Applicability and Methodological Considerations of Urban Environmental Analysis Using API-Provided Estimated Weather Data

Q: What does this research mean for the field?

API-provided 1 km mesh weather data is effective for broad urban spatial evaluations and identifying priority areas, but lacks the resolution to accurately assess localized cooling effects from specific land covers like tree canopies. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

Kinya Shiraishi; Toru Terada; Akito Murayama

doi:10.11361/reportscpij.25.2_244

September 9, 2026Toshi keikaku hokokushu/Toshi keikaku houkokushuuOpen Access

Applicability and Methodological Considerations of Urban Environmental Analysis Using API-Provided Estimated Weather Data

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Key Points

To determine whether 1 km mesh air temperature estimates obtained from a weather API correspond with urban land cover features and evaluate their utility in microclimate analysis.
Extracted 1 km mesh estimated temperature data from a commercial weather API across Adachi Ward, Tokyo (N=48 meshes).
Quantified surface characteristics for each mesh, including tree canopy coverage, impervious surfaces, and water body ratios.
Evaluated diurnal temperature relationships across contrasting land cover compositions.
Air temperature differences across variations in tree canopy cover, impervious surfaces, and water bodies were small.
Meshes with high water surface proportions exhibited relatively higher temperatures in the early morning and lower temperatures during the day, whereas tree canopy correlations were inconsistent.
API-provided estimated weather data proved suitable for broad-scale spatial screening and identifying priority survey areas, but lacked the resolution to detect localized cooling effects.

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Implication

Spatial analysis reveals API-estimated weather data captures regional heat patterns but misses micro-scale cooling from urban greenery, indicating limits for local microclimate planning.

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Cite This Study

Shiraishi et al. (2026) studied this question.

synapsesocial.com/papers/6aa51e9d327956e4761f8747 https://doi.org/10.11361/reportscpij.25.2_244

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Applicability and Methodological Considerations of Urban Environmental Analysis Using API-Provided Estimated Weather Data

Key Points

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Discussion

Cite This Study

Applicability and Methodological Considerations of Urban Environmental Analysis Using API-Provided Estimated Weather Data

Key Points

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Implication

Abstract

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