de.pangaea.dataset993938 und dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2026-05-21T08:19:06Z https://doi.pangaea.de/10.1594/PANGAEA.993938 <gco:CharacterString>Snow and ice surface near-infrared (NIR) images collected during RV POLARSTERN cruise PS144</gco:CharacterString> 2026-05-21T08:19:04 publication Rückert, Janna Elisabeth
janna.rueckert@uni-bremen.de
https://orcid.org/0000-0001-9885-6576 information author Bühler, Linnu
l.buehler@uni-koeln.de
author Mewes, Lars-Hendrik
lars.mewes@slf.ch
author Risse, Nils
nils.risse@ecmwf.int
https://orcid.org/0000-0002-7267-9353 information author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital During the Polarstern cruise PS144 from August 2024 to October 2024 in the central Arctic Ocean snow and ice surface near-infrared images were collected on 10 ice stations. The device, called SnowImager (snowimager.ch), consists of a near infrared illumination system and two cameras to capture the reflected light while the housing acts as a light shield. The width and height of the inside of the box is 30 cm x 40 cm. The NIR camera records images at two dedicated wavelenghts, 850 nm and 940 nm. The specific surface area and density of the snow can be derived from these reflectance images. Calibration images were taken at the start of each station. We performed two types of measurements: Either we took images of the snow/surface scattering layer surface along transects, or, if the snow was sufficiently deep, we used the SnowImager in the excavated snowpit walls to record the vertical (in addition to the horizontal) spatial variability. Here, the NIR images also allow identification of snow layers with different snow grains (i.e., specific surface areas). All measurements were done within the vicinity of the footprint of the onboard microwave radiometers installed for the VAMPIRE project (that is, in about 25 m distance to the port bow of Polarstern mostly measured along T-shaped transects with side lengths of 5 to 7 meters). The datasets consists of the raw measurements (the photos as .dng files) and databases per ice station containing the metadata for the photos. For example, the location along a transect for each image is described in these databases. The databases are designed to be used with the appropriate SnowImager software (https://code.wsl.ch/snow-physics/snowimagerpro) in order to analyze the photos (e.g., to calculate reflectances or the specific surface area). For more information about these measurements the user is referred to Chapter 6.4 of the cruise report. completed Rückert, Janna Elisabeth
janna.rueckert@uni-bremen.de
https://orcid.org/0000-0001-9885-6576 information principalInvestigator Arctic near-infrared snow theme <gco:CharacterString>PANGAEA Keyword List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact AC3 Arctic Amplification theme <gco:CharacterString>PANGAEA Project List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation 42.692716 -150.666993 84.511697 89.944844 2024-08-16T11:21:02 2024-09-26T20:53:07 Event label thematicClassification CSV text file thematicClassification CSV text file (File Size) physicalMeasurement Bytes Bytes Image thematicClassification Image (File Size) physicalMeasurement Bytes Bytes text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.993938?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: PS144_7-1 * LATITUDE START: 85.063609 * LONGITUDE START: 42.977494 * LATITUDE END: 85.054221 * LONGITUDE END: 42.692716 * DATE/TIME START: 2024-08-16T11:21:02 * DATE/TIME END: 2024-08-16T20:50:27 * ELEVATION START: -3927.5 m * ELEVATION END: -3929.2 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/8891 * CAMPAIGN: PS144 * BASIS: Polarstern * METHOD/DEVICE: Ice station bad view 2024-08-16T11:21:02 EVENT LABEL: PS144_23-1 * LATITUDE: 84.511697 * LONGITUDE: 115.392214 * DATE/TIME: 2024-08-29T12:32:42 * ELEVATION: -4141.7 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/8891 * CAMPAIGN: PS144 * BASIS: Polarstern * METHOD/DEVICE: Ice station 2024-08-29T12:32:42 EVENT LABEL: PS144_42-1 * LATITUDE START: 84.840295 * LONGITUDE START: 128.609957 * LATITUDE END: 84.806416 * LONGITUDE END: 128.908747 * DATE/TIME START: 2024-09-02T20:40:26 * DATE/TIME END: 2024-09-03T01:02:00 * ELEVATION START: -4353.2 m * ELEVATION END: -4349.6 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/8891 * CAMPAIGN: PS144 * BASIS: Polarstern * METHOD/DEVICE: Ice station 2024-09-02T20:40:26 EVENT LABEL: PS144_50-1 * LATITUDE START: 85.032701 * LONGITUDE START: 139.446069 * LATITUDE END: 85.040151 * LONGITUDE END: 140.085356 * DATE/TIME START: 2024-09-04T20:30:28 * DATE/TIME END: 2024-09-05T19:01:01 * ELEVATION START: -3933.0 m * ELEVATION END: -3842.0 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/8891 * CAMPAIGN: PS144 * BASIS: Polarstern * METHOD/DEVICE: Ice station 2024-09-04T20:30:28 EVENT LABEL: PS144_67-1 * LATITUDE START: 84.960260 * LONGITUDE START: 161.871079 * LATITUDE END: 84.937649 * LONGITUDE END: 162.203178 * DATE/TIME START: 2024-09-08T05:24:00 * DATE/TIME END: 2024-09-08T23:17:32 * ELEVATION START: -3560.5 m * ELEVATION END: -3558.9 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/8891 * CAMPAIGN: PS144 * BASIS: Polarstern * METHOD/DEVICE: Ice station 2024-09-08T05:24:00 EVENT LABEL: PS144_80-1 * LATITUDE START: 84.922594 * LONGITUDE START: 179.577229 * LATITUDE END: 84.960123 * LONGITUDE END: 179.573395 * DATE/TIME START: 2024-09-10T20:05:00 * DATE/TIME END: 2024-09-11T06:56:22 * ELEVATION START: -1980.1 m * ELEVATION END: -2187.0 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/8891 * CAMPAIGN: PS144 * BASIS: Polarstern * METHOD/DEVICE: Ice station 2024-09-10T20:05:00 EVENT LABEL: PS144_85-1 * LATITUDE START: 87.515029 * LONGITUDE START: 179.097150 * LATITUDE END: 87.471204 * LONGITUDE END: 178.035483 * DATE/TIME START: 2024-09-12T19:07:15 * DATE/TIME END: 2024-09-13T19:57:16 * ELEVATION START: -3995.3 m * ELEVATION END: -3994.7 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/8891 * CAMPAIGN: PS144 * BASIS: Polarstern * METHOD/DEVICE: Ice station 2024-09-12T19:07:15 EVENT LABEL: PS144_109-1 * LATITUDE START: 89.944844 * LONGITUDE START: -150.666993 * LATITUDE END: 89.943362 * LONGITUDE END: 80.374813 * DATE/TIME START: 2024-09-18T19:30:30 * DATE/TIME END: 2024-09-19T23:46:42 * ELEVATION START: -4263.8 m * ELEVATION END: -4281.8 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/8891 * CAMPAIGN: PS144 * BASIS: Polarstern * METHOD/DEVICE: Ice station 2024-09-18T19:30:30 EVENT LABEL: PS144_123-2 * LATITUDE START: 88.072107 * LONGITUDE START: 59.715273 * LATITUDE END: 88.058668 * LONGITUDE END: 59.930244 * DATE/TIME START: 2024-09-23T05:45:13 * DATE/TIME END: 2024-09-23T14:44:47 * ELEVATION START: -4416.3 m * ELEVATION END: -4417.6 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/8891 * CAMPAIGN: PS144 * BASIS: Polarstern * METHOD/DEVICE: Ice station 2024-09-23T05:45:13 EVENT LABEL: PS144_134-1 * LATITUDE START: 86.981196 * LONGITUDE START: 58.698141 * LATITUDE END: 87.035199 * LONGITUDE END: 55.842903 * DATE/TIME START: 2024-09-25T04:45:19 * DATE/TIME END: 2024-09-26T20:53:07 * ELEVATION START: -4639.8 m * ELEVATION END: -4743.9 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/8891 * CAMPAIGN: PS144 * BASIS: Polarstern * METHOD/DEVICE: Ice station 2024-09-25T04:45:19 Related to <gco:CharacterString>Water vapor, mixed-phase clouds, precipitation and sea ice emissivity over the Central Arctic Ocean (VAMPIRE-1): remote sensing and in-situ measurements suite during POLARSTERN cruise PS144 (ArcWatch-2)</gco:CharacterString> 2026-01-01 publication https://doi.org/10.1594/PANGAEA.990496 Bühler, Linnu
l.buehler@uni-koeln.de
author Rückert, Janna Elisabeth
janna.rueckert@uni-bremen.de
https://orcid.org/0000-0001-9885-6576 information author Walbröl, Andreas
a.walbroel@uni-koeln.de
https://orcid.org/0000-0003-2603-2724 information author Mech, Mario
mario.mech@uni-koeln.de
https://orcid.org/0000-0001-6229-9616 information author Risse, Nils
nils.risse@ecmwf.int
https://orcid.org/0000-0002-7267-9353 information author Krobot, Pavel
pkrobot@uni-koeln.de
author Ebell, Kerstin
kebell@meteo.uni-koeln.de
https://orcid.org/0000-0002-0042-4968 information author Schnitt, Sabrina
s.schnitt@uni-koeln.de
author Spreen, Gunnar
gunnar.spreen@uni-bremen.de
https://orcid.org/0000-0003-0165-8448 information author documentDigital Related to <gco:CharacterString>The Expedition PS144 of the Research Vessel POLARSTERN to the Arctic Ocean in 2023 /2024</gco:CharacterString> 2025-01-01 publication https://doi.org/10.57738/BZPM_0794_2025 Rabe, Benjamin
Benjamin.Rabe@awi.de
https://orcid.org/0000-0001-5794-9856 information author Geibert, Walter
walter.geibert@awi.de
https://orcid.org/0000-0001-8646-2334 information author documentDigital Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research 794 312 pp