| Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
|---|---|---|---|---|
| Atair | 067I041-1 | 22.07.2025 - 14.08.2025 | BLMP+ NSSS - BSH NORTH SEA SUMMER SURVEY |
North Sea |
| Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
|---|---|---|---|---|---|
| Kieke Dagmar | Bundesamt fuer Seeschifffahrt und Hydrographie | Bremerhaven | Aberdeen |
Ziel der Reise / Objectives of Cruise:
Cruise 067I041-1 with R/V ATAIR focused on investigating the oceanographic state of the Greater North Sea in the summer of 2025. In addition to physical oceanographic observations further measurements aimed at determining the large-scale distribution regarding microplastics, trace metals, dissolved inorganic carbon (DIC), alkalinity, water tansparency, plankton, chlorophyll and selected radionuclides in the surface layer or water column of the North Sea. In total, 4 surface drifters were deployed with the intention to reveal regional details of the oceanic current field. Like previous North Sea Summer Surveys (NSSS) of BSH, the track of cruise 067I041-1followed seven zonal coast-to-coast sections spanning the North Sea between 54? and 60?N. Additional stations were carried out at the northern entrance to the English Channel south of 54?N and northwest of the Orkney Islands. The survey followed a grid of fixed standard station locations aiming at obtaining vertical CTD profiles and water samples. Underway measurement systems served to obtain near-surface information, basically for oceanic velocity, temperature, salinity, fluorescence, turbidity, and microplastic concentrations. Water and air sampling for pesticide analysis was carried out on selected transects and stations in the northern half of the North Sea.
Messungen / Measurements
| Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
|---|---|---|---|---|---|---|
| BSH | Harms Natalie | 22 | day(s) | B02 Phytoplankton pigments (e.g. chlorophyll, fluorescence) |
underway measurements of fluorescence and turbidity with a dual-wavelength sensor of type WetLabECO | no |
| BSH | Harms Natalie | 69 | stations | B02 Phytoplankton pigments (e.g. chlorophyll, fluorescence) |
water sampling on daylight stations for laboratory analysis of chlorophyll-a for the sake of satellite sensor validation | no |
| BSH | Harms Natalie | 69 | stations | B08 Phytoplankton |
water sampling on daylight stations for laboratory analysis of phytoplankton for the sake of satellite sensor validation | no |
| UOLD | Badewien Thomas | 4 | deployment | D05 Drifters (number) |
deployment of surface drifters equipped with a GPS tracker | no |
| BSH | Kollner Manuela | 22 | day(s) | D71 Current profiler (e.g. ADCP) |
Underway measurements of the oceanic velocity field in the upper water column obtained from a vessel-mounted Acoustic Doppler Current Profiler (vmADCP) of type "TRDI Ocean Surveyor" operating at 150 kHz | no |
| BSH | Kieke Dagmar | 111 | stations | H00 Stations |
- | yes |
| BSH | Kieke Dagmar | 21 | stations | H09 Water bottle stations |
water sampling for laboratory analysis of water density | no |
| BSH | Kieke Dagmar | 113 | stations | H09 Water bottle stations |
water sampling for Autosal analysis of salinity in the laboratory for the sake of verifying the performance of the conductivity sensors and resulting salinity data | no |
| BSH | Kieke Dagmar | 114 | stations | H10 CTD-Stations |
CTD-system of type SBE 9/11plus with two pairs of T/C sensors and additional sensors for dissolved oxygen (SBE43) and fluorescence/turbidity (WetLab Eco), all attached to a carousel water sampler of type SBE32 carrying 5-6 Niskin bottles and one GoFlo bottle (near-realtime and delayed mode data) | yes |
| BSH | Kollner Manuela | 114 | stations | H10 CTD-Stations |
- | yes |
| BSH | Kieke Dagmar | 22 | day(s) | H11 Sub-surface measurements underway (T, S) |
underway measurements with a thermosalinograph of type SBE21 Seacat with an external temperature sensor of type SBE38 | no |
| BSH | Harms Natalie | 69 | stations | H17 Optics (e.g. underwater light levels) |
determination of the maximum depth of water column transparency (Secchi depth) by means of a Secchi-disc (daylight stations only) | no |
| HEREON | Thomas Helmuth | 104 | stations | H27 Alkalinity |
water sampling for laboratory analysis of alkalinity | no |
| BSH | Brockmeyer Berit | 2 | stations | H31 Radioactivity |
water sampling of the surface waters for laboratory analysis of selected radionclides (cesium-134) | no |
| BSH | Brockmeyer Berit | 23 | stations | H31 Radioactivity |
water sampling of the surface waters for laboratory analysis of selected radionuclides (tritium and strontium-90) | no |
| BSH | Brockmeyer Berit | 44 | stations | H31 Radioactivity |
water sampling of the surface waters for laboratory analysis of selected radionuclides (cesium-137) | no |
| HEREON | Thomas Helmuth | 104 | stations | H74 Carbon dioxide |
water sampling for laboratory analysis of dissolved inorganic carbon (DIC) | no |
| BSH | Biermann Malte | 1 | n miles | H80 Other physical measurements |
Underway measurements udring the whole trip such as coordinates, depth, meteorological parameter and so on | yes |
| HEREON | Thomas Helmuth | 104 | stations | H90 Other chemical oceanographic measurements |
water sampling for laboratory analysis of nutrients | no |
| BSH | Kieke Dagmar | 22 | day(s) | M06 Routine standard measurements |
Routine standard underway measurements during the whole cruise such as position, water depth, meteorological parameters etc | no |
| HEREON | Profrock Daniel | 105 | stations | P02 Trace metals |
water sampling for laboratory analysis of trace metals | no |
| BSH | Brockmeyer Berit | 5 | tracks | P90 Other contaminant measurements |
air sampling for pesticides concentrations | no |
| BSH | Brockmeyer Berit | 6 | stations | P90 Other contaminant measurements |
water sampling for pesticides concentrations | no |
| HEREON | Profrock Daniel | 13 | tracks | P90 Other contaminant measurements |
underway filtration of surface waters for microplastics anaylsis in the laboratory with the Geesthacht Inert Microplastic Fractionator (GIMPF) | no |