Data

Drone derived orthomosaic and digital surface model of Béchervaise Island (December 2024)

Australian Antarctic Division
Price, G., Viola, B., Wilkins, D. and Spedding, T. ; PRICE, GWILYM ; VIOLA, BEN ; WILKINS, DANIEL ; SPEDDING, TIM
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.26179/k386-9694&rft.title=Drone derived orthomosaic and digital surface model of Béchervaise Island (December 2024)&rft.identifier=10.26179/k386-9694&rft.publisher=Australian Antarctic Data Centre&rft.description=Orthomosaic and Digital Surface Model (DSM) generated from drone derived imagery collected on the 05th of December 2024 (20241205 091913 UTC) by Dr Gwil Price and Ben Viola.A DJI M300 RTK drone fitted with a DJI Zenmuse P1 camera with 35mm lens was used to collect mostly nadir photographs, at a height of ~ 80.6 AGL. The average ground resolution is 9.74 mm per pixelAgisoft Metashape Professional (build 2.1.2) was used to process 5,425 photographs into a single orthomosaic and DSM. All raster products have been shifted by 0.67m west and 1.0 m north to match the ITRF2000 coordinates listed for survey mark NMS54 in the AAD survey control databasehttps://transfer.data.aad.gov.au/aadc-applications/survey_control/AUSLIG_control_29Jul02/NatMap_stn_summaries_2/040142-00.jpg The Digital Surface Model is represented in two formats – an RGB (3 channel) representation for simplified viewing of terrain, and as a single channel (greyscale) file representing elevation. The single channel DSM has been corrected by subtracting 29.03 from the height value (originally in height above ellipsoid) to align the DSM with the orthometric height recorded for the survey mark (51.97m). The value of 29.03 was obtained from a nearby point on the boulder, to avoid the height anomaly associated with the mast.Progress Code: completedStatement: No GCP's were used when generating the orthomosaic, but rasters were XY shifted to align with ITRF coordinates of Survey Mark NMS54, which is located towards the centre of the island. Positioning errors at the edge of the scene (edge of the island) have not been assessed.&rft.creator=Price, G., Viola, B., Wilkins, D. and Spedding, T. &rft.creator=PRICE, GWILYM &rft.creator=VIOLA, BEN &rft.creator=WILKINS, DANIEL &rft.creator=SPEDDING, TIM &rft.date=2025&rft.coverage=westlimit=62.60559; southlimit=-67.63641; eastlimit=63.04504; northlimit=-67.45598&rft.coverage=westlimit=62.60559; southlimit=-67.63641; eastlimit=63.04504; northlimit=-67.45598&rft.coverage=uplimit=81; downlimit=79&rft.coverage=uplimit=81; downlimit=79&rft_rights=These data are publicly available for download from the provided URL.&rft_rights=Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/legalcode&rft_rights=This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4622_Bechervaise_Island_Orthomosaic_DSM when using these data.&rft_rights=This metadata record is publicly available.&rft_subject=biota&rft_subject=imageryBaseMapsEarthCover&rft_subject=EARTH SCIENCE > SPECTRAL/ENGINEERING > VISIBLE WAVELENGTHS > VISIBLE IMAGERY&rft_subject=EARTH SCIENCE > OCEANS > GEOLOGICAL FEATURES&rft_subject=EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL LANDFORMS&rft_subject=EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > BIRDS > PENGUINS&rft_subject=DJI ZENMUSE P1 RGB CAMERA&rft_subject=DRONE / RPAS&rft_subject=CAMERAS&rft_subject=UAV > Unmanned Aerial Vehicle&rft_subject=ROVS > Remotely Operated Vehicle&rft_subject=CEOS&rft_subject=AMD/AU&rft_subject=AMD&rft_subject=GEOGRAPHIC REGION > POLAR&rft_subject=CONTINENT > ANTARCTICA > BECHERVAISE ISLAND&rft_subject=CONTINENT > ANTARCTICA > MAWSON STATION&rft.type=dataset&rft.language=English Access the data
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Attribution 4.0 International (CC BY 4.0)
https://creativecommons.org/licenses/by/4.0/legalcode

These data are publicly available for download from the provided URL.

This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4622_Bechervaise_Island_Orthomosaic_DSM when using these data.

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Full description

Orthomosaic and Digital Surface Model (DSM) generated from drone derived imagery collected on the 05th of December 2024 (20241205 091913 UTC) by Dr Gwil Price and Ben Viola.

A DJI M300 RTK drone fitted with a DJI Zenmuse P1 camera with 35mm lens was used to collect mostly nadir photographs, at a height of ~ 80.6 AGL. The average ground resolution is 9.74 mm per pixel

Agisoft Metashape Professional (build 2.1.2) was used to process 5,425 photographs into a single orthomosaic and DSM.

All raster products have been shifted by 0.67m west and 1.0 m north to match the ITRF2000 coordinates listed for survey mark NMS54 in the AAD survey control database
https://transfer.data.aad.gov.au/aadc-applications/survey_control/AUSLIG_control_29Jul02/NatMap_stn_summaries_2/040142-00.jpg

The Digital Surface Model is represented in two formats – an RGB (3 channel) representation for simplified viewing of terrain, and as a single channel (greyscale) file representing elevation.

The single channel DSM has been corrected by subtracting 29.03 from the height value (originally in height above ellipsoid) to align the DSM with the orthometric height recorded for the survey mark (51.97m). The value of 29.03 was obtained from a nearby point on the boulder, to avoid the height anomaly associated with the mast.

Lineage

Progress Code: completed
Statement: No GCP's were used when generating the orthomosaic, but rasters were XY shifted to align with ITRF coordinates of Survey Mark NMS54, which is located towards the centre of the island. Positioning errors at the edge of the scene (edge of the island) have not been assessed.

Notes

Purpose
Establishing the location and position of infrastructure and geographic context for environmental samples collected for AAS4622, as well as capturing penguin numbers and location.

Data time period: 2024-12-05 to 2024-12-05

This dataset is part of a larger collection

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63.04504,-67.45598 63.04504,-67.63641 62.60559,-67.63641 62.60559,-67.45598 63.04504,-67.45598

62.825315,-67.546195

text: westlimit=62.60559; southlimit=-67.63641; eastlimit=63.04504; northlimit=-67.45598

text: uplimit=81; downlimit=79

Subjects
AMD | AMD/AU | CAMERAS | CEOS | CONTINENT > ANTARCTICA > BECHERVAISE ISLAND | CONTINENT > ANTARCTICA > MAWSON STATION | DJI ZENMUSE P1 RGB CAMERA | DRONE / RPAS | EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > BIRDS > PENGUINS | EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL LANDFORMS | EARTH SCIENCE > OCEANS > GEOLOGICAL FEATURES | EARTH SCIENCE > SPECTRAL/ENGINEERING > VISIBLE WAVELENGTHS > VISIBLE IMAGERY | GEOGRAPHIC REGION > POLAR | ROVS > Remotely Operated Vehicle | UAV > Unmanned Aerial Vehicle | biota | imageryBaseMapsEarthCover |

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Other Information
Download the dataset. (GET DATA > DIRECT DOWNLOAD)

url : https://data.aad.gov.au/eds/6098/download

Public information for AAS project AAS_4622 (PROJECT HOME PAGE)

url : https://projects.aad.gov.au/report_project_public.cfm?project_no=AAS_4622

Citation reference for this metadata record and dataset. (VIEW RELATED INFORMATION)

url : https://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4622_Bechervaise_Island_Orthomosaic_DSM

Identifiers
ACN 633 798 857