Rockfall Activity Index (RAI): A lidar-derived, morphology-based method for hazard assessment
نویسندگان
چکیده
منابع مشابه
A methodology for physically based rockfall hazard assessment
Rockfall hazard assessment is not simple to achieve in practice and sound, physically based assessment methodologies are still missing. The mobility of rockfalls implies a more difficult hazard definition with respect to other slope instabilities with minimal runout. Rockfall hazard assessment involves complex definitions for “occurrence probability” and “intensity”. This paper is an attempt to...
متن کاملGIS-Based Rockfall Hazard Assessment in Support of Decision Making
When designing infrastructure, settlements or facilities in mountainous areas, rockfall hazard assessment is considered essential, as it is a major hazard worldwide. Rockfall hazard estimation can help greatly in the design of countermeasures, such as barriers and net fences, in order to protect the built environment, as well as for landuse planning. Rockfall modelling is considered an effectiv...
متن کاملAccuracy Assessment of Lidar-derived Dem Based on Approximation Theory
To assess the vertical accuracy of LiDAR-derived grid DEM, existing methods are mainly based on statistics such as RMSE, variance, or 95th percentile. However, statistical methods are not effective unless a large number of checkpoints are used because error in LiDAR-derived DEM is not random error, not from a normal distribution, not identically distributed, and not from a stationary process. S...
متن کاملLidar-based Hazard Avoidance for Safe Landing on Mars
Hazard avoidance is a key technology for landing large payloads safely on the surface of Mars. During hazard avoidance a lander uses onboard sensors to detect hazards in the landing zone, autonomously selects a safe landing site, and then maneuvers to the new site. Design of a system for hazard avoidance is facilitated by simulation where trades involving sensor and mission requirements can be ...
متن کاملO-Index as a New Assessment Index for Citations
Background and purpose: There are some strengths and weaknesses in current indicators of scientometrics. This study aimed to present a new index of scientometrics in evaluating scientific output of Iranian medical journals. Materials and methods: This exploratory analytical study was done with a scientometric approach in scientific output of 108 medical science journals indexed in Scopus and 6...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Engineering Geology
سال: 2017
ISSN: 0013-7952
DOI: 10.1016/j.enggeo.2017.03.009