Welcome to EUREF 2019 Symposium

The Estonian Land Board has a great pleasure to invite you to attend the EUREF 2019 Symposium, which will take place from Wednesday, May 22, 2019 to Friday, May 24, 2019 in Tallinn, Estonia. A half day tutorial will be held on 21st of May.

EUREF is the International Association of Geodesy (IAG) Reference Frame Sub-Commission for Europe. The Sub-Commission EUREF was founded in 1987 at the International Union of Geodesy and Geophysics (IUGG) General Assembly held in Vancouver.

The EUREF Symposium has been organized since 1990 and the scope of the symposium covers EUREF activities, such as the realisation, maintenance, and usage of ETRS89, EVRS and the EUREF Permanent Network.

Program and Dates

Important dates for the Symposium:
April 23 2019
Deadline for online registration
April 23, 2019
Deadline for abstract submission
May 6, 2019
Preliminary programme
May 20-21, 2019
EUREF GB meeting (by invitation only)
May 21, 2019
EUREF Tutorial 2019
May 22-24, 2019
EUREF 2019 Symposium
May 22, 2019
Welcome Reception
May 23, 2019
Symposium dinner
Preliminary Programme

Wednesday, May 22

08:00 - 09:00
Registration, Hotel Nordic Forum
09:00 - 17:00
EUREF2019 Symposium
19:00 - 21:00
Welcome reception

Thursday, May 23

09:00 - 17:00
EUREF2019 Symposium
18:00 - 19:00
City tour
19:00 - 23:00
Symposium dinner

Friday, May 24

09:00 - 13:00
EUREF2019 Symposium


(Registered and paid)
 AlessandroCaporaliUniversity of Padova, Italy
 BrockmannElmarFederal Office of Topography Swisstopo, Switzerland
 BruyninxCarineRoyal Observatory of Belgium
 BurkeAidanOrdnance Survey Ireland
 De DonckerFilipNational Geographic Institute, Belgium
 De MoegenNicolasLeica Geosystems
 DroscakBranislavGeodetic and Cartographic Institute Bratislava
 DykowskiPrzemyslawInstitute of Geodesy and Cartography, Poland
 EllmannArtuEstonian Land Board
 FabianAndrasRoyal Observatory of Belgium
 FeriancMartinGeodetic and Cartographic Institute Bratislava
 FitzpatrickKatyOrdnance Survey Ireland
 FluerasMilutaNational Center for Cartography, Romania
 FranklinAndyOrdnance Survey, UK
 GreavesMarkOrdnance Survey, UK
 HorvathIvanGeodetic and Cartographic Institute Bratislava
 JensRieckenWorking Committee of the German Surveying Authorities
 KolloKarinEstonian Land Board
 KosenkoKsenijaLatvian Geospatial information agency
 KrzanGrzegorzUniversity of Warmia and Mazury in Olsztyn, Poland
 LiepiņšIvarsLatvian Geospatial information agency
 MarkaMailaEstonian Land Board
 MetsarJaanusEstonian Land Board
 OjaTõnisEstonian Land Board
 PihlakPriitEstonian Land Board
 ReznicekJanLand Survey Office, Czech Republic
 SacherMartinaFederal Agency for Cartography and Geodesy (BKG)
 SakneJānisLatvian Geospatial information agency
 Sanchez SobrinoJose AntonioInstituto Geografico Nacional of Spain
 SehnalMartinBEV - Federal Office of Metrology and Surveying
 ZurutuzaJoaquinAranzadi Science Society
 TawkYoussefLeica Geosystems
 VoelksenChristofBavarian Academy of Sciences and Humanities, Germany
 WolfgangSoehneFederal Agency for Cartography and Geodesy, Germany
  Ministry of the Environment, Estonia
  EGU OÜ, Estonia
  REIB OÜ, Estonia
  Hades Invest OÜ, Estonia
  Geosoft, Estonia
  CNES, France
  Institute of Geodesy and Cartography, Poland

Symposium Sessions

Opening session

Session Convener: Markku Poutanen

The Opening Session comprises opening speeches and welcome addresses by local, regional and international representatives. It is completed by the invited talk given by the GB chair about the activities of the EUREF Governing Board in the last twelve months and other talks of overall relevance.

Session 1 - Systems: ETRS89, EVRS

Session Conveners: Zuheir Altamimi, Markku Poutanen

EUREF designed and established the European Geodetic Reference Systems. The European Terrestrial Reference System 89 (ETRS89) has a continent-wide significance. It is based on the International Terrestrial Reference System (ITRS), but tied to the stable part of Europe, so that the relationship between the two systems is entirely defined by a similarity transformation formula. ETRS89 unifies national reference systems for surveying, mapping, GIS and navigation in Europe. The benefit of ETRS89 is well demonstrated through its acceptance by several communities, e.g. EuroControl and the European Commission. The European Vertical Reference System (EVRS) is a kinematical height reference system. It is the basis for harmonisation of the vertical reference of spatial coordinates.

Presentations of the session report on legal acceptance, potential usage in geo-referencing applications and benefit for practice of the outlined geodetic reference systems and their practical realisations.

Session 2 - Networks: EPN, UELN, Densification

Session Conveners: Elmar Brockmann, Lennard Huisman

The reference networks through their observations are maintaining but also providing access to the reference system realisations. The EUREF Permanent Network (EPN) and the United European Levelling Network (UELN) are the core infrastructures of EUREF. The EPN is linked to the global network of the International GNSS Service (IGS) and contributes to the definition of the International Terrestrial Reference System (ITRS) realisations, but also serves as reference for the national permanent GNSS networks.

This hierarchy ensures the conformity and homogeneity of the geodetic reference system realisations from the global to national level.

The operation of a permanent GNSS network requires several well organized components: network coordination, data centres, analysis centres and product gateways. The routine cooperation with the station managers and the user community guarantees the appropriate implementation and usage of GNSS. The objective of the UELN is to establish a unified vertical datum for Europe at the one-decimetre level. Due to the different technology characteristics of GNSS and levelling, UELN is developing on a much longer time scale. However, the GNSS needs for interaction with the height reference systems and networks may leading to changes in the practical implementation. The session presents experiences and improvements of the provision and dissemination of data and results stemming from the geodetic reference networks. Improved analysis strategies and the latest results are expected to be presented.

Session 3 - Techniques: GNSS, Levelling, Combination

Session Conveners: Rolf Dach, Martina Sacher

Geometry and gravity related measurement techniques allow for implementation of a European geodetic reference frame. Nowadays, applications of a Global Navigation Satellite Systems (GNSSs) are the dominant technique measure the geometry for continental regions. Direct measurements of the gravity or levelling are techniques related to the gravity field of the earth. All techniques need to take variation of system earth into account, if a longer time period or higher accuracy of site locations is in the focus.

Combination of different techniques is not only a validation of one technique against another one, but also opens new applications, e.g. levelling with GPS GNSS by using known geoids’ information. EUREF supports such practical aspects by the European Vertical Reference Network (EUVN) and EUVN-DA actions. GNSS and levelling measurements refer to discrete points. Developments of remote sensing methods extend the measurement of geodetic reference frame components from points to the surface, e.g. Synthetic Aperture Radar (SAR) measures height changes of the earth's surface. The combination of SAR and GNSS is a challenge for the future. A couple of developments, which include to transport GNSS observations in real-time (data streaming) and even to calculate the receiver position in real-time are almost completed. The provision of geodetic reference frames in real-time has an important impact on current practise. The installation of new satellite navigation systems beside GPS and GLONASS, such as Galileo, BeiDou, and QZSS and NaviC, results in autonomous stand-alone solutions and combined multi-GNSS techniques. More satellites for the multi-GNSS scenario are going for deployment in the near future and investigations to understand improvements for geodetic aspects have already started.

This session presents developments, analysis and results of all techniques that are relevant for the establishment of reference frames. Real-time and multi-GNSS developments are of special interest.

Session 4 - Applications: Earth Sciences, Geo-Information

Session Conveners: Alessandro Caporali, Christof Voelksen

Geodetic techniques measure the situation on the earth's surface. Modern space techniques extend observations to satellites orbiting the planet earth or even to extra-terrestrial targets. Today the position of particular sites on the earth's surface and its variation is known to the sub-millimetre level for the period of decades. These techniques are also sensitive for many occurrences within the system earth, e.g. changes in the atmosphere, movement of tectonic plates and the state of solar radiation. The cross-linking of geodetic findings and knowledge from other geosciences is in the focus of research projects since long time. Geodesy contributes to understand the system earth. This session presents recent research projects of geosciences such as the European Plate Observing System (EPOS) and also updated results of ongoing projects. (Near) Real-time analysis of GNSS observations provides geophysical parameters in (near) real-time, e.g. information about the troposphere state. It contributes to online monitoring of the natural environment. Interdisciplinary cooperation for geo-monitoring and visualising in geo-information systems will also be addressed here.

Session 5 - National Reports

Session Conveners: Jan Krynski, Karin Kollo

Representatives of European countries meet the challenge to report on national activities related to projects of geodetic reference systems. These are GNSS networks, height systems and geodetic methods based on the gravity field of the earth. New projects will be introduced, but also updated results of ongoing projects are of interest. Knowledge about progress in particular European countries provides valuable ideas for future planning in the home country and for a pan-European realisation of geodetic reference systems. The oral presentations should be concise, to allow plenty of nations to report.

Closing Session

Session Convener: Markku Poutanen

The Closing Session includes the Symposium's resolutions and elections, if any, the Symposium's awards, acknowledgement, and a short presentation of the next Symposium's location.


A half-day tutorial "Transformations using PROJ" will take place on the 21st of May from 12.00 to 18.00 at the Estonian Land Board.

The tutorial is organised by the Estonian Land Board, Department of Geodesy.

The tutorial programme:
12:00 – 13:00 Lunch
13:00 – 13:45 Introduction to PROJ - Kristian Evers
13:45 - 14:15 Geodetic Standardisation, Thomas Knudsen
14:15 - 14:45 ETRS89 Transformations in Fennoscandia, Pasi Häkli
14:45 – 15:15 Coffee break
15:15 – 17:15 Practical exercises, Kristian Evers
17:15 - 18:00 Case studies, Gudmundur, Valsson, Lennard Huismann, Elmar Brockmann

Proj is a library that provides methods to transform from one coordinate reference system to another, it includes several transformations between datums and supports a large number of map projections. For more information, see the website: http://proj4.org/.

Social events

Welcome reception

On Wednesday, May 22nd there will be a reception, including a buffet, to welcome all participants. The reception will be held in the restaurant Platz, just a short walk from the symposium venue.


On Thursday, May 23rd the symposium dinner will be held in the House of the Blackheads in the Old Town of Tallinn. Before dinner, to allow you feel the authentic medieval atmosphere and admire the beauty of Tallinn, we offer a short guided tour that starts from the Nordic Hotel Forum and ends at the House of the Blackheads.

Payment & Registration

To register to the event, please fill in the Registration Form and pay the registration fee(s). An invoice will be sent to your e-mail address provided in the registration form.

Symposium registration fees (includes participation in the Symposium, lunches, coffee breaks, conference material and social events):
Regular (up to April 23rd) €260
Late (up to May 3rd) €300
Accompanying person: €125 (includes welcome reception, guided tour and dinner)

Tutorial registration fee (includes participation in the Tutorial, lunch and coffee break): €40

The symposium/tutorial fee(s) shall be paid by bank transfer to one of the bank accounts of the Ministry of Finance:
EE891010220034796011 (SEB Pank);
EE932200221023778606 (Swedbank);
EE701700017001577198 (Luminor).
When paying, please give the reference "2300081701" and the name Maa-amet and the name(s) of participants included in the payment's information field.

Important addresses
AS SEB Bank - Tornimäe 2, 15010 Tallinn, Estonia.
Swedbank AS - Liivalaia 8, 15010 Tallinn, Estonia.
Luminor Bank AS - Liivalaia 45, 10145 Tallinn, Estonia.

Ministry of Finance
Suur-Ameerika 1, Tallinn 10122
Phone: +372 611 3558
Fax: +372 611 3664

Estonian Land Board
Mustamäe tee 51
10621 Tallinn
Phone number: +372 665 0600
Fax number: +372 665 0604
intracommunity VAT number: EE100527043

Unfortunately, we cannot accept payment by credit card or on-site payment.

Poster presentations:

The posters should be prepared in portrait with maximum size of A0 (1189 x 841 mm). If there is time in the event agenda, then a short presentation (ca 2min) may be possible. Information on that will be published after the registration deadline, in the preliminary programme


Nordic Hotel Forum
Viru väljak 3, Tallinn
Image of Nordic Hotel Forum

The symposium will be held at the Nordic Hotel Forum. This superior four-star hotel is one of the most favoured conference and business hotels in Tallinn. The hotel is located in the heart of Tallinn, just 150 meters from the picturesque Old Town. In addition, there is a wide variety of restaurants, bars and shopping centres nearby. Guests can enjoy a variety of complimentary amenities – WiFi, leisure centre, gym and business centre.

Estonian Land Board
Mustamäe tee 51, Tallinn
Image of Estonian Land Board

The tutorial will take place in the premises of the Estonian Land Board. The Land Board is located ca 4.5 km from the city centre and is easily accessible by public transport. You can board the trolleybus no 1 at the stops "Kaubamaja", "Estonia" or "Vabaduse väljak", or the bus no 16 at the stops "Estonia" or "Vabaduse väljak". The stop to get off is "Marja", which is located across the street from the Land Board. The ride will take approximately 15-20 minutes. Single journey tickets can be bought in cash from the driver for €2. Timetables and further information about the public transport in Tallinn can be found here.

Restaurant Platz
Roseni 7, Tallinn
Image of Restaurant Platz

Restaurant Platz will be the venue for the icebreaker reception in the evening of the 22nd of May. It is situated just a few hundred meters from the symposium venue in the Rotermann Quarter, a former merchant court that has become an urban space of unique architecture and vibrant rhythms. The cosy atmosphere at Platz will provide a great environment for the participants for networking.

House of the Blackheads
Pikk 26, Tallinn
Image of House of Blackheads

The official dinner of the symposium will be held in the House of the Blackheads. Tallinn’s Brotherhood of the Blackheads was a guild for unmarried merchants and ship owners. The House of the Blackheads is one of the oldest and most renowned building complexes in Tallinn’s Old Town. The most unique rooms are the White Hall (1532), which is the first venue in Renaissance style in Tallinn, and the St. Olaf’s Guild Hall (1422), built in the late Gothic style.


Please note that all participants are expected to arrange and cover the costs of their accommodation themselves.

A limited number of rooms have been provisionally booked at preferential rates at the Nordic Hotel Forum. Special rate: Standard Class single room €125, double room €136. For booking at this rate please use the following link https://www.myhotelreservation.net/b/hatllnor/?i=EUREF2019&f=2019-05-20. The rates cannot be guaranteed after 1st of May.

There are a great number of other hotels situated nearby, e.g. Sokos Hotel Viru, Tallink City Hotel, Park Inn by Radisson Central, Kalev Spa Hotel to name a few. More options for accommodation can be found at Booking.com.

Practical information

Getting to Estonia

By Air

The city's international airport, Lennart Meri Tallinn Airport is conveniently located just 4 km from the city centre. Information about direct destinations is available here https://www.tallinn-airport.ee/en/flight-info/destinations/

How to get to the Nordic Hotel Forum

Bus no. 2 makes the trip from the airport to the city centre and port approximately every 20 minutes and operates from ~6:30 am until midnight. Single journey tickets can be bought in cash from the driver for €2. The most central stop is the "Laikmaa" stop on Laikmaa Street, between the Tallink Hotel and the Viru Centre shopping mall, just a few hundred meters from the Nordic Hotel Forum.

Tram no. 4 from the airport to the city centre operates a frequent schedule from 5:30 am until 00:45. Single journey tickets can be bought in cash from the driver for €2. The most central stop is the "Hobujaama" stop, almost in front of the Nordic Hotel Forum.

A taxi stand can be found just outside the arrivals hall. The fare from the airport to the city centre is about €10, credit cards are accepted.

By Sea

Ferry routes connect Tallinn with Helsinki, Stockholm and Saint Petersburg. Ferries between Tallinn and Helsinki operate several times a day covering the distance in approximately 2 hours. Ferries between Tallinn and Stockholm depart every evening, with the trip taking approximately 15 hours.

Passenger terminals are located within walking distance of the city centre.

Weather and Climate

The climate in Tallinn during May can be summarized as cool and reasonably dry. The daytime average temperature is around 15˚C and at night 5˚C, but exceptional heatwaves may also occur with temperatures reaching 20-25˚C.

Weather forecast for Estonia is available at http://www.ilmateenistus.ee/?lang=en

Fast Facts

European Union membership: since 2004
Official language: Estonian, with English widely spoken
Currency: Euro €
Time zone: GMT +2 in winter and GMT +3 in summer
Country dialling code: 00372 or +372
Emergency number: 112
Plug socket: type F, with voltage of 230V and frequency of 50Hz

Additional information can be found at https://www.visittallinn.ee/eng/visitor and https://www.visitestonia.com/en

Local Organizing Committee

  • Artu Ellmann
  • Karin Kollo
  • Maila Marka
  • Jaanus Metsar
  • Ülle Vadi
  • Helena Orusalu
  • Kalver Keskküla
Estonian Land Board
Tel: +372 665 0770

E-mail: euref2019@maaamet.ee