{
    "created": "2019-10-09 15:25:10",
    "updated": "2026-04-22 07:47:34",
    "id": "36eb5d86-62bb-4978-9b5f-d42549b669ba",
    "version": 2,
    "ds_topic": null,
    "title_cn": "环北极地区多年冻土和地下冰状态图(V2)",
    "title_en": "Circum-Arctic map of permafrost and ground ice conditions (v2)",
    "ds_abstract": "<p>数据集包括：</p>\n\n<p>1、permaice（冻土类型图）</p>\n\n<p>2、subsea(海底界线矢量图)</p>\n\n<p>3、treeline(林线矢量图)</p>\n\n<p>4、nhipa(栅格图)</p>\n\n<p>5、llipa(栅格图)</p>\n\n<p>Permaice包括属性字段：</p>\n\n<p>Num_code（冻土属性编码）</p>\n\n<p>&lt;pCombo(冻土属性）</p>\n<p>extent（冻土范围）&lt;/p\n<p>content(含冰量）</p>\n<p>属性对照如下：</p>\n<p>（1）冻土属性对照表：</p>\n<p>0 （No information ）</p>\n<p>1 - chf （Continuous permafrost extent with high ground ice content and thick overburden）</p>\n<p>2 - dhf （Discontinuous permafrost extent with high ground ice content and thick overburden ）</p></p>\n<p>3 - shf （Sporadic permafrost extent with high ground ice content and thick overburden ）</p>\n\n<p>4 - ihf （Isolated patches of permafrost extent with high ground ice content and thick overburden ）</p>\n\n<p>5 - cmf （Continuous permafrost extent with medium ground ice content and thick overburden ）</p>\n\n<p>6 - dmf （Discontinuous permafrost extent with medium ground ice content and thick overburden ）</p>\n\n<p>7 - smf （Sporadic permafrost extent with medium ground ice content and thick overburden ）</p>\n\n<p>8 - imf （Isolated patches of permafrost extent with medium ground ice content and thick overburden）</p>\n\n<p>9 - clf （Continuous permafrost extent with low ground ice content and thick overburden ）</p>\n\n<p>10 - dlf （Discontinuous permafrost extent with low ground ice content and thick overburden ）</p>\n\n<p>11 - slf （Sporadic permafrost extent with low ground ice content and thick overburden ）</p>\n\n<p>12 - ilf （Isolated patches of permafrost extent with low ground ice content and thick overburden）</p>\n\n<p>13 - chr （Continuous permafrost extent with high ground ice content and thin overburden and exposed bedrock ）</p>\n\n<p>14 - dhr （Discontinuous permafrost extent with high ground ice content and thin overburden and exposed bedrock ）</p>\n\n<p>15 - shr （Sporadic permafrost extent with high ground ice content and thin overburden and exposed bedrock ）</p>\n\n<p>16 - ihr （Isolated patches of permafrost extent with high ground ice content and thin overburden and exposed bedrock）</p>\n\n<p>17 - clr （Continuous permafrost extent with low ground ice content and thin overburden and exposed bedrock ）</p>\n\n<p>18 - dlr （Discontinuous permafrost extent with low ground ice content and thin overburden and exposed bedrock ）</p>\n\n<p>19 - slr （Sporadic permafrost extent with low ground ice content and thin overburden and exposed bedrock）</p>\n\n<p>20 - ilr （Isolated patches of permafrost extent with low ground ice content and thin overburden and exposed bedrock ）</p>\n\n<p>21 - g （Glaciers）</p>\n\n<p>22 - r （Relict permafrost）</p>\n\n<p>23 - l （Inland lakes ）</p>\n\n<p>24 - o （Ocean/inland seas ）</p>\n\n<p>25 - ld （Land）</p>\n\n<p>（2）冻土范围对照表</p>\n\n<p>c = continuous (90-100%)</p>\n\n<p>d = discontinuous (50- 90%)</p>\n\n<p>s = sporadic (10- 50%)</p>\n\n<p>i = isolated patches ( 0 - 10%)</p>\n\n<p>（3）含冰量对照表</p>\n\n<p>h = high (&gt;20% for \"f\" landform codes) (&gt;10% for \"r\" landform codes)</p>\n\n<p>m = medium (10-20%)</p>\n\n<p>l = low (0-10%)</p>\n\n<p><hr />\n<p>Projection of the shapefiles is:</p>\n<p>PROJCS[\"Sphere_ARC_INFO_Lambert_Azimuthal_Equal_Area\",</p>\n<p>GEOGCS[\"GCS_Sphere_ARC_INFO\",</p>\n<p>DATUM[\"Sphere_ARC_INFO\", SPHEROID[\"Sphere_ARC_INFO\",6370997.0,0.0]],</p>\n<p>PRIMEM[\"Greenwich\",0.0],</p>\n<p>UNIT[\"Degree\",0.0174532925199433]],</p>\n<p>PROJECTION[\"Lambert_Azimuthal_Equal_Area\"],</p>\n<p>PARAMETER[\"False_Easting\",0.0],</p>\n<p>PARAMETER[\"False_Northing\",0.0],</p>\n<p>PARAMETER[\"longitude_of_center\",180.0],</p>\n<p>PARAMETER[\"latitude_of_center\",90.0],</p>\n<p>UNIT[\"Meter\",1.0]]</p>\n<p>Projection for the raster (*.byte) files is:</p>\n<p>Projection: Lambert Azimuthal</p>\n<p>Units: meters</p>\n<p>Spheroid: defined</p>\n<p>Major Axis: 6371228.00000</p>\n<p>Minor Axis: 6371228.000</p>\n<p>Parameters:</p>\n<p>radius of the sphere of reference: 6371228.00000</p>\n<p>longitude of center of projection: 0</p>\n<p>latitude of center of projection: 90</p>\n<p>false easting (meters): 0.00000</p>\n<p>false northing (meters): 0.00000</p></p>",
    "ds_source": "",
    "ds_process_way": "<p>数字矢量化</p>",
    "ds_quality": "<p>数据集通过严格的人工审核控制质量</p>",
    "ds_acq_start_time": null,
    "ds_acq_end_time": null,
    "ds_acq_place": "环北极",
    "ds_acq_lon_east": -180.0,
    "ds_acq_lat_south": 25.0,
    "ds_acq_lon_west": 180.0,
    "ds_acq_lat_north": 90.0,
    "ds_acq_alt_low": null,
    "ds_acq_alt_high": null,
    "ds_share_type": "login-access",
    "ds_total_size": 206951598,
    "ds_files_count": 4,
    "ds_format": "矢量",
    "ds_space_res": "100000.0m",
    "ds_time_res": "",
    "ds_coordinate": "WGS84",
    "ds_projection": "+proj=laea +lat_0=90 +lon_0=0 +x_0=0 +y_0=0 +a=6371228 +b=6371228 +units=m +no_defs ",
    "ds_thumbnail": "36eb5d86-62bb-4978-9b5f-d42549b669ba.png",
    "ds_thumb_from": 0,
    "ds_ref_way": "",
    "paper_ref_way": "",
    "ds_ref_instruction": "为尊重知识产权、保障数据作者的权益、扩展数据中心的服务、评估数据的应用潜力，请数据使用者在使用数据所产生的研究成果中（包括公开发表的论文、论著、数据产品和未公开发表的研究报告、数据产品等成果），明确注明数据来源和数据作者。对于转载（二次或多次发布）的数据，作者还须注明原始数据来源。中文发表的成果参考以下规范注明：\r\n数据来源于国家自然科学基金委员会\"中国西部环境与生态科学数据中心\"(http://westdc.westgis.ac.cn)英文发表的成果依据以下规范注明： The data set is provided by Environmental and Ecological Science Data Center for West China,National Natural Science Foundation of China (http://westdc.westgis.ac.cn)",
    "ds_from_station": null,
    "organization_id": "9c4867b1-5cb1-4de0-abeb-df42547bf41e",
    "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": "2021-01-11 09:13:44",
    "last_updated": "2023-08-23 16:46:35",
    "protected": false,
    "protected_to": null,
    "lang": "zh",
    "cstr": "11738.11.ncdc.Westdc.2020.567",
    "i18n": {
        "en": {
            "title": "Circum-Arctic map of permafrost and ground ice conditions (v2)",
            "ds_format": "Vector",
            "ds_source": "",
            "ds_quality": "<p>Data set quality control through strict manual audit</p>",
            "ds_ref_way": "",
            "ds_abstract": "<p>The data set includes:</p>\n<p>1. Permaice (frozen soil type map)</p>\n<p>2. Subsea (vector map of submarine boundary)</p>\n<p>3. Tree line</p>\n<p>4. Nhipa (grid map)</p>\n<p>5. Llipa (grid chart)</p>\n<p>Permaice includes attribute fields:</p>\n<p>Num_ Code (permafrost attribute code)</p>\n<p>&lt; pcombo (permafrost attribute)</p>\n<p>Extend &lt; / P\n<p>Content (ice content)</p>\n<p>Attribute comparison is as follows:</p>\n<p>(1) Comparison table of frozen soil properties:</p>\n<p>0 （No information ）</p>\n<p>1 - chf （Continuous permafrost extent with high ground ice content and thick overburden）</p>\n<p>2 - dhf （Discontinuous permafrost extent with high ground ice content and thick overburden ）</p>\n<p>3 - shf （Sporadic permafrost extent with high ground ice content and thick overburden ）</p>\n<p>4 - ihf （Isolated patches of permafrost extent with high ground ice content and thick overburden ）</p>\n<p>5 - cmf （Continuous permafrost extent with medium ground ice content and thick overburden ）</p>\n<p>6 - dmf （Discontinuous permafrost extent with medium ground ice content and thick overburden ）</p>\n<p>7 - smf （Sporadic permafrost extent with medium ground ice content and thick overburden ）</p>\n<p>8 - imf （Isolated patches of permafrost extent with medium ground ice content and thick overburden）</p>\n<p>9 - clf （Continuous permafrost extent with low ground ice content and thick overburden ）</p>\n<p>10 - dlf （Discontinuous permafrost extent with low ground ice content and thick overburden ）</p>\n<p>11 - slf （Sporadic permafrost extent with low ground ice content and thick overburden ）</p>\n<p>12 - ilf （Isolated patches of permafrost extent with low ground ice content and thick overburden）</p>\n<p>13 - chr （Continuous permafrost extent with high ground ice content and thin overburden and exposed bedrock ）</p>\n<p>14 - dhr （Discontinuous permafrost extent with high ground ice content and thin overburden and exposed bedrock ）</p>\n<p>15 - shr （Sporadic permafrost extent with high ground ice content and thin overburden and exposed bedrock ）</p>\n<p>16 - ihr （Isolated patches of permafrost extent with high ground ice content and thin overburden and exposed bedrock）</p>\n<p>17 - clr （Continuous permafrost extent with low ground ice content and thin overburden and exposed bedrock ）</p>\n<p>18 - dlr （Discontinuous permafrost extent with low ground ice content and thin overburden and exposed bedrock ）</p>\n<p>19 - slr （Sporadic permafrost extent with low ground ice content and thin overburden and exposed bedrock）</p>\n<p>20 - ilr （Isolated patches of permafrost extent with low ground ice content and thin overburden and exposed bedrock ）</p>\n<p>21 - g （Glaciers）</p>\n<p>22 - r （Relict permafrost）</p>\n<p>23 - l （Inland lakes ）</p>\n<p>24 - o （Ocean/inland seas ）</p>\n<p>25 - ld （Land）</p>\n<p>(2) Comparison table of frozen soil range</p>\n<p>c = continuous (90-100%)</p>\n<p>d = discontinuous (50- 90%)</p>\n<p>s = sporadic (10- 50%)</p>\n<p>i = isolated patches ( 0 - 10%)</p>\n<p>(3) Comparison table of ice content</p>\n<p>h = high (&gt;20% for \"f\" landform codes) (&gt;10% for \"r\" landform codes)</p>\n<p>m = medium (10-20%)</p>\n<p>l = low (0-10%)</p>\n<p><hr/>\n<p>Projection of the shapefiles is:</p>\n<p>PROJCS[\"Sphere_ ARC_ INFO_ Lambert_ Azimuthal_ Equal_ Area\",</p>\n<p>GEOGCS[\"GCS_ Sphere_ ARC_ INFO\",</p>\n<p>DATUM[\"Sphere_ ARC_ INFO\", SPHEROID[\"Sphere_ ARC_ INFO\",6370997.0,0.0]],</p>\n<p>PRIMEM[\"Greenwich\",0.0],</p>\n<p>UNIT[\"Degree\",0.0174532925199433]],</p>\n<p>PROJECTION[\"Lambert_ Azimuthal_ Equal_ Area\"],</p>\n<p>PARAMETER[\"False_ Easting\",0.0],</p>\n<p>PARAMETER[\"False_ Northing\",0.0],</p>\n<p>PARAMETER[\"longitude_ Of_ center\",180.0],</p>\n<p>PARAMETER[\"latitude_ Of_ center\",90.0],</p>\n<p>UNIT[\"Meter\",1.0]]</p>\n<p>Projection for the raster (*.byte) files is:</p>\n<p>Projection: Lambert Azimuthal</p>\n<p>Units: meters</p>\n<p>Spheroid: defined</p>\n<p>Major Axis: 6371228.00000</p>\n<p>Minor Axis: 6371228.000</p>\n<p>Parameters:</p>\n<p>radius of the sphere of reference: 6371228.00000</p>\n<p>longitude of center of projection: 0</p>\n<p>latitude of center of projection: 90</p>\n<p>false easting (meters): 0.00000</p>\n<p>false northing (meters): 0.00000</p></p></p>",
            "ds_time_res": "",
            "ds_acq_place": "Circumpolar",
            "ds_space_res": "100000.0m",
            "ds_projection": "+proj=laea +lat_0=90 +lon_0=0 +x_0=0 +y_0=0 +a=6371228 +b=6371228 +units=m +no_defs ",
            "ds_process_way": "<p>Digital Vectorization</p>",
            "ds_ref_instruction": "In order to respect intellectual property rights, protect the rights and interests of data authors, expand data center services, and evaluate the application potential of data, data users are requested to clearly indicate the source of data and the data author in the research results generated by the use of data (including published papers, publications, data products and unpublished research reports, data products, etc.). For data reproduced (secondary or multiple publications), the author must also indicate the source of the original data. Chinese published results refer to the following specifications:\r\nThe data are from the results published in English by the National Natural Science Foundation of China's \"Western China Environmental and Ecological Science Data Center\" (http://westdc.westgis.ac.cn), according to the following specifications: The data set is provided by Environmental and Ecological Science Data Center for West China, National Natural Science Foundation of China (http://westdc.westgis.ac.cn)"
        }
    },
    "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,
    "ds_topic_tags": [
        "环北极",
        "状态图",
        "冻土"
    ],
    "ds_subject_tags": [
        "自然地理学"
    ],
    "ds_class_tags": [],
    "ds_locus_tags": [
        "环北极"
    ],
    "ds_time_tags": [],
    "ds_contributors": [
        {
            "true_name": "吴立宗",
            "email": "wulizong@pric.org.cn",
            "work_for": "国家极地科学数据中心",
            "country": "中国"
        }
    ],
    "ds_meta_authors": [
        {
            "true_name": "吴立宗",
            "email": "wulizong@pric.org.cn",
            "work_for": "国家极地科学数据中心",
            "country": "中国"
        }
    ],
    "ds_managers": [
        {
            "true_name": "李红星",
            "email": "lihongxing@lzb.ac.cn",
            "work_for": "中国科学院西北生态环境资源研究院",
            "country": "中国"
        }
    ],
    "category": "冻土"
}