{ "created": "2021-09-23 10:42:37", "updated": "2026-04-28 20:11:10", "id": "0129b3c3-5e41-4d58-8273-449668fa8445", "version": 5, "ds_topic": null, "title_cn": "渭河流域Landsat遥感数据集（2009-2020年）", "title_en": "Landsat Remote Sensing Dataset for the Weihe River Basin (2009-2020)", "ds_abstract": "

  本数据集包含渭河流域Landsat ETM的L1级数据产品和Landsat8的L1级、L2级数据产品。数据均来源于美国国家航空航天网站（http://ladsweb.nascom.nasa.gov/data/search.html)\n

  该数据产品空间分辨率为30m，云量小于20%，空间范围是：103°58′17″—110°16′28″；33°41′46″—37°24′30″。其中Landsat ETM数据产品的时间范围是2009年1月1日-2012年12月31日；Landsat8的L1级、L2级数据的时间范围是2013年1月1日-2020年12月31日。\n

   L1级数据产品只是通过几何校正过的数据，未进行辐射定标和大气校正；L2级数据产品已进行辐射定标、大气校正和几何校正的处理。", "ds_source": "

  Landsat ETM的L1级数据产品和Landsat8的L1级、L2级数据产品，数据均来源于美国国家航空航天网站（http://ladsweb.nascom.nasa.gov/data/search.html）。", "ds_process_way": "

  L1级数据产品只是通过几何校正过的数据，未进行辐射定标和大气校正；L2级数据产品已进行辐射定标、大气校正和几何校正的处理。", "ds_quality": "

  云量小于20%，数据质量良好。", "ds_acq_start_time": "2009-01-01 00:00:00", "ds_acq_end_time": "2020-12-31 00:00:00", "ds_acq_place": "渭河流域", "ds_acq_lon_east": 110.27444444444444, "ds_acq_lat_south": 33.69611111111111, "ds_acq_lon_west": 103.9713888888889, "ds_acq_lat_north": 37.40833333333333, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 2841267944736, "ds_files_count": 3373, "ds_format": "dat", "ds_space_res": "30m", "ds_time_res": "日", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "0129b3c3-5e41-4d58-8273-449668fa8445.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "0d5fea4e-6fd7-4c70-b28b-3f91204c579a", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.45" ], "quality_level": 3, "publish_time": "2021-10-13 11:39:09", "last_updated": "2025-05-29 17:28:36", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.WRiver.2021.32", "i18n": { "en": { "title": "Landsat Remote Sensing Dataset for the Weihe River Basin (2009-2020)", "ds_format": "dat", "ds_source": "

  Landsat ETM's L1-class data products and Landsat8's L1-class and L2-class data products, with data from the National Aeronautics and Space website (http://ladsweb.nascom.nasa.gov/data/search.html).", "ds_quality": "

  Cloudiness is less than 20% and data quality is good.", "ds_ref_way": "", "ds_abstract": "

  This dataset contains L1-level data products from Landsat ETM and L1-level and L2-level data products from Landsat8 for the Weihe River Basin. The data were all obtained from the US National Aeronautics and Space website (http://ladsweb.nascom.nasa.gov/data/search.html)\n

  The data products have a spatial resolution of 30m and less than 20% cloudiness, with a spatial range of 103°58′17″-110°16′28″; 33°41′46″-37°24′30″. The time range of Landsat ETM data products is January 1, 2009-December 31, 2012; the time range of Landsat8's L1-level and L2-level data is January 1, 2013-December 31, 2020.\n

  L1 data products are only geometrically corrected data without radiometric calibration and atmospheric correction; L2 data products have been processed with radiometric calibration, atmospheric correction and geometric correction.

", "ds_time_res": "日", "ds_acq_place": "Weihe River Basin", "ds_space_res": "30m", "ds_projection": "", "ds_process_way": "

  L1 data products are only geometrically corrected data without radiometric calibration and atmospheric correction; L2 data products have been processed with radiometric calibration, atmospheric correction and geometric correction.", "ds_ref_instruction": "" } }, "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": [ "Landsat ETM", "Landsat8", "辐射定标", "大气校正", "几何校正" ], "ds_subject_tags": [ "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "渭河流域" ], "ds_time_tags": [ 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 ], "ds_contributors": [ { "true_name": "张耀南", "email": "yaonan@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "李红星", "email": "lihongxing@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "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": "遥感及产品" }