本数据集专注于巢湖流域的一级与二级水系网络，通过整合高分辨率遥感影像与GIS技术精细提取而成。数据集详细描绘了巢湖流域内主要河流及其支流的走向、宽度、流域边界等关键水文特征。一级水系涵盖了流域的主要干流，而二级水系则深入至各支流，全面展现了巢湖流域复杂的水系结构。\n
该数据集为流域水资源管理、防洪规划、生态廊道构建等提供了详实的基础资料。通过深入分析本数据集，可为巢湖流域的水资源高效利用、生态环境保护及应对气候变化策略的制定提供科学依据与技术支持，进一步促进流域的可持续发展与社会经济的稳定增长。", "ds_source": "
数据的核心来源于国家及地方水利部门、地理信息局等官方机构。", "ds_process_way": "
（1）将每个水系的名称、位置、流向、长度、宽度等关键信息进行整合。生成包含所有一级和二级水系特征的数据集。\n
（2）使用地理信息系统（GIS）软件对数据进行准确性检查，确保水系的划分和特征信息与实际情况相符。\n
（3）检查数据集中的数据类型、数据格式、投影坐标系等是否一致。\n
（4）使用地理信息系统（GIS）软件，根据整合后的水系数据集制作巢湖流域一级和二级水系的分布图。", "ds_quality": "
本数据集精准地覆盖了巢湖流域内的一级和二级水系，详尽地纳入了主要河流、支流及其他关键水体，确保了数据的全面性和完整性。在数据整合阶段，采用了地理信息系统（GIS）技术，将经过校验的数据进行集成和整合，形成统一、完整且高精度的数据集。采用了空间插值、数据融合等高级数据处理方法，以进一步提升数据的精度和可用性。", "ds_acq_start_time": null, "ds_acq_end_time": null, "ds_acq_place": "巢湖流域", "ds_acq_lon_east": 118.36, "ds_acq_lat_south": 30.94, "ds_acq_lon_west": 116.39, "ds_acq_lat_north": 32.13, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 1949104, "ds_files_count": 15, "ds_format": "*.adf", "ds_space_res": "30m", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "Albers Equal Area Conic Projection System", "ds_thumbnail": "2342e7c9-7d47-4939-acf8-abb0ca99c866.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "37eb642a-c117-47e4-a677-07ecffb4b8b7", "ds_serv_man": "李红星", "ds_serv_phone": "0931-4967592", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2025-03-27 17:46:10", "last_updated": "2025-06-30 11:34:29", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.NHRI.DB6780.2025", "i18n": { "en": { "title": " Data set of primary and secondary water systems in the Chaohu Lake basin", "ds_format": "*.adf", "ds_source": "
The core of the data comes from national and local water departments, geographic information bureaus, and other official agencies.", "ds_quality": "
This dataset accurately covers the primary and secondary water systems within the Chaohu Lake basin, exhaustively incorporating major rivers, tributaries and other key water bodies to ensure the comprehensiveness and completeness of the data. In the data integration stage, Geographic Information System (GIS) technology was used to integrate and consolidate the calibrated data to form a unified, complete and highly accurate dataset. Advanced data processing methods, such as spatial interpolation and data fusion, were adopted to further enhance the accuracy and usability of the data.", "ds_ref_way": "", "ds_abstract": "
This dataset focuses on the primary and secondary hydrological network of the Chaohu Lake Basin, and is finely extracted by integrating high-resolution remote sensing imagery and GIS technology. The dataset depicts key hydrological features such as the course, width, and basin boundaries of the major rivers and their tributaries in the Chaohu Lake Basin in detail. The primary water system covers the main streams in the basin, while the secondary water system penetrates into the tributaries, fully demonstrating the complex water structure of the Chaohu Lake Basin.\n
This dataset provides detailed basic information for water resource management, flood control planning, and ecological corridor construction in the basin. Through in-depth analysis of this dataset, it can provide scientific basis and technical support for the efficient use of water resources, ecological environmental protection and the formulation of strategies to cope with climate change in the Chaohu Lake Basin, which will further promote the sustainable development of the basin and the stable growth of the social economy.
", "ds_time_res": "", "ds_acq_place": "Chaohu lake basin", "ds_space_res": "30m", "ds_projection": "", "ds_process_way": "(1) Integrate key information such as name, location, flow direction, length, and width of each water system. A dataset containing the characteristics of all primary and secondary water systems is generated.\n
(2) The data were checked for accuracy using Geographic Information System (GIS) software to ensure that the delineation and characterization information of the water systems matched the actual situation.\n
(3) Check the consistency of data types, data formats, and projected coordinate systems in the dataset.\n
(4) Use geographic information system (GIS) software to produce distribution maps of primary and secondary water systems in the Chaohu Lake Basin based on the integrated water system dataset.", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "巢湖流域", "水系", "遥感影像" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "巢湖流域" ], "ds_time_tags": [ 2024 ], "ds_contributors": [ { "true_name": "胡庆芳", "email": "hqf_work@163.com", "work_for": "南京水利科学研究院", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "胡庆芳", "email": "hqf_work@163.com", "work_for": "南京水利科学研究院", "country": "中国" } ], "ds_managers": [ { "true_name": "胡庆芳", "email": "hqf_work@163.com", "work_for": "南京水利科学研究院", "country": "中国" } ], "category": "基础地理" }