Krzysztof Blazejczyk

Krzysztof Blazejczyk
Polish Academy of Sciences | PAN · Stanisław Leszczycki Institute of Geography and Spatial Organization

PhD

About

172
Publications
87,169
Reads
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3,501
Citations
Citations since 2016
40 Research Items
2564 Citations
20162017201820192020202120220100200300400500600
20162017201820192020202120220100200300400500600
20162017201820192020202120220100200300400500600
20162017201820192020202120220100200300400500600
Introduction
Human biometeorology in various landscapes. Use of UTCI and GIS methods. Bioclimate of European Mountain systems
Additional affiliations
October 2007 - present
University of Warsaw
Position
  • Professor Emeritus
January 2007 - present
University of Freiburg
Description
  • Developement of Universal Thermal Climate Index
October 1999 - September 2007
Kazimierz Wielki University in Bydgoszcz
Position
  • Head of Department of Physical Geography
Education
September 1985 - April 1994
Polish Academy of Sciences
Field of study
  • Earth Sciences
October 1975 - January 1981
Polish Academy of Sciences
Field of study
  • Climatology
October 1968 - June 1973
University of Warsaw
Field of study
  • Physical Geography

Publications

Publications (172)
Article
Full-text available
Artykuł identyfikuje fazy występowania zmian klimatu na obszarze Bliskiego Wschodu w dwóch perspektywach czasowych: 3000-0 BC oraz zmian współczesnych. W tym celu wykorzystano różne zbiory danych: 1) informacje zaczerpnięte z licznych badań i dokumentów archeologicznych i historycznych, 2) bazy indexu NAO i opadów atmosferycznych okresu zimowego (D...
Article
Full-text available
Background: Mountaineers must control and regulate their thermal comfort and heat balance to survive the rigors of high altitude environment. High altitudes feature low air pressure and temperatures, strong winds and intense solar radiation, key factors affecting an expedition’s success. All these climatic elements stress human heat balance and sur...
Article
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The occurrence of long-lasting severe heat stress, such as in July–August 2003, July 2010, or in April–May 2018 has been one of the biggest meteorological threats in Europe in recent years. The paper focuses on the biometeorological and mortality effects of the hot June that was observed in Central Europe in 2019. The basis of the study was hourly...
Article
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Artificial light has been present in human life for decades but our knowledge of its effects is still insufficient. Lighting lets us be active longer, gives us a sense of security and provides aesthetic experiences. Despite all of these advantages, in urban areas artificial light also has a negative effects on the environment and human life. Althou...
Article
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Full text article: https://rdcu.be/b5Fr9 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ The present study attempts to assess changes in soccer players’ physical and technical activ...
Chapter
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This paper assesses changes in bioclimatic conditions in Poland using two indices: the Universal Thermal Climate Index (UTCI) and Physiological Subjective Temperature (PST). The indices were calculated using the BioKlima 2.6 software package on the basis of several meteorological parameters (temperature, humidity, cloudiness, wind speed), measured...
Chapter
This chapter includes the results of the earliest studies on changes and variability of climatic elements, bioclimatic indices and weather types across Poland. The first pioneering works on climatic studies were presented (since 1858), even if they did not relate to climate change.
Article
Full-text available
Cold and heat stress are environmental factors influencing the state of health of individuals and the wider population. There is a large number of research to document significant increases in mortality and morbidity during cold and heat waves in every climate zone. In spite of the well-documented nature of heat/cold-related health problems, only i...
Presentation
Oceny właściwości leczniczych klimatu dokonuje się na podstawie udokumentowanych badań przeprowadzonych w okresie 24 miesięcy przed złożeniem wniosku o potwierdzenie tych właściwości (Rozporządzenie Ministra Zdrowia z dnia 5 października 2016 r. zmieniające Rozporządzenie w sprawie zakresu badań niezbędnych do ustalenia właściwości (...) leczniczyc...
Article
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Significant changes in climate variables in the last decades resulted in changes of perceived climate conditions. However, there are only few studies discussing long-lasting changes in bioclimatic conditions. Thus, the purpose of this paper is to present the temporal and spatial distribution of hazardous heat and cold stress conditions in different...
Article
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While significant increases in air temperature are being observed in the context of climate change, precipitation characteristics, indicators and indices seem to be changing in a more regionally-variable manner. High-mountain areas prove particularly subject to fluctuations and changes of climate, given that mountains serve as barriers to masses of...
Article
Full-text available
The assessment of thermal stress stimuli in Poland was based on the Universal Thermal Climate Index (UTCI). Daily values of UTCI at 24 stations selected to represent the whole area of Poland at 12:00 UTC were calculated over the period 1951-2018. Various UTCI characteristics, i.e., spatial averages of daily, monthly and annual values, daily spatial...
Article
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UTCI, although it was developed with the participation of scientists from 22 countries, it has shortcomings and people using it face various obstacles. The difficulties include wide range of issues: from different availability of meteorological data in individual countries, through the kind of air temperature which should be properly used in calcul...
Article
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Mountain areas create specific features of local climates (by modification of air circulation, insolation, air temperature, precipitation, wind regime) and greatly affect ambient weather conditions which influence different kinds of human (climbing, skiing, walking, etc.). However, till now only few studies of human bioclimate in individual mountai...
Article
The study detailed here has sought to assess the physical and technical activity engaged in by football players in the light of the direction of travel in which time zones were crossed as players transferred from training centres to match venues, in the context of matches played at the 2018 FIFA World Cup in Russia. The material consisted of 945 ob...
Article
Full-text available
While general features of mountain climate are well recognised, there is not many research regarded their bioclimatic differentiation. The aim of the present study is to answer the question how different geographical factors: elevation above sea level, physiographical type of area, climate continentality and location of area in relation to the main...
Article
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Outdoor tourism and recreational activities strongly depend on actual meteorological conditions. Traditionally, in three studied regions, the peak of tourists’ streams concentrates in summer months. In the present study, we assess suitability of weather conditions for various forms of outdoor tourism in different regions of Serbia, Poland and Ukrai...
Article
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In mountain areas, air circulation plays a major role in the forming of the climate. This paper examines how it influences thermal stress in the northern Carpathians. The Niedźwiedź’s classification of air circulation was applied. Thermal stress was assessed by Universal Thermal Climate Index (UTCI). Daily meteorological and circulation data for th...
Article
Full-text available
Chornohora is the highest mountain ridge in the Ukrainian Carpathians with 6 peaks of an altitude over 2,000 m above sea level (Hoverla is the highest peak, 2,061 m a.s.l). Its climate is explored less than other mountain ridges in Europe. The massif is a climatic barrier for air masses on NW-SE line. To describe the climate of this area data from...
Chapter
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In the paper Authors compared multiannual changes of air temperature, precipitation and snow cover in three mountain ridges in Central Europe: Karkonosze, Tatry and Chornohora. While for Karkonosze and Tatry there are several research than for Chornohora climatic research were carried out and published sporadically. Changes in studied climate eleme...
Conference Paper
Full-text available
The present study attempts to assess changes in soccer players' physical and technical activity profiles due to thermal stress, measured by UTCI (Universal Thermal Climate Index) registered in training centres and during matches of the 2018 FIFA World Cup in Russia. The study material consisted of observations of 340 players representing 32 nationa...
Article
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W ostatnich dekadach XX w. i na początku XXI w. obserwuje się w skali globalnej znaczący wzrost temperatury powietrza. W odniesieniu do pozostałych elementów klimatu informacje są rozbieżne. Na przykład, relacjonowany jest wzrost opadów lub ich zmniejszanie. Brak jest praktycznie informacji, czy i w jakim stopniu zmieniają się wilgotność powietrza...
Conference Paper
Full-text available
Purpose: Top-level soccer tournaments such as the World Cup are held in variable, often adverse, weather conditions. The ambient conditions are important modifi ers of players’ physiological responses to exercise (Nassis et al., 2015). The study aims to seek relationships between players’ ability to perform repeated maximal exercise and climate con...
Conference Paper
Full-text available
Purpose: Climate conditions are signifi cant modifi ers of soccer players’ physiological and psychomotor responses to exercise (Nassis et al., 2015). The study aimed at fi nding relationships between players’ physiological, biochemical and psychomotor parameters during incremental exercise, and climate conditions for the 2022 FIFA World Cup in Qata...
Poster
Full-text available
Introduction Climate conditions are significant modifiers of soccer players’ physiological and psychomotor responses to exercise (Nassis et al. 2015). The study aimed at finding relationships between players’ physiological, biochemical and psychomotor parameters during incremental exercise, and climate conditions for the 2022 FIFA World Cup in Qat...
Article
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The health of individuals and societies depends on different factors including atmospheric conditions which influence humans in direct and indirect ways. The paper presents regional variability of some climate related diseases (CRD) in Poland: salmonellosis intoxications, Lyme boreliosis, skin cancers (morbidity and mortality), influenza, overcooli...
Article
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This study presents a spatiotemporal analysis of bioclimatic comfort conditions for Iran using mean daily meteorological data from 1995 to 2014, analyzed through Physiological Equivalent Temperature (PET) index and Universal Thermal Climate Index (UTCI) indices, and bioclimatic clustering. The results of this study demonstrate that due to the clima...
Article
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Mean annual and monthly averages of mean (Tmean), maximum (Tmax) and minimum (Tmin) air temperature from seven stations in Iraq were analysed to detect the inter-annual variation, long-term temporal and spatial trends distribution over the period 1941–2013. Due to non-homogeneous problems, this period has been divided into two short separated perio...
Article
Full-text available
Heat stress is one of the environmental factors influencing the health of individuals and the wider population. There is a large body of research to document significant increases in mortality and morbidity during heat waves all over the world. This paper presents key results of research dealing with heat-related mortality (HRM) in various cities i...
Article
Abstract Interest in the climate and an awareness of the beneficial cooling influence exerted on it by biologically-vital areas is growing, as climate change progresses, hot weather is more frequent as well as the urban heat island more intense. It is necessary to protect existing greenery in the cities and to introduce new planting. However plants...
Article
Full-text available
The results presented in the article of Wieczorek et al. (2016 Wieczorek J, Blazejczyk K, Morita T. (2016). Changes in melatonin secretion in tourists after rapid movement to another lighting zone without transition of time zone. Chronobiol Int. 33:220–33.[Taylor & Francis Online], [Web of Science ®], [Google Scholar]) have been obtained based on t...
Article
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Weather and climate are important natural resources for tourism and recreation, although sometimes they can make outdoor leisure activities less satisfying or even impossible. The aim of this work was to determine weather perception seasonal variability of people staying outdoors in urban environment for tourism and recreation, as well as to determ...
Conference Paper
Cette étude vise à mettre en exergue les impacts éventuels des bioclimats sur le tourisme dans les villes côtières du Bénin. Elle a été menée à l’aide des méthodes de statistiques descriptives, du calcul d’indice de confort touristique (ICT) et de la matrice sensibilité. Les données utilisées sont celles du modèle météorologique ReMO (pluie, tempér...
Article
Full-text available
Most of the research in the field of Chronobiology is focused on the problem of the circadian rhythms (CR) desynchronization. In travelers, it results mostly from the changes of surrounding: photoperiod, local climate conditions (radiation and thermal load) and behavior (e.g. type and place of tourism and activity level). Until now, it was not docu...
Chapter
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This chapter will introduce the UHI phenomena in Warsaw, in particular after a the definition of the pilot area, experimental microclimatic measurements were made in two housing estates, Koło and Włodarzewska, located at a similar distance from the city centre and from the city limits but different in terms of building periods and materials. A spec...
Poster
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Monitoring klimatu Warszawy prowadzony przez Instytut Geografii i Przestrzennego Zagospodarowania PAN obejmuje pomiary parametrów meteorologicznych w około 30 stałych punktach. Dane te są uzupełniane pomiarami z 8 stacji innych operatorów (WIOŚ Warszawa, IMGW PIB, LAB-EL Elektronika Laboratoryjna). Pomiary prowadzone przez IGiPZ PAN obejmują temper...
Poster
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Powstanie miejskiej wyspy ciepła jest efektem m.in. specyficznych, fizycznych właściwości materiałów pokrywających grunt w mieście, które pochłaniają więcej promieni słonecznych, niż odbijają, a także dużej ilości powierzchni pionowych silnie pochłaniających promienie słoneczne i zmniejszające prędkość wiatru. Powoduje to, że w mieście gromadzi się...
Chapter
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The aim of the publication is to present the basic health and epidemiological problems that should be expected in Poland by the end of the 21st century in connection with possible climate change. We presented also a catalog of immediate and long-term adaptation measures of the health care system to climate change was presented.
Book
Full-text available
The aim of research was to assess the health and epidemiologic problems that could occur in different regions of Poland to the year 2100 in relation to projected climate changes. The proposed assessment bases on the concept of “climate related diseases” (CRD) which includes: 1) those caused directly by weather factors, 2) those which intensify unde...
Article
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This paper presents an application of the Universal Thermal Climate Index UTCI to studies of regional variability in human-biometeorological conditions. The variability in question was assessed by reference to selected meteorological stations representing Central and Southern Europe, i.e. Kołobrzeg, Warsaw and Świeradów (in Poland), Prague, Budapes...
Article
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The sole factors of major importance to Bulgaria’s agrarian output are temperature, and water probability. Between these two factors it is the component relating to soil moisture that proves more limiting. Probabilities of occurrence of water and of given temperatures are estimated by reference to summed temperatures and total rainfall, but also in...
Article
Full-text available
The work described here has sought to determine soil water content change and its relation with the change in the main agro-climate forming meteorological elements for the 1981-2010 period in comparison with the 1951-1980 one. Changes in the main meteorological elements, which lead to spoiled agrometeorological conditions in the second half of the...
Article
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Agriculture is a sector of the national economy strongly influenced by climatic conditions. A majority of jobs in agriculture are still performed outdoors, under various weather conditions. Several meteorological situations can lead to severe disturbances in the organism of agricultural workers, with high temperature, intensive insolation and eleva...
Article
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One of the principal features of climate is its spatial variability. Long distance travels are an essential part of life in contemporary societies. In 2012 tourism arrivals reached 1 billion people at the global scale. In a short time one can move to extremely different climatic conditions and one's organism is under great pressure of atmospheric s...
Book
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The book presents results of the international project supported by Central Europe Programme of EU, co-financed by the ERDF, in the frame of project no3CE292P3 Development and application of mitigation and adaptation strategies and measures for counteracting the global Urban Heat Islands phenomenon (UHI) conducted in 2011-2014. The shape of UHI in...
Article
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The paper presents new approach to study spatial and temporal variability of bioclimatic conditions. The new Universal Thermal Climate Index UTCI was applied in this purpose. UTCI bases on multi-note human heat balance Fiala model and it represents heat stress in man caused by meteorological conditions. The seasonal and regional variability of bioc...
Article
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The paper presents a new approach to the study of the spatial variability of heat stress in urban areas. The Universal Thermal Climate Index UTCI was applied for this purpose. The spatial variability of UTCI at the local scale was studied using examples of urban areas with different sizes and geographical locations. The experimental research on urb...
Article
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Manuscript received: April 2, 2014 Revised version: July 28, 2014 BłażeJczyk k., Morita t., ueno-towatari t., BłażeJczyk a., wieczorek J., 2014. Seasonal and regional differences in light-ing conditions and their influence on melatonin secretion. Quaestiones Geographicae 33(3), Bogucki Wydawnictwo Naukowe, Poznań, pp. 17–25, 1 table, 6 figs. DOI 10...
Conference Paper
Full-text available
Cette étude vise à approfondir les connaissances sur l'évolution des bioclimats dans les villes du littoral béninois au Bénin. Pour ce faire, cette étude a été menée à l'aide des méthodes de statistiques descriptives, et de calcul d'indice bioclimatique (UTCI). Les données utilisées sont les données météorologiques (pluie, température, humidité rel...