黑河流域TM镶嵌影像，可以有效的用于流域土地利用变化监测，反映黑河流域2010年的现状，并作为生态规划和生态恢复提供可靠依据。
\n\n该镶嵌图收集了USGS免费发布的2010年的TM影像（时间为2010年7月至9月，共21景，数据最大云量不超过10%），通过地形图对预处理的影像进行了几何配准（多项式几何校正方法），生成了经过几何精校正的数字镶嵌图，经过一定的精度评价，该图质量较高。
\n\n影像存储的格式为ERDAS的IMG格式，选用信息量最为丰富的5、4、3波段组合配以红、绿、蓝三种颜色生成彩色合成图象，这个组合的合成图象不仅类似于自然色，较为符号人们的视觉习惯，而且由于信息量丰富，能充分显示各种地物影像特征的差别。
", "ds_source": "USGS免费发布的2010年的TM影像（时间为2010年7月至9月，共21景，数据最大云量不超过10%）
", "ds_process_way": "几何配准（多项式几何校正方法）
", "ds_quality": "经过一定的精度评价，该图质量较高
", "ds_acq_start_time": "2010-07-01 00:00:00", "ds_acq_end_time": "2010-09-30 00:00:00", "ds_acq_place": "黑河流域", "ds_acq_lon_east": 104.25, "ds_acq_lat_south": 37.61666666666667, "ds_acq_lon_west": 96.01666666666667, "ds_acq_lat_north": 43.266666666666666, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 498700857, "ds_files_count": 3, "ds_format": "栅格", "ds_space_res": "27.0m", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs ", "ds_thumbnail": "51de0a71-3071-4808-b8d1-03d9c03f95ac.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "9c4867b1-5cb1-4de0-abeb-df42547bf41e", "ds_serv_man": "黑河计划数据管理中心", "ds_serv_phone": "0931-4967287", "ds_serv_mail": "westdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2020-12-18 14:43:34", "last_updated": "2023-08-23 16:46:59", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.Westdc.2020.454", "i18n": { "en": { "title": "Digital mosaic of TM images of the Heihe River Basin in 2010", "ds_format": "Raster", "ds_source": "2010 TM image released free of charge by USGS (from July to September 2010, 21 scenes in total, with the maximum cloud amount not exceeding 10%)
", "ds_quality": "After a certain accuracy evaluation, the quality of the drawing is high
", "ds_ref_way": "", "ds_abstract": "TM mosaic image of Heihe River basin can be effectively used for monitoring land use change in the basin, reflecting the current situation of Heihe River Basin in 2010, and providing reliable basis for ecological planning and ecological restoration.
\nThe mosaic collects the TM images of 2010 released by USGS free of charge (from July to September 2010, a total of 21 scenes, and the maximum cloud amount of data is no more than 10%). Through the topographic map, geometric registration (polynomial geometric correction method) is carried out for the preprocessed images, and the digital mosaic map after geometric correction is generated. After a certain accuracy evaluation, the quality of the map is high.
\nThe format of image storage is the IMG format of ERDAS. The most abundant 5, 4 and 3-band combination with red, green and blue colors is selected to generate color composite image. The composite image is not only similar to the natural color, but also more symbolic of people's visual habits. Due to the rich information, it can fully display the differences of image features of various features.
", "ds_time_res": "", "ds_acq_place": "Heihe River Basin", "ds_space_res": "27.0m", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs ", "ds_process_way": "Geometric registration (polynomial geometric correction method)
", "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, "ds_topic_tags": [ "遥感影像", "数字镶嵌图", "Landsat TM" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "黑河流域" ], "ds_time_tags": [ 2010 ], "ds_contributors": [ { "true_name": "黑河计划数据管理中心", "email": "westdc@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "" } ], "ds_meta_authors": [ { "true_name": "黑河计划数据管理中心", "email": "westdc@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "" } ], "ds_managers": [ { "true_name": "黑河计划数据管理中心", "email": "westdc@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "" } ], "category": "基础地理" }