6b37ce
https://doi.org/10.1175/mwr-d-11-00344.1
https://doi.org/10.1175/mwr-d-11-00344.1
Autor:
Markus Ablinger, Marius Opsanger Jonassen, Rafael Kuhnel, Stephanie Mayer, Martin Müller, Tor E. de Lange, Sylvie Malardel, Sveinn Brynjólfsson, Stephan Lämmlein, Christian Lindenberg, Hálfdán Ágústsson, Ólafur Rögnvaldsson, Pascal Brisset, Joachim Reuder, Günther Zängl, Wolfgang Schäper, Tómas Jóhannesson, Thomas Spengler, Haraldur Ólafsson, Joseph Egger, Markus Garhammer
Publikováno v:
Meteorology and Atmospheric Physics
The FLOHOF field campaign took place in the period July 21 to August 24, 2007 on and in the surroundings of Hofsjökull glacier in Central Iceland. During the campaign, 18 automatic weather stations (AWS) recording temperature, humidity, wind speed,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::176d94182f6bb9a69ce340c36288cec8
https://doi.org/10.1007/s00703-010-0118-4
https://doi.org/10.1007/s00703-010-0118-4
Publikováno v:
Atmospheric Chemistry and Physics Discussions
Atmospheric Chemistry and Physics Discussions, European Geosciences Union, 2008, 8 (2), pp.6437-6468
Atmospheric Chemistry and Physics, Vol 11, Iss 1, Pp 103-120 (2011)
Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics Discussions, European Geosciences Union, 2008, 8 (2), pp.6437-6468
Atmospheric Chemistry and Physics, Vol 11, Iss 1, Pp 103-120 (2011)
Atmospheric Chemistry and Physics
A severe windstorm downstream of Mnt. Öræfajökull in Southeast Iceland is simulated on a grid of 1 km horizontal resolution by using the PSU/NCAR MM5 model and the Advanced Research WRF model. Both models are run with a new, two equation planetary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae549cd821b6423d18f84f6217afa5c1
https://doi.org/10.5194/acp-11-103-2011
https://doi.org/10.5194/acp-11-103-2011
Publikováno v:
Hydrology Research. 41:164-170
Atmospheric flow over Iceland has been simulated for the period January 1961 to July 2006, using the mesoscale MM5 model driven by initial and boundary data from the ECMWF. A systematic comparison of results to observed precipitation has been carried
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0962bfc80608f5035b5a091cfccd9332
https://doi.org/10.2166/nh.2010.133
https://doi.org/10.2166/nh.2010.133