Summary
In this paper, seven indices have been applied to study the physiological climate of Ilorin (8°30′N; 4°35′E) using mean monthly data collected on a 3-hourly basis. The only exception is the air temperature data for which mean daily minimum, mean daily maximum and mean daily values were collected.
The application of the indices shows that three of them namely — air temperature, the wet bulb temperature and the temperature humidity index (THI) when employed separately for physiological classification of the tropical wet-and-dry climate, will yield comparable results. These methods show that the critical values of 22°C (THI), about 19°C (wet-bulb temperature) or 18–21°C (air temperature) depict conditions which are comfortable.
Zusammenfassung
Es wurden sieben Indexgrößen zur Bestimmung des physiologischen Klimas von Ilorin mit Verwendung von Monatsmitteln dreistündiger Beobachtungsdaten angewendet. Für die Lufttemperatur wurden mittlere tägliche Minima und Maxima und Tagesmittelwerte verwendet.
Es ergab sich, daß drei von diesen Indexgrößen, nämlich die Lufttemperatur, die Feuchtkugeltemperatur und der Temperatur-Feuchtigkeits-Index (THI) bei gesonderter Anwendung für die physiologische Klassifikation des feuchten und trockenen tropischen Klimas vergleichbare Ergebnisse liefern. Diese Methoden zeigen, daß die kritischen Werte von 22°C für THI, um 19°C für die Feuchtkugeltemperatur und von 18 bis 21°C für die Lufttemperatur komfortable Verhältnisse darstellen.
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Olaniran, O.J. The physiological climate of Ilorin, Nigeria. Arch. Met. Geoph. Biocl., Ser. B 31, 287–299 (1982). https://doi.org/10.1007/BF02278298
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DOI: https://doi.org/10.1007/BF02278298