267aaf37-c3a8-406a-8492-761953fb13dd Aarhus University, Department of Bioscience, Marine Ecology Roskilde 399 Frederiksborgvej P.O. Box 358 Roskilde DK-4000 Denmark http://bios.au.dk/en/ web site 2026-04-02T00:00:00 ISO 19115:2003/19139 1.0 WGS 1984 CTD, Disko west cruise 2009 2009-09-22 2019-05-24 267aaf37-c3a8-406a-8492-761953fb13dd In September 2009, a ship-based study was carried out in the Davis Strait/southern Baffin Bay along a range of transects covering the area between the west coast of Greenland and Baffin Island (Canada) from 68-72º N . Water temperature, salinity and in situ chlorophyll a (chl. a) measured in 0-500 m depths followed the general hydrographical characteristics of the late summer situation. Surface chl. a concentration based on remote sensing satellite data from September 2009 supported these findings. Measurement of in situ chl. a concentrations revealed a maximum in the subsurface (30-50 m water depths). Thus, spatial distribution of the phytoplankton bloom was often restricted to subsurface rather than the surface waters and therefore not detected by the remote sensing during September. Aarhus University,Danish Centre for Environment and Energy Frederiksborgvej 399 Postboks 358 Roskilde DK_4000 Denmark http://dce.au.dk/en/ web site Aarhus University, Department of Bioscience, Marine Ecology Roskilde 399 Frederiksborgvej P.O. Box 358 Roskilde DK-4000 Denmark http://bios.au.dk/en/ web site Oceanographic geographical features GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme Arctic Ocean Baffin Bay Davis Strait SeaVoX salt and fresh water body gazetteer 2024-01-15 SeaVoX salt and fresh water body gazetteer Other physical oceanographic measurements Water column temperature and salinity SeaDataNet Agreed Parameter Groups 2023-07-04 SeaDataNet Agreed Parameter Groups fluorometers CTD SeaDataNet device categories 2024-01-16 SeaDataNet device categories Sea-Bird SBE 911plus CTD Seapoint chlorophyll fluorometer SeaVoX Device Catalogue 2024-01-29 SeaVoX Device Catalogue Variable fluorescence parameters Chlorophyll pigment concentrations in water bodies Salinity of the water column Temperature of the water column SeaDataNet Parameter Discovery Vocabulary 2023-12-12 SeaDataNet Parameter Discovery Vocabulary CRUISE SUMMARY REPORT INVENTORY (CSR) 2023-10-02 research vessel SeaVoX Platform Categories 2024-01-16 SeaVoX Platform Categories ICES Platform Codes 2024-01-16 ICES Platform Codes Vertical and horizontal distribution of zooplankton and polar cod in southern Baffin Bay (66–71degrees N) in September 2009 EUROPEAN DIRECTORY OF MARINE ENVIRONMENTAL RESEARCH PROJECTS (EDMERP) 2020-06-05 Delimited Text or Plaintext MEDIN data format categories 2024-01-29 MEDIN data format categories World Register of Marine Species (WORMS) 2024-02-07 SeaDataNet Measurement Periodicity Categories 2024-01-29 SeaDataNet Measurement Periodicity Categories BODC-approved data storage units (Spatial Unit) 2023-10-12 BODC-approved data storage units (Spatial Unit) BODC-approved data storage units (Vertical Unit) 2023-10-12 BODC-approved data storage units (Vertical Unit) no limitations to public access Conditions for access and use apply ODC-By Oceans 2009-09-07 2009-09-22 -70.849438491341 -50.458813491341 66.3 71 Delimited 1 Text or Plaintext 1 https://cloud.emodnet-ingestion.eu/index.php/s/ZFcv057v553nJ0t WWW:DOWNLOAD-1.0-http--download WWW:LINK-1.0-http--link COMMISSION REGULATION (EC) No 1205/2008 of 3 December 2008 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards metadata 2010-12-08 See the referenced specification false Corrigendum to INSPIRE Metadata Regulation published in the Official Journal of the European Union, L 328, page 83 2010-12-08 See the referenced specification false Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 See the referenced specification false On the basis of the CTD stations, five transects cutting across the main bathymetrical and hydrographical structures of the study area were defined (Fig. 1) and interpolated for salinity, temperature, and fluorescence, respectively (Fig. 2). Transects 1-4 cut across the entire study area, starting in CSW, moving through DB, and ending in GSW. Transect 5 is located mainly in GSW, with only one station in DB (Fig. 1). All transects were characterized by relatively warm water (2.2 °C) in the upper water column (0-50 m) (Fig. 2a, d, g, j, m). In CSW, the intermediate water body (50-250 m) consisted of relatively cold water (-1.4 °C), which stretched out eastwards into the upper part of the intermediate water body in DB. In GSW, the intermediate water body was relatively warm (2.3 °C). The deeper part of the water body (250–500 m) was relatively warm in all three areas (2.1 °C) with a gradual increase in temperature from CSW toward GSW. On all transects, the salinity ranged from 30.5 to 34.5, increasing with depth. The salinity was in general lowest in the surface waters (0–50 m) of the CSW and highest at depth (300–500 m) in the GSW (Fig. 2b, e, h, k, n), the latter as a result of the inflow of warm Atlantic water. At any particular depth, salinity always increased toward east. Fluorescent material was only found in the upper 50 m of the water column with slightly higher values in CSW and GSW(0.9) than inDB(0.6) (Fig. 2c, f, i, l, o). St. 1 located on the shallow St. Hellefiskebanke (GSW), which is renowned for its primary production, had the highest fluorescence levels recorded in the study area. However, if st. 1 is excluded, there were significantly higher levels of fluorescent material in CSW than in GSW (p[0.0001, t test).|Between September 7 and September 22, 2009, a total of 45 stations were sampled from the research vessel R/V Bjarni Sæmundsson (Marine Research Institute, Reykjavik, Iceland). Sampling was carried out during full 24-h cycles, every 4–6 h. The survey was initiated at Sisimiut (Southwest Greenland) and covered a route of 1,485 nautical miles (nmi). The order of the station numbers corresponds to the chronological sequence of the survey. The survey route transects the main bathymetric and hydrographical features described above. For the ease of presentation, the study area was subdivided into three areas: Canadian Shelf Waters (CSWs), DB, and Greenland Shelf Waters (GSWs). Stations shallower than 700 m are assigned to CSW on the Canadian side and to GSW on the Greenland side, whereas stations deeper than 700 m are defined as DB. One exception to this rule is station st. 37, which is assigned to DB even though it is shallower than 700 m. This was done because it is located in the central part of the study area far off the regular shelves and surrounded by much deeper water. It presumably represents a very localized peak in DB, which has not before been captured in bathymetry data collections (Jakobsson et al. 2012). At all 45 stations, vertical profiles of temperature, salinity and fluorescence were obtained from the surface down to 500 m using a SBE 9 plus CTD (SeaBird Electronics) equipped with a Seapoint chlorophyll fluorometer (Seapoint Sensors Inc). Due to an unfortunate loss of samples, the fluorescence readings could not be calibrated to the study area and are therefore only used as a proxy for the relative differences in Chlorophyll-a concentration between stations.