{
    "created": "2020-10-12 04:02:39",
    "updated": "2026-05-09 12:40:18",
    "id": "a8936ce0-6b56-4174-9f18-406274112ff1",
    "version": null,
    "ds_topic": null,
    "title_cn": "1991-2000年黄土高塬沟壑区砚瓦川流域径流泥沙观测数据集",
    "title_en": "Observation data set of runoff and sediment in yanwachuan basin in Loess Plateau Gully Region from 1991 to 2000",
    "ds_abstract": "<p>本数据集为1991-2000年砚瓦川流域径流站径流泥沙观测数据，径流站的试验观测断面为大型抛物线型量水堰，观测方式为人工观测。主要包括砚瓦川流域逐日平均流量数据、逐日平均含沙量数据、逐日平均输沙率数据、洪水水文要素摘录数据、逐次洪水测验成果数据。</p>",
    "ds_source": "<p>人工定时观测，非汛期基流采用2段制，即8时、20时各观测一次；汛期基流采用4段制，即2时、8时、14时、20时各观测一次，汛期时段6～9月。\n（1）水位观测：在抛物线量水堰上部左侧设侧壁式水尺组观测水尺编号、水尺读数。汛期、非汛期基流定时观测，洪水期或者水位变化急剧期，在读取控制起涨、峰顶、落平和其它水位涨落重要转折点水位的前提下，大致按水位变化均匀布设测次，峰顶附近不少于3次，一般单峰不少于11次，落平后30min到1.0h观测一次，要求能测得各次峰、谷和完整的水位变化过程。（2）泥沙观测：采用水边一点法取沙。洪水期取沙次数以能控制住含沙量变化过程为原则，水沙峰不一致或含沙量变化剧烈时，测次需适当增加。水样处理全部采用置换法处理。                   </p>",
    "ds_process_way": "<p>（1）流量计算：用观测水位推算流量，计算公式为Q=20.89H²，Q:流量，单位：m³/s;H:水位，单位：m。（2）含沙量计算：用公式p=ws/v*1000计算含沙量，p：实测含沙量，单位：kg/m³； v：水样容积，单位：cm³；ws：水样中干沙重，单位：g。</p>",
    "ds_quality": "<p>观测数据整编录入过程中经过四级人工校核，分别是制表，初校，复校，审核，以确保数据质量。</p>",
    "ds_acq_start_time": "1991-01-01 00:00:00",
    "ds_acq_end_time": "2000-12-31 00:00:00",
    "ds_acq_place": "甘肃省庆阳市宁县砚瓦川流域",
    "ds_acq_lon_east": 107.62555555555555,
    "ds_acq_lat_south": 35.50472222222222,
    "ds_acq_lon_west": 107.91666666666667,
    "ds_acq_lat_north": 35.73722222222222,
    "ds_acq_alt_low": 980.0,
    "ds_acq_alt_high": 1340.0,
    "ds_share_type": "apply-access",
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    "ds_thumbnail": "a8936ce0-6b56-4174-9f18-406274112ff1.png",
    "ds_thumb_from": 2,
    "ds_ref_way": "黄河水利委员会西峰水土保持科学试验站，1991-2000年黄土高塬沟壑区砚瓦川流域径流泥沙观测数据集，国家冰川冻土沙漠科学数据中心(www.ncdc.ac.cn)，2020，doi：10.12072/ncdc.HWXFZhan.db0005.2020",
    "paper_ref_way": "",
    "ds_ref_instruction": "",
    "ds_from_station": null,
    "organization_id": "8f345532-a01e-49ca-a880-641bc176ede9",
    "ds_serv_man": "敏玉芳",
    "ds_serv_phone": "0931-4967596",
    "ds_serv_mail": "ncdc@lzb.ac.cn",
    "doi_value": "",
    "subject_codes": null,
    "quality_level": 3,
    "publish_time": "2021-07-08 19:14:07",
    "last_updated": "2021-07-08 19:14:07",
    "protected": false,
    "protected_to": null,
    "lang": "zh",
    "cstr": "11738.11.ncdc.HWXFZhan.2020.76",
    "i18n": {
        "en": {
            "title": "Observation data set of runoff and sediment in yanwachuan basin in Loess Plateau Gully Region from 1991 to 2000",
            "ds_format": "",
            "ds_source": "",
            "ds_quality": "",
            "ds_ref_way": "",
            "ds_abstract": "",
            "ds_time_res": "分",
            "ds_acq_place": "",
            "ds_space_res": "",
            "ds_projection": "",
            "ds_process_way": "",
            "ds_ref_instruction": "                                                                                                                                                                                                                            "
        }
    },
    "submit_center_id": "ncdc",
    "data_level": 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,
    "ds_topic_tags": [
        "平均输沙率",
        "侵蚀模数",
        "径流模数",
        "径流深",
        "平均流量",
        "平均含沙量"
    ],
    "ds_subject_tags": [
        "水文测量"
    ],
    "ds_class_tags": [],
    "ds_locus_tags": [
        "庆阳",
        "宁县",
        "砚瓦川",
        "甘肃省"
    ],
    "ds_time_tags": [
        1991,
        1992,
        1993,
        1994,
        1995,
        1996,
        1997,
        1998,
        1999,
        2000
    ],
    "ds_contributors": [
        {
            "true_name": "黄河水利委员会西峰水土保持科学试验站",
            "email": "18526328@qq.com",
            "work_for": "黄河水利委员会西峰水土保持科学试验站",
            "country": "中国"
        }
    ],
    "ds_meta_authors": [
        {
            "true_name": "袁静",
            "email": "317806317@qq.com",
            "work_for": "黄河水利委员会西峰水土保持科学试验站",
            "country": "中国"
        }
    ],
    "ds_managers": [
        {
            "true_name": "袁静",
            "email": "317806317@qq.com",
            "work_for": "黄河水利委员会西峰水土保持科学试验站",
            "country": "中国"
        }
    ],
    "category": "水土保持"
}