本数据集针对贡嘎山地区，利用遥感影像获取的2015年该地区数字高程模型。数据集包含1个波段，主要通过资源三号遥感影像立体像对生成的数字高程模型。只针对2015年当年冰川表面高程，故不进行补充和完善，采用完全开放共享。数据集包含DEM2015，共1个波段。数据集文件名及波段名称对应如下：数据集文件名：2015年贡嘎山地区数字高程模型数据集，DEM2015——2015年该地区数字高程模型（单位：米(m)）。
", "ds_source": "本数据集主要为解译数据，数据主要来源资源三号遥感数据。
", "ds_process_way": "通过资源三号立体相对正视和后视影像，在ENVI5.1下，通过DEM提取模块获取的冰川区数字高程模型。
", "ds_quality": "采用ENVI 4.7 软件中的“DEM Extraction”模块，对立体像对进行DEM数据提取。利用 数据源中的辐射校正参数对立体像对进行校正，从而消除 影像中的条带效应，提高DEM 数据提取的稳定性和可靠性。在DEM 数据提取过程中，按照典型研究区的分布对立体像对进行分区块处理覆盖每个典型研究区的立体像对至少采用20 个GCP，且均匀分布在非冰川区，其中高程控制点提取自中国历史地形图数据，平面控制点提取自同时期的LandSat TM+影像。
", "ds_acq_start_time": "2015-02-01 00:00:00", "ds_acq_end_time": "2016-08-01 00:00:00", "ds_acq_place": "贡嘎山", "ds_acq_lon_east": 102.06666666666666, "ds_acq_lat_south": 29.366666666666667, "ds_acq_lon_west": 101.7, "ds_acq_lat_north": 29.8, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 12756616, "ds_files_count": 3, "ds_format": "TIFF", "ds_space_res": "30.0m", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "d42ea324-a2bc-42cb-b75e-f927bd49c000.jpg", "ds_thumb_from": 2, "ds_ref_way": "曹泊, 潘保田, 王杰， 等. 兰州大学. 2015年贡嘎山地区数字高程模型数据集. 2019。曹泊, 张国梁，2015年贡嘎山地区数字高程模型数据集，国家冰川冻土沙漠科学数据中心(www.ncdc.ac.cn)，2019，doi：10.12072/DIMaC.0008.2020.db", "paper_ref_way": "", "ds_ref_instruction": "2015年贡嘎山地区数字高程模型数据集来源于科技基础性工作专项“中国西部主要冰川作用中心冰量变化调查（2013FY111400）”。数据产权属于兰州大学。本数据集可用地理信息系统软件进行图形可视化。", "ds_from_station": "中国西部主要冰川作用中心冰量变化调查", "organization_id": "75b2f6d5-c7ed-438c-b7be-98672c057ed5", "ds_serv_man": "李红星", "ds_serv_phone": "0931-4967592", "ds_serv_mail": "lihongxing@lzb.ac.cn", "doi_value": "", "subject_codes": null, "quality_level": 3, "publish_time": "2020-12-17 16:47:13", "last_updated": "2023-05-16 17:35:27", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.DIMaC.2020.118", "i18n": { "en": { "title": "2015 Digital Elevation Model Dataset for the Gonggar Mountain Region", "ds_format": "", "ds_source": "This data set is mainly interpreted data, and the main source of data is the remote sensing data of resource 3.
", "ds_quality": "The DEM extraction module of Envi 4.7 software is used to extract DEM data from stereo image pairs. In order to eliminate the stripe effect and improve the stability and reliability of DEM data extraction, the radiometric correction parameters in the data source are used to correct the stereo image pair. In the process of DEM data extraction, according to the distribution of typical research areas, the stereo image pairs are divided into blocks, covering at least 20 GCPs in each typical research area, and evenly distributed in non glacial areas. The elevation control points are extracted from the historical topographic map data of China, and the plane control points are extracted from the Landsat TM + image of the same period.
", "ds_ref_way": "\nCao Bo, Pan Baotian, Wang Jie, et al. Lanzhou University. 2015 digital elevation model dataset of Gongga mountain area. 2019. Cao Bo, Zhang Guoliang, 2015 digital elevation model data set of Gongga mountain area, national glacier frozen soil desert scientific data center（ www.ncdc.ac.cn )，2019，doi：10.12072/DIMaC.0008.2020.db", "ds_abstract": "This data set aims at Gongga mountain area, and obtains the digital elevation model of the area in 2015 by using remote sensing images. The data set contains one band, which is mainly generated by stereo image pair of ZY-3 remote sensing image. Only for the glacier surface elevation in 2015, so it will not be supplemented and improved, and fully open sharing is adopted. The data set contains dem2015, a total of 1 band. Data set file name and band name are as follows: data set file name: 2015 Gongga Mountain digital elevation model data set, dem2015-2015 digital elevation model of the region (unit: meter (m)).
", "ds_time_res": "", "ds_acq_place": "Gongga Mountain", "ds_space_res": "30.0m", "ds_projection": "", "ds_process_way": "Digital elevation model of the glacier area obtained by the DEM extraction module under ENVI5.1 from Resource 3 stereo relative ortho- and hind-view images.
", "ds_ref_instruction": "\nThe data set of digital elevation model (DEM) in Gongga Mountain Area in 2015 is derived from the special project of basic scientific and technological work \"investigation on ice quantity change of major glaciation centers in Western China (2013fy111400)\". The property right of data belongs to Lanzhou University. The data set can be visualized by GIS software." } }, "submit_center_id": "ncdc", "data_level": 0, "recommendation_value": 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": [ "DEM", "立体像对", "贡嘎山" ], "ds_subject_tags": [], "ds_class_tags": [], "ds_locus_tags": [ "贡嘎山" ], "ds_time_tags": [ 2015 ], "ds_contributors": [ { "true_name": "曹泊", "email": "caobo@lzu.edu.cn", "work_for": "兰州大学", "country": "" }, { "true_name": "张国梁", "email": "", "work_for": "兰州大学", "country": "" } ], "ds_meta_authors": [ { "true_name": "吴坤鹏", "email": "wukunpeng2008@lzb.ac.cn", "work_for": "云南大学国际河流与生态安全研究院", "country": "中国" } ], "ds_managers": [ { "true_name": "曹泊", "email": "caobo@lzu.edu.cn", "work_for": "兰州大学", "country": "" } ], "category": "冰川" }