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Bluesky Aerial Data Helps CGL Pinpoint Natural Hazards at Development Sites

Bluesky Aerial Data Helps CGL Pinpoint Natural Hazards at Development Sites
directionsmag.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from directionsmag.com Daily Mail and Mail on Sunday newspapers.

United Kingdom , Republic Of Ireland , Great Britain , David Giles , Ralph Coleman , Bluesky International , Card Geotechnics Ltd , National Tree Map , Geotechnics Ltd , Technical Director , Near Infrared , Colour Infrared , Light Detection , Digital Surface Models , Digital Terrain Models , Chief Commercial Officer , Ultracam Eagle Mark ,

UP42 and Vexcel Team Up to Expand Aerial Imagery and Geospatial Data Portfolio on Marketplace

UP42 and Vexcel Team Up to Expand Aerial Imagery and Geospatial Data Portfolio on Marketplace
directionsmag.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from directionsmag.com Daily Mail and Mail on Sunday newspapers.

New Zealand , Jason Jones , Sean Wiid , Vexcel Data Program , Eastern Europe , True Ortho , Digital Surface Models , Digital Terrain Models , Data Program ,

"Quantification of Coastal Change and Preliminary Sediment Budget Calcu" by Rafael C. Carvalho and Ruth Reef

A preliminary sediment budget for the sandy shores flanking the entrance to Western Port, a large bay in Australia, was formulated using a comparison between two Digital Surface Models (DSMs) with a 30-year interval and auxiliary shoreline data. The 1977 DSM was generated from ten aerial photographs using Structure-from-Motion (SfM) photogrammetry. Assessment of its accuracy obtained an RMSE of 0.48 m with most of the independent points overpredicting or underpredicting elevations by less than 0.5 m following manual point cloud cleaning. This technique created a 7.5 km2 surface with a Ground Sampling Distance of 34.3 cm between two coastal towns separated by a narrow channel. Comparison of the 1977 DSM to a second, light detection and ranging (LiDAR)-derived DSM from 2007 showed that a volume of ~200,000 m3 of sediment (above Mean Sea Level) was deposited at Newhaven Beach on Phillip Island, while, during the same period, ~40,000 m3 of sediment was lost from the mainland beaches of San ....

San Remo , Western Port , Phillip Island , Digital Surface Models , Ground Sampling Distance , Mean Sea Level , Newhaven Beach , San Remo Beach , Aerial Photogrammetry , Alance Of Sediments , Historical Archive , Orphological Change , Sandy Beaches ,