Scientific observations and results from Antarctica shallbe exchanged and made freely available
1) Dataset Title Multi-temporal UAV orthomosaics of an Adélie penguin colony at Cape Hallett, Ross Sea, Antarctica (2018–2025) 2) Purpose of Data Acquisition To establish a spatially co-registered multi-year UAV orthomosaic time series for long-term ecological monitoring of the Adélie penguin (Pygoscelis adeliae) breeding colony at Cape Hallett, Antarctic Specially Protected Area No. 106 (ASPA No. 106), Ross Sea, Antarctica. Because no real-time kinematic (RTK) ground control network is available at the site, absolute positional offsets of several metres accumulate between survey years. The dataset was therefore designed to achieve relative spatial consistency across the time series by co-registering all annual orthomosaics to a common 2018 master reference through an automated image-to-image registration workflow. 3) Brief Description Six austral-summer UAV campaigns (2018, 2021, 2022, 2023, 2024, 2025) acquired a total of 4,471 nadir RGB images over the Cape Hallett Adélie penguin colony (72°19'S, 170°13'E).The 2018 campaign, conducted with a DJI Matrice 600 hexacopter and a Canon EOS 5DS DSLR camera (GSD 0.72 cm/pix), serves as the master reference orthomosaic. Orthomosaics from the five subsequent campaigns (2021–2025), acquired with DJI consumer-grade quadcopters (Mavic 2 Pro, 2 Enterprise Advanced, 3 Pro, 4 Pro), were co-registered to the 2018 master using an automated pipeline combining deep learning-based (LightGlue + SuperPoint) and classical (SIFT, ORB) feature matching with four candidate geometric transformation models (translation, similarity, affine, second-order polynomial). Independent tie-point validation yielded median post-warp residuals of 2.02–2.38 m across all campaigns. 4) The deposit contains: (1) the 2018 master orthomosaic, (2) five pre-registration slave orthomosaics, (3) 20 co-registered orthomosaics (5 years ×4 models), (4) Agisoft Metashape photogrammetric survey reports (PDF) for each campaign, (5) 47 surveyed rock markers as shapefile and CSV, (6) independent post-warp residual measurements (20 CSV files), and (7) adopted co-registration model metadata (JSON) per slave year. All spatial data are in WGS 84 / UTM zone 59S (EPSG:32759). 5) Keywords UAV, orthomosaic, Adélie penguin, Cape Hallett, Ross Sea, Antarctica, image co-registration, time series, Structure-from-Motion, LightGlue, SuperPoint, ASPA 106, colony monitoring 6) Spatial Extent 72°19'S,170°13'E(Cape Hallett, northern Victoria Land, Ross Sea, Antarctica) Bounding box (EPSG:32759): Easting 472,940–474,305 m, Northing 1,974,587–1,975,656 m 7) Temporal Extent 2018-11-25, 2021-11-21, 2022-11-20, 2023-11-26, 2024-11-21, 2025-11-21 8) Data Formats GeoTIFF (orthomosaics), PDF (photogrammetry reports), Shapefile (reference markers), CSV (residual statistics, marker coordinates), JSON (adopted model metadata)
Obtained multibeam data for seafloor mapping during transit from Antarctica to New Zealand.
This is the dataset for sediment core ARA14C-ST12, collected from the Chukchi Basin. This dataset is provided in an Excel file with four sheets includes the following information: 1. XRF-CS results 2. Bulk XRD results 3. Clay XRD results 4. End-member modeling results
This dataset presents a new catalogue of active subglacial lakes beneath Thwaites Glacier, West Antarctica, identified using CryoSat-2 satellite radar altimetry. It details the boundaries, areas, and elevation changes of each lake, complete with 95% confidence intervals. The dataset also contains estimates of ice speed changes in the TG's grounding zone. For citation purposes, refer to the article by B-H Kim, C-K Lee*, K-W Seo, W S Lee, and J-W Park, 'New Catalogue of Thwaites Glacier Subglacial Lakes and Their Activity Revealed by CryoSat-2 Altimetry,' currently under revision for the Journal of Geophysical Research: Earth Surface. For more information, Dr. Choon-Ki Lee can be contacted at cklee@kopri.re.kr.
Seismic surveys were conducted over the southwestern continental slope of the Chukchi Rise, where physical gas hydrate samples have been recovered, and over adjacent seamount structures. The objective was to characterize the subsurface geological structures and to confirm the distribution of gas hydrates in the study area. To enable reliable interpretation of the seismic sections, data processing included noise attenuation and trace balancing. Strong vertical noise generated during ice-breaking operations and ice-avoidance maneuvering was suppressed. In addition, balancing procedures were applied to reduce interpretation uncertainty caused by lateral discontinuities and amplitude variations along the profiles.
This dataset consists of high-precision GNSS observation data collected from January to May 2025 at King Sejong Station, King George Island, Antarctica. The data can be used for monitoring crustal movements, surface stability, and glacial displacement in polar geophysical research.
King Sejong Station more infomation
Barton Peninsula, King George Island, AntarcticaJang Bogo Station more infomation
Terra Nova Bay, Northern Victoria Land, AntarcticaDasan Station more infomation
NyÅlesund, Norway, Europelast 5 years data
Since 2010
last 5 years data
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