Constarium
← Search

Data · collection

CTD Data collected by FIMR since 1977

Listed in NASA Earthdata CMR

The data set comprises the CTD observations made by the FIMR on R/V Aranda cruises since 1977 and CTD observations made by Finnish Coast Guard on P/S Merikarhu at a fixed staton in the Gulf of Finland since 1999.

Description

Nearly all the observations are from the Baltic Sea, mostly from the Gulf of Bothnia, the Gulf of Finland and from the northern Baltic Proper. Outside the Baltic Sea data set contains CTD data from cruises to the Weddell Sea and to the Denmark Strait.

The amount of CTD stations per year has varied between 500 and 1500. The measurement interval of the present CTD sondes is some centimetres, older sonde (used in years 1977-1985) had the interval of some tens centimetres. The small 'hang alone' SIS sonde have been used as an extra sonde on R/V Aranda and on a few cruises made with other vessels.

Read the rest (2 more)

Every CTD down-cast has been stored as one file or two files which include besides the proper CTD data (depth series per station) also the date, time and the position information. The data from the year 1991 onwards have been averaged in one dbar interval. The data of SBE sondes have been processed with Sea-Bird's standard software.

Measured parameters: temperature, conductivity and pressure, from 1998 also oxygen; Calculated parameters: salinity, density. CTD sondes: Plessey 9040 (1977-1985), Mk-III (1986- 1997), SBE 911 plus (1994-), SIS plus 500 (1988-), Seacat SBE19 (P/S Merikarhu 1999- ).

Links

Documentation and papers

Catalogue records · 2

Topics

Provenance · 1 source records, 14 field assertions
SourceKeyLast seenRaw
NASA Earthdata CMRC1214621261-SCIOPS12 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[instrument].gcmd_instrument:ctdsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/oceans/ocean-chemistry/oxygensource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/oceans/ocean-pressure/water-pressuresource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/oceans/ocean-temperature/water-temperaturesource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/oceans/salinity-density/conductivitysource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/oceans/salinity-density/densitysource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/oceans/salinity-density/salinitysource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[platform].gcmd_platform:shipssource · NASA CMRconnector:nasa_cmr@1.0.0
descriptionsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/Abstract
spatialsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/SpatialExtent
temporalsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/TemporalExtents
titlesource · NASA CMRconnector:nasa_cmr@1.0.0/umm/EntryTitle
version_labelsource · NASA CMRconnector:nasa_cmr@1.0.0