Hanrui Sun

Application of Deep Learning in Regional Geological Lithological Mapping Based on Multi-source Geophysical, Geochemical and Remote Sensing Data

Wei Ren, Rongmei Liu, Hanrui Sun, Mingming Zhao et autres

Stratigraphic lithology identification and mapping constitute the foundation of geology. Identifying and distinguishing different lithologies is critical for understanding the development and evolution of geological strata. Traditional manual field geological survey is the most accurate method, yet it suffers from low efficiency …

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Multi-Scale Twin Networks for Coastal Zone Change Detection in Remote Sensing Imagery

Xiaoyi Jiang, Qi He, Longfei Zhao, Yu Hong et autres

Accurate coastal zone change detection is crucial for coastal urban planning and marine resource development. To address the specificity of coastal zone change detection and the category imbalance issue in the model, we propose a multi-scale coastal zone change detection method (AMMNet) …

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Construction of geographic knowledge graph based on sea area and islands supervision data

Hanrui Sun, Guo Xue, Xiaoyi Jiang, Linchong Kang et autres

In the era of big data, obtaining useful knowledge from massive data has become a big problem. With strong ability of data description and relationship recognition, knowledge graph can be applied to knowledge discovery in marine field. This paper reviews the research …

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Research and application on visualization of ocean scalar field

Long He, Xiaoyi Jiang, Guo Xue, Hanrui Sun

The visualization of ocean scalar field is of great importance to scientists engaged in the analysis of marine extreme weather, the delineation of ship routes and the prediction of fish populations. This paper presents a text format transformation method for gridded marine …

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Design and application of geological feature model based on PostgreSQL

Xiaohong Wu, Hanrui Sun

Based on the analysis of the current situation and management requirements of geological data, the modeling process of spatial data is elaborated. Based on the characteristics of spatial data, the logical model of geological vector data is abstracted and designed. A physical …

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Research on data architecture of multispecialty geological spatial information in big data environment

Xiaohong Wu, Wei Ren, Hanrui Sun

Big data has brought new technology, new model and new impetus to the development and reform of geological survey. Data is a valuable resource for an organization, and data architecture is an important decision for data management. This paper puts forward the …

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Research on web map tile services based on PostgreSQL

Xiaohong Wu, Hanrui Sun

Map image is widely used in our work and life. In order to meet the management and access requirements of massive tiles and improve the service capability of map image, this paper analyzes the characteristics of Web Map Tile Services, analyzes the …

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Research on web map tile services based on GeoWebCache and MongoDB

Xiaohong Wu, Wei Ren, Hanrui Sun, Mingming Zhao

WMTS map service has been widely used in our works and lives. In order to improve the management efficiency and service capability of geological spatial data, meet the requirements of convenient management and high-performance access of tens of millions of tiles, the …

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Application Research of Geological Information Metadata System in Big Data Environment

Xiaohong Wu, Hanrui Sun, Mingming Zhao

Big data has brought new technology, new model and new impetus to the development and reform of geological survey. Facing the massive and professional diversity of geological metadata management needs, this paper analyzes the development process of metadata standards, analyzes the geological …

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City-scale ventilation analysis using 3D buildings with Guangzhou case

Ying Shen, Meng Wang, Wenting Zhang, Hanrui Sun et autres

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Research on the Construction and Information System Framework of Geological Data Standardization

Xiaohong Wu, Hanrui Sun

In order to promote the transformation and development of geological work, realize the efficient collection of geological survey data and improve the management and service capabilities, it is necessary to carry out the standardization of geological data.The purpose and significance of the …

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Understanding the different responses from the similarity between displacement and groundwater level time series in Beijing, China

Hanrui Sun, Lin Zhu, Lin Guo, Yong Luo et autres

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