de.pangaea.dataset995759 und dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2026-08-08T03:39:17Z https://doi.pangaea.de/10.1594/PANGAEA.995759 <gco:CharacterString>Hyperspectral camera raw data (SPECIM_IQ_01) during the RV Polarstern PS149 CONTRASTS cruise (July-August 2025)</gco:CharacterString> 2026-07-10T09:50:25 publication https://doi.org/10.1594/PANGAEA.995759 Ringel, Maximilian Harald
mringel@uni-bremen.de
https://orcid.org/0000-0002-0600-135X information author Spreen, Gunnar
gunnar.spreen@uni-bremen.de
https://orcid.org/0000-0003-0165-8448 information author Huntemann, Marcus
marcus.huntemann@uni-bremen.de
author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital The data consists of 146 hyperspectral images 512x512 pixels in 204 bands in the wavengths range between 400 – 1000 nm with 2.5 nm step, obtained with the SPECIM IQ hyperspectral camera. The images contain bare ice, snow and melt pond surfaces and are taken with an incidence angle of about 40-50°. See the referenced cruise report for details of the used measurement set-up. The images have been either taken along straight transects along measurement tapes in regular distances of 20 meters or at specific locations at which other co-located measurements have been conducted. For the latter ones the images have been taken with an incidence angles of 0° and labeled with _coord in their location names. The data are raw data in the original SPECIM IQ format. Each data record is a folder (compressed as one file) readable by the Specim IQ software, which is downloadable free of charge from the manufacturer (Specim) after registration. Within the field of view of each scene, there is a white reference plate, which can be used for image calibration to obtain the hemispheric-directional surface reflectances. Out-of-focus white reference still can be used for calibration as the spectral properties are not affected. We provide some additional parameters to each image if available. Further hyperspectral images taken during the PS149 CONTRASTS expedition, which only cover melt pond surfaces using a 0° incidence angle, are available in a seperate dataset. completed Ringel, Maximilian Harald
mringel@uni-bremen.de
https://orcid.org/0000-0002-0600-135X information principalInvestigator Arctic Arctic Ocean CONTRASTS CONTRASTS expedition Hyperspectral data hyperspectral imaging hyperspectral reflectance melt ponds Polarstern Sea ice 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 -17.88583951 83.75642467 82.43030105 84.81243652 2025-07-12T09:11:17 2025-08-27T09:23:31 Event label thematicClassification DATE/TIME thematicClassification Hyperspectral camera Specim IQ LATITUDE thematicClassification Hyperspectral camera Specim IQ LONGITUDE thematicClassification Hyperspectral camera Specim IQ Identification thematicClassification Hyperspectral camera Specim IQ; filename of the corresponding hyperspectral image taken by the SpecimIQ camera. Image thematicClassification Hyperspectral camera Specim IQ Image (File Size) physicalMeasurement Hyperspectral camera Specim IQ Bytes Bytes Ice floe description thematicClassification digit is giving the number of the floe, the letter the visit. For example, "2b" means it is the second visit of floe 2. See cruise report for more details. Location thematicClassification original name of the measurement location on the floe. These site names were chosen in the field and used in the O2A registry before the locations_unified have been defined. Location thematicClassification unified name of the measurement location on the floe. These site names are used throughout all publications related to CONTRASTS melt pond observations. Transect length physicalMeasurement Tape measure; distance along the transect. m m Azimuth physicalMeasurement Anglemeter; angle of the camera's viewing direction relative to the sun azimuthal angle. deg deg Camera height physicalMeasurement Ruler stick; height of the hyperspectral camera abvoe melt pond water surface. m m Light description thematicClassification light conditions during the image. Comment thematicClassification text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.995759?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: PS149_13-1 (Ice Station 1a) * LATITUDE START: 83.804469 * LONGITUDE START: 20.753587 * LATITUDE END: 83.856951 * LONGITUDE END: 24.252349 * DATE/TIME START: 2025-07-09T06:32:22 * DATE/TIME END: 2025-07-12T18:25:00 * ELEVATION START: -4073.9 m * ELEVATION END: -4071.5 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/8891 * CAMPAIGN: PS149 * BASIS: Polarstern * METHOD/DEVICE: Ice station # Ice Station 1a; Sea ice 1.4m thick on Gangway 2025-07-09T06:32:22 EVENT LABEL: PS149_16-1 (Ice Station 2a) * LATITUDE START: 85.022741 * LONGITUDE START: 13.512829 * LATITUDE END: 84.686618 * LONGITUDE END: 13.944513 * DATE/TIME START: 2025-07-14T12:36:36 * DATE/TIME END: 2025-07-17T17:58:01 * ELEVATION START: -3065.2 m * ELEVATION END: -3612.9 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/8891 * CAMPAIGN: PS149 * BASIS: Polarstern * METHOD/DEVICE: Ice station # Ice station 2a 2025-07-14T12:36:36 EVENT LABEL: PS149_18-1 (Ice Station 3a) * LATITUDE START: 84.482009 * LONGITUDE START: -17.876229 * LATITUDE END: 84.349051 * LONGITUDE END: -17.886025 * DATE/TIME START: 2025-07-19T17:45:41 * DATE/TIME END: 2025-07-22T18:00:00 * ELEVATION START: -3392.7 m * ELEVATION END: -3407.1 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/8891 * CAMPAIGN: PS149 * BASIS: Polarstern * METHOD/DEVICE: Ice station # Ice Station 3a 2025-07-19T17:45:41 EVENT LABEL: PS149_21-1 (Ice Station 1b) * LATITUDE START: 82.700972 * LONGITUDE START: 27.118502 * LATITUDE END: 82.489715 * LONGITUDE END: 28.417981 * DATE/TIME START: 2025-07-25T16:30:00 * DATE/TIME END: 2025-07-28T16:40:09 * ELEVATION START: -3972.5 m * ELEVATION END: -3832.2 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/8891 * CAMPAIGN: PS149 * BASIS: Polarstern * METHOD/DEVICE: Ice station # Ice Station 1b 2025-07-25T16:30:00 EVENT LABEL: PS149_25-1 (Ice Station 2b) * LATITUDE START: 83.757456 * LONGITUDE START: 15.809045 * LATITUDE END: 83.735870 * LONGITUDE END: 18.991350 * DATE/TIME START: 2025-07-30T07:00:05 * DATE/TIME END: 2025-08-01T17:31:26 * ELEVATION START: -3939.7 m * ELEVATION END: -4072.5 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/8891 * CAMPAIGN: PS149 * BASIS: Polarstern * METHOD/DEVICE: Ice station # Ice Station 2b 2025-07-30T07:00:05 EVENT LABEL: PS149_30-1 (Ice Station 3b) * LATITUDE START: 83.585557 * LONGITUDE START: -12.566417 * LATITUDE END: 83.718564 * LONGITUDE END: -11.012440 * DATE/TIME START: 2025-08-04T07:28:09 * DATE/TIME END: 2025-08-06T19:30:46 * ELEVATION START: -3922.9 m * ELEVATION END: -3947.7 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/8891 * CAMPAIGN: PS149 * BASIS: Polarstern * METHOD/DEVICE: Ice station # Ice Station 3b; Sea ice thickness: 1.70m and 2.00m 2025-08-04T07:28:09 EVENT LABEL: PS149_32-1 (Ice Station 1c) * LATITUDE START: 83.303888 * LONGITUDE START: 33.637523 * LATITUDE END: 83.326878 * LONGITUDE END: 34.147091 * DATE/TIME START: 2025-08-09T08:00:12 * DATE/TIME END: 2025-08-10T22:07:56 * ELEVATION START: -3885.5 m * ELEVATION END: -3872.4 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/8891 * CAMPAIGN: PS149 * BASIS: Polarstern * METHOD/DEVICE: Ice station # Ice Station 1c 2025-08-09T08:00:12 EVENT LABEL: PS149_36-1 (Ice Station 2c) * LATITUDE START: 84.473666 * LONGITUDE START: 22.171544 * LATITUDE END: 84.612758 * LONGITUDE END: 21.574675 * DATE/TIME START: 2025-08-12T06:52:05 * DATE/TIME END: 2025-08-14T17:22:33 * ELEVATION START: -4061.7 m * ELEVATION END: -4059.8 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/8891 * CAMPAIGN: PS149 * BASIS: Polarstern * METHOD/DEVICE: Ice station # Ice Station 2c; Min. ice thickness: 1.50m to 1.60m; end date/time missing 2025-08-12T06:52:05 EVENT LABEL: PS149_41-1 (Ice Station 3c) * LATITUDE START: 83.079482 * LONGITUDE START: -12.947867 * LATITUDE END: 82.720678 * LONGITUDE END: -12.852788 * DATE/TIME START: 2025-08-16T19:55:00 * DATE/TIME END: 2025-08-18T22:30:07 * ELEVATION START: -3407.7 m * ELEVATION END: -3011.6 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/8891 * CAMPAIGN: PS149 * BASIS: Polarstern * METHOD/DEVICE: Ice station # Ice Station 3c; Min. ice thickness 1.5m 2025-08-16T19:55:00 EVENT LABEL: PS149_46-1 (Ice Station 2d) * LATITUDE START: 84.201298 * LONGITUDE START: 18.149830 * LATITUDE END: 84.213073 * LONGITUDE END: 17.324578 * DATE/TIME START: 2025-08-23T06:51:59 * DATE/TIME END: 2025-08-24T18:32:02 * ELEVATION START: -4059.8 m * ELEVATION END: -3910.0 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/8891 * CAMPAIGN: PS149 * BASIS: Polarstern * METHOD/DEVICE: Ice station # Ice Station 2d 2025-08-23T06:51:59 EVENT LABEL: PS149_47-1 (Ice Station 3d) * LATITUDE START: 82.424062 * LONGITUDE START: -6.163415 * LATITUDE END: 82.338960 * LONGITUDE END: -4.657221 * DATE/TIME START: 2025-08-26T07:10:51 * DATE/TIME END: 2025-08-27T20:15:46 * ELEVATION START: -3268.2 m * ELEVATION END: -3502.6 m * O2A REGISTRY URI: https://registry.o2a-data.de/items/8891 * CAMPAIGN: PS149 * BASIS: Polarstern * METHOD/DEVICE: Ice station # Ice Station 3d; Min. ice thickness: 1.60m - 1.80m 2025-08-26T07:10:51 Related to <gco:CharacterString>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)</gco:CharacterString> 2026-01-01 publication https://doi.org/10.1594/PANGAEA.990497 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 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
https://orcid.org/0000-0002-3949-770X information author Spreen, Gunnar
gunnar.spreen@uni-bremen.de
https://orcid.org/0000-0003-0165-8448 information author documentDigital Related to <gco:CharacterString>The Expedition PS149 of the Research Vessel POLARSTERN to the Arctic Ocean in 2025</gco:CharacterString> 2026-01-01 publication https://doi.org/10.57738/BZPM_0808_2026 Nicolaus, Marcel
marcel.nicolaus@awi.de
https://orcid.org/0000-0003-0903-1746 information author documentDigital Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research 808 382 pp Related to <gco:CharacterString>Hyperspectral camera raw data (SPECIM_IQ_01) of nadir melt pond images taken during the RV Polarstern PS149 CONTRASTS cruise (July-August 2025)</gco:CharacterString> 2026-01-01 publication https://doi.pangaea.de/10.1594/PANGAEA.995758 Ringel, Maximilian Harald
mringel@uni-bremen.de
https://orcid.org/0000-0002-0600-135X information author Spreen, Gunnar
gunnar.spreen@uni-bremen.de
https://orcid.org/0000-0003-0165-8448 information author Huntemann, Marcus
marcus.huntemann@uni-bremen.de
author documentDigital