أثر المناخ على تحديد مستويات الراحة الفيسيولوجية في قضاء الرمادي

Abstract

The study reveals a sharp climatic variation. The annual mean temperature reached 23.17°C, peaking in summer at 36.2°C in July, and dropping to its lowest level of 8.77°C in January. Relative humidity recorded its highest levels during winter, reaching 62.38% in January, and its lowest in summer at 20.55% in July. The annual average wind speed was 2.88 m/s, with a peak of 4.17 m/s in June. According to the Thermohygrometric Index (THI), January recorded the lowest  value at (9.95), classified as (-C) "Extremely Cold." The values improve during spring, reaching (15.67) in March, classified as (P) "Ideal Comfort," and (19.78) in April, classified as (-P). A physiological shift then occurs in May with a value of (23.32), classified as (+H), marking the onset of thermal discomfort (heat sensation). Furthermore, the Wind Chill Index (KO) indicates the dominance of cold stress during winter, as values exceeded 500 during January and February. Conversely, they dropped to their lowest levels in July and August due to the absence of summer comfort. The ideal comfort periods were confined within the limits of 100–300 during April and November. Spatially, Al-Ramadi and Baghdad showed thermal convergence; however, Al-Ramadi was characterized by higher wind speeds that influenced the Wind Chill Index (KO), recording 4.17 m/s in June compared to 2.76 m/s in Baghdad.