该图是施雅风先生和米德生编制的《中国1:400万冰雪冻土图》，地图编制的工作地图为《中华人民共和国汉语拼音版》，保留了地图的水系及山脉注记，并增加了一些山文注记。编绘冻土图的依据是：冻土调查和勘探的实际资料、遥感资料的判译、影响冻土形成和分布的气温条件及地形特征。冰川雪线高度以等值线表示其变化趋势。季节性积雪与季节性结冰是综合依据了全国1600个气象观测台站资料和多年考察结果以等值线加注记和符号表示、冷生（冰缘）现象选择具有代表性且经实地观察到的给予示意性的表示。多年冻土和非多年冻土范围界线，依据考察现场资料经计算而编制成图，其综合程度较高（特普费尔著，1982）
\n\n《中国冰雪冻土图》反映了冰川、积雪、冻土及冰缘分布的规模、类型、特征，以及在科学研究上的价值和生产实践中利用、防治的前景。表现了我们三十年来在冰川冻土科研方面的成果。
", "ds_source": "该图是施雅风先生和米德生编制的《中国1:400万冰雪冻土图》，地图编制的工作地图为《中华人民共和国汉语拼音版》，保留了地图的水系及山脉注记，并增加了一些山文注记。编绘冻土图的依据是：冻土调查和勘探的实际资料、遥感资料的判译、影响冻土形成和分布的气温条件及地形特征。冰川雪线高度以等值线表示其变化趋势。季节性积雪与季节性结冰是综合依据了全国1600个气象观测台站资料和多年考察结果以等值线加注记和符号表示、冷生（冰缘）现象选择具有代表性且经实地观察到的给予示意性的表示。多年冻土和非多年冻土范围界线，依据考察现场资料经计算而编制成图，其综合程度较高（特普费尔著，1982）
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", "ds_acq_start_time": "1988-01-01 00:00:00", "ds_acq_end_time": null, "ds_acq_place": "中国", "ds_acq_lon_east": 135.5, "ds_acq_lat_south": 17.766666666666666, "ds_acq_lon_west": 73.19972222222222, "ds_acq_lat_north": 53.86638888888889, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 447491596, "ds_files_count": 5, "ds_format": "矢量", "ds_space_res": "40000.0m", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "Albers", "ds_thumbnail": "fdc9fd10-3659-4002-bf65-8488e7f9630d.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。", "ds_from_station": null, "organization_id": "9c4867b1-5cb1-4de0-abeb-df42547bf41e", "ds_serv_man": "李红星 ", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2021-01-08 09:32:22", "last_updated": "2023-08-23 16:46:56", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.Westdc.2020.301", "i18n": { "en": { "title": "1:4000,000 Map of Snow, Ice, and Frozen Ground in China", "ds_format": "Vector", "ds_source": "The map is a map of 1:4 million ice and snow permafrost in China compiled by Mr. Shi Yafeng and Mr. Mi Desheng. The working map is the Pinyin version of the people's Republic of China. The water system and mountain range notes of the map are preserved, and some mountain notes are added. The compilation of permafrost map is based on the actual data of permafrost investigation and exploration, the interpretation of remote sensing data, the temperature conditions and topographic characteristics that affect the formation and distribution of permafrost. The snow line height of glacier shows its changing trend with isoline. According to the data of 1600 meteorological observation stations in China and the results of many years' investigation, the seasonal snow and seasonal ice are represented by isoline mark and symbol, and the selection of cold growing (ice edge) phenomenon is representative and given a schematic representation through field observation. The boundaries between permafrost and non permafrost are calculated and mapped according to the field investigation data, which is highly comprehensive (tepfel, 1982)
", "ds_quality": "Good data quality
", "ds_ref_way": "", "ds_abstract": "The map is a map of 1:4 million ice and snow permafrost in China compiled by Mr. Shi Yafeng and Mr. Mi Desheng. The working map is the Pinyin version of the people's Republic of China. The water system and mountain range notes of the map are preserved, and some mountain notes are added. The compilation of permafrost map is based on the actual data of permafrost investigation and exploration, the interpretation of remote sensing data, the temperature conditions and topographic characteristics that affect the formation and distribution of permafrost. The snow line height of glacier shows its changing trend with isoline. According to the data of 1600 meteorological observation stations in China and the results of many years' investigation, the seasonal snow and seasonal ice are represented by isoline mark and symbol, and the selection of cold growing (ice edge) phenomenon is representative and given a schematic representation through field observation. The boundaries between permafrost and non permafrost are calculated and mapped according to the field investigation data, which is highly comprehensive (tepfel, 1982)
\nThe map of ice and snow permafrost in China reflects the scale, type and characteristics of glacier, snow, frozen soil and ice margin distribution, as well as the value in scientific research and the prospect of utilization and prevention in production practice. It shows our achievements in the research of glaciers and permafrost in the past 30 years.
", "ds_time_res": "", "ds_acq_place": "China", "ds_space_res": "40000.0m", "ds_projection": "Albers", "ds_process_way": "Digital Vectorization
", "ds_ref_instruction": "To respect intellectual property rights, protect the rights and interests of data authors, expand the services of data centers, and evaluate the application potential of data, data users are requested to clearly indicate the data source and data author in the research results generated from the use of data (including publicly published papers, works, data products, and unpublished research reports, data products, etc.). For data reprinted (for secondary or multiple releases), the author must also indicate the source of the original data." } }, "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": [ "冻土", "冰川", "积雪" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "中国" ], "ds_time_tags": [ 1988 ], "ds_contributors": [ { "true_name": "施雅风,米德生", "email": "", "work_for": "中国科学院兰州冰川冻土研究所", "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": "施雅风,米德生", "email": "", "work_for": "中国科学院兰州冰川冻土研究所", "country": "中国" } ], "category": "冻土" }