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[Analysis on instantaneous spatial pattern of thermal force field in Harbin]
Ning Zhu1, Cheng Wang, Hongze Zhou
1Northeast Forestry University, Harbin 150040, China.
Summary
Urban heat islands in Harbin were mapped using remote sensing (RS) and geographic information systems (GIS). High radiation temperature patches, particularly round forms, dominate the city, impacting ecological assessments and green system planning.
Area of Science:
- Urban Climatology
- Environmental Science
- Geographic Information Science
Context:
- Urban thermal fields are crucial for ecological assessment and green infrastructure planning.
- Harbin's urban thermal landscape was analyzed using remote sensing (RS) and geographic information systems (GIS).
Purpose:
- To analyze the spatial patterns of urban thermal fields in Harbin.
- To identify and categorize super-thermal radiation patches and their characteristics.
Summary:
- Land surface temperatures were classified into low (<10°C), middle (10-22°C), and high (22-31°C) radiation zones.
- High radiation temperature patches constituted 61% of the study area.
- 7018 super-thermal radiation patches (>28°C) were identified, with 95.02% being smaller than 1 hectare. Three spatial patterns (round, ring, pieces) were observed, with round forms exhibiting the highest average temperature.
Impact:
- Findings provide a basis for urban ecological environment assessment and green system planning in Harbin.
- The study discusses strategies to mitigate the urban heat island effect, focusing on green space coverage, area, and building dimensions.