数据集包括地表累计沉降量（time1_time2.tif）和形变速率（Lutan(2023年8月-2024年7月)形变速率监测结果.tif）。数据时间范围为（2023年08月—2024年7月），数据空间范围为（东经99.586°-99.855°，北纬29.923°-30.144°）。
", "ds_source": "数据来源于LT-1 SAR数据，在国土资源卫星中心获取。
", "ds_process_way": "通过影像配准、干涉像对组合、高相干点选取, 差分干涉、滤波、相位解缠、低频高频形变解算和地理编码等操作获取对应的地表形变速率和累计沉降量。
", "ds_quality": "大部分监测点形变值标准差均值为毫米级且符合正态分布，通过监测结果的内符合精度验证,表明监测结果都在亚厘米级别,监测结果的可靠性较高。
", "ds_acq_start_time": "2023-08-01 00:00:00", "ds_acq_end_time": "2024-07-31 00:00:00", "ds_acq_place": "理塘县域内", "ds_acq_lon_east": 99.55, "ds_acq_lat_south": 29.922777777777778, "ds_acq_lon_west": 99.85499999999999, "ds_acq_lat_north": 30.14388888888889, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 163618343, "ds_files_count": 13, "ds_format": "GeoTIFF", "ds_space_res": "3米", "ds_time_res": "15天", "ds_coordinate": "WGS84", "ds_projection": "GCS_WGS_1984", "ds_thumbnail": "7668eb1d-e50f-42b9-8056-d7f247600e2c.jpg", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "数据为GeoTIFF格式，常用的GIS处理软件（如ARCGIS）都可打开浏览。", "ds_from_station": null, "organization_id": "52b7b79b-860c-49a5-9083-9a70cf8bed5a", "ds_serv_man": "李红星", "ds_serv_phone": "0931-4967592", "ds_serv_mail": "lihongxing@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.3599" ], "quality_level": 3, "publish_time": "2024-12-23 17:36:24", "last_updated": "2025-04-29 14:53:33", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.GLACIER.DB6692.2024", "i18n": { "en": { "title": "The deformation inversion dataset of Litang area based on LT-1 (2023-2024)", "ds_format": "GeoTIFF", "ds_source": "The data is sourced from LT-1 SAR data and obtained from the Land and Resources Satellite Center.
", "ds_quality": "The average standard deviation of deformation values at most monitoring points is in the millimeter range and follows a normal distribution. Through the internal consistency accuracy verification of the monitoring results, it indicates that the monitoring results are at the sub centimeter level and have high reliability.
", "ds_ref_way": "", "ds_abstract": "The dataset includes cumulative surface subsidence (time1_time2.tif) and deformation rate (Lutan (August 2023 July 2024) deformation rate monitoring results. tif). The data time range is from August 2023 to July 2024, and the data space range is from 99.586 ° E to 99.855 ° E and from 29.923 ° N to 30.144 ° N.
", "ds_time_res": "15天", "ds_acq_place": "Within Litang County", "ds_space_res": "3米", "ds_projection": "GCS_WGS_1984", "ds_process_way": "The corresponding surface deformation rate and cumulative settlement are obtained through image registration, interferometric image pair combination, high coherence point selection, differential interferometry, filtering, phase unwrapping, low-frequency and high-frequency deformation calculation, and geographic coding operations.
", "ds_ref_instruction": "\r\nThe data is in GeoTIFF format and can be opened and browsed by commonly used GIS processing software such as ARCGIS." } }, "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": [ "冰川" ], "ds_subject_tags": [ "大地测量学其他学科" ], "ds_class_tags": [], "ds_locus_tags": [ "四川", "甘孜", "理塘" ], "ds_time_tags": [ 2023, 2024 ], "ds_contributors": [ { "true_name": "闫傲", "email": "yanao_99@163.com", "work_for": "中国地质大学（北京）", "country": "中国" }, { "true_name": "杨红磊", "email": "yanghonglei226@126.com", "work_for": "中国地质大学（北京）", "country": "中国" }, { "true_name": "刘友奉", "email": "jasonliuyf@163.com", "work_for": "中国地质大学（北京）", "country": "中国" }, { "true_name": "王泽平", "email": "447626218@qq.com", "work_for": "中国地质大学（北京）", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "闫傲", "email": "yanao_99@163.com", "work_for": "中国地质大学（北京）", "country": "中国" } ], "ds_managers": [ { "true_name": "赵国辉", "email": "zhgh@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": "冰川" }