Asian Surveying & Mapping
Breaking News
Mobile Mapping Market to witness steady growth of 17% during 2020-2026
According to a recent study from market research firm...
First Responder Technologies and Falcon Eye Drones Sign an Exclusive Distribution Agreement for UAE and Wider GCC
VANCOUVER, BC - First Responder Technologies Inc. ("First Responder" or the...
Terra Drone Indonesia Obtained the First Commercial BVLOS Permit in Indonesia
Jakarta, July 20, 2020 - Terra Drone Indonesia once...
U.S. government to allow sale of high-resolution commercial satellite images of Israel
The federal government will soon allow U.S. commercial remote...
BDiverse Signs on as a New Microdrones Distributor in Israel, the Middle East, and the Persian Gulf
Rome, NY –BDiverse of Israel, a supply chain improvement...
Russia seeds clouds in Siberia to douse raging wildfires
MOSCOW - Russian firefighters have been seeding clouds to...
US opts out of key HK center that feeds geo-data
CUHK’s earth sensing and ground receiving station monitors large...
GEO and Google Earth Engine announce funding for 32 projects to improve our planet
Today, The Group on Earth Observations (GEO) and Google...
UK-built spacecraft captures closest ever images of the Sun
Built in Stevenage by Airbus, backed by the UK...
Algeria’s AlSat-2A Earth Observation Satellite Doubles Nominal Lifespan In Orbit
The Algerian Space Agency (ASAL) is celebrating the tenth...

The City of Onkaparinga is located on the southern fringe of Adelaide, South Australia. It is the largest local authority in South Australia, with an estimated population of 164,800 people in both urban and rural communities. It is also geographically expansive, encompassing an area of 518.3 kilometres. The city has 30 kilometres of coastline that is extremely vulnerable to coastal erosion, which can cause significant damage to infrastructure and disrupt the lives of residents.

Coastal erosion is considered one of society’s major environmental hazards, and it is vital to know the current conditions of the coastline and provide ongoing monitoring. The goal of this AUD 50,000 project by the city of Onkaparinga was to document the state of its coastline to an accuracy of 100 millimetres and to create a base dataset to be used for comparison in future assessments. Since much of the coastline is rugged, AEROmetrex captured the imagery by helicopter. The objective was to map and model the detail without occlusions.

Using Bentley’s ContextCapture, 25,000 oblique photographs and 125 ground-control points were processed to create a detailed 3D mesh that ensured model accuracy of 100 millimetres. This process allowed volume, distance, and texture, and visually identified rocks, ground types, and the various structures.

By capturing imagery at different points in time, Onkaparinga can not only analyse the current state and condition of the coastline but also detect change in condition over time. The benefit to residents of the city, and to those in close proximity to the coastline, will be significant. Much of the erosion is encroaching on people’s property and has caused safety concerns. By using this capture method, however, the city is now able to monitor the coastline to help assess these safety concerns and provide high-definition models with a high degree of accuracy.

David Byrne, technical director, AEROmetrex, said, “Without the use of Bentley’s remarkable ContextCapture software the amazing detail and accuracy achieved in this project would not have been possible.”

Smarter Coastal Mapping for the City of Onkaparinga3