{
    "created": "2026-10-08 16:13:18",
    "updated": "2026-10-08 11:16:20",
    "id": "e57ecb88-5df4-48ca-9b86-c14072f86ae2",
    "version": 4,
    "ds_topic": null,
    "title_cn": "1977年帕米尔高原冰川编目",
    "title_en": "A dataset of 1977 Pamir Glacier Inventory (PGI 1977)",
    "ds_abstract": "<p>帕米尔高原被誉为“中亚水塔”，其冰川融水维系着咸海流域和南疆盆地超过5000万人口的生产生活。然而，早期的帕米尔高原冰川编目往往存在时间代表性有限、数字化处理精度不足和解译标准不一致等问题，导致冰川变化研究存在较大的不确定性。本研究使用Landsat MSS影像作为主要数据源，辅以高分辨率的KH-9图像和已有冰川编目，制备了1977年帕米尔高原冰川编目（PGI 1977）数据集。对于冰川表面基本无表碛覆盖的洁净区域，主要根据Landsat MSS影像中的色彩和纹理差异开展冰川边界的目视解译；对于表碛覆盖区域，则主要根据Landsat MSS和KH-9影像中的热融喀斯特、水文和地形特征等划定冰川边界。通过严格影像筛选、成熟框架方法继承、高分辨率KH-9影像集成以及单一解译人员操作等一系列质量控制程序，PGI 1977的数据精度获得了系统性提升。冰川编目结果表明，1977年帕米尔高原分布有冰川13575条，总面积为11242.26±595.85 km²。相较于同时期的其他冰川编目，PGI 1977表现出更强的时间代表性和更高的冰川边界解译精度，因此可为帕米尔高原的长期冰川变化研究提供可靠的基准参考。</p>",
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    "ds_thumbnail": "2935c043-462d-4de1-9523-2241b742801f.jpg",
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    "ds_ref_way": "",
    "paper_ref_way": "",
    "ds_ref_instruction": "None",
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    "doi_value": "",
    "subject_codes": [
        "170"
    ],
    "quality_level": 0,
    "publish_time": "2026-10-08 16:53:57",
    "last_updated": "2026-10-08 16:58:24",
    "protected": false,
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    "lang": "zh",
    "cstr": "11738.11.ncdc.db7824.2026",
    "i18n": {
        "en": {
            "title": "A dataset of 1977 Pamir Glacier Inventory (PGI 1977)",
            "ds_abstract": "The Pamir Plateau is known as the \"Water Tower of Central Asia,\" with its glacial meltwater sustaining a population of over 50 million people across the Aral Sea basin and southern Xinjiang. However, the early Pamir glacier inventories are generally constrained by limited temporal representativeness, insufficiently precise digitization, and inconsistent delineation criteria, all of which introduce substantial uncertainty into glacier change research. Using Landsat Multispectral Scanner (MSS) imagery as the primary data source, supplemented by high-resolution Keyhole (KH-9) imagery and pre-existing glacier inventory datasets, this study generated the 1977 Pamir Glacier Inventory (PGI 1977) dataset. For clean glacier areas, glacier outlines were manually delineated based on color and texture differences between ice/snow/firn and surrounding rocky terrain or soils observed in Landsat MSS imagery, which stem from their divergent thermodynamic properties. For debris-covered areas, glacier outlines were delineated by integrating thermokarst, hydrological, and topographic features captured in both Landsat MSS and KH-9 imagery. Accuracy of the PGI 1977 was systematically improved through a series of quality control procedures: rigorous image screening, inheritance of established inventory frameworks, integration of high-resolution KH-9 imagery, and consistent manual delineation by a single interpreter. The inventory results indicate that 13575 glaciers were distributed across the Pamir in 1977, covering a total area of 11242.26 ± 595.85 km². Compared with other contemporaneous glacier inventories, PGI 1977 shows markedly better temporal representativeness and improved glacier-outline accuracy, providing a reliable baseline reference for long-term glacier change research in the Pamir.",
            "ds_time_res": "",
            "ds_space_res": "",
            "ds_projection": ""
        }
    },
    "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": true,
    "created_from": "uc",
    "ds_topic_tags": [
        "冰川编目",
        "Landsat",
        "目视解译"
    ],
    "ds_subject_tags": [
        "地球科学"
    ],
    "ds_class_tags": [],
    "ds_locus_tags": [
        "帕米尔高原"
    ],
    "ds_time_tags": [
        1977
    ],
    "ds_contributors": [
        {
            "true_name": "李志杰",
            "email": "lizhijie820@tynu.edu.cn",
            "work_for": "太原师范学院地理科学学院",
            "country": "中国"
        },
        {
            "true_name": "王宁练",
            "email": "nlwang@nwu.edu.cn",
            "work_for": "西北大学",
            "country": "中国"
        },
        {
            "true_name": "Majid Gulayozov",
            "email": "majid1983@mail.ru",
            "work_for": "中国科学院中亚生态与环境研究中心",
            "country": "中国"
        }
    ],
    "ds_meta_authors": [
        {
            "true_name": "李志杰",
            "email": "lizhijie820@tynu.edu.cn",
            "work_for": "太原师范学院地理科学学院",
            "country": "中国"
        }
    ],
    "ds_managers": [
        {
            "true_name": "王宁练",
            "email": "nlwang@nwu.edu.cn",
            "work_for": "西北大学",
            "country": "中国"
        }
    ],
    "category": "冰川"
}