LONG-TERM DYNAMICS OF ABUNDANCE IN THE GREY PARTRIDGE PERDIX PERDIX UNDER THE INFLUENCE OF WEATHER CONDITIONS IN THE STEPPE SOUTH CIS-URALS: A CASE STUDY OF ORENBURG RESERVE BURTINSKAYA STEPPE

2019 ◽  
pp. 28-33
Author(s):  
Е.V. Barbazyuk
Keyword(s):  
Weather Conditions ◽  
Dynamics Of Abundance ◽  
Perdix Perdix ◽  
Grey Partridge

scholarly journals Spatial Development of the 1507–1510 Plague in Poland and Its Consequences. Kalisz District Case Study

2020 ◽  
Vol 13 (1-2) ◽  
pp. 1-12
Author(s):  
Tomasz Związek
Keyword(s):  
Weather Conditions ◽  
Pollen Data ◽  
Climatic Extremes ◽  
Basic Goods ◽  
Droughts And Floods ◽  
Rural Sites ◽  
Long Term Impact ◽  
Settlement Changes

AbstractThe article discusses the causes and effects of the plague which is said to have spread over many Polish towns in 1507. The focus is on its possible causes, related to the occurrence of droughts and floods in Central Europe in the late 15th and early 16th century. Available sources from the late mediaeval period have also been analysed for the recorded perceptions of the extreme climatic and weather conditions. Special attention has been paid to the issues of intensity and spatial distribution of the effects of the plague on the example of one district. The analysis covered a variety of issues such as settlement changes, prices of basic goods or even some pollen data. The main results of the study indicate that the climatic extremes at the turn of the 16th century exerted a long-term impact on the society and economy of the region. They also contributed to the abandonment of settlements on rural sites.

scholarly journals Comparison of long-term Moscow and Danish NLC observations: statistical results

2006 ◽  
Vol 24 (11) ◽  
pp. 2841-2849 ◽  
Author(s):  
P. Dalin ◽  
S. Kirkwood ◽  
H. Andersen ◽  
O. Hansen ◽  
N. Pertsev ◽  
...  
Keyword(s):  
Weather Conditions ◽  
Noctilucent Clouds ◽  
Characteristic Scale ◽  
Careful Attention ◽  
Data Set ◽  
First Time ◽  
Term Data ◽  
Statistical Results

Abstract. Noctilucent clouds (NLC) are the highest clouds in the Earth's atmosphere, observed close to the mesopause at 80–90 km altitudes. Systematic NLC observations conducted in Moscow for the period of 1962–2005 and in Denmark for 1983–2005 are compared and statistical results both for seasonally summarized NLC parameters and for individual NLC appearances are described. Careful attention is paid to the weather conditions during each season of observations. This turns out to be a very important factor both for the NLC case study and for long-term data set analysis. Time series of seasonal values show moderate similarity (taking into account the weather conditions) but, at the same time, the comparison of individual cases of NLC occurrence reveals substantial differences. There are positive trends in the Moscow and Danish normalized NLC brightness as well as nearly zero trend in the Moscow normalized NLC occurrence frequency but these long-term changes are not statistically significant. The quasi-ten-year cycle in NLC parameters is about 1 year shorter than the solar cycle during the same period. The characteristic scale of NLC fields is estimated for the first time and it is found to be less than 800 km.

scholarly journals The Influence of Weather Conditions on the Optimal Setting of Photovoltaic Thermal Hybrid Solar Collectors—A Case Study

Energies ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4612
Author(s):  
Ryszard Myhan ◽  
Karolina Szturo ◽  
Monika Panfil ◽  
Zbigniew Szwejkowski
Keyword(s):  
Elevation Angle ◽  
Apparent Movement ◽  
Weather Conditions ◽  
Weather Data ◽  
Solar Collectors ◽  
Optimization Task ◽  
Radiation Properties ◽  
Optimal Setting

The potential absorption of solar energy in photovoltaic thermal (PVT) hybrid solar collectors at different tilt angles was compared in the present study. The optimal tilt angles were tested in three variants: during 1 day, 1 year and a period of 30 years. Simulations were performed based on actual weather data for 30 years, including average hourly total radiation, insolation and air temperature. The apparent movement of the Sun across the sky, solar radiation properties, and the electrical and thermal efficiency of a PVT collector were also taken into account in the simulation model. The optimal orientation of the absorber surface was determined by solving an optimization task. The results of the study indicate that in the long-term perspective, the collector’s performance is maximized when the absorber is positioned toward the south at an elevation angle of 34.1°.

scholarly journals Influence of peat soils on runoff process: case study of Vydra River headwaters, Czechia

Geografie ◽  
2016 ◽  
Vol 121 (2) ◽  
pp. 235-253 ◽  
Author(s):  
Lukáš Vlček ◽  
Jan Kocum ◽  
Bohumír Janský ◽  
Luděk Šefrna ◽  
Šárka Blažková
Keyword(s):  
Groundwater Level ◽  
Weather Conditions ◽  
Peat Bog ◽  
Flood Wave ◽  
Peat Soils ◽  
Rainfall Events ◽  
Forest Coverage

This paper summarizes findings from the hydrological research in the Vydra River headwaters, the Šumava Mts., s-w Czechia, dealing with the hydrological function of local peat soils and their effect on the outflow from the basin. This study represents a part of a long-term research carried out at the Faculty of Science, Charles University in Prague. The paper shows how important it is to study the groundwater level in peat soils and its area in a catchment as well as to predict the outflow in distinct weather conditions. There were chosen four small experimental catchments with different peat and waterlogged forest coverage. Rainfall events were selected in various periods within a year with a varying groundwater level (maximum and minimum) in the peat bog. Within these situations flood wave volumes were calculated and all of them were compared regarding the peat bog extension. The presented research also compares various sources of data about peat soils areas and areas of waterlogged forest.

Caregivers' Perceptions of Speech-Language Pathologist Talk About Child Language and Literacy Disorders

2020 ◽  
Vol 29 (4) ◽  
pp. 2049-2067
Author(s):  
Karmen L. Porter ◽  
Janna B. Oetting ◽  
Loretta Pecchioni
Keyword(s):  
Language And Literacy ◽  
Collective Case Study ◽  
Study Approach ◽  
School Aged Children ◽  
Speech Language Pathologist ◽  
Therapy Goals ◽  
Semistructured Interviews ◽  
Types Of Information

Purpose This study examined caregiver perceptions of their child's language and literacy disorder as influenced by communications with their speech-language pathologist. Method The participants were 12 caregivers of 10 school-aged children with language and literacy disorders. Employing qualitative methods, a collective case study approach was utilized in which the caregiver(s) of each child represented one case. The data came from semistructured interviews, codes emerged directly from the caregivers' responses during the interviews, and multiple coding passes using ATLAS.ti software were made until themes were evident. These themes were then further validated by conducting clinical file reviews and follow-up interviews with the caregivers. Results Caregivers' comments focused on the types of information received or not received, as well as the clarity of the information. This included information regarding their child's diagnosis, the long-term consequences of their child's disorder, and the connection between language and reading. Although caregivers were adept at describing their child's difficulties and therapy goals/objectives, their comments indicated that they struggled to understand their child's disorder in a way that was meaningful to them and their child. Conclusions The findings showed the value caregivers place on receiving clear and timely diagnostic information, as well as the complexity associated with caregivers' understanding of language and literacy disorders. The findings are discussed in terms of changes that could be made in clinical practice to better support children with language and literacy disorders and their families.

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