本数据集为L波段机载微波辐射计于2012年6月30日获取，地点在黑河中游地区。其中L波段频率为1.4GHz，天顶角观测，V极化与H极化信息；飞机13:10（北京时间，下同）从张掖机场起飞，18:40降落。飞行历时5.5小时。在观测期间，飞行高度2500m左右，飞行速度220-250km/hr左右。\n
\n原始数据分为两部分，分别为微波辐射计数据和地理位置KMZ数据。微波辐射计数据包括V极化与H极化两个数据文件，每个数据文件包含所观测TB值和对应扫描波束ID、入射角、位置、时间标记(UTC)和其他飞行姿态信息。KMZ文件给出38.5入射角下飞行区域1公里网格TB值分布数据。飞机前和结束时微波辐射计分别进行了“热”和“冷”辐射校正。微波辐射计数据应考虑电磁波干扰影响，V极化TB值受电磁波干扰较强，H极化受影响较小。
", "ds_source": "其中L波段频率为1.4GHz，天顶角观测，V极化与H极化信息；飞机13:10（北京时间，下同）从张掖机场起飞，18:40降落。飞行历时5.5小时。在观测期间，飞行高度2500m左右，飞行速度220-250km/hr左右。
", "ds_process_way": "原始数据分为两部分，分别为微波辐射计数据和地理位置KMZ数据。微波辐射计数据包括V极化与H极化两个数据文件，每个数据文件包含所观测TB值和对应扫描波束ID、入射角、位置、时间标记(UTC)和其他飞行姿态信息。KMZ文件给出38.5入射角下飞行区域1公里网格TB值分布数据。\n
\n飞机前和结束时微波辐射计分别进行了“热”和“冷”辐射校正。微波辐射计数据应考虑电磁波干扰影响，V极化TB值受电磁波干扰较强，H极化受影响较小。
", "ds_quality": "数据质量良好
", "ds_acq_start_time": "2012-06-30 00:00:00", "ds_acq_end_time": "2012-07-01 00:00:00", "ds_acq_place": "黑河流域,中游人工绿洲试验区", "ds_acq_lon_east": 100.78888888888889, "ds_acq_lat_south": 38.66083333333333, "ds_acq_lon_west": 100.21194444444444, "ds_acq_lat_north": 39.12916666666667, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 53684616, "ds_files_count": 4, "ds_format": "word", "ds_space_res": null, "ds_time_res": "时", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "4f0ddbc3-fd42-4086-907c-2d9c0c60cb81.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "本数据由\"黑河生态水文遥感试验(（HiWATER)“产生，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。\n", "ds_from_station": null, "organization_id": "c94b3578-20da-4346-9de9-c702b6ca8983", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": null, "quality_level": 3, "publish_time": "2021-09-14 09:55:47", "last_updated": "2023-08-23 16:47:29", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.NIEER.2021.13", "i18n": { "en": { "title": "Heihe River eco hydrological remote sensing experiment: L-band airborne microwave radiometer data set in the middle reaches of Heihe River Basin (June 30, 2012)", "ds_format": "", "ds_source": "The L-band frequency is 1.4GHz, zenith angle observation, V polarization and H polarization information; The plane took off from Zhangye airport at 13:10 (Beijing time, the same below) and landed at 18:40. The flight lasted 5.5 hours. During the observation period, the flight altitude is about 2500m and the flight speed is about 220-250km / hr", "ds_quality": "
Good data quality
", "ds_ref_way": "", "ds_abstract": "This data set was acquired by L-band airborne microwave radiometer on June 30, 2012 in the middle reaches of Heihe River. The L-band frequency is 1.4GHz, zenith angle observation, V polarization and H polarization information; The plane took off from Zhangye airport at 13:10 (Beijing time, the same below) and landed at 18:40. The flight lasted 5.5 hours. During the observation period, the flight altitude is about 2500m and the flight speed is about 220-250km / hr.\n
\nThe original data is divided into two parts: microwave radiometer data and geographic location KMZ data. Microwave radiometer data includes two data files: V polarization and H polarization. Each data file contains the observed TB value and the corresponding scanning beam ID, incident angle, position, time stamp (UTC) and other flight attitude information. The KMZ file gives the TB value distribution data of 1km grid in the flight area at 38.5 incident angle. The microwave radiometer was calibrated for \"hot\" and \"cold\" radiation before and at the end of the aircraft. Electromagnetic wave interference shall be considered for microwave radiometer data. V-polarization TB value is strongly affected by electromagnetic wave interference and H-polarization is less affected
", "ds_time_res": "时", "ds_acq_place": "Heihe River Basin, middle reaches, artificial oasis, experimental area", "ds_space_res": "", "ds_projection": "", "ds_process_way": "The original data is divided into two parts: microwave radiometer data and geographic location KMZ data. Microwave radiometer data includes two data files: V polarization and H polarization. Each data file contains the observed TB value and the corresponding scanning beam ID, incident angle, position, time stamp (UTC) and other flight attitude information. The KMZ file gives the TB value distribution data of 1km grid in the flight area at 38.5 incident angle.\n
\nThe microwave radiometer was calibrated for \"hot\" and \"cold\" radiation before and at the end of the aircraft. Electromagnetic wave interference shall be considered for microwave radiometer data. V-polarization TB value is strongly affected by electromagnetic wave interference and H-polarization is less affected", "ds_ref_instruction": " \nThis data is generated by \"Heihe ecological hydrological remote sensing experiment (hiwater)\". When using the data, users should clearly state the source of the data in the text and quote the reference method provided by this metadata in the reference part." } }, "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": [ "机载地面遥感", "机载遥感", "微波辐射计" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "黑河流域", "中游人工绿洲试验区" ], "ds_time_tags": [ 2012 ], "ds_contributors": [ { "true_name": "李新", "email": "lixin@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" }, { "true_name": "车涛", "email": "chetao@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": "李新", "email": "lixin@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": "李新", "email": "lixin@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" }