Issue link: https://geospatial.trimble.com/en/resources/i/1397563
RESULTS Based on the positive outcomes of the New Zealand study and preliminary Iceland results, an OBIA-based approach could provide a more efficient, reliable and customizable system for mapping and inventorying landslides, both in the immediate aftermath and in the months following. As a complement to manual methods, an automated system would both allow experts to quickly detect and classify landslides and map their extent over large areas as well as flag unstable areas. From those overview maps, they can create comprehensive, detailed landslide inventories for developing location-specific, risk mitigation measures. By using a multi-source, integrated mapping approach, specialists can map visible landslides with optical imagery and the underground, slow-moving slides with SAR data. The additional detail can enable experts to create complete landslide inventories, and the velocity detail from InSAR allows them to analyze land movement over time. Tracking both visible, fast-moving landslides and deep-seated, slow-moving landslides could lead to predictive modelling. "eCognition, with remote sensing data, is the most powerful tool for detecting and analyzing landslides." DANIEL HÖLBLING Research Scientist, Department of Geoinformatics, University of Salzburg. "By studying the historical evolution of landslides and mapping the changes over time, you could use the mapping, to some degree, for prediction," said Hölbling. "Combining optical and InSAR data to map both visible and invisible slides could enable us to forecast how the landslide might continue to move based on the historical movement. That's incredibly promising." NORTH AMERICA Trimble Inc. 10368 Westmoor Drive Westminster CO 80021 USA EUROPE Trimble Germany GmbH Am Prime Parc 11 65479 Raunheim GERMANY +49-6142-2100-0 Phone +49-6142-2100-140 Fax ASIA-PACIFIC Trimble Navigation Singapore PTE Limited 3 HarbourFront Place #13-02 HarbourFront Tower Two Singapore 099254 SINGAPORE +65-6871 5878 Phone +65-6871 5879 Fax Contact your local Trimble Authorized Distribution Partner for more information © 2017, Trimble Inc. All rights reserved. Trimble, the Globe & Triangle logo, and eCognition are trademarks of Trimble Inc., registered in the United States and in other countries. All other trademarks are the property of their respective owners. PN 022516-359 (12/17) TRANSFORMING THE WAY THE WORLD WORKS