TY - JOUR
T1 - Generating hourly local weather data with high spatially resolution and the applications in bioclimatic performance
AU - Lin, Feng Yi
AU - Huang, Kuo Tsang
AU - Lin, Tzu Ping
AU - Hwang, Ruey Lung
N1 - Funding Information:
The authors would like to thank the Ministry of Science and Technology, Taiwan, for supporting this work (Project No. MOST 106-2221-E-017-013-MY2).
Funding Information:
The authors would like to thank the Ministry of Science and Technology, Taiwan , for supporting this work (Project No. MOST 106-2221-E-017-013-MY2 ).
Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2019/2/25
Y1 - 2019/2/25
N2 - As urbanization expands and diversifies, weather data produced by a single weather station in a suburb are no longer adequate to represent and reflect microclimatic changes of a city. This study selected 34 automatic weather stations in Tainan City, Taiwan, to conduct temperature and humidity measurements over a period of one year. Based on those observed weather data and urban environment parameters obtained from a geographic information system, as well as morphing approach, this study constructed a method of generating hourly local weather data for urban areas while accounting for urban heat island (UHI) effect in summer. Meanwhile, we discussed the relativities of the urban form and its structure against the variations of local hourly temperature and relative humidity under six buffer scenarios. Error analysis results revealed that minimal prediction errors can be obtained using the buffer scenario involving a 1000 × 1000 m 2 four-layer buffer with inner and outer layers and upwind and downwind areas. Finally, using the hourly weather data produced for Tainan City, we calculated the long-term cumulative UHI intensity (UHII) and urban bioclimatic indexes (i.e., thermal stress, use of natural ventilation, and cooling degree day) and investigated how urban form and structure are related to UHII, thermal stress, use of natural ventilation, and cooling degree day. The results can inform urban policy making.
AB - As urbanization expands and diversifies, weather data produced by a single weather station in a suburb are no longer adequate to represent and reflect microclimatic changes of a city. This study selected 34 automatic weather stations in Tainan City, Taiwan, to conduct temperature and humidity measurements over a period of one year. Based on those observed weather data and urban environment parameters obtained from a geographic information system, as well as morphing approach, this study constructed a method of generating hourly local weather data for urban areas while accounting for urban heat island (UHI) effect in summer. Meanwhile, we discussed the relativities of the urban form and its structure against the variations of local hourly temperature and relative humidity under six buffer scenarios. Error analysis results revealed that minimal prediction errors can be obtained using the buffer scenario involving a 1000 × 1000 m 2 four-layer buffer with inner and outer layers and upwind and downwind areas. Finally, using the hourly weather data produced for Tainan City, we calculated the long-term cumulative UHI intensity (UHII) and urban bioclimatic indexes (i.e., thermal stress, use of natural ventilation, and cooling degree day) and investigated how urban form and structure are related to UHII, thermal stress, use of natural ventilation, and cooling degree day. The results can inform urban policy making.
UR - https://www.scopus.com/pages/publications/85056275860
UR - https://www.scopus.com/pages/publications/85056275860#tab=citedBy
U2 - 10.1016/j.scitotenv.2018.10.433
DO - 10.1016/j.scitotenv.2018.10.433
M3 - Article
C2 - 30759566
AN - SCOPUS:85056275860
SN - 0048-9697
VL - 653
SP - 1262
EP - 1271
JO - Science of the Total Environment
JF - Science of the Total Environment
ER -
