LeConte Bay CHIRP Subsurface Data

<strong>CHIRP subsurface seismic data</strong><br> These data are raw .sgy and .xys files of CHIRP subsurface data collected from LeConte Bay, AK in September 2017. More than 45 km of sub-bottom sonar profiles were acquired across- and along-fjord using an Edgetech 3100 CHIRP profiler. Energetics of the fjord were weak and minimal noise was introduced by surface gravity waves. Parabolic artifacts from the steep fjord walls were manifest in the water column and were not removed. Parabolic features observed subsurface typically represented artifacts created by surfaces of greater density. A .nc (netcdf) file of aggregated xy location data and other metadata is also included for ease in viewing data extents. Reference and more details: Eidam, E.F., Sutherland, D.A., Duncan, D., Kienholz, C., Amundson, J.M., Motyka, R.J. Morainal bank evolution and impact on terminus dynamics during a tidewater glacier stillstand. In revision for JGR-Earth Surface, August 2020.CHIRP地下地震数据集（CHIRP subsurface seismic data） 本数据集包含2017年9月于美国阿拉斯加州勒孔特湾（LeConte Bay, AK）采集的原始CHIRP地下地震数据，文件格式为.sgy与.xys。研究团队采用Edgetech 3100型CHIRP剖面仪，沿峡湾及横切峡湾方向采集了总长超45千米的海底声呐剖面数据。该峡湾水体能量较弱，仅由表面重力波引入极少量噪声。陡峭峡湾侧壁产生的抛物形伪影会出现在水体层中，且未被去除。地下观测到的抛物形特征通常由密度更高的界面所产生的伪影构成。为便于查看数据覆盖范围，本数据集还附带一份整合了xy位置数据与其他元数据的.nc（netCDF）文件。 参考文献及更多详细信息：Eidam, E.F.、Sutherland, D.A.、Duncan, D.、Kienholz, C.、Amundson, J.M.、Motyka, R.J.，《潮汐冰川静止期冰碛岸演化对终端动力学的影响》，已提交《JGR-Earth Surface》期刊修订，2020年8月。