{
    "created": "2026-07-21 13:00:58",
    "updated": "2026-07-22 21:55:31",
    "id": "8efe98bf-e10a-4eaa-a8b2-a4d6b8d170be",
    "version": 2,
    "ds_topic": null,
    "title_cn": "塔吉克斯坦1950-2023年雪旱频率空间分布数据",
    "title_en": "",
    "ds_abstract": "<p>塔吉克斯坦年雪旱频率（无量纲），变量名为“sdf” ，变量读取后为三维矩阵71（纬度）<em>101（经度）</em>74（年份）。</p>",
    "ds_source": "",
    "ds_process_way": "<p>首先计算 1950–2023 年逐年的最大雪水当量（SWEmax）。当某一年 SWEmax 低于 1950–1979 年气候平均 SWEmax 时，该年被识别为雪旱年。随后，根据年降水量（P）和雪比例（S/P）相对于其气候平均值的异常，将雪旱年划分为暖雪旱、干雪旱和暖干雪旱三种类型。雪旱频率通过统计各类型雪旱在研究时段内的发生次数及其占总年份的比例进行量化。</p>",
    "ds_quality": "",
    "ds_acq_start_time": null,
    "ds_acq_end_time": null,
    "ds_acq_place": "",
    "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": 4246792,
    "ds_files_count": 1,
    "ds_format": "nc格式",
    "ds_space_res": "0.1度",
    "ds_time_res": "年",
    "ds_coordinate": "WGS84",
    "ds_projection": "WGS84",
    "ds_thumbnail": "8efe98bf-e10a-4eaa-a8b2-a4d6b8d170be.png",
    "ds_thumb_from": 0,
    "ds_ref_way": "",
    "paper_ref_way": "",
    "ds_ref_instruction": "",
    "ds_from_station": null,
    "organization_id": "a5877b42-96ea-4f13-af7e-246f355413d6",
    "doi_value": "",
    "subject_codes": [
        "170.15"
    ],
    "quality_level": 1,
    "publish_time": "2026-07-21 16:33:29",
    "first_publish_time": null,
    "last_updated": "2026-07-21 16:35:59",
    "protected": false,
    "protected_to": null,
    "lang": "zh",
    "cstr": null,
    "license": null,
    "extra": null,
    "files_shape": [
        {
            "name": "PD2511N190E04-雪旱频率数据1950-2023",
            "size": null,
            "is_dir": true
        }
    ],
    "features": null,
    "data_level": 0,
    "i18n": {
        "en": {
            "title": "",
            "ds_abstract": "Annual snow and drought frequency in Tajikistan (dimensionless), the variable is named \"sdf\", and the variable is read as a three-dimensional matrix 71 (latitude)*101 (longitude)*74 (year).",
            "ds_source": "",
            "ds_process_way": "First, calculate the maximum snow-water equivalent (SWEmax) for each year from 1950 to 2023. When a year's SWEmax is lower than the climatic average SWEmax from 1950 to 1979, the year is identified as a snow and dry year. Subsequently, based on the anomalies of annual precipitation (P) and snow ratio (S/P) relative to their climatic average, snow and drought years were divided into three types: warm snow and drought, dry snow and drought, and warm dry snow and drought. The frequency of snow drought is quantified by counting the number of occurrences of each type of snow drought during the study period and its proportion in the total year.",
            "ds_quality": "",
            "ds_acq_place": "",
            "ds_ref_instruction": "",
            "ds_ref_way": "",
            "ds_format": "NC format",
            "ds_projection": "",
            "ds_space_res": "",
            "ds_time_res": ""
        }
    },
    "license_type": null,
    "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": [
        "雪旱频率"
    ],
    "ds_subject_tags": [
        "大气科学"
    ],
    "ds_class_tags": [],
    "ds_locus_tags": [
        "塔吉克斯坦"
    ],
    "ds_time_tags": [
        1950,
        1951,
        1952,
        1953,
        1954,
        1955,
        1956,
        1957,
        1958,
        1959,
        1960,
        1961,
        1962,
        1963,
        1964,
        1965,
        1966,
        1967,
        1968,
        1969,
        1970,
        1971,
        1972,
        1973,
        1974,
        1975,
        1976,
        1977,
        1978,
        1979,
        1980,
        1981,
        1982,
        1983,
        1984,
        1985,
        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": [
        "李玉朋"
    ],
    "ds_meta_authors": [
        "李玉朋"
    ],
    "ds_managers": [
        "李玉朋"
    ],
    "category": "气象"
}