本数据包括新疆湖泊和河流要素，采用Albers等面积割圆锥投影，以2000年度TM遥感影像，利用ENVI、eCognition软件分类提取湖泊和河流要素，生成新疆湖泊与河流分布数据。数据属性信息见本数据文档。该数据可作为调查新疆地区湖泊和河流分布概况提供科学数据支持。2000年新疆1:25万湖泊与河流分布数据由中国科学院新疆生态与地理研究所采用全数字化的方式独立完成，主要数据源： 1. 2000年度TM遥感数据 上述数据来自本研究所多年科研成果的积累。", "ds_source": "
基于遥感影像。
", "ds_process_way": "利用ENVI软件，通过波段选取、波段计算，矢量叠加等方法 主要环节： 1. 波段选取，选取对水体反映强烈的绿波段和近红外波段； 2. 波段计算，水体提取公式：TM2+TM3-TM4-TM5 3. 矢量叠加，在生成的矢量层下叠加TM数据，进行人工干预修正。
", "ds_quality": "数据采集按照矢量化标准执行，严格按照TM数据进行修正。
", "ds_acq_start_time": "2000-01-01 00:00:00", "ds_acq_end_time": "2000-12-31 00:00:00", "ds_acq_place": "新疆维吾尔自治区", "ds_acq_lon_east": 98.0, "ds_acq_lat_south": 34.0, "ds_acq_lon_west": 72.0, "ds_acq_lat_north": 49.0, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 1843264, "ds_files_count": 6, "ds_format": "矢量", "ds_space_res": null, "ds_time_res": "年", "ds_coordinate": "WGS84", "ds_projection": "采用及亚尔伯斯投影", "ds_thumbnail": "d9c87a38-cdec-43f6-9c8c-f6ce82a8bce4.png", "ds_thumb_from": 0, "ds_ref_way": "[1]李均力，“2000年新疆1:25万湖泊与河流分布数据”，中科院新疆生态与地理研究所，2010", "paper_ref_way": "", "ds_ref_instruction": "None", "ds_from_station": null, "organization_id": "52b7b79b-860c-49a5-9083-9a70cf8bed5a", "ds_serv_man": "李锦", "ds_serv_phone": "09917827369", "ds_serv_mail": "lijin@ms.xjb.ac.cn", "doi_value": "", "subject_codes": null, "quality_level": 3, "publish_time": "2021-01-12 19:55:28", "last_updated": "2023-08-22 02:10:02", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.nieer.2020.1304", "i18n": { "en": { "title": "Distribution data of 1:250000 lakes and rivers in Xinjiang in 2000", "ds_format": "", "ds_source": "Based on remote sensing image.
", "ds_quality": "The data acquisition shall be carried out according to the vectorization standard and corrected in strict accordance with TM data.
", "ds_ref_way": "[1] Li Junli, \"distribution data of 1:250000 lakes and rivers in Xinjiang in 2000\", Xinjiang Institute of ecology and geography, Chinese Academy of Sciences, 2010
", "ds_abstract": "This data includes the elements of lakes and rivers in Xinjiang. Using the 2000 TM remote sensing image and using ENVI and ecognition software to extract the elements of lakes and rivers and generate the distribution data of lakes and rivers in Xinjiang. See this data document for data attribute information. The data can be used to provide scientific data support for investigating the distribution of lakes and rivers in Xinjiang.
", "ds_time_res": "年", "ds_acq_place": "Xinjiang Uygur Autonomous Region", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Using envi software, through band selection, band calculation, vector superposition and other methods, the main links are as follows: 1. Band selection, select the green band and near-infrared band that strongly reflect the water body; 2. Band calculation, water extraction formula: TM2 + tm3-tm4-tm5 3. Vector superposition, overlay TM data under the generated vector layer, and carry out manual intervention and correction.
", "ds_ref_instruction": " \nIn 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", "ds_topic_tags": [ "自然资源数据库\\水资源", "水资源", "新疆", "湖泊", "河流" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "新疆维吾尔自治区" ], "ds_time_tags": [ 2000 ], "ds_contributors": [ { "true_name": "李均力", "email": "lijl@ms.xjb.ac.cn", "work_for": "中科院新疆生态与地理研究所", "country": "" } ], "ds_meta_authors": [ { "true_name": "李锦", "email": "lijin@ms.xjb.ac.cn", "work_for": "新疆生态与地理研究所", "country": "中国" } ], "ds_managers": [ { "true_name": "李锦", "email": "lijin@ms.xjb.ac.cn", "work_for": "新疆生态与地理研究所", "country": "中国" }, { "true_name": "李均力", "email": "lijl@ms.xjb.ac.cn", "work_for": "中科院新疆生态与地理研究所", "country": "" } ], "category": "水文" }