本数据集为L&K波段机载微波辐射计于2008年03月19日获取，地点在阿柔-扁都口飞行区。\n
\n其中L波段频率为1.4GHz，后视35度观测，获取双极化（H和V）信息；K波段频率为18.7GHz，天顶角观测，无极化信息。飞机9:25BJT从张掖机场起飞，12:50降落。9:38-9:39飞过双树寺水库，相对航高800m，水面结冰。9:50-11:00在阿柔摄区工作，飞行高度4100m左右，飞行速度270km/hr左右。11:20-12:25在扁都口摄区工作，飞行高度4200m左右，飞行速度290km/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GPS数据。其中微波辐射计L和K波段均属非成像观测，由文本文件记录瞬时观测获得的数码值，GPS数据记录飞行时的经纬度以及飞机姿态参数等。\n
\n使用微波辐射计观测数据时需要根据定标系数将记录的数码值转换为亮温值（定标系数文件与原始观测数据归档在一起）。同时，通过微波辐射计和GPS各自的时钟记录，可以将微波观测与GPS记录联系起来，给微波观测匹配地理坐标信息。由于微波辐射计观测分辨率较粗，数据处理中一般忽略飞机的航偏、翻滚以及俯仰效应。\n
\n根据使用目标及飞行相对航高（H），在定标和坐标匹配后，还可以将观测信息栅格化，L和K波段的分辨率（x）与观测足迹（footprint）可以认为一致，参考分辨率为：L波段，x=0.3H；K波段，x=0.24H。经过以上各步处理后，可以获得用户能够直接使用的产品。", "ds_source": "
原始数据分为两部分，分别为微波辐射计数据和GPS数据。其中微波辐射计L和K波段均属非成像观测，由文本文件记录瞬时观测获得的数码值，GPS数据记录飞行时的经纬度以及飞机姿态参数等。", "ds_process_way": "
使用微波辐射计观测数据时需要根据定标系数将记录的数码值转换为亮温值（定标系数文件与原始观测数据归档在一起）。同时，通过微波辐射计和GPS各自的时钟记录，可以将微波观测与GPS记录联系起来，给微波观测匹配地理坐标信息。", "ds_quality": "
数据质量良好", "ds_acq_start_time": "2008-03-19 00:00:00", "ds_acq_end_time": "2008-03-19 00:00:00", "ds_acq_place": "黑河流域", "ds_acq_lon_east": 100.59055555555555, "ds_acq_lat_south": 34.35, "ds_acq_lon_west": 100.95, "ds_acq_lat_north": 34.916666666666664, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 1829728, "ds_files_count": 2, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "分、日、次", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "2582e0fc-86d2-41a3-b04a-76e0fe155267.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "本数据由“黑河综合遥感联合试验”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", "ds_from_station": null, "organization_id": "14df1d8b-6362-4c0f-b88e-b46d4abe5db9", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596 ", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "10.12072/ncdc.NIEER.db1729.2022", "subject_codes": [], "quality_level": 3, "publish_time": "2021-09-14 09:58:31", "last_updated": "2023-11-02 14:50:43", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.NIEER.2021.12", "i18n": { "en": { "title": "Heihe River Integrated Remote Sensing joint test: L & K band airborne microwave radiometer data set in ARJO biandukou flight area (March 19, 2008)", "ds_format": "", "ds_source": "
The original data is divided into two parts: microwave radiometer data and GPS data. The L and K bands of microwave radiometer are non imaging observations. The digital values obtained from instantaneous observations are recorded by text files, and the longitude and latitude during flight and aircraft attitude parameters are recorded by GPS data.", "ds_quality": "
Good data quality", "ds_ref_way": "", "ds_abstract": "
This data set was acquired by L & K-band airborne microwave radiometer on March 19, 2008 at the flight area of Ajo biandukou.\n
\nThe L-band frequency is 1.4GHz, and the back view is 35 degrees to obtain the dual polarization (H and V) information; K-band frequency is 18.7ghz, zenith angle observation, no polarization information. The plane took off from Zhangye airport at 9:25bjt and landed at 12:50. 9: At 38-9:39, it flew over shuangshusi reservoir with a relative navigation height of 800m and the water surface was frozen. 9: At 50-11:00, he worked in the arzou photography area, with a flight altitude of about 4100m and a flight speed of about 270km / hr. 11: At 20-12:25, he worked in the Biandu mouth photography area, with a flight altitude of about 4200m and a flight speed of about 290km / hr.\n
\nThe original data is divided into two parts: microwave radiometer data and GPS data. The L and K bands of microwave radiometer are non imaging observations. The digital values obtained from instantaneous observations are recorded by text files, and the longitude and latitude during flight and aircraft attitude parameters are recorded by GPS data.\n
\nWhen using microwave radiometer observation data, it is necessary to convert the recorded digital value into bright temperature value according to the calibration coefficient (the calibration coefficient file is archived with the original observation data). At the same time, through the respective clock records of microwave radiometer and GPS, microwave observation can be connected with GPS record to match geographic coordinate information for microwave observation. Due to the coarse observation resolution of microwave radiometer, the yaw, roll and pitch effects of aircraft are generally ignored in data processing.\n
\nAccording to the use target and flight relative altitude (H), after calibration and coordinate matching, the observation information can also be rasterized. The resolution (x) of L and K bands can be considered consistent with the observation footprint. The reference resolution is: L band, x = 0.3H; K-band, x = 0.24h. After the above steps, the products that users can use directly can be obtained.
", "ds_time_res": "分、日、次", "ds_acq_place": "Heihe River Basin", "ds_space_res": "", "ds_projection": "", "ds_process_way": "When using microwave radiometer observation data, it is necessary to convert the recorded digital value into bright temperature value according to the calibration coefficient (the calibration coefficient file is archived with the original observation data). At the same time, through the respective clock records of microwave radiometer and GPS, microwave observation can be connected with GPS record to match geographic coordinate information for microwave observation.", "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": [ "微波辐射计", "机载", "地面遥感" ], "ds_subject_tags": [], "ds_class_tags": [], "ds_locus_tags": [ "黑河流域", "上游寒区水文试验区", "阿柔加密观测区", "扁都口加密观测区" ], "ds_time_tags": [ 2008 ], "ds_contributors": [ { "true_name": "王树果", "email": "sgwang@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": "王旭峰", "email": "wangxufeng@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" }, { "true_name": "肖青", "email": "xiaoqing@irsa.ac.cn", "work_for": "中国科学院遥感与数字地球研究所", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "王树果", "email": "sgwang@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" }, { "true_name": "王旭峰", "email": "wangxufeng@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": "肖青", "email": "xiaoqing@irsa.ac.cn", "work_for": "中国科学院遥感与数字地球研究所", "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" }