European Directory of Marine Environmental Data (EDMED)

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General
Data set name

The infuence of sampling frequency on the study of time variations of hydrographic parameters (1974-1977)

Data holding centreSwedish Meteorological and Hydrological Institute
CountrySweden  Sweden
Time period1974-08 to 1977-11
OngoingNo
Geographical area

Kattegat

Observations 
Parameters

Air pressure; Air temperature; Wind strength and direction; Salinity of the water column; Dissolved total and organic nitrogen concentrations in the water column; Temperature of the water column

Description 
Summary

The hydrographic conditions in the northern Kattegat were investigated in a 5 year project study called 'The Baltic Entrance Project: the GF Section'. In this study two sampling series at the same location are compared. The sampling frequencies differ by a factor 15. The impact on mean values of salinity and total phosphorus is discussed. The high frequency data are thinned and re-processed. Simulations of low frequency sampling are performed using high frequency data. The choice of sampling occasions and sampling frequency is important since it will influence both short and long term values, especially of surface salinity. The data has been quality controlled.

OriginatorsSwedish Meteorological and Hydrological Institute
References

Anon (1979) MEDDELANDE FRAN HAVSFISKELABORATORIET LYSEKIL nr 244,, Hydografiska avdelningen Goteborg.

Data web sitehttp://www.smhi.se
Availability 
OrganisationSwedish Meteorological and Hydrological Institute
AvailabilityUnrestricted
ContactPatrik Stromberg (Shark data manager)
Address

Swedish Meteorological and Hydrological Institute
Folkborgsvagen 1
Norrkoping

SE-601 76
Sweden

Telephone+46-31-751 89 75
Facsimile+46-(0)11-495 80 01
Emailshark@smhi.se
Administration 
Collating centreSwedish Meteorological and Hydrological Institute
Local identifier18001005
Global identifier32
Last revised2015-08-25