{
    "created": "2024-05-14 17:17:32",
    "updated": "2026-04-29 00:48:04",
    "id": "953c940e-ff91-4118-a7c1-9499e44d1bf3",
    "version": 5,
    "ds_topic": null,
    "title_cn": "丝绸之路沿线重点区域洪扎河流域冰川表面高程（冰量）变化数据集（1970-2019年）",
    "title_en": "Glacial surface elevation change of Hunza basin along the Silk Road",
    "ds_abstract": "<p>&emsp;&emsp;本数据集基于KH9（1970年）、SRTM（2000年）和ZY3-02（2019年）数据，利用不同时期DEM数据，获取了喀喇昆仑山地区洪扎河流域冰川表面高程变化。2000-2019年，喀喇昆仑山洪扎河流域冰川表面高程呈显著减薄状态，平均变化为-5.48±0.39 m。本数据集为喀喇昆仑山地区水资源评价、冰川水文研究提供了基础数据。",
    "ds_source": "<p>&emsp;&emsp;1. KH9：空间分辨率为10m，下载地址为https://earthexplorer.usgs.gov/ 。\n<p>&emsp;&emsp;2. SRTM：空间分辨率为1″的SRTM DEM数据，下载地址:http://imagico.de/map/demsearch.php 。\n<p>&emsp;&emsp;3. 资三立体像对：采购的地面分辨率为3.5 m的前视和后视影像，以构成立体像对，提取DEM。",
    "ds_process_way": "<p>&emsp;&emsp;1. DEM提取：资三立体相对提取DEM\n<p>&emsp;&emsp;2. DEM配准：不同DEM之间的配置。\n<p>&emsp;&emsp;公式: dh=a *  cos⁡(b-φ)*tan(α)+ dh ̅\n<p>&emsp;&emsp;参考文献：Nuth, C., & Kääb, A. (2011). Co-registration and bias corrections of satellite elevation data sets for quantifying glacier thickness change. The Cryosphere, 5, 271-290.",
    "ds_quality": "<p>&emsp;&emsp;通过DEM配准，非冰川区高程差从8.76m降低到0.76m。",
    "ds_acq_start_time": "1970-01-01 00:00:00",
    "ds_acq_end_time": "2019-12-31 00:00:00",
    "ds_acq_place": "丝绸之路沿线重点区域洪扎河流域",
    "ds_acq_lon_east": 75.75,
    "ds_acq_lat_south": 35.75,
    "ds_acq_lon_west": 75.5,
    "ds_acq_lat_north": 37.0,
    "ds_acq_alt_low": null,
    "ds_acq_alt_high": null,
    "ds_share_type": "apply-access",
    "ds_total_size": 216783405,
    "ds_files_count": 10,
    "ds_format": "",
    "ds_space_res": "30m",
    "ds_time_res": "20年",
    "ds_coordinate": "无",
    "ds_projection": "",
    "ds_thumbnail": "953c940e-ff91-4118-a7c1-9499e44d1bf3.png",
    "ds_thumb_from": 0,
    "ds_ref_way": "",
    "paper_ref_way": "",
    "ds_ref_instruction": "",
    "ds_from_station": null,
    "organization_id": "9de89acc-5714-4927-aba3-ac88067dff8a",
    "ds_serv_man": "敏玉芳",
    "ds_serv_phone": "0931-4967596",
    "ds_serv_mail": "ncdc@lzb.ac.cn",
    "doi_value": "",
    "subject_codes": [
        "170.4510"
    ],
    "quality_level": 3,
    "publish_time": "2024-05-20 16:51:28",
    "last_updated": "2025-06-23 14:33:12",
    "protected": true,
    "protected_to": null,
    "lang": "zh",
    "cstr": "11738.11.NCDC.NIEER.DB6498.2024",
    "i18n": {
        "en": {
            "title": "Glacial surface elevation change of Hunza basin along the Silk Road",
            "ds_format": "",
            "ds_source": "",
            "ds_quality": "",
            "ds_ref_way": "",
            "ds_abstract": "",
            "ds_time_res": "20年",
            "ds_acq_place": "The Hongzha River Basin, a key area along the Silk Road",
            "ds_space_res": "30m",
            "ds_projection": "",
            "ds_process_way": "",
            "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": [
        "冰川表面高程",
        "丝绸之路沿线重点区域"
    ],
    "ds_subject_tags": [
        "自然地理学"
    ],
    "ds_class_tags": [],
    "ds_locus_tags": [
        "洪扎河流域"
    ],
    "ds_time_tags": [
        1970,
        2019
    ],
    "ds_contributors": [
        {
            "true_name": "吴坤鹏",
            "email": "wukunpeng2008@lzb.ac.cn",
            "work_for": "云南大学国际河流与生态安全研究院",
            "country": "中国"
        }
    ],
    "ds_meta_authors": [
        {
            "true_name": "吴坤鹏",
            "email": "wukunpeng2008@lzb.ac.cn",
            "work_for": "云南大学国际河流与生态安全研究院",
            "country": "中国"
        }
    ],
    "ds_managers": [
        {
            "true_name": "吴坤鹏",
            "email": "wukunpeng2008@lzb.ac.cn",
            "work_for": "云南大学国际河流与生态安全研究院",
            "country": "中国"
        }
    ],
    "category": "冰川"
}