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Intensity of heat stress in 2015 and 2018 summer seasons in the region of the Lower Silesia (Poland)

Bartłomiej Miszuk
Bartłomiej Miszuk
   | Jul 31, 2020
Miscellanea Geographica's Cover Image
Miscellanea Geographica
Volume 24 (2020): Issue 3 (July 2020)
Thematic Issue: UTCI application in different spatial and temporal scales. Editors: Krzysztof Błażejczyk, Bożena Kicińska.
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Published Online: Jul 31, 2020
Page range: 138 - 146
Received: Mar 17, 2020
Accepted: Jun 23, 2020
DOI: https://doi.org/10.2478/mgrsd-2020-0020
Keywords
© 2020 Bartłomiej Miszuk, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Figure 1

Location of the Wrocław-Strachowice, Jelenia Góra and Śnieżka meteorological stations. Source: own study.
Location of the Wrocław-Strachowice, Jelenia Góra and Śnieżka meteorological stations. Source: own study.

Figure 2

Differences in UTCI for 12.00 UTC between 2015, 2018 and the 1971–2018 period for June, July and August in Wrocław, Jelenia Góra and Śnieżka. Source: own study
Differences in UTCI for 12.00 UTC between 2015, 2018 and the 1971–2018 period for June, July and August in Wrocław, Jelenia Góra and Śnieżka. Source: own study

Figure 3

Frequency of thermal stress in the summer season (June–August) for 12.00 UTC in 1971–2018, 2015 and 2018 in Wrocław, Jelenia Góra and on Śnieżka, according to UTCI categories: extreme cold stress (-5), very strong cold stress (-4), strong cold stress (-3), moderate cold stress (-2), slight cold stress (-1), no thermal stress (0), moderate heat stress (1), strong heat stress (2), very strong heat stress (3). Source: own study
Frequency of thermal stress in the summer season (June–August) for 12.00 UTC in 1971–2018, 2015 and 2018 in Wrocław, Jelenia Góra and on Śnieżka, according to UTCI categories: extreme cold stress (-5), very strong cold stress (-4), strong cold stress (-3), moderate cold stress (-2), slight cold stress (-1), no thermal stress (0), moderate heat stress (1), strong heat stress (2), very strong heat stress (3). Source: own study

Figure 4

Synoptic situation over Europe on 8 August 2015, including sea level pressure field (left) and isobaric surface of 500 hPa (right). Source: The Royal Netherlands Meteorological Institute ; www.wetter3.de (R. Behrendt, H. Mahlke) (according to the conditions given by the map’s authors)
Synoptic situation over Europe on 8 August 2015, including sea level pressure field (left) and isobaric surface of 500 hPa (right). Source: The Royal Netherlands Meteorological Institute ; www.wetter3.de (R. Behrendt, H. Mahlke) (according to the conditions given by the map’s authors)

Figure 5

Course of air temperature (left) and UTCI (right) on 8–10 August 2015 in Wrocław (WR), Jelenia Góra (JG) and on Śnieżka (SN); UTCI categories: moderate cold stress (-2), slight cold stress (-1), no thermal stress (0), moderate heat stress (1), strong heat stress (2), very strong heat stress (3). Source: own study
Course of air temperature (left) and UTCI (right) on 8–10 August 2015 in Wrocław (WR), Jelenia Góra (JG) and on Śnieżka (SN); UTCI categories: moderate cold stress (-2), slight cold stress (-1), no thermal stress (0), moderate heat stress (1), strong heat stress (2), very strong heat stress (3). Source: own study

Figure 6

Synoptic situation over Europe on 1 August 2018, including sea level pressure field (left) and isobaric surface of 500 hPa (right). Source: The Royal Netherlands Meteorological Institute ; www.wetter3.de (R. Behrendt, H. Mahlke) (according to the conditions given by the map’s authors)
Synoptic situation over Europe on 1 August 2018, including sea level pressure field (left) and isobaric surface of 500 hPa (right). Source: The Royal Netherlands Meteorological Institute ; www.wetter3.de (R. Behrendt, H. Mahlke) (according to the conditions given by the map’s authors)

Figure 7

Course of air temperature (left) and UTCI (right) on 31 July – 3 August 2018 in Wrocław (WR), Jelenia Góra (JG) and on Śnieżka (SN); UTCI categories: moderate cold stress (-2), slight cold stress (-1), no thermal stress (0), moderate heat stress (1), strong heat stress (2), very strong heat stress (3). Source: own study
Course of air temperature (left) and UTCI (right) on 31 July – 3 August 2018 in Wrocław (WR), Jelenia Góra (JG) and on Śnieżka (SN); UTCI categories: moderate cold stress (-2), slight cold stress (-1), no thermal stress (0), moderate heat stress (1), strong heat stress (2), very strong heat stress (3). Source: own study

Stress category according to UTCI

Stress categoryUTCI [°C]
Extreme heat stressabove 46
Very strong heat stress38 to 46
Strong heat stress32 to 38
Moderate heat stress26 to 32
No thermal stress9 to 26
Slight cold stress0 to 9
Moderate cold stress-13 to 0
Strong cold stress-27 to -13
Very strong cold stress-40 to -27
Extreme cold stressbelow -40
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