Land Surface Temperature Analysis of Osaka, Japan*

Study Area: Osaka, Japan

Objective:

To conduct a land surface temperature (LST) analysis of Osaka, Japan using Landsat 8 satellite imagery and administrative boundary data.

Datasets:

- Landsat 8 OLI/TIRS scenes (acquired on 16/06/2024

- Administrative boundary of Japan (obtained from USGS explorer)

Methodology:

1. *Data Preprocessing:*

- Imported Landsat 8 scenes into ArcGIS and performed radiometric and geometric corrections.

- Resampled and projected the data to the Universal Transverse Mercator (UTM) coordinate system.

2. *Land Surface Temperature (LST) Calculation:*

- Used the Landsat 8 Thermal Infrared Sensor (TIRS) data to calculate LST using the Single-Channel Algorithm

3.*Visualization and Interpretation:*

- Created maps and 3D visualizations to display the LST results, highlighting areas of high temperature.

- Interpreted the results in the context of urban heat island effects, land use/land cover, and potential heatwave risks.

Key Findings:

- Identified areas of high LST values in Osaka, corresponding to urban centers and industrial zones.

- Observed a positive correlation between LST and population density.

- Detected spatial clusters of high LST values, indicating potential heatwave hotspots.

Conclusion

This project demonstrated the application of Landsat 8 data and ArcGIS in analyzing land surface temperature patterns in Osaka, Japan. The results provide valuable insights into the urban heat island effect and can inform urban planning and heatwave mitigation strategies.

Skills Demonstrate

- Satellite remote sensing and data analysis

- Spatial analysis and autocorrelation techniques

- Data visualization and interpretation

- ArcGIS software proficiency