Comparisons of urban and rural bioclimatological conditions in the case of a Central-European city

Research output: Contribution to journalArticle

70 Citations (Scopus)

Abstract

This paper examines the influence of a medium-sized city (Szeged, Hungary) on the bioclimatological conditions of human beings. With the help of suitable indices for the available data set, differences in the annual and diurnal variation of human bioclimatic characteristics between an urban and rural environment are evaluated over a 3-year period. These indices are the thermohygrometric index (THI, defined by air temperature and relative humidity), the relative strain index (RSI, defined by air temperature and vapour pressure) and the number of "beergarden days" (defined by air temperature at 2100 hours). In urban and rural areas, "hot" THI conditions characterize 6% and 1% of the year, "comfortable" conditions 30% and 20%, "cool" conditions 10% and 12%, and "cold" conditions 54% and 66% respectively. Over longer periods (e.g. one, month) RSI remains below the threshold value for strong heat stress in the city. The monthly frequencies of beergarden days show that these days appears from May until October and the city has almost twice as many pleasant evenings as the rural areas. Consequently, the city favourably modifies the main climatological elements within the general climate of its region; periods likely to be comfortable are therefore found more frequently in the city than in rural areas.

Original languageEnglish
Pages (from-to)139-144
Number of pages6
JournalInternational Journal of Biometeorology
Volume43
Issue number3
Publication statusPublished - Nov 1999

Fingerprint

Urbanization
rural area
air temperature
Air
Temperature
Air Pressure
Vapor Pressure
Vapor pressure
Hungary
Atmospheric humidity
Humidity
Climate
vapor pressure
diurnal variation
annual variation
relative humidity
Hot Temperature
urban area
comparison
city

Keywords

  • Bioclimatological indices
  • Humidity
  • Medium-sized city
  • Temperature

ASJC Scopus subject areas

  • Biophysics
  • Physiology
  • Atmospheric Science
  • Environmental Science(all)
  • Environmental Chemistry
  • Physiology (medical)

Cite this

Comparisons of urban and rural bioclimatological conditions in the case of a Central-European city. / Unger, J.

In: International Journal of Biometeorology, Vol. 43, No. 3, 11.1999, p. 139-144.

Research output: Contribution to journalArticle

@article{39f19605a03a4410b33053e64fefc73f,
title = "Comparisons of urban and rural bioclimatological conditions in the case of a Central-European city",
abstract = "This paper examines the influence of a medium-sized city (Szeged, Hungary) on the bioclimatological conditions of human beings. With the help of suitable indices for the available data set, differences in the annual and diurnal variation of human bioclimatic characteristics between an urban and rural environment are evaluated over a 3-year period. These indices are the thermohygrometric index (THI, defined by air temperature and relative humidity), the relative strain index (RSI, defined by air temperature and vapour pressure) and the number of {"}beergarden days{"} (defined by air temperature at 2100 hours). In urban and rural areas, {"}hot{"} THI conditions characterize 6{\%} and 1{\%} of the year, {"}comfortable{"} conditions 30{\%} and 20{\%}, {"}cool{"} conditions 10{\%} and 12{\%}, and {"}cold{"} conditions 54{\%} and 66{\%} respectively. Over longer periods (e.g. one, month) RSI remains below the threshold value for strong heat stress in the city. The monthly frequencies of beergarden days show that these days appears from May until October and the city has almost twice as many pleasant evenings as the rural areas. Consequently, the city favourably modifies the main climatological elements within the general climate of its region; periods likely to be comfortable are therefore found more frequently in the city than in rural areas.",
keywords = "Bioclimatological indices, Humidity, Medium-sized city, Temperature",
author = "J. Unger",
year = "1999",
month = "11",
language = "English",
volume = "43",
pages = "139--144",
journal = "International Journal of Biometeorology",
issn = "0020-7128",
publisher = "Springer New York",
number = "3",

}

TY - JOUR

T1 - Comparisons of urban and rural bioclimatological conditions in the case of a Central-European city

AU - Unger, J.

PY - 1999/11

Y1 - 1999/11

N2 - This paper examines the influence of a medium-sized city (Szeged, Hungary) on the bioclimatological conditions of human beings. With the help of suitable indices for the available data set, differences in the annual and diurnal variation of human bioclimatic characteristics between an urban and rural environment are evaluated over a 3-year period. These indices are the thermohygrometric index (THI, defined by air temperature and relative humidity), the relative strain index (RSI, defined by air temperature and vapour pressure) and the number of "beergarden days" (defined by air temperature at 2100 hours). In urban and rural areas, "hot" THI conditions characterize 6% and 1% of the year, "comfortable" conditions 30% and 20%, "cool" conditions 10% and 12%, and "cold" conditions 54% and 66% respectively. Over longer periods (e.g. one, month) RSI remains below the threshold value for strong heat stress in the city. The monthly frequencies of beergarden days show that these days appears from May until October and the city has almost twice as many pleasant evenings as the rural areas. Consequently, the city favourably modifies the main climatological elements within the general climate of its region; periods likely to be comfortable are therefore found more frequently in the city than in rural areas.

AB - This paper examines the influence of a medium-sized city (Szeged, Hungary) on the bioclimatological conditions of human beings. With the help of suitable indices for the available data set, differences in the annual and diurnal variation of human bioclimatic characteristics between an urban and rural environment are evaluated over a 3-year period. These indices are the thermohygrometric index (THI, defined by air temperature and relative humidity), the relative strain index (RSI, defined by air temperature and vapour pressure) and the number of "beergarden days" (defined by air temperature at 2100 hours). In urban and rural areas, "hot" THI conditions characterize 6% and 1% of the year, "comfortable" conditions 30% and 20%, "cool" conditions 10% and 12%, and "cold" conditions 54% and 66% respectively. Over longer periods (e.g. one, month) RSI remains below the threshold value for strong heat stress in the city. The monthly frequencies of beergarden days show that these days appears from May until October and the city has almost twice as many pleasant evenings as the rural areas. Consequently, the city favourably modifies the main climatological elements within the general climate of its region; periods likely to be comfortable are therefore found more frequently in the city than in rural areas.

KW - Bioclimatological indices

KW - Humidity

KW - Medium-sized city

KW - Temperature

UR - http://www.scopus.com/inward/record.url?scp=0033219580&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033219580&partnerID=8YFLogxK

M3 - Article

C2 - 10639906

AN - SCOPUS:0033219580

VL - 43

SP - 139

EP - 144

JO - International Journal of Biometeorology

JF - International Journal of Biometeorology

SN - 0020-7128

IS - 3

ER -