Topmusicanswers
PFR model approach Frequency ratio approach is based on the observed relationships between the distribution of landslides and each landslide-related factor, to reveal the correlation between landslide locations and the factors in the study area (Lee and Pradhan 2006).
- What is frequency ratio method for landslide susceptibility?
- What is landslide susceptibility index?
- What is landslide frequency?
- Which is the most common trigger factor for landslide in indonesia?
What is frequency ratio method for landslide susceptibility?
The derived frequency ratio is summed to develop a Landslide Susceptibility Index (LSI) map using Eq. ... According to the technique, the ratio is that of the area where the landslides is occurred, to the total area, so that the value of 1 is an average value.
What is landslide susceptibility index?
The landslide susceptibility index (LSI) was computed and reclassified into five categories: very low, low, moderate, high, and very high. Approximately 9.9% of the whole area would be prone to landslide occurrence when the LSI value indicated at very high and high landslide susceptibility.
What is landslide frequency?
The annual probability of a landslide event of a given magnitude which occurs on average one time each T years is: P ( N = 1 ; t = 1 ) = 1 T = λ where T is the return period of the event, and λ is the expected frequency for future occurrences.
Which is the most common trigger factor for landslide in indonesia?
Landslides are common natural disasters in Bogor, Indonesia, triggered by a combination of factors including slope aspect, soil type and bedrock lithology, land cover and land use, and hydrologic conditions. In the Bogor area, slopes with volcanic lithologies are more susceptible to failure.
