Temperature extremes and circulation types in the Czech Republic, 1961–2020

2021 ◽  
Author(s):  
Pavel Zahradníček ◽  
Rudolf Brázdil ◽  
Jan Řehoř ◽  
Ondřej Lhotka ◽  
Petr Dobrovolný ◽  
...  
Keyword(s):  
Czech Republic ◽  
Temperature Extremes ◽  
The Czech Republic ◽  
Circulation Types

scholarly journals Circulation and Climate Variability in the Czech Republic between 1961 and 2020: A Comparison of Changes for Two “Normal” Periods

Atmosphere ◽  
2022 ◽  
Vol 13 (1) ◽  
pp. 137
Author(s):  
Rudolf Brázdil ◽  
Pavel Zahradníček ◽  
Petr Dobrovolný ◽  
Jan Řehoř ◽  
Miroslav Trnka ◽  
...  
Keyword(s):  
Czech Republic ◽  
Sunshine Duration ◽  
Statistical Significance ◽  
Statistical Characteristics ◽  
The Czech Republic ◽  
Circulation Types ◽  
Recent Climate ◽  
Normal Period ◽  
Objective Classification ◽  
Climatic Characteristics

Thirty-year periods are treated in climatology as spans with relatively representative and stable climatic patterns, which can be used for calculating climate normals. Annual and seasonal series of circulation types were used to compare two 30-year sub-periods, 1961–1990 and 1991–2020, the second one being strongly influenced by recent global warming. This analysis was conducted according to the objective classification of circulation types and the climatic characteristics of sunshine duration, temperature, humidity, precipitation, and wind speed as calculated for the territory of the Czech Republic during the 1961–2020 period. For both sub-periods, their statistical characteristics were calculated, and the statistical significance of differences between them was evaluated. There was a statistically significant increase in the annual frequencies of anticyclonic circulation types and a significant decrease in cyclonic circulation types during 1991–2020 compared with 1961–1990. Generally, in both 30-year periods, significant differences in means, variability, characteristics of distribution, density functions, and linear trends appear for all climatic variables analysed except precipitation. This indicates that the recent 30-year “normal” period of 1991–2020, known to be influenced more by recent climate change, is by its climatic characteristics unrepresentative of the stable climatic patterns of previous 30-year periods.

High temperature extremes in the Czech Republic 1961–2010 and their synoptic variants

2015 ◽  
Vol 127 (1-2) ◽  
pp. 17-29 ◽  
Author(s):  
A. Valeriánová ◽  
L. Crhová ◽  
E. Holtanová ◽  
M. Kašpar ◽  
M. Müller ◽  
...  
Keyword(s):  
Czech Republic ◽  
High Temperature ◽  
Temperature Extremes ◽  
The Czech Republic ◽  
High Temperature Extremes

scholarly journals Compound Temperature and Precipitation Events in the Czech Republic: Differences of Stratiform versus Convective Precipitation in Station and Reanalysis Data

Atmosphere ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 87
Author(s):  
Zuzana Rulfová ◽  
Romana Beranová ◽  
Eva Plavcová
Keyword(s):  
Czech Republic ◽  
Extreme Temperature ◽  
Reanalysis Data ◽  
Circulation Type ◽  
Convective Precipitation ◽  
The Czech Republic ◽  
Circulation Types ◽  
Station Data ◽  
Stratiform Precipitation ◽  
Compound Events

Some natural hazards may result from the coincidences of anomalies of different climatic variables. These so-called compound events can cause extreme impacts. This study analyzes compounds of extreme temperature with notable convective and stratiform precipitation in the Czech Republic during 1982–2016. Characteristics of compound events obtained from 11 stations’ data are compared with those from the gridded ERA-Interim reanalysis. We found that notable stratiform precipitation frequently coincides with warm nights and warm days in winter but with cold days in the other seasons. While the winter stratiform precipitation coinciding with warm days and warm nights is linked to anticyclonic, southwest, northwest, and anticyclonic-northwest circulation types, the northeast type is the most crucial circulation type linked to notable stratiform precipitation coinciding with cold days in all seasons except winter. The compound events of notable convective precipitation occur most frequently in summer and they are joined mainly with warm days. These compound events are associated with anticyclonic, cyclonic, and northwest circulation types. Although the number of days with stratiform compound events is larger in ERA-Interim than in the station data, the results are qualitatively comparable. ERA-Interim is, however, not able to reproduce convective compound events obtained from the station data.

scholarly journals Precipitation in the Czech Republic in Light of Subjective and Objective Classifications of Circulation Types

Atmosphere ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1536
Author(s):  
Jan Řehoř ◽  
Rudolf Brázdil ◽  
Ondřej Lhotka ◽  
Miroslav Trnka ◽  
Jan Balek ◽  
...  
Keyword(s):  
Czech Republic ◽  
Central Europe ◽  
Flow Direction ◽  
Flow Strength ◽  
Summer Circulation ◽  
The Czech Republic ◽  
Circulation Types ◽  
Circulation Patterns ◽  
Objective Classification

Many studies in Europe have investigated the relationship between climatological variables and circulation patterns expressed by various classifications of circulation types. This study provides new insights based on an analysis of precipitation in the western (Bohemia—BOH) and eastern (Moravia and Silesia—M&S) parts of the Czech Republic with respect to the subjective classification of the Czech Hydrometeorological Institute and objective classification based on the flow strength, flow direction, and vorticity during the 1961–2020 period. Circulation types are investigated in regard to their contributions to the total precipitation, mean daily precipitation totals, and precipitation probability (daily totals ≥ 1.0 mm). Types with a westerly airflow and a trough over Central Europe exhibit the highest proportions in precipitation totals. Types with a cyclone over Central Europe, especially combined with a northwestern (BOH) or northeastern (M&S) airflow, result in the highest daily mean totals and precipitation probability. Types with a southwestern airflow transport more precipitation to BOH, while those with a northeastern airflow transport more precipitation to M&S, with a slight seasonal shift in the gradient axis between winter and summer. Circulation types under both classifications are examined from the perspective of their precipitation representation in BOH and M&S and the differences between these two regions. In addition, the suitability of both classifications for precipitation analysis is investigated.

Social variation in size at birth and preterm delivery in the Czech Republic and Sweden, 1989-91

1998 ◽  
Vol 12 (1) ◽  
pp. 7-24 ◽  
Author(s):  
Koupilova ◽  
Vagero ◽  
Leon ◽  
Pikhart ◽  
Prikazsky ◽  
...  
Keyword(s):  
Czech Republic ◽  
Preterm Delivery ◽  
The Czech Republic ◽  
Social Variation ◽  
Size At Birth

On Geropsychology in the Czech Republic

GeroPsych ◽  
2012 ◽  
Vol 25 (3) ◽  
pp. 161-166
Author(s):  
Hana Stepankova ◽  
Eva Jarolimova ◽  
Eva Dragomirecka ◽  
Irena Sobotkova ◽  
Lenka Sulova ◽  
...  
Keyword(s):  
Czech Republic ◽  
Clinical Practice ◽  
Old Age ◽  
Cognitive Rehabilitation ◽  
The Czech Republic ◽  
Rehabilitation Research

This work provides an overview of psychology of aging and old age in the Czech Republic. Historical roots as well as recent activities are listed including clinical practice, cognitive rehabilitation, research, and the teaching of geropsychology.

Contemporary Psychology in the Czech Republic

2000 ◽  
Vol 5 (1) ◽  
pp. 62-65 ◽  
Author(s):  
Jiří Hoskovec ◽  
Josef M. Brožek
Keyword(s):  
Czech Republic ◽  
The Czech Republic
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