Approaches for delineating landslide hazard areas using receiver operating characteristic in an advanced calibrating precision soil erosion model
P. T. Ghazvinei1,2, J. Zandi3, J. Ariffin4, R. B. Hashim1, S. Motamedi1, N. Aghamohammadi5, and D. A. Moghaddam61Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia 2Young Researchers and Elite Club, Parand Branch, Islamic Azad University, Parand, Iran 3Department of Watershed Management, College of Natural Resources Sciences, Sari University, Mazandaran, Iran 4Fluvial and River Engineering Dynamics Group, Institute of Infrastructure Engineering and Sustainability Management, Faculty of Civil Engineering, Universiti Teknologi MARA (UiTM), Shah Alam, Malaysia 5Center for Occupational and Environmental Health, Department of Social and Preventive Medicine, University of Malaya, Kuala Lumpur, Malaysia 6Department of Environmental Engineering, Damavand Branch, Islamic Azad University, Damavand, Iran
Received: 22 Sep 2015 – Accepted for review: 23 Sep 2015 – Discussion started: 21 Oct 2015
Abstract. Soil erosion is undesirable natural event that causes land degradation and desertification. Identify the erosion-prone areas is a major component of preventive measures. Recent landslide damages at different regions lead us to develop a model of the erosion susceptibility map using empirical method (RUSLE). A landslide-location map was established by interpreting satellite image. Field observation data was used to validate the intensity of soil erosion. Further, a correlation analysis was conducted to investigate the "Receiver Operating Characteristic" and frequency ratio. Results showed a satisfactory correlation between the prepared RUSLE-based soil erosion map and actual landslide distribution. The proposed model can effectively predict the landslide events in soil-erosion area. Such a reliable predictive model is an effective management facility for the regional landslide forecasting system.
Ghazvinei, P. T., Zandi, J., Ariffin, J., Hashim, R. B., Motamedi, S., Aghamohammadi, N., and Moghaddam, D. A.: Approaches for delineating landslide hazard areas using receiver operating characteristic in an advanced calibrating precision soil erosion model, Nat. Hazards Earth Syst. Sci. Discuss., 3, 6321-6349, doi:10.5194/nhessd-3-6321-2015, 2015.