All scientific data collected by the Australian Antarctic program (AAp) are eventually described in the Catalogue of Australian Antarctic and Subantarctic Metadata (CAASM). CAASM can be used to search through AAp data descriptions, and it also provides links to access publicly available datasets, which can either be immediately downloaded or obtained from the Australian Antarctic Data Centre (AADC).
Drone photographs used for this photogrammetry project (AAD23_m011****.jpg) have already been lodged under AADC metadata Record AAS_4503_Orthomosaic_DSM_Casey_2023.
Vide: Wilkins, D., McWatters, R. and Spedding, T. (2023) Orthomosaic and digital surface model of Casey station, 8th February 2023., Ver. 1, Australian Antarctic Data Centre - doi:10.26179/1pb8-4g29
This project was created with ESRI SiteScan (generated with Pix4DengineSDK version 5.0.45), using the source photographs and a different GCP data file (GCP_photogrammetry_project_142LatLong.csv).
Ground Control Points were converted from their collected datum based on ITRF2014 to WGS84, using a calculated offset from Survey Mark BM05.
Collected data to WGS84
Easting offset: -0.332 m
Northing offset: 1.226 m
Internal Reference - Photogrammetry Project DW_142.
Project reprocessed with ground control points in WGS84 datum, for serving orthomosaic via WMS.
Refer to the processing report (pdf) for data quality metrics. 9 ground control points were used, including one over Casey survey mark BM05. Mean RMS error on the GCP's was 0.04m. A single ground control point was withheld from the photogrammetric processing and used as a check point, with X,Y and Z errors of 0.03, 0.05, and 0.05 m respectively. Accuracy of features outside the GCP network will be of lower quality. Some areas of the DSM are of poor quality due to an insufficient number of pair matches.
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_4503_WGS84_Orthomosaic_DSM_Casey_2023 when using these data.