Supporting Data: Characterizing Sub-Glacial Hydrology Using Radar Simulations
收藏资源简介:
Raw data from "A Simulation Approach to Characterizing Sub-Glacial Hydrology". THW2_UBH0c_X243a.M1D1 is the 1 dimensionally focused, high gain radargram from the IPR radar survey. Actual along-track IPR pick data for THW2_UBH0c_X243a are contained in file X243a_rad_data_foc.csv. Metadata are as follows: pst: flight line name long: observation longitude in decimal degrees (EPSG:4326) lat: observation latitude in decimal degrees (EPSG:4326) bed: bed pick elevation in [m] year: timestamp year day: timestamp day t_ms: timestamp miliseconds srf: surface pick elevation in [m] echo: bed echo strength [dB] thk: ice thickness [m] Lice: estimated 2-way attenuation loss [dB] R_bed: bed absolute reflectivity [dB] L_unc: 2-way attenuation loss uncertainty [dB] Simulated data: A folder for each simulation contains the files listed below. Inputs: [INPUT] Trajectory_MRS.mat: values for simulated aircraft trajectory, including total # of rangelines (TrackLengthTot), aircraft position at each rangeline in [m] (sc_position_x, sc_position_y, sc_position_z), and aircraft velocity in [m/s] (sc_vel_x, sc_vel_y, sc_vel_z) bed.csv: lists all z-values in [m] for the bed surface chan.csv: lists all z-values in [m] for the channel surface params.txt: lists all pertinent parameters from the simulation surf.csv: lists all z-values in [m] for the ice surface xx.csv: lists all x-values in [m] for the ice surface xx_b.csv: lists all x-values in [m] for the bed and channel surface yy.csv: lists all y-values in [m] for the ice surface yy_b.csv: lists all y-values in [m] for the bed and channel surface Radargrams: RgramFocPWR_RM3_hamm.mat: Focused radargram power [dB] RgramRawPWR.mat: Raw radargram power [dB] RgramRCPWR.mat: Range-compressed radargram power [dB]
本数据集的原始数据源自《用于表征冰下水文的模拟方法》(A Simulation Approach to Characterizing Sub-Glacial Hydrology)。 THW2_UBH0c_X243a.M1D1 为IPR雷达勘测中一维聚焦型高增益冰雷达剖面图(radargram)。 THW2_UBH0c_X243a 的沿航迹IPR拾取实测数据存储于文件X243a_rad_data_foc.csv中。元数据说明如下: - pst:飞行航线名称 - long:观测点经度,采用十进制度格式(EPSG:4326坐标系) - lat:观测点纬度,采用十进制度格式(EPSG:4326坐标系) - bed:冰下基岩拾取点高程,单位:米(m) - year:时间戳年份 - day:时间戳日序数 - t_ms:时间戳毫秒数 - srf:冰面拾取点高程,单位:米(m) - echo:基岩回波强度,单位:分贝(dB) - thk:冰盖厚度,单位:米(m) - Lice:估算的双向衰减损耗,单位:分贝(dB) - R_bed:基岩绝对反射率,单位:分贝(dB) - L_unc:双向衰减损耗的不确定度,单位:分贝(dB) 模拟数据:每个模拟任务对应专属文件夹,内含以下文件: 输入文件: - [INPUT] Trajectory_MRS.mat:模拟飞机航迹参数文件,包含测距线总数量(TrackLengthTot)、每条测距线对应的飞机位置(单位:米,字段为sc_position_x、sc_position_y、sc_position_z)以及飞机速度(单位:米/秒,字段为sc_vel_x、sc_vel_y、sc_vel_z) - bed.csv:存储基岩表面所有z轴坐标值的文件,单位:米(m) - chan.csv:存储冰下河道表面所有z轴坐标值的文件,单位:米(m) - params.txt:存储本次模拟所有相关参数的文本文件 - surf.csv:存储冰面所有z轴坐标值的文件,单位:米(m) - xx.csv:存储冰面所有x轴坐标值的文件,单位:米(m) - xx_b.csv:存储基岩与河道表面所有x轴坐标值的文件,单位:米(m) - yy.csv:存储冰面所有y轴坐标值的文件,单位:米(m) - yy_b.csv:存储基岩与河道表面所有y轴坐标值的文件,单位:米(m) 雷达剖面图功率数据文件: - RgramFocPWR_RM3_hamm.mat:聚焦型冰雷达剖面图功率数据,单位:分贝(dB) - RgramRawPWR.mat:原始冰雷达剖面图功率数据,单位:分贝(dB) - RgramRCPWR.mat:距离压缩型冰雷达剖面图功率数据,单位:分贝(dB)



