Beijing Daily Surface Air Temperature at 0.01° Resolution, 2003-2019

From 2003 to 2019, this dataset provides daily surface air temperature estimates at a 0.01° resolution over Beijing. It is a provincial subset derived from a larger mainland China product, generated primarily from MODIS and GLDAS data sources. The dataset was validated against ground measurements from 20 meteorological stations, achieving an R² of 0.987 and an RMSE of 1.295 K.

Use Cases

• Analyzing urban heat island effects in Beijing based on high-resolution temperature data.
• Validating climate models using the ground-truth measurements from 20 meteorological stations.
• Studying long-term temperature trends from 2003 to 2019 for a specific Chinese province.
• Assessing the utility of MODIS and GLDAS data fusion for local-scale climate monitoring.

Strengths

• Validation against 20 ground stations shows high reliability with an R² of 0.987.
• High spatial resolution of 0.01° (approximately 1 km) for detailed analysis.
• Compressed data volume of 264MB facilitates easier download and handling.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data may reflect geographic bias inherent to the Beijing region and the source platforms.

Provenance

Source

Derived from an all-sky 1 km daily surface air temperature product over mainland China.

Collection Method

Generated from Moderate Resolution Imaging Spectroradiometer (MODIS) products and the Global Land Data Assimilation System (GLDAS) dataset, then resampled and clipped.

Time Range

2003-2019

Geography

Beijing, China