青藏高原黑海浅层地震剖面野外实测与能量比法解译数据集

作者2011年在青藏高原北部的黑海（35.9859&degN，93.2638&degE）上，使用GeoPulse3.5kHz浅地层剖面系统采集了浅地层地震剖面数据；在野外采集原始数据基础上，采用优化变长滑动时窗能量比法，采用均值曲线法提取地层小边界点，最后进行边界点的连续性检验，通过Matlab编程实现浅地层地震剖面的自动解译，并获得青藏高原黑海浅层地震剖面野外实测与能量比法解译数据集。经过一系列实验与实测对比分析得到，当变长滑动时窗的取值范围在2-20之间，且均值曲线峰值提取窗口取值在70~80之间时，黑海剖面数据的自动解译与人工解译得到的地层界线吻合度大于0.65，提取的边界点在界线附近的密集度大于0.8。青藏高原黑海浅层地震剖面野外实测与能量比法解译数据集包括青藏高原黑海地理位置地理信息系统数据、该点位浅地层地震剖面的2011年实测数据和能量比法解译数据。其中，野外实测包括3sn、4ns、4we三个剖面的数据。这三个剖面的数据分别为3001道、1918道和8001道，每道由1664个样点的数据组成（.txt）。能量比法解译数据包括：黑海3sn剖面地层线数据；单道地震剖面数据和19列能量比值数据；参数化方案（Lmin-Lmax/Lwin）及提取的边界点数量；Lmin-Lmax取值方案下，不同Lwin的提取效果；黑海单道地震剖面数据与西洋单道地震剖面数据。数据集存储为.kmz, .shp, .txt和.xlsx格式，压缩后数据量为27.7MB。该数据集的分析研究成果发表在《地球物理学进展》2015年30卷第3期。

In 2011, the authors acquired sub-bottom seismic profile data using a GeoPulse 3.5 kHz sub-bottom profiler system at Black Lake (35.9859°N, 93.2638°E) in the northern Qinghai-Tibet Plateau. Based on the raw field-collected data, the optimized variable-length sliding window energy ratio method and mean curve method were utilized to extract small stratigraphic boundary points, followed by continuity validation of these boundary points. Automatic interpretation of the sub-bottom seismic profiles was implemented via Matlab programming, and the field-measured and energy ratio method-interpreted datasets of the shallow seismic profiles from Black Lake in the Qinghai-Tibet Plateau were obtained.

Following a series of experiments and comparative analyses between automated and field-measured results, it was found that when the value range of the variable-length sliding window is 2–20 and the peak extraction window of the mean curve is 70–80, the degree of coincidence between the stratigraphic boundaries obtained by automatic interpretation and manual interpretation of the Black Lake profile data exceeds 0.65, and the density of the extracted boundary points near the boundaries is greater than 0.8.

The field-measured and energy ratio method-interpreted datasets of the shallow seismic profiles from Black Lake in the Qinghai-Tibet Plateau include GIS data of the lake's location, 2011 field-measured sub-bottom seismic profile data collected at this site, and energy ratio method-interpreted data. Specifically, the field-measured data cover three profiles: 3sn, 4ns, and 4we. The data volumes of these three profiles are 3001 traces, 1918 traces, and 8001 traces respectively, with each trace consisting of 1664 sample points stored in .txt format.

The energy ratio method-interpreted data include: stratigraphic line data of the 3sn profile from Black Lake; single-channel seismic profile data and 19-column energy ratio data; parameterization scheme (Lmin-Lmax/Lwin) and the number of extracted boundary points; extraction performance of different Lwin under the Lmin-Lmax value scheme; single-channel seismic profile data of Black Lake and single-channel seismic profile data of Xiyang.

The dataset is stored in .kmz, .shp, .txt, and .xlsx formats, with a compressed size of 27.7 MB. The analytical and research findings of this dataset were published in *Progress in Geophysics*, Volume 30, Issue 3, 2015.

搜集汇总

背景与挑战

背景概述

该数据集基于2011年在青藏高原黑海湖采集的浅层地震剖面实地数据，采用平均曲线法和优化的变长滑动时间窗口能量比技术开发，包含地理位置、现场测量数据（覆盖三个剖面，共12,920个样本）以及能量比分析表，数据格式多样（如.kmz、.shp等），压缩大小为27.7MB，相关研究已发表于《地球物理进展》期刊。