SnowEx20 Grand Mesa IOP BSU Multi-polarization 1 GHz GPR CMP Raw, Version 1

This data set was collected during the SnowEx 2020 Intensive Observation Period (IOP) in Grand Mesa, Colorado. These data contain the geolocated, unprocessed, common midpoint (CMP) gathers from a Sensors & Software pulseEKKO PRO 1 GHz multi-polarization ground penetrating radar (GPR). Multi-offset gathers were collected by placing antennas on the snow surface and expanding the antenna separation about a fixed midpoint out to a 2 m offset. CMP gathers were collected in HH and HV polarizations. Data were collected at three locations around Grand Mesa IOP snow pits 2N12 and 1S8 (see DOI: 10.5067/DUD2VZEVBJ7S for more details on Grand Mesa IOP snow pits). Data at snow pit 2N12 were acquired on the groomed snowmobile road (CMP1), in the fresh snow behind the snow pit wall (CMP2), and in the right rut of the SUSV track (CMP3). Data at snow pit 1S8were acquired in the right rut of the SUSV track (CMP1), in the left rut of the SUSV track (CMP2), and in the fresh snow behind the snow pit wall (CMP3). These data can be used to estimate snow depth, snow density, and snow water equivalent (SWE).本数据集采集于美国科罗拉多州格兰德梅萨（Grand Mesa）2020年雪冰实验（SnowEx）密集观测期（Intensive Observation Period, IOP）。该数据集包含经地理定位的未处理公共中点（Common Midpoint, CMP）道集数据，采集自Sensors & Software公司的pulseEKKO PRO 1 GHz多极化探地雷达（Ground Penetrating Radar, GPR）。多偏移距道集的采集方式为：将天线放置于雪面，以固定中点为基准扩展天线间距至2米偏移量，数据采集采用HH与HV两种极化模式。 数据采集于格兰德梅萨密集观测期的两处雪坑2N12与1S8周边的三个点位（关于格兰德梅萨密集观测期雪坑的更多详情，请参阅DOI: 10.5067/DUD2VZEVBJ7S）。其中，雪坑2N12点位的数据分别采集于整修后的雪地摩托道路（CMP1）、雪坑壁后方的新雪区域（CMP2）以及SUSV履带的右侧车辙处（CMP3）；雪坑1S8点位的数据分别采集于SUSV履带的右侧车辙处（CMP1）、左侧车辙处（CMP2）以及雪坑壁后方的新雪区域（CMP3）。 本数据集可用于估算雪深、雪密度与雪水当量（Snow Water Equivalent, SWE）。