1. Australian Antarctic Data Centre
2. Discover and Manage Data
3. Records
4. AAS_4622_Denman_Terrestrial_Campaign_Camp_Features

Description

This dataset consists of two geopackages.

Geopackage 1 is a hand digitised polygon geopackage in EPSG:32747 (WGS 84/UTM47S) format, derived from the six orthomosaic datasets which constitute the DTC time series (spanning 22/12/2022 to 04/02/2025). Orthomosaics were typically visualised and digitised at a scale of 1:200, with more detailed assessments made at 1:50 scale.
The geopackage consists of 190 polygons which shows the distribution of temporary items and more permanent infrastructure associated with the Edgeworth David Base and Denman Terrestrial Campaign camps. The geopackage captures the most significant items observed, and does not capture small linear features or minor items (e.g. power cords, thin ropes and tape measures, individual anchor points). The total area encompassed by the polygons is 1,698m2 (0.17 ha).

The second geopackage is hand digitised in EPSG:32747 (WGS 84/UTM47S) format, derived from the six orthomosaic datasets which constitute the DTC time series (spanning 22/12/2022 to 04/02/2025). Typically, these orthomosaics were visualised and digitised at a scale of 1:200, with more detailed assessments made at 1:50 scale.
The geopackage consists of lines which show recognisable walking pathways between camp features, as well as drainage ditches associated with the melt lake and/or temporary tent sites. Some pathways were quite distinct and well established, with rocks moved to either side of the path and a well-worn track surface. Other pathways were less distinct and less well established, and may fade with time due to natural processes.
Occasionally, reference was also made to orthomosaics from prior and/or post time points to assess features, and/or to the accompanying digital surface models.
85 linear metres of drainage channels and 755 linear metres of walking paths were digitised.

Purpose

The Denman Terrestrial Science Field Campaign (DTC) was a major science campaign undertaken by the Australian Antarctic Program over three Antarctic field seasons (between 2022-23 and 2024-25). To support the DTC, temporary infrastructure and operational support activities were centred at Australia’s Edgeworth David Base (EDB) in the Bunger Hills, along with several distal field camps established to facilitate scientific research. The DTC camp was the primary operational hub for the campaign, supporting up to 40 personnel and serving as the base for helicopters and field operations.
Minor modifications of the landscape within the immediate vicinity of EDB were required to prepare the field camp for the campaign. The Initial Environmental Evaluation – Denman Terrestrial Campaign Operational Support 2022-2023 committed to developing a Remediation Plan to restore habitats and landscapes that were modified to support campaign activities, consistent with the Protocol on Environmental Protection to the Antarctic Treaty, which requires that activities in the Antarctic Treaty area are planned and conducted so as to limit adverse impacts on the Antarctic environment (Article 3(2)(a)) but also the repair and restoration of disturbed environments.
Under the Remediation Plan, the nature, and extent of permitted activities was tightly defined, as were the required steps to restore and rehabilitate the landscape. Furthermore, the location of camp facilities and associated disturbance footprints were assessed using high resolution aerial mapping acquired by Remotely Piloted Aircraft Systems (RPAS/drone) at multiple timepoints, including during field camp construction, and following camp demobilisation.

Access

These data are not yet publicly available for download.

Temporal Coverages

• Start date: 2022-12-22 - Stop date: 2025-02-04

Spatial Coverages

Data Resolution

Science Keywords

• EARTH SCIENCE > SPECTRAL/ENGINEERING > VISIBLE WAVELENGTHS > VISIBLE IMAGERY
• EARTH SCIENCE > HUMAN DIMENSIONS > INFRASTRUCTURE > TRANSPORTATION
• EARTH SCIENCE > HUMAN DIMENSIONS > INFRASTRUCTURE > WATER STORAGE
• EARTH SCIENCE > HUMAN DIMENSIONS > INFRASTRUCTURE > BUILDINGS
• EARTH SCIENCE > HUMAN DIMENSIONS > INFRASTRUCTURE

Use Constraints

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_Denman_Terrestrial_Campaign_Camp_Features when using these data.