Loading...
Publication
Deception Island 1967–1970 volcano eruptions from historical aerial frames and satellite imagery (Antarctic Peninsula)
| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 23.91 MB | Adobe PDF |
Advisor(s)
Abstract(s)
Aerial frames and satellite imagery are widely recognized data sources from which to produce maps. For volcanoes, maps enable the quantification of erupted ash and the destruction caused.
The last eruptive sequence on Deception Island was endured from 1967 to 1970. Analogue maps
were produced via classical photogrammetric methods with a high degree of human intervention
mainly to analyse the volcanic-centres areas only. However, historical aerial frames cover the whole
of Deception Island. Structure from motion photogrammetry, a near-automated compilation of digital
image processing strategies, minimizes the degree of human intervention to produce orthographic
mosaics and digital elevation models from digital aerial frames. Orthographic mosaics were produced
from historical aerial frames of 1956 and 1968, and a Kompsat-3 image of 2020. Their shared rootmean-square deviation was 1.8 m and 1.7 m in easting and northing, respectively, at ground control
points measured with phase-differential global navigation satellite systems. The digital elevation
models were processed with a root-mean-square deviation of 2.3 m and 3.6 m from 1956 and 1968
aerial frames, respectively. As the first application, erupted ashfall and the subsequent destruction,
mainly at the former Chilean and British bases, were identified, and the volume of erupted ash was
assessed to be over 0.16 km3 within the area mapped by these new digital cartographic products.
Description
Keywords
Historical aerial frame Structure from motion 1967–1970 volcanic sequence Deception Islands Antarctic Peninsula
Citation
Remote Sensing 15 (8): 2052 (2023)