针对黄河上游水体延伸范围广、水体细小破碎等特点，本数据集基于GEE（Google Earth Engine）平台，利用全色图像锐化技术对1999-2023年研究区Landsat系列卫星遥感影像进行降尺度，采用OTSU自适应阈值分割方法与人工修正相结合的方式，构建了空间分辨率为15 m、时间跨度为25年的黄河上游干流水体数据集。在提取水体范围的基础上，利用Arcgis软件进一步提取了河流的中心线，最后对河段平均河宽、弯曲程度、河道稳定性等6项形态指标进行了量化。全色图像锐化方法有效提升了黄河上游细小水体的提取能力，AWEIsh水体指数（Automated Water Extraction Index）在研究区也表现出良好的适用性。最终水体提取结果总体精度为0.94，Kappa系数为0.84。\n
本数据集为1999-2023年黄河上游青海段的干流水体数据集，每4-5年一期，共6期，具体为1999、2003、2008、2013、2018和2023年。本数据集空间分辨率为15 m，数据为16个河段和全河段的*.shp和*.tif格式的矢量数据和栅格数据，以及*.xlsx格式的参数统计数据。", "ds_source": "
数据来源于Landsat系列卫星遥感影像。", "ds_process_way": "
本数据集基于GEE（Google Earth Engine）平台，利用全色图像锐化技术对1999-2023年研究区Landsat系列卫星遥感影像进行降尺度，采用OTSU自适应阈值分割方法与人工修正相结合的方式，构建了空间分辨率为15 m、时间跨度为25年的黄河上游干流水体数据集。", "ds_quality": "
数据质量较好。", "ds_acq_start_time": "1999-01-01 00:00:00", "ds_acq_end_time": "2023-12-31 00:00:00", "ds_acq_place": "黄河上游", "ds_acq_lon_east": null, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": null, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "open-access", "ds_total_size": 16285030021, "ds_files_count": 1730, "ds_format": "*.shp，*.tif，*.xlsx", "ds_space_res": "15米", "ds_time_res": "4-5年", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "9ad47846-3d92-44db-947c-3398233785ce.png", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "952adb3f-3ede-4a94-942a-7de772f1bfc5", "ds_serv_man": "李红星", "ds_serv_phone": "0931-4967592", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.55" ], "quality_level": 0, "publish_time": "2026-04-07 18:47:18", "last_updated": "2026-05-18 09:09:57", "protected": false, "protected_to": null, "lang": "zh", "cstr": "31253.11.sciencedb.j00001.01612", "i18n": { "en": { "title": "Surface Water Dataset of the Upper Yellow River from 1999 to 2023", "ds_format": "", "ds_source": "", "ds_quality": "", "ds_ref_way": "", "ds_abstract": "", "ds_time_res": "", "ds_acq_place": "", "ds_space_res": "", "ds_projection": "", "ds_process_way": "", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "recommendation_value": 0, "license_type": "https://creativecommons.org/licenses/by/4.0/", "doi_reg_from": "reg_outside", "cstr_reg_from": "reg_outside", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "细小水体提取", "全色图像锐化", "Landsat", "数据集", "黄河上游" ], "ds_subject_tags": [ "水文学" ], "ds_class_tags": [], "ds_locus_tags": [ "黄河上游" ], "ds_time_tags": [ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 ], "ds_contributors": [ { "true_name": "秦艳红", "email": "qinyh1128@163.com", "work_for": "青海师范大学", "country": "中国" }, { "true_name": "金鑫", "email": "jinx13@lzu.edu.cn", "work_for": "青海师范大学地理科学学院", "country": "中国" }, { "true_name": "杜凯", "email": "20211028@qhnu.edu.cn", "work_for": "青海师范大学", "country": "中国" }, { "true_name": "金彦香", "email": "jinyx13@lzu.edu.cn", "work_for": "青海师范大学地理科学学院", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "秦艳红", "email": "qinyh1128@163.com", "work_for": "青海师范大学", "country": "中国" }, { "true_name": "金鑫", "email": "jinx13@lzu.edu.cn", "work_for": "青海师范大学地理科学学院", "country": "中国" }, { "true_name": "杜凯", "email": "20211028@qhnu.edu.cn", "work_for": "青海师范大学", "country": "中国" }, { "true_name": "金彦香", "email": "jinyx13@lzu.edu.cn", "work_for": "青海师范大学地理科学学院", "country": "中国" } ], "ds_managers": [ { "true_name": "秦艳红", "email": "qinyh1128@163.com", "work_for": "青海师范大学", "country": "中国" }, { "true_name": "金鑫", "email": "jinx13@lzu.edu.cn", "work_for": "青海师范大学地理科学学院", "country": "中国" }, { "true_name": "杜凯", "email": "20211028@qhnu.edu.cn", "work_for": "青海师范大学", "country": "中国" }, { "true_name": "金彦香", "email": "jinyx13@lzu.edu.cn", "work_for": "青海师范大学地理科学学院", "country": "中国" } ], "category": "水文" }