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Browsing NGU Open Archive by Author "Tassis, Georgios"

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Now showing items 1-20 of 39

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    • Beskrivelse til kvartærgeologisk kart Brandval 2015-1, M 1:50 000 

      Høgaas, Fredrik; Hansen, Louise; Larsen, Bjørn Eskil; Olsen, Lars; Tassis, Georgios (NGU-Rapport (2020.006), Report, 2020)
      NGU har i perioden 2016-2019 utført kvartærgeologisk kartlegging av kartblad Brandval (2015 I). Marin grense (MG) i regionen er høy (omtrent 205 moh) og hovedfokuset med kartleggingen har derfor vært å undersøke om det ...
    • Comparison between Sensors and Software and Malå GPR equipment based on test measurements at Bøaøyna, Stryn Municipality, Norway 

      Tassis, Georgios; Rønning, Jan Steinar; Hansen, Louise; Tønnesen, Jan Fredrik (NGU-Rapport (2015.014), Report, 2015)
      The aim of this report is to document the results of a comparative performance test between systems and antennas from two major GPR manufacturers namely Sensors & Software (S&S) from Canada and Malå from Sweden. The Malå ...
    • Comparison between Sensors and Software and Malå GPR equipment based on test measurements at Eikesdalen, Nesset municipality, Norway 

      Rønning, Jan Steinar; Tassis, Georgios (NGU-Rapport (2015.046), Report, 2015)
      In June 23rd 2015, NGU conducted a set of GPR test measurements in Eikesdal, Møre og Romsdal county. The aim for these measurements was to compare performance of the NGU georadar systems. A single profile was measured four ...
    • Depth to bedrock and bedrock morphology from gravity measurements at Melhus, Melhus Municipality, Sør-Trøndelag 

      Rønning, Jan S.; Gellein, Jomar; Tassis, Georgios (NGU-Rapport (2016.011), Report, 2016)
      This report presents geophysical interpretation results of gravity data as part of a project entitled ORMEL. The main objective of the project is to discern the amount of groundwater, and hence energy, that can be withdrawn ...
    • Depth to bedrock and bedrock morphology from gravity measurements at Stryn, Stryn Municipality, Sogn og Fjordane 

      Tønnesen, Jan Fredrik; Hansen, Louise; Tassis, Georgios; Gellein, Jomar (NGU-Rapport (2016.029), Report, 2016)
      This report presents geophysical interpretation of gravity data as part of a project whose main objective is to supplement the mapping of Quaternary geology at Stryn. This is achieved through the extraction of depth to ...
    • Detection and characterisation of fracture zones in bedrock in a marine environment - possibilities and limitations 

      Tassis, Georgios; Dahlin, Torleif; Rønning, Jan S.; Tsourlos, Panagiotis (NGU-Rapport (2013.017), Report, 2014)
      In a continuation of the work conducted by F. Reiser et al. (2009) testing the efficiency of Electrical Resistivity Traversing (ERT) land surveys over fracture zones, we have performed a similar study for marine environments ...
    • E39 Krysning av Romsdalsfjorden. Reprosessering og tolkning av tidligere utført geofysikk 

      Rønning, Jan S.; Larsen, Bjørn E.; Tassis, Georgios (NGU-Rapport (2019.007), Report, 2019)
      Statens vegvesen, Region Midt, planlegger krysning av Romsdalsfjorden med tunnel. Prosjektet er en del av E39 og den aktuelle parsellen er kalt Vik - Julbøen. Denne består av hengebru over Julsundet fra Julbøen på fastlandet ...
    • Georadar measurements at the Råbygda landslide site near Orkanger, Orkdal Municipality (February 16th, 2019) 

      Hansen, Louise; Solberg, Inger-Lise; Tassis, Georgios (NGU-Rapport (2019.024), Report, 2019)
      On February 16th, 2019 a landslide took place at the Råbygda village just northwest of Orkanger, which resulted in a farmhouse destroyed and one human casualty. As a response to this situation, a multidisciplinary collaboration ...
    • Georadar measurements for Statens Vegvesen in Vågå kommune 

      Tassis, Georgios (NGU-Rapport (2015.061), Report, 2016)
      In October 2015, the NGU conducted Georadar measurements in two locations in Vågå municipality, Oppland county. The survey is funded by the Norwegian Public Roads Administration (Statens vegvesen) and its purpose is to ...
    • Georadar measurments for Statens Vegvesen at Kistefoss - Kleggerud and Roa, Jevnaker and Lunner kommuner 

      Tassis, Georgios (NGU-Rapport (2015.062), Report, 2016)
      In October 2015, the NGU conducted Georadar measurements in two locations: at Kistefoss - Kleggerud just south of Jevnaker in Jevnaker municipality and north of Roa in Lunner municipality, Oppland county. The survey is ...
    • Georadarundersøkelser på Kilemoen, Ringerike kommune 

      Margreth, Annina; Neeb, Peer-Richard; Tassis, Georgios; Wolden, Knut (NGU-Rapport (2017.039), Report, 2017)
      Som en del av oppdateringen av de største grusavsetningene i Ringerike kommune har Norges geologiske undersøkelse (NGU) i samarbeid med Svelviksand AS har utført georadarmålinger på der sand- og grusforekomst på Kilemoen ...
    • GPR survey at Arildsløkka, Trondheim for the detection of historical reinforcement structures along the Nidelva riverbank 

      Tassis, Georgios; Solberg, Inger-Lise; Brönner, Marco; Larsen, Bjørn-Eskil (NGU-Rapport (2020.038), Report, 2020)
      The Norwegian Water Resources and Energy Directorate (NVE) is investigating measures to prevent landslides at Arildsløkka, Trondheim city center. Historical evidence shows that the area was secured by timber boxes in the ...
    • Gravity measurements applied to the mapping of sediment thickness and bedrock morphology in Orkdalen, Orkdal Municipality, Sør-Trøndelag 

      Tassis, Georgios; Tønnesen, Jan Fredrik; Gellein, Jomar (NGU-Rapport (2014.010), Report, 2014)
      This report presents geophysical interpretation results of gravity data as part of a project entitled KARMA-3D. The main goal of the project is to perform three dimensional mapping characterization of Quaternary sediments ...
    • Helicopter-borne magnetic, electromagnetic and radiometric geophysical survey at Andøya, Nordland County 

      Rodionov, Alexei; Tassis, Georgios; Ofstad, Frode (NGU-Rapport (2012.056), Report, 2012)
      NGU conducted an airborne geophysical survey in Andøya area in August - September 2012. This report describes and documents the acquisition, processing and visualization of recorded datasets. The geophysical survey results ...
    • Helicopter-borne magnetic, electromagnetic and radiometric geophysical survey at Langøya in Vesterålen, Nordland 

      Tassis, Georgios; Rodionov, Alexei; Ofstad, Frode; Stampolidis, Alexandros (NGU-Rapport (2013.044), Report, 2013)
      NGU conducted an ariborne geophysical survey in Langøya area in July - August 2013 as part of the MINN-project. This report describes and documents the acquisition, processing and visualization of recorded datasets. The ...
    • Helicopter-borne magnetic, electromagnetic and radiometric geophysical survey in Finnsnes area, Lenvik, Troms 

      Rodionov, Alexei; Tassis, Georgios; Ofstad, Frode (NGU-Rapport (2012.047), Report, 2012)
      NGU conducted an airborne geophysical survey in Finnsnes area in July - August 2012. This report describes and documents the acquisition, processing and visualization of recorded datasets. The geophysical survey results ...
    • Helicopter-borne magnetic, electromagnetic and radiometric geophysical survey in Gauldal and Sokndal area, Sør-Trøndelag County 

      Tassis, Georgios; Rodionov, Alexei; Ofstad, Frode; Stampolidis, Alexandros (NGU-Rapport (2015.053), Report, 2016)
      NGU conducted an airborne geophysical survey in the Gauldal and Sokndal area in July and October 2015 as a part of the MINS project. This report describes and documents the acquisition, processing and visualization of ...
    • Helicopter-borne magnetic, electromagnetic and radiometric geophysical survey in Harstad area, Troms County 

      Ofstad, Frode Ofstad; Wang, Ying; Tassis, Georgios (NGU-Rapport (2020.009), Report, 2020)
      NGU conducted an airborne geophysical survey in Harstad area in July 2019. This report describes and documents the acquisition, processing and visualization of the recorded datasets. The geophysical survey results consist ...
    • Helicopter-borne magnetic, electromagnetic and radiometric geophysical survey in Hattfjelldal, Nordland County 

      Rodionov, Alexei; Tassis, Georgios; Stampolidis, Alexandros; Ofstad, Frode (NGU-Rapport (2014.029), Report, 2014)
      NGU conducted an airborne geophysical survey in Hattfjelldal area in July-August 2014 as part of the MINN project. This report describes and documents the acquisition, processing and visualization of recorded datasets. The ...
    • Helicopter-borne magnetic, electromagnetic and radiometric geophysical survey in Holandsfjorden area, Meløy, Nordland 

      Ofstad, Frode; Tassis, Georgios; Rodionov, Alexei (NGU-Rapport (2013.043), Report, 2013)
      NGU conducted an airborne geophysical survey in Holandsfjorden area in July 2013 as part of the MINN project. This report describes and documents the acquisition, processing and visualization of recorded datasets. The ...

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