AEM Data Viewers
Overview of Tools
The AEM 3D Viewer and AEM Profile Viewer are innovative tools that allows GSAs and stakeholders to view AEM datasets online. The GIS-based tools allow datasets can be viewed in a three-dimensional space and allows the user to interact with the data by zooming in and viewing the data from various angles. The tools can be accessed on a computer or mobile phone and does not require data to be downloaded or the use of specialized software.
AEM Electrical Resistivity
AEM electrical resistivity data shows the distribution of electrical resistivity values within the aquifer, where electrical resistivity describes a material's ability to resist an electric current. Generally, materials with higher electrical resistivity values correspond to coarse-grain dominated materials, like sands and gravels. Generally, materials with lower electrical resistivity values correspond to fine-grain dominated materials, like silts and clays, or materials saturated with fluids that have a high concentration of total dissolved solids, like brine or seawater.
AEM Texture Data
AEM electrical resistivity data are interpreted for sediment texture, described as coarse fraction. The interpretation is supported by incorporating existing lithology and geophysical logging data into the transform. (AEM Texture Data to be added to the AEM 3D Viewer soon!)
AEM 3D Viewer (Beta)
The AEM 3D Viewer shows AEM electrical resistivity values displayed as voxels. The voxel space can be navigated using the navigation widgets. Depth and profile slices can be created using the slice widget.
The map insert in the right pane shows the average electrical resistivity values in the shallow subsurface (0-17 m). Zoom into the map to show survey line segments and locations of high-quality lithology and geophysical logs. Click on the survey line segments to show pop-ups of segment profile images. Click on the profile image in the popup to open the profile in a new window.
Link to full screen AEM 3D Viewer (computer only): https://dwr.maps.arcgis.com/apps/instant/3dviewer/index.html?appid=f781b14f42ab45e5b72f32cf07af899c
AEM Profile Viewer
The AEM Profile Viewer allows the user to click on profile line segments and show the electrical resistivity profile images in the panel on the right. The Map Insert shows the average electrical resistivity values in the shallow subsurface (0-17 m), the location of survey line segments, and locations of high-quality lithology and geophysical logs. Click on the survey line segments to show the profile images.
Link to full screen AEM Profile Viewer: https://dwr.maps.arcgis.com/apps/instant/attachmentviewer/index.html?appid=65f0aa6db8124aeda54e1f33c5dfe66c
Limitations
Data are provisional. Data Viewers are under development.
AEM Data Interpretation Disclaimer: The AEM Data Viewer shows lithology interpretations based on available existing supporting data and are designed for informational purposes only. These resources are not intended for regulatory purposes as part of the Sustainable Groundwater Management Act. The Department of Water Resources makes no warranties, representations or guarantees, either expressed or implied, as to the accuracy, completeness, correctness, or timeliness of the information that is presented in the lithology transform and lithology interpretations provided in this report, nor accepts or assumes any liability arising from use of this report or underlying data.
Additional Information
Field | Value |
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Last updated | April 26, 2022 |
Created | April 26, 2022 |
Format | unknown |
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