Doro Kennedy O, Deng Elijah Achuoth, Bank Carl-Georg
Department of Environmental Sciences, University of Toledo, 2801 West Bancroft Street, Toledo, Ohio, 43606-3390, USA.
Department of Earth Sciences, University of Toronto, 22 Russell Street, Toronto, Ontario M5S3B1, Canada.
Data Brief. 2020 Jul 21;31:106050. doi: 10.1016/j.dib.2020.106050. eCollection 2020 Aug.
Magnetic survey using multiple magnetometers to obtain gradiometric data can be used as a non-destructive method to search for buried firearms. We present magnetic dataset collected above a set of weapons buried at 0.6 m, 1.2 m, and 1.8 m depths. We provide three datafiles: two datafiles were collected on a coarse grid (1 m by 0.5 m) before and after burial of the weapons, and a third one collected on a fine grid (0.25 m by 0.1 m) after the burial of the weapons which concentrates on the area of buried firearms. We used a Gem Systems GSM-19GW Overhauser gradiometer consisting of two sensors with a relative vertical separation of 55 cm. Data acquisition was done via non-automated point measurements within a gridded measurement domain with data collection locations managed using measurement tape. Each field campaign resulted in about 3,000 data points. In addition, we developed a set of MATLAB scripts to model the magnetic anomalies (total field and gradient) for buried firearms, this set is also included here. The data and modeling scripts relate to a research article published in Forensic Science International (Deng et al., Suitability of magnetometry to detect clandestine buried firearms from a controlled field site and numerical modeling [1]). The dataset may be helpful for testing new algorithms for weapons detection while the numerical codes can be modified and applied for simulating magnetic anomalies resulting from similar buried objects with potential application in the sub-disciplines of forensic and archaeological geophysics.
使用多个磁力仪进行磁测以获取梯度数据，可作为一种无损方法来搜寻埋藏的枪支。我们展示了在一组分别埋于0.6米、1.2米和1.8米深度的武器上方收集的磁数据集。我们提供了三个数据文件：两个数据文件是在武器埋藏前后在粗网格（1米×0.5米）上收集的，第三个数据文件是在武器埋藏后在细网格（0.25米×0.1米）上收集的，该细网格集中在埋藏枪支的区域。我们使用了一台Gem Systems GSM - 19GW奥弗豪泽梯度仪，它由两个相对垂直间距为55厘米的传感器组成。数据采集是通过在网格化测量区域内进行非自动化的逐点测量完成的，数据收集位置使用测量带进行管理。每次野外测量大约产生3000个数据点。此外，我们开发了一组MATLAB脚本，用于对埋藏枪支的磁异常（总场和梯度）进行建模，这组脚本也包含在此处。这些数据和建模脚本与发表在《法医学国际》上的一篇研究文章相关（邓等人，磁测法从受控现场探测秘密埋藏枪支的适用性及数值模拟[1]）。该数据集可能有助于测试用于武器探测的新算法，而数值代码可以修改并应用于模拟由类似埋藏物体产生的磁异常，在法医和考古地球物理学子学科中有潜在应用。
