Guidelines and Forms for ECGN

For each mean observation technique (GNSS, gravity measurements, levelling, tide gauge) guidelines and forms for acquisition of data were prepared. They include details about the execution of measurements, the expected accuracy as well as information about collecting of data. Generaly already existing data bases will be used for ECGN project.

The guidelines and forms are in detail:

Meta Data

In general the ECGN project based on existing data. Only the information about the data i.e. meta data should be collect. Therefore in the meta data form the availability of the data and the access to the data should be described. The local ties are also a part of the form.

Download of Meta Data Form in different formats:

• ECGN Meta Data Form (pdf 25-KB)
• ECGN Meta Data Form (as ASCII) (plain 3-KB)
• ECGN Meta Data Form (msword 27-KB)

GNSS

All ECGN stations should be included to the EUREF Permanent network (EPN). Therefore the stations have to fulfil the requirements of EPN.

The Standards for GNSS EPN Stations from Central Bureau of EPN can be find here

• Procedure for becoming an EPN station (external link, pdf 60kByte)

and the guidelines for EPN Stations and Operational Centres under

• Guidelines for EPN Stations and Operational Centres (external link, pdf 3.5 MByte)

Gravity measurements

For the absolute gravity measurements a data base will be established. General information about the measurements, data formats and documentation for absolute gravimeter can be found in the corresponding standards.

Download standards for gravity measurements:

• ECGN Standards for Absolute Gravity measurements (This document has no accessibility features) (pdf 192-KB)
• Standard for Superconducting Gravimeter (SG) observations at Global Geodynamic Project (GGP) (external link to Global Geodynamic Project - Agreement and Standards)

Levelling

All ECGN stations should be connected to the United European Levelling Network UELN (see - Information Service for European Vertical Reference Systems - topic UELN). The rules for connection the ECGN station to UELN are described in the guideline and the corresponding measurements data should be registered in the ECGN Levelling Form.

Download standard for levelling and levelling forms:

• ECGN Standards for Levelling Connection of the ECGN Station (This document has no accessibility features) (pdf 138-KB)
• ECGN Levelling Form (pdf 17-KB)
• ECGN Levelling Form (msword 54-KB)

Tide Gauges

For Tide Gauge measurement the data of Permanent Service of Mean Sea Level Observing System PSMSL and the project European Sea Level Service ESEAS should be used.

Download standard for Tide Gauge measurements:

• ECGN Standard for Tide Gauge measurements (This document has no accessibility features) (pdf 47-KB)

Local Ties

The observation of different techniques should be in a close range according to the conditions of the ECGN station. Each type of observation has its own marker and one marker has to be declared as main marker. To this marker the local ties have to be known.

Download standard for Local Ties Determination:

• ECGN Standard for Local Ties Determination (This document has no accessibility features) (pdf 63-KB)