Arctic lake transient electromagnetic (TEM) soundings 2016-2017

This dataset contains transient electromagnetic (TEM) geophysical soundings acquired on Arctic lakes during spring fieldwork 2016 - 2017. Several additional TEM soundings are included acquired on terrestrial permafrost near lakes (for control) or historic boreholes (for validation). Measurements were made using an ABEM WalkTEM with a 1600m^2 transmitter loop, a 200m^2 receiver loop, and a 5m^2 receiver loop, all in a center-nested configuration. Raw data for 86 soundings are provided in the Universal Sounding Format (USF), and results after processing (smooth constraint) with ViewTEM (GuidelineGeo/ABEM/Aarhus Hydrogeopyhsics) inversion software are included as tabular geolocated values. A KML indicating point location of the center of each sounding is also provided.

本数据集包含2016-2017年春季北极湖泊野外作业中采集的瞬变电磁（Transient Electromagnetic, TEM）地球物理测深数据。此外还纳入了采集自湖泊周边陆地永久冻土（用于对照）或历史钻孔（用于验证）的额外TEM测深数据。本次测量采用ABEM WalkTEM设备完成，配套1600平方米发射线圈、200平方米接收线圈以及5平方米接收线圈，所有线圈均采用中心嵌套布局。86组测深数据的原始数据以通用测深格式（Universal Sounding Format, USF）提供；经ViewTEM（GuidelineGeo/ABEM/Aarhus Hydrogeophysics）反演软件以平滑约束算法处理后的结果，以带地理定位的表格化数值形式一并提供。此外还提供了一份KML文件，用于标注每一组测深中心点的位置。