Soft Copy Photogrammetry to Measure Shore Platform Erosion on Decadal Time Scales

Dornbusch, Uwe; Moses, Cherith; Robinson, David A.; Williams, R. B. G.

doi:10.1007/978-1-4020-9720-1_13

Cited by 8 publications

(12 citation statements)

References 7 publications

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“…Even so, several studies in the UK have used these techniques to measure cliff and shore platform retreat rates over decadal timescales (Dornbusch et al, 2005(Dornbusch et al, , 2007(Dornbusch et al, , 2008. A recent study has used Airborne Laser Scan (ALS) data to delineate shore platform boundaries (Palamara et al, 2007).…”

Section: Application Of Geo-informatics and Mathematicsmentioning

confidence: 98%

Whither shore platforms?

Dasgupta

2010

Progress in Physical Geography: Earth and Environment

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This paper reviews the research on shore platforms since 1980. Although some quantitative work on platforms was conducted in the late 1970s, it was principally in the 1980s that there was a change in the research paradigm, from qualitative observations to quantitative analyses. Researchers are now closer than ever before on agreeing that no single process can produce shore platforms in itself. The last decade has seen remarkable proliferation of research interests in shore platforms. Consequently, there are much-improved data sets on the processes acting on them. Even so, it has not yet been possible to establish definitively the precise role of each individual process in shore platform evolution. Laboratory simulation of platform morphodynamics has received much less attention compared to field-based studies. There are also some other aspects, such as threshold determination, geological control, inheritance, application of geo-informatics and focus on low-energy and tropical coasts, that have received limited attention. These areas are avenues for future research. To enable a better understanding of platform dynamics in a particular area, fieldwork, laboratory simulation and numerical modelling should be carried out simultaneously. Shore platforms are a global feature, and their study should be undertaken in all parts of the world through increased collaborative work among researchers.

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Section: Application Of Geo-informatics and Mathematicsmentioning

confidence: 98%

Whither shore platforms?

Dasgupta

2010

Progress in Physical Geography: Earth and Environment

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“…The described lack of calibration information is not uncommon in studies that include archive imagery. The work-around as described here has been successfully adopted in other studies (Miller et al, 2007;Fox and Czifersky, 2008;Dornbusch et al, 2010). A new camera calibration file was created and the final interior orientation RMS was within 0.5 pixel.…”

Section: Dem Extractionmentioning

confidence: 99%

Application of Surface Matching for Improved Measurements of Historic Glacier Volume Change in the Antarctic Peninsula

Kunz

Mills

Miller

et al. 2012

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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ABSTRACT:Climate records show that the Antarctic Peninsula is rapidly warming. Dramatic changes in ice shelf and glacier extent have been recorded over the last few decades. Mapping recent changes in the Antarctic Peninsula is relatively straightforward, as increased amounts of earth observation data become readily available for scientific purposes. However, long term measurements of volumetric changes within the region are rare and less is known of changes which have occurred over the second half of the 20th Century. Nonetheless, historical observations are available in the form of archival aerial stereo-photography. However, extracting information from historical data, i.e. to compare it to recent data, is not trivial, and to-date, this data source remains largely untapped, despite its rich potential. Often such imagery is stored in non-digital format and may have degraded over time. Other problems relate to insufficient metadata or ground control. Typically these difficulties result in poor registration of multi-temporal DEMs, which degrade subsequent measurements of surface change. This is one of the fundamental limitations of accessing archival datasets. In this research a least squares surface matching technique is introduced to overcome these challenges and achieve reliable registration of multi-temporal DEMs. Historical imagery acquired in the 1960s for two Antarctic Peninsula glaciers is processed to extract DEMs, which are subsequently compared to DEMs derived from modern ASTER satellite data and aerial photography. Through the surface matching approach, it is shown that the registration accuracy of the historical and modern-day datasets can be improved significantly. This enables precise quantification of glacier elevation changes on a multi-decadal time scale. Frontal glacier surface lowering of up to 50 m was observed over the last ~4 decades. Results of this study allow a better understanding of historical volumetric glacier changes of the Antarctic Peninsula and provide an efficient and automated method for improved DEM co-registration.

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“…Estimates range from virtually nothing up to 100 m yr −1 (Kirk, 1977;Sunamura, 1992), but it is difficult to identify patterns related to rock type or to wave and tidal conditions. The analysis of sequential air photography and satellite images can provide decadal-scale records of cliff recession and other aspects of coast erosion (Hapke, 2004;Dornbusch et al, 2008), but changes on rock coasts are often either too slow to detect or too rapid relative to the intervals between image acquisition. Sequential airborne and ground-based light detec tion and ranging (LIDAR) and global positioning systems (GPSs) surveys have become a powerful tool to monitor and model cliff and shore platform erosion, landslide stability, and the occurrence and size of individual rockfalls, slides (or land slide complexes) through space and time, particularly in areas that are generally inaccessible (Young and Ashford, 2006;Palamara et al, 2007).…”

Section: Cliffsmentioning

confidence: 99%

Cliffs and Rock Coasts

Trenhaile

2011

Treatise on Estuarine and Coastal Science

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Soft Copy Photogrammetry to Measure Shore Platform Erosion on Decadal Time Scales

Cited by 8 publications

References 7 publications

Whither shore platforms?

Whither shore platforms?

Application of Surface Matching for Improved Measurements of Historic Glacier Volume Change in the Antarctic Peninsula

Cliffs and Rock Coasts

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