Raw Total Magnetic Intensity (TMI) data, Moiyabana Area, Eastern Botswana, 22S-23S (2017, investigator Estella Atekwana)

IGRF-corrected Raw Total Magnetic Intensity (TMI) data for the Moiyabana area of Eastern Botswana between 22.2S-23.2S and 24.6E-25.9E. This data is from an airborne magnetic survey and is a subset of a larger country-wide aeromagnetic data set acquired by the Department of Geological Survey of Botswana (now Botswana Geoscience Institute (BGI). The data was gridded at 50 m cell size using a minimum curvature algorithm. The data set is cited in Kolawole et al. (2017) in which it was used as part of the project called "Aeromagnetic, gravity, and Differential Interferometric Synthetic Aperture Radar (DInSAR) analyses reveal the causative fault of the April 3, 2017 Mw 6.5 Moiyabana, Botswana Earthquake". The data files are in ASCII format and were generated as part of the project called Integrated studies of early stages of continental extension: From incipient (Okavango) to young (Malawi) rifts. Funding was provided by NSF award EAR10-09988. This data is released to the public as part of an ongoing collaboration between the BGI and Botswana International University of Science and Technology (BIUST). BGI authorized BIUST to share the geophysical data with other researchers for the purposes of research in Botswana. The Government of Botswana has to be acknowledged as the source of the data, and all research findings have to be shared with BGI. Detailed information on the acquisition parameters for this data (e.g. magnetometer sensor used, acquisition dates, line spacing and orientation, tie-line spacing and orientation, flight height etc.) can be obtained from the Department of Geological Survey of Botswana.

国际地磁参考场（International Geomagnetic Reference Field, IGRF）校正后的原始总磁场强度（Total Magnetic Intensity, TMI）数据，覆盖博茨瓦纳东部莫亚巴纳区域，范围为南纬22.2°至23.2°、东经24.6°至25.9°。该数据源自航空磁测，是博茨瓦纳地质调查局（现更名为博茨瓦纳地球科学研究所，Botswana Geoscience Institute, BGI）采集的全国范围航空磁测数据集的子集。该数据采用最小曲率算法，以50米的单元格尺寸进行网格化处理。该数据集被Kolawole等人（2017年）引用，在题为《航空磁测、重力测量与差分合成孔径雷达干涉测量（Differential Interferometric Synthetic Aperture Radar, DInSAR）分析揭示2017年4月3日博茨瓦纳莫亚巴纳Mw6.5级地震的发震断层》的研究项目中被使用。数据文件采用ASCII格式，生成自题为《大陆伸展早期阶段综合研究：从初期（奥卡万戈）到年轻（马拉维）裂谷》的科研项目。该研究由美国国家科学基金会（National Science Foundation, NSF）资助项目EAR10-09988提供经费支持。本数据集由博茨瓦纳地球科学研究所（BGI）与博茨瓦纳国际科技大学（Botswana International University of Science and Technology, BIUST）的持续合作项目公开发布。BGI授权BIUST可将该地球物理数据分享给其他在博茨瓦纳开展研究的科研人员。需注明博茨瓦纳政府为数据来源方，且所有基于该数据的研究成果须共享给BGI。有关该数据采集参数的详细信息（例如所用磁敏传感器、采集日期、测线间距与走向、联络线间距与走向、飞行高度等）可向博茨瓦纳地质调查局咨询获取。