Outdoor Universal Thermal Comfort Index Climatology for Alaska

• 作者: Nicole M?lders
• 来源期刊: 大气和气候科学(英文)
• 学科: 地球科学
• 关键词: versal THERMAL ComUTCI Unifort Index THERMAL STRESS in Alaska Bio-Climate of Alaska THERMAL STRESS CLIMATOLOGY of Alaska
• 年，卷（期）: dqhqhkxyw_2019,（4）
• 页码范围: 558-582
• 页数: 25页
• 分类号: P73

摘要

Data from 456 surface meteorological sites in Alaska, eastern Russia and northwest Canada for 1979-2017 were used to model hourly universal thermal comfort indices (UTCIs) under consideration of Alaska-appropriate clothing. The results served to determine a high-resolution climatology of thermal comfort levels for Alaska at various temporal and spatial scales as well as the frequency of thermal stress levels. On 1979-2017 average, various degrees of cold stress occurred with highest percentage on the Alaska West Coast and along the Arctic Ocean. In the continental and Inside Passage region, no thermal stress had the highest percentage of occurrence. In Interior Alaska, both strong heat and extreme cold stress occurred occasionally. At most sites and in all Alaska Köppen-Geiger bio-climate regions, the absolute range between monthly means of daily minimum and maximum UTCIs was larger than that of monthly means of daily minimum and maximum air temperatures. Major contributors to thermal discomfort (shortwave radiation, air temperature, moisture, wind speed) varied among bio-climate regions and in the diurnal and annual courses.