Institute of Atmospheric Physics

Institute of Atmospheric Physics 274 records found  beginprevious265 - 274  jump to record: Search took 0.00 seconds. 
Role of local factors in formation and development of radiation fog
Potužníková, Kateřina
At the Institute of Atmospheric Physics in Prague, the 1-D atmospheric boundary layer (ABL) model has been designed to study the development of ABL structure. The model parameterisations include the atmospheric radiative transfer, the condensation process and the soil-vegetation-atmospheretransfer so that the model is able to predict the occurrence and evolution of radiation fog. The fog formation, development and dissipation are strongly influenced by local factors, such as soil and vegetation characteristics (albedo, moisture, heat conductivity, and especially vegetation height and coverage). Model simulations of the impact of different vegetation covering, soil moisture, occurrence of middle clouds and wind velocity on the ABL state and on the life cycle of radiation fog is presented.
Possibilities of construction of future scenarios of heat related mortality in the Czech Republic and their limitations
Kyselý, Jan ; Huth, Radan
The paper deals with potential impacts of the greenhouse gas induced climate change on heat related mortality in the Czech Republic, based on scenarios of the summer temperature increase in 2050 and simulations with a stochastic model.
Koncentrace polutantů v mlžné vodě v závislosti na proudění vzduchu v hladině 850 hPa
Fišák, Jaroslav ; Řezáčová, Daniela ; Fottová, D. ; Potužníková, Kateřina
The negative impact of pollutant concentration in fog water on the environment and consequently on the health of population was proved by numerous studies. Recently, the investigation has been focused on the pollutant concentration in fog water from several points of view. In this paper we briefly summarizethe results of clustering the fog water samples according to the enrichment factor and establishing the link of clusters and the air flow at 850 hPa level
The similar fogwater samples and the air flow direction at 850 hPa level
Fišák, Jaroslav ; Weignerová, Veronika ; Řezáčová, Daniela ; Potužníková, Kateřina
Cluster analysis was applied to fog/cloud water samples to establish clusters with a similar enrichment by selected pollutants. It was proved that the clusters are related to the direction of airflow at the isobaric level 850 hPa. In addition, the position of the sampling site relative to the cloud system was considered but no systematic relation was found to the enrichment factor, except for the cluster of samples with Cl enrichment smaller than 0.75.

Institute of Atmospheric Physics : 274 records found   beginprevious265 - 274  jump to record:
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