ISSN 0016-7932, Geomagnetism and Aeronomy, 2015, Vol. 55, No. 4, pp. 547–554. © Pleiades Publishing, Ltd., 2015. Original Russian Text © R.I. Krasnoperov, R.V. Sidorov, A.A. Soloviev, 2015, published in Geomagnetizm i Aeronomiya, 2015, Vol. 55, No. 4, pp. 568–576. 547 1. INTRODUCTION The International Real-Time Magnetic Observa- tory Network (INTERMAGNET) routinely records components of the Earth’s magnetic field and provides the global scientific society with magnetic data recorded and processed according to highest stan- dards. The INTERMAGNET network is a unique source of data for the interpolation and approximation of the magnetic field distribution with the goal of modeling the field and studying the geomagnetic activity (Berezko et al., 2011; Soloviev A. et al. 2012a; 2013b). In particular, such techniques allow a deter- mination of the parameters of the Earth’s magnetic field in hard-to-reach regions of the Russian Federa- tion, where the deployment of geomagnetic observa- tories is impossible. The INTERMAGNET network today includes more than 130 magnetic observatories located at different places, from polar archipelagos to equatorial regions. The density and geographical cov- erage of the geomagnetic observatory network is the most important factor in the construction of adequate models of the Earth’s magnetic field and the distribu- tion of its variations. The density is quite high in West- ern Europe, and the coverage is quite homogeneous in Northern America, while the INTERMAGENT net- work is less dense in Asia and on the territory of USSR. In particular, only eight Russian, two Ukrainian, and one Kazakhstan observatories participate in the INTERMAGNET network. Thus, compensation for the lack of Russian magnetic observatories should contribute significantly to the development of a system for monitoring and estimating geomagnetic condi- tions on the Russian territory. The first Russian magnetic observatories were ren- ovated according to the INTERMAGENT standards with the support of the CRENEGON international project (The Creation of a Renewed Network of Basic Geomagnetic Observatories of NIS Countries). This project allowed five observatories of NIS countries to join the INTERMAGNET network. The Irkutsk mag- netic observatory started transmitting data into the INTERGAMGNET geomagnetic information nodes in 1998 and became the first Russian magnetic obser- vatory to officially enter the INTERMAGNET net- work in 1999 (Potapov et al., 2011). In 2002, an INTERMAGNET-standard magnetic observatory was deployed on the basis of the Borok geophysical observatory (Yaroslavskaya oblast) as part of the col- laboration between the Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, and the Paris Institute of the Physics of Earth. This observatory received official INTERMAGNET status in April 2004 (Chulliat, 2008). The development of a network of INTERMAGNET- standard magnetic observatories on the Russian territory is an important applied research task that can be imple- mented by joint efforts of institutes of the Federal Agency for Scientific Organizations and ROSHYDROMET (Gvishiani et al., 2014; Soloviev et al., 2013a). The deployment of new INTERMAGENT magnetic Modern Geodetic Methods for High-Accuracy Survey Coordination on the Example of Magnetic Exploration R. I. Krasnoperov a , R. V. Sidorov a , and A. A. Soloviev a, b a Geophysical Center of the Russian Academy of Sciences, Moscow, Russia b Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russia e-mail: r.krasnoperov@gcras.ru; r.sidorov@gcras.ru; a.soloviev@gcras.ru Received October 29, 2014; in final form, February 5, 2015 Abstract—The purposes and problems of the international network of geomagnetic observatories INTERMAGNETare briefly described in the work. The importance of the development of the Russian seg- ment of the network as a part of a system for monitoring and estimating geomagnetic conditions on the Rus- sian territory is emphasized. An example of the use of modern high-precision geodetic equipment for coor- dinate referencing of field geophysical observation is described. Factors that distort the referencing of field observations in problems of survey, engineering, and technical geophysics are listed, as well as those related to detail and high-resolution geophysical surveying and those that require a corresponding accuracy of obser- vation point coordination. The magnetic exploration at the site of the Yamal INTERMAGNET-standard observatory serves an example to describe a technique for geodetic provision of a detailed geophysical survey by means of joint use of differential GNSS measurements and electronic tacheometry. The main advantages and disadvantages of the technique suggested are listed. DOI: 10.1134/S0016793215040076