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National Report of SWEDEN to the NKG General ... - Lantmäteriet

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2<br />

different network RTK s<strong>of</strong>tware and<br />

<strong>the</strong> work was performed by<br />

Lantmäteriet in collaboration with<br />

KMS 6<br />

and <strong>the</strong> Norwegian Mapping<br />

Authority.<br />

The processing <strong>of</strong> <strong>the</strong> <strong>NKG</strong> 2003 GPS<br />

Campaign has been co-ordinated from<br />

Lantmäteriet during 2004, with a final<br />

report completed in 2005 (Jivall et al,<br />

2005 and Jivall et al, 2006). The<br />

purposes <strong>of</strong> <strong>the</strong> campaign were <strong>to</strong><br />

develop a unified ETRS 89 reference<br />

frame on <strong>the</strong> cm level for <strong>the</strong> Nordic<br />

area and <strong>to</strong> develop transformation<br />

strategies between ITRF 7<br />

and <strong>the</strong><br />

national realisations <strong>of</strong> ETRS 89. The<br />

GPS observations were carried out<br />

from September 28 th <strong>to</strong> Oc<strong>to</strong>ber 4 th<br />

2003 on 133 stations in <strong>the</strong> Nordic and<br />

Baltic countries.<br />

1.2.2 <strong>NKG</strong> EPN 8 LAC 9<br />

Lantmäteriet operates <strong>the</strong> <strong>NKG</strong> EPN<br />

LAC in co-operation with Onsala<br />

Space Observa<strong>to</strong>ry at Chalmers<br />

University <strong>of</strong> Technology. Since May<br />

2005 (GPS week 1321) <strong>the</strong> daily<br />

processing has changed from version<br />

4.2 <strong>to</strong> version 5.0 <strong>of</strong> <strong>the</strong> Bernese<br />

s<strong>of</strong>tware. Since <strong>the</strong> last <strong>NKG</strong> <strong>General</strong><br />

Meeting four years ago seven stations<br />

have been added <strong>to</strong> <strong>the</strong> <strong>NKG</strong> EPN<br />

LAC sub-network, which means that<br />

<strong>to</strong>tally 42 stations are processed <strong>to</strong>day<br />

(figure 1.1). Lantmäteriet has also<br />

represented <strong>NKG</strong> at <strong>the</strong> fourth and<br />

fifth EUREF 10<br />

LACs Workshop, which<br />

were held in 2003 and 2006.<br />

6<br />

KMS = Kort & Matrikelstyrelsen, Denmark<br />

7<br />

ITRF =International Terrestrial Reference Frame<br />

8<br />

EPN = EUREF Permanent Network<br />

9<br />

LAC = Local Analysis Centre<br />

10<br />

EUREF = <strong>the</strong> IAG Subcommission for Europe<br />

IAG = International Association <strong>of</strong> Geodesy<br />

Figure 1.1: The <strong>NKG</strong> EPN LAC subnetwork.<br />

1.2.3 Galileo<br />

Staff from Lantmäteriet have participated<br />

as experts in <strong>the</strong> definition <strong>of</strong><br />

user requirements for Galileo and in<br />

<strong>the</strong> evaluation within EU 11 <strong>of</strong> proposals<br />

in FP6 12 .<br />

1.2.4 EGNOS 13<br />

During 2003 an EGNOS RIMS 14<br />

was<br />

inaugurated at Lantmäteriet in Gävle.<br />

The station has been successfully<br />

supported by Lantmäteriet since that<br />

year.<br />

1.2.5 Nordic Positioning Service<br />

Lantmäteriet participates in <strong>the</strong> project<br />

Nordic Positioning Service (Engfeldt et<br />

al, 2006). The major purpose <strong>of</strong> Nordic<br />

Positioning Service is both <strong>to</strong> exchange<br />

data between <strong>the</strong> networks <strong>of</strong><br />

permanent reference stations in<br />

Denmark, Norway and Sweden and <strong>to</strong><br />

establish common positioning services.<br />

The project also implies exchange <strong>of</strong><br />

knowledge in <strong>the</strong> fields <strong>of</strong> operation<br />

11<br />

EU = European Union<br />

12<br />

FP6 = Sixth Framework Programme<br />

13<br />

EGNOS = European Geostationary Navigation Overlay<br />

System<br />

14<br />

RIMS = Ranging and Integrity Moni<strong>to</strong>ring Station

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