Nebraska Airborne Electromagnetics

This website is your source for Nebraska geophysics data in 3D. Here you can download airborne electromagnetic (AEM) data, access interactive mapping applications, review guidelines for modelers, and learn from video tutorials.

AEM Surveys GIS Web Services GeoCloud Learn Publications For Modelers

AEM Surveys

Airborne Electromagnetic (AEM) surveys have been conducted by many of Nebraska’s Natural Resources Districts to map and characterize groundwater supplies. Here you can view the results in 3D or download hydrogeologic reports and other data related to the surveys.

Natural Resource Districts (NRD)	Survey year & System	View Resistivity models in 3D	Download Reports and Data
Lewis and Clark NRD	2016 SkyTEM 304M	3D Web App	Go to Downloads Page
Lewis and Clark NRD	2018 SkyTEM 312 & 304M	3D Web App	Go to Downloads Page
Middle Republican NRD	2020 SkyTEM 304M	3D Web App	Go to Downloads Page
	2022 SkyTEM 304M	3D Web App	Go to Downloads Page
	2023 SkyTEM 304M	3D Web App	Go to Downloads Page

This table is in progress. Additional AEM surveys will be added throughout 2024.

GIS Web Services

ArcGIS Server web scene layers are for 3D scenes in ArcGIS Pro. You can view this 3D content by copying and pasting a scene layer URL into your desktop GIS program.

Download Web Services Document

GeoCloud

GeoCloud is an external website for interactive mapping, custom profiles, and data access for AEM, CSD test holes, wells, and related geological models of Nebraska. Access is free, but a user account is required.

Request Access Go to Geocloud Learning Center

Learn

Learn about AEM and our 3D applications in these short videos.

This video briefly explains the airborne electromagnetic (AEM) method. It also explains how the results of AEM surveys are displayed in the 3D Web App found on this website.

Listen to an interview of Jared Abraham (AGF) and Jesse Korus (UNL) on Airborne Electromagnetic surveys, courtesy of Nebraska ON TAP.

Publications

CSD geologists conduct research on Nebraska geology using 3D models and AEM surveys.

Kawo, N.S., Korus, J.T., Gulbrandsen, M.L. 2023. Multiple-point statistical modeling of three-dimensional glacial aquifer heterogeneity for improved groundwater management. Hydrogeology Journal https://- doi.org/10.1007/s10040-023-02658-x Online	Download
Tilahun, T.A., Korus, J.T., 2023. 3D hydrostratigraphic and hydraulic conductivity modeling using supervised machine learning. Applied Computing and Geosciences 19, 100122: https://doi.org/10.1016/j.acags.2023.100122.	Download
Korus, J.T., Joeckel, R.M., Abraham, J.A., Höyer, A.S., Jörgensen, F., 2021. Reconstruction of pre-Illinoian ice margins and glaciotectonic structures from Airborne ElectroMagnetic (AEM) surveys at the western limit of Laurentide glaciation, Midcontinent U.S.A. Quaternary Science Advances 4, 100026. https://doi.org/10.1016/j.qsa.2021.100026	Download
Korus, J.T., 2018. Combining hydraulic head analysis with airborne electromagnetics to detect and map impermeable aquifer boundaries. Water 10(8): 975. https://doi.org/10.3390/w10080975	Download
Korus, J.T., Joeckel, R.M., Divine, D.P., Abraham, J., 2017. 3-D architecture and hydrostratigraphy of cross-cutting buried valleys using airborne electromagnetics, glaciated Central Lowlands, Nebraska, U.S.A. Sedimentology 64: 553-581. https://doi.org/10.1111/sed.12314	Download
Korus, J.T., Joeckel, R.M., Divine, D.P., 2013. Three-dimensional hydrostratigraphy of the Firth, Nebraska area: Results from Helicopter Electromagnetic (HEM) mapping in the Eastern Nebraska Water Resources Assessment (ENWRA). Geological Survey Bulletin 3 (new series), Conservation and Survey Division, School of Natural Resources, University of Nebraska-Lincoln, 100 p.	Download
Divine, D.P., Korus, J.T., 2013. Three-dimensional hydrostratigraphy of the Swedeburg, Nebraska area: Results from Helicopter Electromagnetic (HEM) mapping in the Eastern Nebraska Water Resources Assessment (ENWRA). Geological Survey Bulletin 5 (new series), Conservation and Survey Division, School of Natural Resources, University of Nebraska-Lincoln, 31 p.	Download
Hanson, P.R., Korus, J.T., Divine, D.P., 2012. Three-dimensional hydrostratigraphy of the Platte River Valley near Ashland, Nebraska: Results from Helicopter Electromagnetic (HEM) mapping in the Eastern Nebraska Water Resources Assessment (ENWRA). Geological Survey Bulletin 2 (new series), Conservation and Survey Division, School of Natural Resources, University of Nebraska-Lincoln, 51 p.	Download
Divine, D.P., Korus, J.T., 2012. Three-dimensional hydrostratigraphy of the Sprague, Nebraska area: Results from Helicopter Electromagnetic (HEM) mapping in the Eastern Nebraska Water Resources Assessment (ENWRA). Geological Survey Bulletin 4 (new series), Conservation and Survey Division, School of Natural Resources, University of Nebraska-Lincoln, 32 p.	Download

For Modelers

Modelers wishing to contribute data or models to GeoCloud should review our guidelines for AEM surveys, data integration, and hydrostratigraphic modeling in Nebraska. They may also want to use tools for integrating 3D models into MODFLOW or other modeling programs.

Guidelines for Airborne Electromagnetic (AEM) Surveys, Data Integration, and Hydrostratigraphic Modeling in Nebraska

Guidelines for Airborne Electromagnetic (AEM) Surveys, Data Integration, and Hydrostratigraphic Modeling in Nebraska	Download
Appendix A: Guidlines and Standards for SkyTEM Measurements, Processing and Inversion	Download
Appendix B: Guide for processing and inversion of SkyTEM data in the Aarhus Workbench	Download

Standards for Data and Model Reporting in the Nebraska GeoCloud

Standards for Data and Model Reporting in the Nebraska GeoCloud	Download
Project Document Template	Download
AEM Metadata Standards	Download
2D-Grid Metadata Standards	Download
3D-Grid Metadata Standards	Download
Boreholes Metadata Standards	Download
Point Data Metadata Standards	Download
Geophysical Logs Metadata Standards	Download
Shapefile Metadata Standards	Download