SSCI 165Lgw Lecture Notes - Lecture 21: Urban Heat Island, Phoenix Metropolitan Area, Urban Climate
Document Summary
Ssci lecture 21: temperature change and urban heat island. Extreme heat, extreme weather: e. g. natural disasters such as floods, earthquakes, tornados, droughts, blizzards, storms, volcanic eruptions, avalanches, tsunamis, etc. Projected climate change scenarios: with higher emissions, more widespread areas with heat index over 100 degrees fahrenheit for 2050. Urban climate trends: cities warming faster than rest of planet, urban heat island (uhi) effect is a significant and growing heat hazard, land cover is the main driver in urban climate. Urban land covers: highly fragmented and closely related to the spatial distri(cid:271)ution of population"s socioeconomic characteristics. Cities, neighborhoods, and equity: o(cid:448)er 50% of (cid:449)orld"s population = (cid:272)ity-dwellers, cities are human-built landscapes of many inequalities. How landscaping type impacts heat exposure: mesic vs desert vs xeric vs urban, urban > xeric > desert > mesic. Significant differences in exposure to extreme heat within phoenix metro area. Land cover type (urban, xeric, desert, mesic) is highly correlated w/exposure to extreme heat.
