该数据集对扫描图《中国400万冰雪冻土图》（施雅风、米德生，1988）进行几何校正，然后通过数字化，综合考虑海拔和纬度，结合多年冻土的连续性将冻土划分为：高纬度多年冻土的大片多年冻土、岛状融区多年冻土和岛状多年冻土；高海拔多年冻土和高山多年冻土（包括阿尔泰山，天山，祁连山、横断山、喜马拉雅山及中国东部的太白山、黄岗梁和长白山）和高原多年冻土（青藏高原），高原多年冻土（青藏高原）又分为大片多年冻土和岛状多年冻土；季节冻土、瞬时冻土和无冻土区。
", "ds_source": "该数据集对扫描图《中国400万冰雪冻土图》（施雅风、米德生，1988）进行几何校正，然后通过数字化，综合考虑海拔和纬度，结合多年冻土的连续性将冻土划分为：高纬度多年冻土的大片多年冻土、岛状融区多年冻土和岛状多年冻土；高海拔多年冻土和高山多年冻土（包括阿尔泰山，天山，祁连山、横断山、喜马拉雅山及中国东部的太白山、黄岗梁和长白山）和高原多年冻土（青藏高原），高原多年冻土（青藏高原）又分为大片多年冻土和岛状多年冻土；季节冻土、瞬时冻土和无冻土区。
", "ds_process_way": "对扫描图《中国400万冰雪冻土图》进行几何校正，然后通过数字化，最后将冻土进行划分。
", "ds_quality": "数据质量良好。
", "ds_acq_start_time": "1988-01-01 00:00:00", "ds_acq_end_time": null, "ds_acq_place": "中国", "ds_acq_lon_east": 103.0, "ds_acq_lat_south": 36.0, "ds_acq_lon_west": 95.0, "ds_acq_lat_north": 40.0, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 2713960, "ds_files_count": 9, "ds_format": "SHP", "ds_space_res": "40000.0m", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "albers", "ds_thumbnail": "69078ce0-4d34-40fd-8d74-176e96fd902d.png", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "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": "2021-11-15 14:52:25", "last_updated": "2024-05-28 17:14:52", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.Westdc.2020.305", "i18n": { "en": { "title": "Distribution Map of Frozen Ground in China based on Map of Snow, Ice and Frozen Ground in China", "ds_format": "SHP", "ds_source": "In this data set, geometric correction is made to the scanning map of China's 4 million ice and snow permafrost (Shi Yafeng, Mead Sheng, 1988), and then the permafrost is divided into: large permafrost of high latitude permafrost, island like permafrost and island like permafrost, high altitude permafrost and alpine permafrost with comprehensive consideration of altitude and latitude, combined with the continuity of permafrost Soil (including Altai mountain, Tianshan Mountain, Qilian Mountain, Hengduan Mountain, Himalaya mountain, Taibai Mountain, huanggangliang mountain and Changbai Mountain in East China) and plateau permafrost (Qinghai Tibet Plateau). Plateau permafrost (Qinghai Tibet Plateau) is divided into large permafrost and island permafrost; seasonal permafrost, instantaneous permafrost and non permafrost area.\n
", "ds_quality": "Good data quality
", "ds_ref_way": "", "ds_abstract": "The scanned picture of the Map of Snow Ice and Frozen Ground in China (1:4,000,000) (Shi Yafeng, Meidesheng, 1988) is geometrically corrected and then digitized in the data set, and by taking altitude and latitude into account in combination with the continuity of permafrost, the frozen soil is divided into the predominant permafrost of high-latitude permafrost, island talik permafrost and island permafrost; high-altitude permafrost and mountain permafrost (including Altai, Tianshan Mountain, Qilian Mountain, Hengduan, the Himalayas and Taibai Mountain in East China, Huanggangliang and Changbai Mountain), and the plateau permafrost (the Tibetan Plateau), which is divided into predominant permafrost and island permafrost; and seasonal frozen soil, instantaneous frozen soil and nonfrozen areas.\n
", "ds_time_res": "", "ds_acq_place": "China", "ds_space_res": "40000.0m", "ds_projection": "albers", "ds_process_way": "Perform geometric correction on the scanned image of China's 4 million ice and snow permafrost map, then digitize it and finally divide the permafrost.
", "ds_ref_instruction": "In order 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 authors in the research results (including published papers, works, data products and unpublished research reports, data products, etc.) produced by using data. For data reprinted (secondary or multiple releases), the author must also indicate the source of the original data." } }, "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": [ "冻土", "几何校正", "数字化" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "中国" ], "ds_time_tags": [ 1988 ], "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": "敏玉芳", "email": "myf@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" }