Raw Ground Penetrating Radar Data, Valdez Glacier, Alaska; 2013

Common-offset GPR surveys were conducted with a Sensors and Software 500-MHz Pulse Ekko Pro system. We collected data from the ground, towed behind a researcher on skis or snowmobile, and from the air, strapped underneath a helicopter. All of the profiles are linked to coincident GPS observations. Coincident in-situ data is provided for calibration, and may be composed of any of the following: snow pits and/or snow-pit/snow-core combinations, probe profiles, and ablation stakes. This supplemental information may be used to calibrate velocity for conversion from time domain to depth domain. This supplemental information is provided as is, with additional information specific to usage included within the in-situ folder.

本数据集采用Sensors and Software公司500MHz脉冲Ekko Pro系统开展共偏移距探地雷达（Ground Penetrating Radar, GPR）探测工作。数据采集方式包括地面采集（由研究人员脚踏滑雪板或乘坐雪地摩托拖拽设备完成）以及航空采集（将设备搭载于直升机下方完成）。所有测线剖面均与同步全球定位系统（GPS）观测数据完成关联匹配。本数据集附带同步原位实测数据用于参数标定，此类数据可涵盖以下任意类型：雪坑、雪坑-雪芯组合样品、探杆剖面以及消融桩。该辅助数据可用于标定电磁波传播速度，以实现从时域到深度域的数据转换。本辅助数据按原始状态提供，其使用相关的详细说明已收录于原位数据文件夹中。