PMID- 34648842 OWN - NLM STAT- MEDLINE DCOM- 20211125 LR - 20211125 IS - 1873-6424 (Electronic) IS - 0269-7491 (Linking) VI - 292 IP - Pt A DP - 2022 Jan 1 TI - Appraising regional anthropogenic heat flux using high spatial resolution NTL and POI data: A case study in the Beijing-Tianjin-Hebei region, China. PG - 118359 LID - S0269-7491(21)01941-2 [pii] LID - 10.1016/j.envpol.2021.118359 [doi] AB - Rapid urbanization and the aggregation of human activities in cities have resulted in large amounts of anthropogenic heat (AH) emission, which affects urban climate. Quantifying and assessing the AH emission values accurately and analyzing their spatial distribution characteristics is important to understand the energy exchange processes of urban areas. In this study, the high spatial resolution anthropogenic heat flux (AHF) quantification and spatial distribution analysis were conducted using multi-source data in the Beijing-Tianjin-Hebei region (BTH region) of China. First, the AH emission in district and city level were estimated using inventory method based on energy consumption and socio-economic statistical data; Then, AHF spatial quantification models were constructed based on high spatial resolution nighttime light (NTL) data and Point of interests (POI) data, and 130 m x 130 m gridded AHF quantification result in BTH region was realized; Finally, the potential numerical and spatial distribution patterns of AHF were analyzed using various indicators including contribution rate and aggregation index. The results show that: (1) The parameterized index constructed based on NTL and POI data shows a strong correlation with AHF, with R(2) ranging from 0.79 to 0.94 and a mean absolute error (MAE) value of 0.72 w.m(-2), which can be applied to the quantification of gridded AHF values with high resolution. The highest total AHF in the study area is 214 w.m(-2), and the average value is 2.24 w.m(-2). (2) Considering the sources of AHF, industrial emission sources in BTH region contribute the most to the total AHF, but commercial building emission sources in Beijing have a higher contribution, which can reach 33.8%. (3) Different types of AHF have different spatial aggregation levels. Commercial building emission and human metabolic emission have the highest aggregation level, and transportation emission has the lowest aggregation level. CI - Copyright (c) 2021 Elsevier Ltd. All rights reserved. FAU - Wang, Yichen AU - Wang Y AD - College of Resource Environment and Tourism, Capital Normal University, Beijing, 100048, China; Key Laboratory of 3D Information Acquisition and Application, Ministry of Education, Beijing, 100048, China. FAU - Hu, Deyong AU - Hu D AD - College of Resource Environment and Tourism, Capital Normal University, Beijing, 100048, China; Key Laboratory of 3D Information Acquisition and Application, Ministry of Education, Beijing, 100048, China. Electronic address: deyonghu@cnu.edu.cn. FAU - Yu, Chen AU - Yu C AD - College of Resource Environment and Tourism, Capital Normal University, Beijing, 100048, China; Key Laboratory of 3D Information Acquisition and Application, Ministry of Education, Beijing, 100048, China. FAU - Di, Yufei AU - Di Y AD - College of Resource Environment and Tourism, Capital Normal University, Beijing, 100048, China; Key Laboratory of 3D Information Acquisition and Application, Ministry of Education, Beijing, 100048, China. FAU - Wang, Shasha AU - Wang S AD - Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, International Institute for Earth System Science, Nanjing University, Nanjing, Jiangsu, 210023, China. FAU - Liu, Manqing AU - Liu M AD - State Key Laboratory of Remote Sensing Science, Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China. LA - eng PT - Journal Article DEP - 20211011 PL - England TA - Environ Pollut JT - Environmental pollution (Barking, Essex : 1987) JID - 8804476 RN - 0 (Air Pollutants) RN - 0 (Particulate Matter) SB - IM MH - *Air Pollutants/analysis MH - *Air Pollution/analysis MH - Beijing MH - China MH - Cities MH - Environmental Monitoring MH - Hot Temperature MH - Humans MH - Particulate Matter/analysis OTO - NOTNLM OT - Anthropogenic heat flux OT - Beijing-Tianjin-Hebei region OT - High spatial resolution OT - Luojia 1-01 OT - POI EDAT- 2021/10/15 06:00 MHDA- 2021/11/26 06:00 CRDT- 2021/10/14 20:12 PHST- 2021/06/03 00:00 [received] PHST- 2021/10/08 00:00 [revised] PHST- 2021/10/10 00:00 [accepted] PHST- 2021/10/15 06:00 [pubmed] PHST- 2021/11/26 06:00 [medline] PHST- 2021/10/14 20:12 [entrez] AID - S0269-7491(21)01941-2 [pii] AID - 10.1016/j.envpol.2021.118359 [doi] PST - ppublish SO - Environ Pollut. 2022 Jan 1;292(Pt A):118359. doi: 10.1016/j.envpol.2021.118359. Epub 2021 Oct 11.