{ "created": "2023-10-16 10:28:05", "updated": "2026-05-01 14:53:48", "id": "9773df1f-c6c5-492c-88b1-50195a1564fc", "version": 3, "ds_topic": null, "title_cn": "甘肃省Landsat遥感数据集（2018-2022年）", "title_en": "Landsat Remote Sensing Dataset in Gansu Province (2018-2022)", "ds_abstract": "

  该数据集包括甘肃省Landsat8的L1级和L2级数据产品。数据产品空间分辨率为30m，云量小于20%。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处理。", "ds_source": "

  数据来源于美国地质勘探局：https://earthexplorer.usgs.gov/。", "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处理。", "ds_quality": "

  数据质量良好。", "ds_acq_start_time": "2018-01-01 00:00:00", "ds_acq_end_time": "2022-12-31 00:00:00", "ds_acq_place": "甘肃省", "ds_acq_lon_east": 108.7075, "ds_acq_lat_south": 32.596111111111114, "ds_acq_lon_west": 92.33777777777777, "ds_acq_lat_north": 42.79333333333333, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 6192152363879, "ds_files_count": 5490, "ds_format": "dat", "ds_space_res": "30m", "ds_time_res": "/", "ds_coordinate": "WGS84", "ds_projection": "/", "ds_thumbnail": "9773df1f-c6c5-492c-88b1-50195a1564fc.png", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "用户在使用数据时请在正文中明确声明数据的来源，并在参考文献部分引用本元数据提供的引用方式。", "ds_from_station": null, "organization_id": "526ff655-4cd4-4650-bb86-6fd3481dfb65", "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": "2023-10-24 16:04:54", "last_updated": "2025-05-29 16:26:13", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.GSEER.DB4043.2023", "i18n": { "en": { "title": "Landsat Remote Sensing Dataset in Gansu Province (2018-2022)", "ds_format": "dat", "ds_source": "

  Data sourced from the United States Geological Survey: https://earthexplorer.usgs.gov/ .", "ds_quality": "

 The data quality is good.", "ds_ref_way": "", "ds_abstract": "

 This dataset includes L1 and L2 level data products from Landsat8 in Gansu Province. The spatial resolution of the data product is 30m, and the cloud cover is less than 20%. L1 level data products only use geometrically corrected data without radiometric calibration or atmospheric correction; L2 level data products have undergone radiometric calibration, atmospheric correction, and geometric correction processing.

", "ds_time_res": "/", "ds_acq_place": "Gansu Province", "ds_space_res": "30m", "ds_projection": "/", "ds_process_way": "

 L1 level data products only use geometrically corrected data without radiometric calibration or atmospheric correction; L2 level data products have undergone radiometric calibration, atmospheric correction, and geometric correction processing.", "ds_ref_instruction": "When using data, please clearly state the source of the data in the main text and cite the citation provided by this metadata in the reference section." } }, "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": [ "甘肃省", "Landsat8", "L1级", "L2级" ], "ds_subject_tags": [ "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "甘肃省" ], "ds_time_tags": [ 2018, 2019, 2020, 2021, 2022 ], "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" }