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- All Subjects: Climate Change
- All Subjects: shade
- Creators: Chhetri, Netra
Shade plays an important role in designing pedestrian-friendly outdoor spaces in hot desert cities. This study investigates the impact of photovoltaic canopy shade and tree shade on thermal comfort through meteorological observations and field surveys at a pedestrian mall on Arizona State University’s Tempe campus. During the course of 1 year, on selected clear calm days representative of each season, we conducted hourly meteorological transects from 7:00 a.m. to 6:00 p.m. and surveyed 1284 people about their thermal perception, comfort, and preferences. Shade lowered thermal sensation votes by approximately 1 point on a semantic differential 9-point scale, increasing thermal comfort in all seasons except winter. Shade type (tree or solar canopy) did not significantly impact perceived comfort, suggesting that artificial and natural shades are equally efficient in hot dry climates. Globe temperature explained 51 % of the variance in thermal sensation votes and was the only statistically significant meteorological predictor. Important non-meteorological factors included adaptation, thermal comfort vote, thermal preference, gender, season, and time of day. A regression of subjective thermal sensation on physiological equivalent temperature yielded a neutral temperature of 28.6 °C. The acceptable comfort range was 19.1 °C–38.1 °C with a preferred temperature of 20.8 °C. Respondents exposed to above neutral temperature felt more comfortable if they had been in air-conditioning 5 min prior to the survey, indicating a lagged response to outdoor conditions. Our study highlights the importance of active solar access management in hot urban areas to reduce thermal stress.
Due to the gender division of labor climate change will affect men and women differently. Policies and programs that do not take into account the needs and capacities of both men and women will fail to be effective and may worsen preexisting conditions that historically favor men. My research investigates the UN’s commitment towards gender mainstreaming. More specifically my objective is to understand how and to what extent the NAPAs from 49 countries integrate a gender dimension into their national climate adaptation policy. For the purpose of this research, I consider three interrelated issues: whether gender-specific needs and vulnerabilities were identified by the NAPA; if these needs and vulnerabilities were addressed by proposed adaptation projects; and in what forms women participated in the formulation of the NAPA. The scope of this research begins with an overview assessment of 49 NAPAs followed by a comparative assessment of NAPAs from four countries- Afghanistan, Bangladesh, Maldives, and Niger, and an in-depth analysis of Nepal’s NAPA, which incorporates field study. Nepal was chosen as a focus country due to its identification as being both inclusive and gender sensitive.
The method of inquiry consists of both quantitative and qualitative analysis, utilizing the quantitative measures of HDI and GII and the qualitative methods of content analysis and case study. The findings suggest that the response to the gender dimensions of climate change found in adaptation policies vary widely among the LDCs and the level of response is dependent upon social, cultural, economic, and political contexts within each LDC. Additionally, I find that gender mainstreaming techniques have not been fully integrated into the NAPA policy and processes, and have not been effective at promoting gender equality through adaptation strategies. Recommendations are provided in order to help mainstream gender in NAPAs as they continue to be developed, revised, and implemented.
Shade plays an important role in designing pedestrian-friendly outdoor spaces in hot desert cities. This study investigates the impact of photovoltaic canopy shade and tree shade on thermal comfort through meteorological observations and field surveys at a pedestrian mall on Arizona State University's Tempe campus. During the course of 1 year, on selected clear calm days representative of each season, we conducted hourly meteorological transects from 7:00 a.m. to 6:00 p.m. and surveyed 1284 people about their thermal perception, comfort, and preferences. Shade lowered thermal sensation votes by approximately 1 point on a semantic differential 9-point scale, increasing thermal comfort in all seasons except winter. Shade type (tree or solar canopy) did not significantly impact perceived comfort, suggesting that artificial and natural shades are equally efficient in hot dry climates. Globe temperature explained 51 % of the variance in thermal sensation votes and was the only statistically significant meteorological predictor. Important non-meteorological factors included adaptation, thermal comfort vote, thermal preference, gender, season, and time of day. A regression of subjective thermal sensation on physiological equivalent temperature yielded a neutral temperature of 28.6 °C. The acceptable comfort range was 19.1 °C-38.1 °C with a preferred temperature of 20.8 °C. Respondents exposed to above neutral temperature felt more comfortable if they had been in air-conditioning 5 min prior to the survey, indicating a lagged response to outdoor conditions. Our study highlights the importance of active solar access management in hot urban areas to reduce thermal stress.