Airborne Electromagnetic Data Acquired at Kaweah Subbasin in the Central Valley of California, U.S.A.
- Kaweah Subbasin in the Central Valley of California is one of the over-drafted water basins. Over-pumping of groundwater resources due to the latest droughts and the high level of water demand to support agricultural activities threatens the water security of the region. Developing management practices to use groundwater resources in a sustainable way is urgent and important. However, without seeing under the ground where groundwater is stored and flows, it is not possible to pursue sustainable groundwater management. Traditionally, well-based approaches have been used for this imaging purpose. While these approaches provide accurate point information about hydrogeology of the subsurface, low spatial density and coverage of the wells result in a large data gap between the wells. Therefore, a new approach is needed to fill in this data gap for mapping out hydrogeology of the subsurface with high spatial density and coverage. This was the motivation of the acquisition of the AEM data covering Kaweah Subbasin. For this AEM experiment, SkyTEM 312 system was used; a total of 800 line-km AEM data was obtained. Acquired AEM data were processed by Aqua Geo Framework. Noisy data due to man-made noise sources (e.g., powerlines) were first omitted, then standard processing schemes (e.g., stacking, harmonic noise reduction, trapezoidal filtering) were applied using Aarhus Workbench Software. Provided AEM data in this repository are the processed AEM data, which is ready to be inverted to recover a resistivity distribution of the subsurface.
|Type of resource
|November 9, 2019 - November 12, 2019
|March 16, 2022; December 5, 2022
|March 15, 2022; October 20, 2021
|Research team head
|Q/C & Processing - Aqua Geo Frameworks LLc
|Data Acquisition - SkyTEM Ltd.
- Use and reproduction
- User agrees that, where applicable, content will not be used to identify or to otherwise infringe the privacy or confidentiality rights of individuals. Content distributed via the Stanford Digital Repository may be subject to additional license and use restrictions applied by the depositor.
- This work is licensed under a Creative Commons Attribution 4.0 International license (CC BY).
- Preferred citation
- Knight, R. and KANG, S. (2022). Airborne Electromagnetic Data Acquired at Kaweah Subbasin in the Central Valley of California, U.S.A.. Stanford Digital Repository. Available at https://purl.stanford.edu/yc041mz9691
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