Our case stories

Supporting safe foundation design using Electrical Resistivity Tomography (ERT)

Finding Groundwater for a Durian Orchard using Transient Electromagnetic (TEM)

Drone-based Ground Penetrating Radar (GPR) enabled a time-efficient and repeatable mapping of peat soil thickness and biogenic gas production

Hidden underground graves detected with advanced GPR methods.

The generation and transport of AMD (Acid Mine Drainage) was effectively outlined with a combination of electrical resistivity tomography (ERT) and induced polarization (IP) measurements.

The survey results were consistent with the previous knowledge of the sites' geology and therefore concluded a presence of salt deposits.

TerraLog Services provides geophysical services and contracting focused on the exploration of coal, iron, nickel, gold and other minerals

The site of an old dry cleaner facility was investigated to map the spread of tetrachloroethylene, a highly carcinogenic solvent used in dry cleaning, in Kristianstad, Sweden.

The Carnuntum ruins are part of a city of 50,000 people, 28 miles (45 kilometers) east of Vienna that flourished about 1,700 years ago, a major military and trade outpost linking the far-flung Roman empire’s Asian boundaries to its central and northern European lands.

Due to the increased traffic intensity on the E22 highway and limited possibilities to broaden the road, a new solution needed to be drawn up to ensure the flow, safety, and environmental concerns.

With the help of GPR, ICE is exploring the subsurface without impacting the environment or damaging archaeological pieces.

A historic agreement was reached between the three Christian communities the historic Guardians of the Holy Sepulchre, a rehabilitation project of the Holy Aedicule of the Holy Sepulchre was implemented, including the subsurface mapping of the environment in its vicinity.

Geophysical surveys on King George Island aimed to assess permafrost depth and detect melt zones, as warming temperatures threaten the stability of Antarctic base foundations anchored in permafrost.

GPR was used on Iceland’s Vatnajökull glacier to study the 2011 ash layer and track water dynamics in cauldrons like Skaftárkatlar, linked to glacial floods (jökulhlaups

Why is it important to scan the subsurface for underground utilities before starting a construction project? This large medical university, as well as Florida-based power company knows that “As Builts” doesn’t always reveal all utilities hidden underneath

Hidden underground utitlies can be detected with advanced GPR methods before excavations. What does the collected data tell you?

The Netherlands’ low-lying landscape causes saline groundwater, with freshwater from IJsselmeer slowly seeping into nearby polders through natural leakage from surrounding higher areas.

Cofadena, an important client in Bolivia, procured the ABEM Terramenter LS, which met their requirements. To date more than 180 tomographic lines and more than 120 wells have been drilled with abundant water.

The MALÅ MIRA system from Guideline Geo has been used successfully at several different locations around Italy, to map different types of underground utilities and infrastructure.

MALÅ GPR instrument is used to map the depth to bedrock in an efficient way. Knowledge of the underground conditions is essential.

See how GPR technique is used to examine the ground. Bedrock mapping and possible ground water withdrawal investigations.

The project was initiated and coordinated by Guideline Geo’s distributor in the region and the results show the ability of the TEM (Transient Electromagnetic) method to map the depth to a subsurface bedrock interface.

In 2017, the Dutch consulting company Wiertsema & Partners did a groundwater-mapping project for the water supply company, Vitens.

Authorities as well as commercial enterprises and individuals are initiating investigations in order to find and protect both national and local groundwater resources.

For Dutch water company PWN, consultants mapped groundwater near the North Sea using data from a 2013 airborne SkyTEM survey. The goal was to enhance understanding of subsurface water systems in the coastal region.

The project was initiated and coordinated by Guideline Geo’s distributor in the region and the purpose was to show the ability of the TEM (Transient ElectroMagnetic) method to map depth, quantity and quality of the groundwater resources.

To extend Stockholm’s subway under Saltsjön Bay, bedrock quality was assessed using methods suited for marine conditions, gas detection, and urban electrical noise.

High-density GPR arrays enable fast, detailed utility mapping in urban areas—more efficient and accurate than single-channel systems.

Resistivity investigations can be used to map, monitor and locate gas extraction wells or carry out remediation work.

Resistivity and IP are effective for mapping old landfills and industrial sites, helping define their extent in both plan and depth for future land development.

Seismic vulnerability of a reinforced concrete building in Messina was assessed using geophysical methods, crucial in this high-risk area rebuilt after the 1908 earthquake.

Combined resistivity and IP measurements effectively reveal landfill structure, helping predict waste extent, contaminant spread, gas content, and soil stability.

GPR was used in 2020–2021 to study the structure and size of ashlars on parts of Jerusalem’s Western Wall during a Geo-Sense investigation.

High-resolution GPR was used to assess subsurface conditions at a former industrial site in southern Stockholm, supporting its sustainable redevelopment into housing and offices.

Combining resistivity and GPR revealed weak, water-conductive limestone layers along profiles and confirmed low erosion rates, ensuring building safety for 120 years.

ERT was used in Western Småland to investigate geology for a groundwater source, identifying promising drill targets in sediments and fractured bedrock.

High-frequency GPR successfully mapped heat pipes and electrical wires in an old home, providing essential data for efficient renovation planning.

GPR was efficiently used at Monteagudo Castle in Andalusia to detect archaeological remains, mainly linked to former castle structures.

ERT was used to investigate geology in the Scottish Highlands for a hydroelectric project, successfully pinpointing an expected fault zone in greater detail.

GPR was used to locate fiber optic cables in a road, helping prevent damage and accidents through crucial pre-excavation planning.

Drone-based GPR successfully mapped ice thickness on a Swedish lake, ensuring fast, safe assessment of ice conditions before a car racing event.

ERT effectively distinguishes natural ground from hydrocarbon-polluted areas, helping map pollutant spread and plan remediation.

ERT was used to assess subsurface conditions for a new dam on the Chenab River, identifying geology, structures, and groundwater, supported by drill and test pit data.

ERT and IP were used in Waziristan, Pakistan, to investigate copper ore deposits. Possible sulfide-rich zones were identified and visualized in 3D.

Bjerking AB combines geophysical and geotechnical data for high-quality infrastructure planning. Three case studies show joint use of resistivity, GPR, and seismic methods with geotechnical soundings.

ERT and IP surveys in Malaysia’s Central Belt mapped geophysical anomalies interpreted as massive and disseminated manganese ores.

A study in Gainsborough, UK, compared single-channel GPR to high-density arrays for utility detection. GPR arrays offered faster data collection, higher resolution, and better ROI for larger projects.