PANGAEA_993859
Sea ice density and salinity profiles measured during RV POLARSTERN cruise PS149
Rückert, Janna Elisabeth; Brechtelsbauer, Stefanie; Bühler, Linnu; Menke, Margret; Walbröl, Andreas
Sea ice density and salinity profiles measured during RV POLARSTERN cruise PS149
2026-06-04
PANGAEA
Dataset
https://doi.pangaea.de/10.1594/PANGAEA.993859
Investigator
Janna Elisabeth
Rückert
janna.rueckert@uni-bremen.de
Earth Science
Event label
Core
DATE/TIME
LATITUDE
LONGITUDE
Station label
Time in days
Location
Sea ice thickness
DEPTH, ice/snow
Depth, ice/snow, top/minimum
Depth, ice/snow, bottom/maximum
Sea ice salinity
Sea ice conductivity
Density, ice
Freeboard
Snow depth
Surface scattering layer, height
Comment
Observer
geoscientificInformation
Arctic
CTD/Rosette
density profile
Hand net
Ice station
Ice Station 1a
Ice Station 1b
Ice Station 1c
Ice Station 2a
Ice Station 2b
Ice Station 2c
Ice Station 2d
Ice Station 3a
Ice Station 3b
Ice Station 3c
Ice Station 3d
Multiple opening/closing net
PS149
PS149_13-1
PS149_13-2
PS149_13-3
PS149_16-1
PS149_16-2
PS149_18-1
PS149_18-2
PS149_18-3
PS149_21-1
PS149_21-2
PS149_21-3
PS149_25-1
PS149_25-2
PS149_25-3
PS149_30-1
PS149_30-2
PS149_30-3
PS149_32-1
PS149_32-2
PS149_36-1
PS149_36-2
PS149_36-3
PS149_41-1
PS149_41-2
PS149_41-3
PS149_46-1
PS149_46-2
PS149_47-1
PS149_47-2
salinity profile
sea ice core
Sea ice density
sea ice salinity
Calculated
Salinometer, Greisinger, G1410 [handheld]
Corrected, see reference(s)
Ruler stick
Polarstern
2025-07-09
2025-08-27
Complete
82.41135
84.94432
-17.9022
33.9981
0.005 m (DEPTH, ice/snow)
2.64 m (DEPTH, ice/snow)
AC3
Arctic Amplification
unrestricted
CC-BY-4.0: Creative Commons Attribution 4.0 International
English
PANGAEA
Data Publisher for Earth & Environmental Science
https://www.pangaea.de/
Data Center Contact
Michael
Diepenbroek
info@pangaea.de
Leobener Str.
Bremen
Bremen
28359
Germany
online
6339 data points
text/tab-separated-values
Bühler, Linnu; Rückert, Janna Elisabeth; Walbröl, Andreas; Mech, Mario; Krobot, Pavel; Ebell, Kerstin; Schnitt, Sabrina; Spreen, Gunnar (2026): Water vapor, mixed-phase clouds, precipitation and sea ice emissivity over the Central Arctic Ocean (VAMPIRE-2): remote sensing and in-situ measurements suite during POLARSTERN cruise PS149 (CONTRASTS) [dataset bibliography]. PANGAEA, https://doi.org/10.1594/PANGAEA.990497
Nicolaus, Marcel (2026): The Expedition PS149 of the Research Vessel POLARSTERN to the Arctic Ocean in 2025. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 808, 382 pp, https://doi.org/10.57738/BZPM_0808_2026
Rückert, Janna Elisabeth (2026): Salinometer: Instrument intercomparison and bias correction for PS149 datasets. https://download.pangaea.de/reference/139683/attachments/PS144_Salinometer_instrument_intercomparison_biascorrection.pdf
During the Polarstern cruise PS149 from July 2025 to August 2025 in the Atlantic part of the Arctic Ocean, ice core samples were obtained with a 9 cm Kovacs corer during 30 ice stations. This dataset contains vertical density and salinity profiles obtained by cutting the core in 5 cm intervals (for the upper 20 cm) and 10 cm intervals for the remaining part. The samples were weighed on the ice. Together with the known volume, densities are calculated for each sample. The samples were taken to the ship, melted and their salinity was measured using a Greisinger G1410 salinometer (measuring salinity and conductivity). An intercomparison of the salinometer with two others revealed a bias, which is described in the attached PDF and corrected for in the columns "Sea ice salinity corrected [PSU]" and "Sea ice conductivity corrected [S/m]". The measured total ice, surface scattering layer (SSL) and snow thicknesses as well as the ice freeboard (distance from sea level to ice surface, the total freeboard is derived by adding the snow thickness) are included in the dataset. Note that the ice thickness and freeboard were measured in the cored hole using an ice thickness gauge. Because of that and additional uncertainties due to the cutting of the core, the summed length of the measured ice core samples and the ice thickness may differ by up to a few cm. Note that the location (latitude and longitude in the dataset) was usually measured at the start of all measurements performed by the group, while the actual coring occurred up to a few hours later and does not account for sea ice drift. The ice cores are identifiable by the column "unique core number", which is the same as used in the temperature profile dataset. In total, there are 29 cores. Usually the ice cores were taken within the footprint of the onboard microwave radiometers installed for the VAMPIRE project (t (https://doi.org/10.1594/PANGAEA.990497)) (that is, in about 25 m distance to the port bow of Polarstern), except for the ice station with event label PS149_30-1, specified further in the "Location" column. The ice stations lasted two to three days (day at station is included in the dataset), and the floes (named '1', '2', and '3') were revisited. The name of the ice floe contained in the dataset gives the number of the visit (indicated by 'a','b', 'c', and 'd') and the floe name (e.g., '2a' refers to the the first visit of floe 2). For more information of these measurements the user is referred to Chapter 3 of the cruise report. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.993859"!
http://commons.wikimedia.org/w/index.php?title=Image:Ice-floe_params_hg.png
Freeboard
http://commons.wikimedia.org/wiki/File:Ice-floe_params_hg.png
Sea ice thickness
http://en.wikipedia.org/wiki/ISO_6709
LATITUDE
http://en.wikipedia.org/wiki/ISO_6709
LONGITUDE
http://en.wikipedia.org/wiki/ISO_8601
DATE/TIME
https://doi.org/10.17815/jlsrf-3-163
Polarstern
https://doi.org/10.57738/BZPM_0808_2026
The Expedition PS149 of the Research Vessel POLARSTERN to the Arctic Ocean in 2025
https://doi.pangaea.de/10.1594/PANGAEA.990497
Water vapor, mixed-phase clouds, precipitation and sea ice emissivity over the Central Arctic Ocean (VAMPIRE-2): remote sensing and in-situ measurements suite during POLARSTERN cruise PS149 (CONTRASTS)
https://gepris.dfg.de/project/268020496
AC3
DIF
9.4
2026-06-04
2026-07-15