全部树

Cost of living data for global residentsNEW

China high-tech enterprise patent statisticsNEW

Statistics on entry and exit information of Chinese partnershipsNEW

Patents and citation data of Little Giant and individual champion companiesNEW

Small giant and single champion enterprise design patent details table

Digital economy patent application and authorization dataNEW

Tax investigation of corporate patents and citation dataNEW

Patent and citation data of Chinese industrial enterprisesNEW

Patent and citation data of A-share listed companiesNEW

Patent details of A-share listed companies
A-share listed companies' design patent application details table
Details of Design Patents Authorized by A-share Listed Companies

Statistics on the entry and exit of Chinese industrial and commercial enterprisesNEW

Basic information data of manufacturing industrial and commercial registered enterprisesNEW

China foreign trade index data

China university patent statisticsNEW

Green patents and citation data of Chinese industrial enterprisesNEW

Details of Green Patents of Chinese Industrial Enterprises

Green patents and citation data of A-share listed companies

A-share listed companies green patent details table

  China's High-Quality Nighttime Light Data, collaboratively developed by CnOpenData and Jilin High-Resolution Remote Sensing Application Research Institute Co., Ltd, is derived from multi-source nighttime light satellite remote sensing imagery. Through scientific methodologies including denoising, correction, and analytical statistics, this database provides high-quality nighttime light data with annual and monthly updates, organized according to three-level administrative divisions (province, city, and county). The dataset comprises two formats: Excel statistical tables and SHP vector files, containing six key metrics: Total Brightness Value (总亮度值), Total Pixel Count (总像元数), Average Brightness Value (平均亮度值), Number of Light-Emitting Pixels (发光像元数), Average Brightness of Light-Emitting Pixels (发光像元平均值), and Proportion of Light-Emitting Pixels (发光像元占比).

  This high-quality nighttime light dataset offers valuable insights into human activities and urban development, demonstrating significant implications for multiple domains:

  • Urban Planning and Management: Reveals spatial distribution and expansion patterns of urban areas, enabling planners to optimize urban layouts and infrastructure development.
  • Economic Research: Facilitates assessment of economic activity levels and growth trends through regional comparisons, supporting evidence-based resource allocation and policy formulation.
  • Environmental Monitoring: Enables evaluation of energy consumption patterns, air quality, and population density by tracking urban light emissions.
  • Disaster Monitoring and Response: Assists in assessing the spatial extent and severity of natural disasters (e.g., earthquakes, floods, wildfires) for timely emergency interventions.
  • Social Science Research: Reveals spatiotemporal patterns of human activities through light distribution analysis, providing insights into urban social structures and cultural characteristics.

Temporal Coverage

April 2012 - December 2023 (Spatial resolution: 500 meters)


Data Products

Brightness Map


Data Description

Description

Temporal Dimension


Field Specifications


Sample Data

China Nighttime Light Data - Provincial Level

China Nighttime Light Data - Prefectural Level

China Nighttime Light Data - County Level


Update Frequency

Annual updates