Blei Torben torben.blei@awi.de 0009-0005-7106-4284 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 Fuchs Niels niels.fuchs@uni-hamburg.de 0000-0001-8536-6877 University of Hamburg https://ror.org/00g30e956 Birnbaum Gerit Gerit.Birnbaum@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/gerit-birnbaum.html 0000-0002-0252-6781 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 Neckel Niklas niklas.neckel@awi.de 0000-0003-4300-5488 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 2026 Drone-based ice station orthomosaics in local coordinate systems from the PS149/CONTRASTS expedition in the Arctic Ocean dataset https://doi.pangaea.de/10.1594/PANGAEA.996057 2026-07-17T08:40:38 This dataset consists of high-resolution airborne orthomosaics of the working areas surrounding the 11 ice stations visited during the PS149/CONTRASTS expedition in the Arctic Ocean between 2nd of July and 1st of September 2025. Mentioned ice stations are comprised of a visit to one of three floes. These floes were located in first-, second-, or multi-year ice respectively. The orthomosaics were generated through photogrammetric processing of airborne RGB imagery using Agisoft Metashape. No brightness corrections were applied. The imagery was acquired during drone surveys conducted in a chessboard-like flight pattern using a DJI Matrice 350 RTK equipped with a DJI Zenmuse H20T camera. A DJI Mavic 3 was used exclusively during the fourth visit to ice station 2 (2d) due to adverse weather conditions. The chessboard-like survey pattern generally consisted of at least two image blocks flown at different altitudes. The first visit to ice station 2 (2a) represents an exception, with observations restricted to a single altitude. Survey parameters, including flight altitude, speed, and image overlap, varied depending on weather conditions and floe drift speed. The orthomosaics are referenced in local coordinate systems defined by black-and-white ground targets deployed on the ice and, where possible, scaled using tachymeter measurements. These coordinate systems were maintained as consistently as possible throughout repeated visits to the ice stations. For surveys in which no ground targets were deployed, target locations were approximated based on their positions during previous visits. Orthomosaics generated under these conditions are marked accordingly. Nicolaus Marcel marcel.nicolaus@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/marcel-nicolaus.html 0000-0003-0903-1746 2026 The Expedition PS149 of the Research Vessel POLARSTERN to the Arctic Ocean in 2025 report Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research 808 https://doi.org/10.57738/BZPM_0808_2026 382 pp -17.90193 33.73123 82.38925 84.78032 9.462055454545455 83.63172727272728 2025-07-09T07:10:00 2025-08-27T15:24:00 130.0 130.0 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://doi.org/10.13039/501100003207 AWI_PS149_01 Sea Ice Physics (CONTRASTS) PS149_13-1-Mavic3-01 83.8029833333333 20.7543333333333 2025-07-09T07:10:00 2025-07-09T07:22:00 PS149 PS149 CONTRASTS; ArcWatch 3 CONTRASTS; ArcWatch 3 Tromsø, Norway 2025-07-02T00:00:00 2025-07-02 Longyearbyen, Svalbard and Jan Mayen 2025-09-01T00:00:00 2025-09-01 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Nicolaus, Marcel Nicolaus, Marcel doi:10.57738/bzpm_0808_2026 20250027 https://epic.awi.de/id/eprint/60162/ https://download.pangaea.de/reference/135889/attachments/PS149_nav.png doi:10.1594/PANGAEA.987133 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 DJI Mavic 3; equipped with a 4/3 CMOS Hasselblad camera; DJI Enterprise Mavic3 https://registry.o2a-data.de/items/11883 Not logged in DShip PS149_16-1-M350-01 84.7803166 14.20825 2025-07-16T14:59:00 2025-07-16T15:06:00 PS149 PS149 CONTRASTS; ArcWatch 3 CONTRASTS; ArcWatch 3 Tromsø, Norway 2025-07-02T00:00:00 2025-07-02 Longyearbyen, Svalbard and Jan Mayen 2025-09-01T00:00:00 2025-09-01 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Nicolaus, Marcel Nicolaus, Marcel doi:10.57738/bzpm_0808_2026 20250027 https://epic.awi.de/id/eprint/60162/ https://download.pangaea.de/reference/135889/attachments/PS149_nav.png doi:10.1594/PANGAEA.987133 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Unmanned Aerial Vehicle (UAV), DJI Technology Co, Matrice 350 RTK; coupled with Zenmuse L2 Lidar System, XT thermal sensor, optical Camera system, RTK base station M350_RTK https://registry.o2a-data.de/items/11894 Not logged in DShip. nan PS149_18-1-M350-01 84.404983 -17.901933 2025-07-21T15:31:00 2025-07-21T15:37:00 PS149 PS149 CONTRASTS; ArcWatch 3 CONTRASTS; ArcWatch 3 Tromsø, Norway 2025-07-02T00:00:00 2025-07-02 Longyearbyen, Svalbard and Jan Mayen 2025-09-01T00:00:00 2025-09-01 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Nicolaus, Marcel Nicolaus, Marcel doi:10.57738/bzpm_0808_2026 20250027 https://epic.awi.de/id/eprint/60162/ https://download.pangaea.de/reference/135889/attachments/PS149_nav.png doi:10.1594/PANGAEA.987133 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Unmanned Aerial Vehicle (UAV), DJI Technology Co, Matrice 350 RTK; coupled with Zenmuse L2 Lidar System, XT thermal sensor, optical Camera system, RTK base station M350_RTK https://registry.o2a-data.de/items/11894 Not logged in DShip. nan PS149_21-1-M350-01 82.54 26.92435 2025-07-27T12:14:00 2025-07-27T12:20:00 PS149 PS149 CONTRASTS; ArcWatch 3 CONTRASTS; ArcWatch 3 Tromsø, Norway 2025-07-02T00:00:00 2025-07-02 Longyearbyen, Svalbard and Jan Mayen 2025-09-01T00:00:00 2025-09-01 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Nicolaus, Marcel Nicolaus, Marcel doi:10.57738/bzpm_0808_2026 20250027 https://epic.awi.de/id/eprint/60162/ https://download.pangaea.de/reference/135889/attachments/PS149_nav.png doi:10.1594/PANGAEA.987133 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Unmanned Aerial Vehicle (UAV), DJI Technology Co, Matrice 350 RTK; coupled with Zenmuse L2 Lidar System, XT thermal sensor, optical Camera system, RTK base station M350_RTK https://registry.o2a-data.de/items/11894 Not logged in DShip. full AoI PS149_25-1-M350-01 83.7574167 15.8242168 2025-07-30T21:22:00 2025-07-30T21:28:00 PS149 PS149 CONTRASTS; ArcWatch 3 CONTRASTS; ArcWatch 3 Tromsø, Norway 2025-07-02T00:00:00 2025-07-02 Longyearbyen, Svalbard and Jan Mayen 2025-09-01T00:00:00 2025-09-01 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Nicolaus, Marcel Nicolaus, Marcel doi:10.57738/bzpm_0808_2026 20250027 https://epic.awi.de/id/eprint/60162/ https://download.pangaea.de/reference/135889/attachments/PS149_nav.png doi:10.1594/PANGAEA.987133 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Unmanned Aerial Vehicle (UAV), DJI Technology Co, Matrice 350 RTK; coupled with Zenmuse L2 Lidar System, XT thermal sensor, optical Camera system, RTK base station M350_RTK https://registry.o2a-data.de/items/11894 Not logged in DShip. lower altitude PS149_30-1-M350-01 83.6185833333333 -11.8160833333333 2025-08-04T21:38:00 2025-08-04T21:46:00 PS149 PS149 CONTRASTS; ArcWatch 3 CONTRASTS; ArcWatch 3 Tromsø, Norway 2025-07-02T00:00:00 2025-07-02 Longyearbyen, Svalbard and Jan Mayen 2025-09-01T00:00:00 2025-09-01 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Nicolaus, Marcel Nicolaus, Marcel doi:10.57738/bzpm_0808_2026 20250027 https://epic.awi.de/id/eprint/60162/ https://download.pangaea.de/reference/135889/attachments/PS149_nav.png doi:10.1594/PANGAEA.987133 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Unmanned Aerial Vehicle (UAV), DJI Technology Co, Matrice 350 RTK; coupled with Zenmuse L2 Lidar System, XT thermal sensor, optical Camera system, RTK base station M350_RTK https://registry.o2a-data.de/items/11894 Not logged in DShip. 60 m PS149_32-1-M350-01 83.2278833333333 33.7312333333333 2025-08-09T16:18:00 2025-08-09T16:48:00 PS149 PS149 CONTRASTS; ArcWatch 3 CONTRASTS; ArcWatch 3 Tromsø, Norway 2025-07-02T00:00:00 2025-07-02 Longyearbyen, Svalbard and Jan Mayen 2025-09-01T00:00:00 2025-09-01 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Nicolaus, Marcel Nicolaus, Marcel doi:10.57738/bzpm_0808_2026 20250027 https://epic.awi.de/id/eprint/60162/ https://download.pangaea.de/reference/135889/attachments/PS149_nav.png doi:10.1594/PANGAEA.987133 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Unmanned Aerial Vehicle (UAV), DJI Technology Co, Matrice 350 RTK; coupled with Zenmuse L2 Lidar System, XT thermal sensor, optical Camera system, RTK base station M350_RTK https://registry.o2a-data.de/items/11894 Not logged in DShip. three heights, no ground targets PS149_36-1-M350-01 84.5028166666666 21.9845833333333 2025-08-13T12:51:00 2025-08-13T12:57:00 PS149 PS149 CONTRASTS; ArcWatch 3 CONTRASTS; ArcWatch 3 Tromsø, Norway 2025-07-02T00:00:00 2025-07-02 Longyearbyen, Svalbard and Jan Mayen 2025-09-01T00:00:00 2025-09-01 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Nicolaus, Marcel Nicolaus, Marcel doi:10.57738/bzpm_0808_2026 20250027 https://epic.awi.de/id/eprint/60162/ https://download.pangaea.de/reference/135889/attachments/PS149_nav.png doi:10.1594/PANGAEA.987133 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Unmanned Aerial Vehicle (UAV), DJI Technology Co, Matrice 350 RTK; coupled with Zenmuse L2 Lidar System, XT thermal sensor, optical Camera system, RTK base station M350_RTK https://registry.o2a-data.de/items/11894 Not logged in DShip. 120m PS149_41-1-M350-01 82.74625 -12.8302333333333 2025-08-18T16:49:00 2025-08-18T16:58:00 PS149 PS149 CONTRASTS; ArcWatch 3 CONTRASTS; ArcWatch 3 Tromsø, Norway 2025-07-02T00:00:00 2025-07-02 Longyearbyen, Svalbard and Jan Mayen 2025-09-01T00:00:00 2025-09-01 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Nicolaus, Marcel Nicolaus, Marcel doi:10.57738/bzpm_0808_2026 20250027 https://epic.awi.de/id/eprint/60162/ https://download.pangaea.de/reference/135889/attachments/PS149_nav.png doi:10.1594/PANGAEA.987133 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Unmanned Aerial Vehicle (UAV), DJI Technology Co, Matrice 350 RTK; coupled with Zenmuse L2 Lidar System, XT thermal sensor, optical Camera system, RTK base station M350_RTK https://registry.o2a-data.de/items/11894 Not logged in DShip. 90/140 m PS149_46-1-Mavic3-01 84.17851666666667 17.785216666666667 2025-08-24T14:17:01 2025-08-24T14:29:02 PS149 PS149 CONTRASTS; ArcWatch 3 CONTRASTS; ArcWatch 3 Tromsø, Norway 2025-07-02T00:00:00 2025-07-02 Longyearbyen, Svalbard and Jan Mayen 2025-09-01T00:00:00 2025-09-01 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Nicolaus, Marcel Nicolaus, Marcel doi:10.57738/bzpm_0808_2026 20250027 https://epic.awi.de/id/eprint/60162/ https://download.pangaea.de/reference/135889/attachments/PS149_nav.png doi:10.1594/PANGAEA.987133 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 DJI Mavic 3; equipped with a 4/3 CMOS Hasselblad camera; DJI Enterprise Mavic3 https://registry.o2a-data.de/items/11883 Not logged in DShip. nan PS149_47-1-M350-01 82.38925 -4.581333333333333 130.0 2025-08-27T15:24:00 2025-08-27T15:34:00 PS149 PS149 CONTRASTS; ArcWatch 3 CONTRASTS; ArcWatch 3 Tromsø, Norway 2025-07-02T00:00:00 2025-07-02 Longyearbyen, Svalbard and Jan Mayen 2025-09-01T00:00:00 2025-09-01 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Nicolaus, Marcel Nicolaus, Marcel doi:10.57738/bzpm_0808_2026 20250027 https://epic.awi.de/id/eprint/60162/ https://download.pangaea.de/reference/135889/attachments/PS149_nav.png doi:10.1594/PANGAEA.987133 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Unmanned Aerial Vehicle (UAV), DJI Technology Co, Matrice 350 RTK; coupled with Zenmuse L2 Lidar System, XT thermal sensor, optical Camera system, RTK base station M350_RTK https://registry.o2a-data.de/items/11894 Not logged in DShip. full AoI 59 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Event label Event Event LATITUDE Latitude http://en.wikipedia.org/wiki/ISO_6709 Latitude LONGITUDE Longitude http://en.wikipedia.org/wiki/ISO_6709 Longitude DATE/TIME Date/Time http://en.wikipedia.org/wiki/ISO_8601 Time T http://dbpedia.org/resource/Time Date/Time Flight altitude Flight altitude m Length L http://dbpedia.org/resource/Length Survey altitude 1 Flight altitude [m] (Survey altitude 1) Flight altitude Flight altitude m Length L http://dbpedia.org/resource/Length Survey altitude 2 Flight altitude [m] (Survey altitude 2) Flight altitude Flight altitude m Length L http://dbpedia.org/resource/Length Survey altitude 3 Flight altitude [m] (Survey altitude 3) Instrument Instrument Drone Instrument (Drone) Resolution Resolution cm/pixel Resolution [cm/pixel] Comment Comment Comment Raster graphic, GeoTIFF format GeoTIFF GeoTIFF Raster graphic, GeoTIFF format (File Size) GeoTIFF (Size) Bytes GeoTIFF (Size) [Bytes] CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels Arctic drone maps ice station maps local coordinate system orthomosaic author114905 author24590 author30475 author67602 author79555 award4219 basis1 campaign3395020 campaign51147 curlevel30 event3327284 event3327446 event3327669 event3327873 event3328021 event3328229 event3328402 event3328560 event3328786 event3328972 event3329081 funder32 geocode1599 geocode1600 geocode1601 geocode8128 inst32 inst403 journal16572 license21 method18432 method18433 param119376 param1570 param16118 param512817 param566933 ref139667 term37889 term40892 term43863 term43975 term49575 term77535 term78339 term78340 term78341