PANGAEA_995758
Hyperspectral camera raw data (SPECIM_IQ_01) of nadir melt pond images taken during the RV Polarstern PS149 CONTRASTS cruise (July-August 2025)
Ringel, Maximilian Harald; Spreen, Gunnar; Huntemann, Marcus
Hyperspectral camera raw data (SPECIM_IQ_01) of nadir melt pond images taken during the RV Polarstern PS149 CONTRASTS cruise (July-August 2025)
2026-07-28
PANGAEA
Dataset
https://doi.pangaea.de/10.1594/PANGAEA.995758
Investigator
Maximilian Harald
Ringel
mringel@uni-bremen.de
Earth Science
Event label
DATE/TIME
LATITUDE
LONGITUDE
Identification
Image
Image (File Size)
Ice floe description
Location
Transect length
Azimuth
Camera height
Light description
Comment
geoscientificInformation
Arctic
Arctic Ocean
CONTRASTS
CONTRASTS expedition
Hyperspectral data
hyperspectral imaging
hyperspectral reflectance
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
melt ponds
Polarstern
PS149
PS149_13-1
PS149_16-1
PS149_18-1
PS149_21-1
PS149_25-1
PS149_30-1
PS149_32-1
PS149_36-1
PS149_41-1
PS149_46-1
PS149_47-1
Sea ice
Hyperspectral camera Specim IQ
Tape measure
Anglemeter
Ruler stick
Polarstern
2025-07-09
2025-08-26
Complete
82.45868545
84.71771162
-17.89523207
34.08217426
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
1405 data points
text/tab-separated-values
Ringel, Maximilian Harald; et al. (in prep.): The observed dependence of melt pond reflectance and colour on under-pond sea ice thickness.
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
Ringel, Maximilian Harald; Spreen, Gunnar; Huntemann, Marcus (2026): Hyperspectral camera raw data (SPECIM_IQ_01) during the RV Polarstern PS149 CONTRASTS cruise (July-August 2025) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.995759 (same kind of hyperspectral images taken during the same expedition but using a different method and covering different surface kinds)
The data consists of 158 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. All images contain melt pond surfaces and are taken in nadir view (0° incidence angle). See the referenced cruise report for details of the used measurement set-up. 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. For some of the images there are co-located under-pond sea ice thickness measurements which are published in another dataset on PANGAEA (doi not available yet). The images here and the referenced sea ice thickness measurements can be linked using the site names given in the location_unified parameter. These site names are used throughout all publications related to CONTRASTS cruise melt pond observations. For each image there is another site name under location_original which refers to the site names which were chosen in the field and used in the O2A registry. Further hyperspectral images taken during the PS149 CONTRASTS expedition, which have been taken along short transects with an incidence angle of about 40-50°, are available in a separate dataset. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.995758"!
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://doi.pangaea.de/10.1594/PANGAEA.995759
Hyperspectral camera raw data (SPECIM_IQ_01) during the RV Polarstern PS149 CONTRASTS cruise (July-August 2025)
https://en.wikipedia.org/wiki/Azimuth
Azimuth
https://gepris.dfg.de/project/268020496
AC3
DIF
9.4
2026-07-28
2026-08-08