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FES99 og GOT00.2 tidvassmodellane i samband med K0-prosjektet

I denne rapporten er to nye globale tidvassmodellar (FES99 og GOT00.2) vurdert for eventuell bruk i det vidare arbeidet med K0-flata.

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Download this file (GEO03-5Fleiretidvassmodellar.pdf)FES99/GOT00.2 tidvassmodellane269 Kb

 

Test of 1-minute sampling of water level

This report shows that the filtering and sampling scheme in the MDS stations after the modernisation is not ideal.

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Download this file (DAF-05-1Testof1-minutesamplingofwaterlevel.pdf)Test of 1-minute sampling of water level 1421 Kb

   

Water level observations from southwestern coast of Norway (Hafrsfjorden-Farsund)

This report presents analyses and results of water level observations from tide gauges and stations along the southwestern coast of Norway.

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Download this file (Water_level_observations_southwestern_coast_of_Norway.pdf)Water level observations southwest Norway7847 Kb

 

Test of 30-seconds sampling of water level and decimating to 10-minutes data

This report shows that the filtering and sampling scheme in the MDS stations after the modernisation is not ideal.

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Download this file (Report-06Testof30-secondssamplingofwaterlevelanddecimatingto10-minutesdata.pdf)Test of 30-seconds sampling 495 Kb

   

Valg av metode for beregning av sjøkartnull og Z0 for norske havområder

I denne rapporten har vi sett på en del metoder for hvordan vi kan bestemme sjøkartnulls beliggenhet relativt middelvann for norske havområder


 

Norwegian Sea Level Statistics Frequency and Cumulative Distribution

This report presents frequency and cumulative distributions of observed sea levels and residuals (weather effects).

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Download this file (DAF06-2_Norwegian_Sea_Level_Statistics.pdf)Norwegian Sea Level Statistics2743 Kb

   

Use of Butterworth Filter for lowpass filtering of water level data in NHS

The Norwegian Hydrographic Service uses two Butterworth lowpass (LP) filters for filtering of water level data. These operate on data with 10-minutes sampling period and different cut-off frequency1.

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Download this file (Notat04-3UseofButterworthfilterforlowpassfilteringofwaterleveldatainNHS.pdf)Use of Butterworth Filter232 Kb

 

Samanlikningar av tidvassmodellar i arbeidet med K0-flata

I samband med stadig meir nøyaktig vertikal posisjon for sjømålingsfarty kan det i framtida vere mogeleg å sjømåle utan å vere avhengige av vannstandsmålingar.

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Download this file (GEO03-2SamanlikningaravtidvassmodellariarbeidetmedK0-flata.pdf)Samanlikningar av tidvassmodellar434 Kb