b'AEM 2023Short abstractsCombined ground-UAV TDEM survey over a goldstationary systematic component of the measurements and in prospect in Baikal-Patom Highlands (eastern Russia)the form of a stationary field vector rigidly connected to the with detection of AIP effect transmitter. To implement the second approach, the 4 and the EQUATOR use two additional dipoles to determine Vladislav Kaminski, Yuri Davydenko, Sergey Bukhalov andthe relative location of the transmitter and the receiver. At IvanGoryachev high altitude, in the absence of a response from the ground, the following statistical parameters of the signals remaining Irkutsk State Technical University (ISTU), Irkutsk, IRKUTSK REGION,after interference compensation were analysed: the standard Russia deviation and the difference between the minimum and the The study is describing a combined ground-UAV TDEMmaximum values.survey, carried out over one of the gold prospects in Eastern Russia. A drone-mounted receiver was used to measure TDEMIntegration of airborne transient electromagnetic response from ground, excited by a transient field powered linemodels with ground geophysics and borehole data transmitter. Effect of Airborne Induced Polarisation was detectedfor groundwater mapping in Hawkes Bay region, New in the data, so the collected data were further inverted using a Cole-Cole model approximation in order to extract the fourZealandphysical parameters, which were then mapped and interpretedRichard Kellett1, Zara Rawlinson 2 , Tusar Sahoo3, Angela Griffin3, in an attempt to delineate mineral exploration targets. Mawenn Herpe2, Conny Tschritter2, Mark J F Lawrence3 and Simon Harper4Airborne electromagnetics: Dealing with the aircraft 1. Surface Geosciences, GNS Science, Lower Hutt, Wellington, New speed ZealandEvgeny V. Karshakov 2. Surface Geosciences, GNS Science, Wairakei, Taupo, New Zealand3. Earth Resources and Materials, GNS Science, Lower Hutt, V.A. Trapeznikov Institute of Control Sciences, Russian Academy ofWellington, New ZealandSciences, Moscow, MOSCOW, Russia 4. Hydrology and Groundwater, Hawkes Bay Regional Council, Napier, Hawkes Bay, New Zealand It is no secret that the solution of Maxwells equations depends on the coordinate system. But in current studies,As part of the Hawkes Bay 3D Aquifer Mapping Project the dependence of the solution on both the speed of the(3DAMP), airborne electromagnetic data have been collected transmitter and the speed of the receiver is usually notover several basins. The project was a three-year initiative discussed. (201922) jointly funded by the Provincial Growth Fund (Knoa Regional Economic Development & Investment Unit), In this article, I present an analysis of such an effect on theHawkes Bay Regional Council (HBRC) and GNS Science (GNS). readings of an alternating magnetic field receiver and on theThe object of the study is to improve the hydrogeological secondary field. I have found that the effect of the receiversmodel of the area using a resistivity model that extends to motion is critical. I have proposed a compensation method now300 m depth. The model was generated from an airborne implemented in some systems, after which the measurementsTEM (SkyTEM) survey that covered the region at a line of a moving receiver can be considered as signals of anspacing of 170 - 250 m. A total of 7780 line-km was flown in equivalent stationary receiver at the current position. a period of four weeks. Supporting data includes ground-It is also shown that the field distortions proportional tobased geophysical surveys (TEM, resistivity, and seismic the aircraft speed are related to the flight altitude and thereflection lines), and detailed geological data from a set of electrical conductivity of the medium. I analysed data fromresearch boreholes. A total of 6800 boreholes exists in the the EQUATOR airborne electromagnetic system obtained overcatchments but the majority are less than 30 m deep. A set the sea surface. It is shown that the influence of speed is muchof 30 deeper boreholes across the area with more detailed less than the influence of restrictions on the environmentgeological information provide valuable control on the model, which are imposed during the inversion of airborneSkyTEM processing and modelling. The integration of a 3D electromagnetic data. model developed from the inversion of the SkyTEM data and ground geophysics data, displays the geometry of the fluvial systems (gravel), marine incursions (silt and clay), and complex Analysis of the self-interference model andfaulting that affects the deposition of the sedimentary units. compensation methods in airborne electromagnetics Work is ongoing to develop models of aquifer potential based Evgeny Karshakov , Ekaterina Tretyakovaand Dmitry Kaplun on hydrogeological facies that will improve the understanding 1 1 2of the groundwater system.1. V.A. Trapeznikov Institute of Control Sciences, Russian Academy of Sciences, Moscow, MOSCOW, Russia Modelling induced polarisation effects in frequency-2. Aerogeophysica, Moscow, Russia domain dataWe compare various compensation methods for the EQUATOR system and for several modifications of theDmitry Khliustov and Evgeny Karshakovairborne electromagnetic system 4: with a transmitterInstitute of Control Sciences, Russian Academy of Sciences, Moscow, loop attached to the fuselage of Mi-8 helicopter, with a loopMOSCOW, Russiaattached to the fuselage of An-3 aircraft, and with a loop towed by Eurocopter AS350B3. We consider two ways of theInduced polarisation (IP) effects may have significant impact on transmitter signals interference modelling: in the form of aairborne electromagnetic (AEM) data. They lead to dependence AUGUST 2023 PREVIEW 58'