祁连山国家公园(36°45′-39°45′N, 95°07′-103°02′E)位于青藏高原东北缘，属于中国西北干旱半干旱区与青藏高原的过渡地带。其冰川水资源为青海和河西走廊地区的生态安全和生产生活用水提供了保障。了解冰川在年际尺度上的变化可帮助我们提升冰川对气候变化响应的认知，为有效应对气候变化提供参考依据。本数据集基于高质量Landsat影像，结合随机森林模型提取冰川边界，并通过形态学开闭运算和人工目视解译方法对提取结果进行优化，建立了1987-2023年祁连山国家公园高质量冰川逐年边界矢量数据集。与已有的冰川编目数据相比，本数据集可在年际尺度上对祁连山国家公园的冰川变化进行长时间序列分析，为冰川与气候变化的非线性响应机制研究提供数据基础。", "ds_source": "", "ds_process_way": "", "ds_quality": "", "ds_acq_start_time": "1986-01-01 00:00:00", "ds_acq_end_time": "2023-12-31 00:00:00", "ds_acq_place": "祁连山国家公园", "ds_acq_lon_east": 103.0, "ds_acq_lat_south": 36.75, "ds_acq_lon_west": 95.06666666666666, "ds_acq_lat_north": 39.75, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "open-access", "ds_total_size": 205585032, "ds_files_count": 0, "ds_format": "*shp", "ds_space_res": "", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "ce68d913-c660-4132-a558-4a2da95d482a.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": null, "ds_serv_phone": null, "ds_serv_mail": null, "doi_value": "", "subject_codes": [], "quality_level": 0, "publish_time": "2026-08-21 10:58:23", "last_updated": "2026-08-21 17:14:54", "protected": false, "protected_to": null, "lang": "zh", "cstr": null, "i18n": { "en": { "title": "Annual Glacier Boundary Dataset of Qilian Mountain National Park (1986–2023)", "ds_format": "*shp", "ds_source": "", "ds_quality": "", "ds_ref_way": "", "ds_abstract": "
Qilian Mountains National Park (QMNP) (36°45′–39°45′N, 95°07′–103°02′E) is located on the northeastern margin of the Tibetan Plateau and constitutes a transitional zone between the arid and semi-arid regions of northwestern China and the Tibetan Plateau. Glacier-derived water resources in this region play a critical role in sustaining ecological security and supporting water supply for production and daily use in Qinghai Province and the Hexi Corridor. Understanding glacier variations at the interannual scale is essential for improving our knowledge of glacier responses to climate change and for informing effective adaptation strategies. This dataset is developed based on high-quality Landsat imagery, with glacier boundaries extracted using a Random Forest model. The results are further refined through morphological dilation–erosion operations and manual visual interpretation. Consequently, a high-quality annual glacier boundary vector dataset for Qilian Mountains National Park covering the period 1987–2023 has been established. Compared with existing glacier inventories, this dataset enables long-term, interannual-scale analyses of glacier change in the region, providing a robust data foundation for investigating the nonlinear responses of glaciers to climate change.", "ds_time_res": "", "ds_acq_place": "Qilian mountain National Park", "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_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "belong_to_nieer": false, "allow_update_data": false, "ds_topic_tags": [ "祁连山国家公园", "冰川边界", "Landsat影像", "随机森林", "年际变化" ], "ds_subject_tags": [], "ds_class_tags": [], "ds_locus_tags": [ "祁连山国家公园" ], "ds_time_tags": [ 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 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": "赵晓阳", "email": "zhaoxy2023@lzu.edu.cn", "work_for": "兰州大学 资源环境学院", "country": "中国" }, { "true_name": "王乃昂", "email": "wangna1962lzu@163.com", "work_for": "兰州大学 资源环境学院", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "赵晓阳", "email": "zhaoxy2023@lzu.edu.cn", "work_for": "兰州大学 资源环境学院", "country": "中国" }, { "true_name": "王乃昂", "email": "wangna1962lzu@163.com", "work_for": "兰州大学 资源环境学院", "country": "中国" } ], "ds_managers": [ { "true_name": "赵晓阳", "email": "zhaoxy2023@lzu.edu.cn", "work_for": "兰州大学 资源环境学院", "country": "中国" } ], "category": "冰川" }