Research on Quality Control Method of Land Cover Classification Data Oriented to National Geographic Condition Monitoring

Abstract

Abstract. Aiming at the quality problems of the land cover classification data, such as missing update of changed spots, overrun of spot collection accuracy, incorrect spot classification, and inconsistencies between the filling of the change types of map spots and technical regulations, had been found during the quality inspection of the national geographic condition monitoring in China. This paper analyzed the key production factors, processes and causes that affect the process quality of the land cover classification data, and proposed the concept of the whole production quality control, and discussed the quality control measures to improve the land cover classification product. The research based on the new requirements of the whole-process quality control system in order to solve the quality problem-oriented production quality control method, could improve the quality of land cover classification product and provided reference for the quality control of the production process of related engineering projects in the future.

Identification of Metropolitan Area Boundaries Based on Comprehensive Spatial Linkages of Cities: A Case Study of the Beijing–Tianjin–Hebei Region

“…(2) Geographic information data. We used "Basic Geographic Country Monitoring Data" to represent the research area's surface cover, which included forest and grass cover, buildings, roads, waterways, and other types of surface cover elements that reflect the natural properties or conditions of natural and artificial structures on the ground [53]. These data provide higher resolution than other land cover data, allowing them to more precisely reflect the real land-use situation in the study area and improve the accuracy and credibility of analysis and research.…”