Preliminary Forecasting of Rainfall-Induced Shallow Landslides in the Wildfire Burned Areas of Western Greece
A new methodology for shallow landslide forecasting in wildfire burned areas is proposed by estimating the annual probability of rainfall threshold exceedance. For this purpose, extensive geological fieldwork was carried out in 122 landslides, which have been periodically activated in Western Greece...
| 发表在: | Land |
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| Main Authors: | , , |
| 格式: | 文件 |
| 语言: | 英语 |
| 出版: |
MDPI AG
2021-08-01
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| 主题: | |
| 在线阅读: | https://www.mdpi.com/2073-445X/10/8/877 |
| _version_ | 1850473129077374976 |
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| author | Spyridon Lainas Nikolaos Depountis Nikolaos Sabatakakis |
| author_facet | Spyridon Lainas Nikolaos Depountis Nikolaos Sabatakakis |
| author_sort | Spyridon Lainas |
| collection | DOAJ |
| container_title | Land |
| description | A new methodology for shallow landslide forecasting in wildfire burned areas is proposed by estimating the annual probability of rainfall threshold exceedance. For this purpose, extensive geological fieldwork was carried out in 122 landslides, which have been periodically activated in Western Greece, after the devastating wildfires that occurred in August 2007 and burned large areas in several parts of Western Greece. In addition, daily rainfall data covering more than 40 years has been collected and statistically processed to estimate the exceedance probability of the rainfall threshold above which these landslides are activated. The objectives of this study are to quantify the magnitude and duration of rainfall above which landslides in burned areas are activated, as well as to introduce a novel methodology on rainfall-induced landslide forecasting. It has been concluded that rainfall-induced landslide annual exceedance probability in the burned areas is higher when cumulative rainfall duration ranges from 6 to 9 days with local differences due to the prevailing geological conditions and landscape characteristics. The proposed methodology can be used as a basis for landslide forecasting in wildfire-affected areas, especially when triggered by rainfall, and can be further developed as a tool for preliminary landslide hazard assessment. |
| format | Article |
| id | doaj-art-2b05ab4cb4ab47a79d97db609cced9d5 |
| institution | Directory of Open Access Journals |
| issn | 2073-445X |
| language | English |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| spelling | doaj-art-2b05ab4cb4ab47a79d97db609cced9d52025-08-19T22:40:27ZengMDPI AGLand2073-445X2021-08-0110887710.3390/land10080877Preliminary Forecasting of Rainfall-Induced Shallow Landslides in the Wildfire Burned Areas of Western GreeceSpyridon Lainas0Nikolaos Depountis1Nikolaos Sabatakakis2Department of Geology, Laboratory of Engineering Geology, University of Patras, 265 04 Patras, GreeceDepartment of Geology, Laboratory of Engineering Geology, University of Patras, 265 04 Patras, GreeceDepartment of Geology, Laboratory of Engineering Geology, University of Patras, 265 04 Patras, GreeceA new methodology for shallow landslide forecasting in wildfire burned areas is proposed by estimating the annual probability of rainfall threshold exceedance. For this purpose, extensive geological fieldwork was carried out in 122 landslides, which have been periodically activated in Western Greece, after the devastating wildfires that occurred in August 2007 and burned large areas in several parts of Western Greece. In addition, daily rainfall data covering more than 40 years has been collected and statistically processed to estimate the exceedance probability of the rainfall threshold above which these landslides are activated. The objectives of this study are to quantify the magnitude and duration of rainfall above which landslides in burned areas are activated, as well as to introduce a novel methodology on rainfall-induced landslide forecasting. It has been concluded that rainfall-induced landslide annual exceedance probability in the burned areas is higher when cumulative rainfall duration ranges from 6 to 9 days with local differences due to the prevailing geological conditions and landscape characteristics. The proposed methodology can be used as a basis for landslide forecasting in wildfire-affected areas, especially when triggered by rainfall, and can be further developed as a tool for preliminary landslide hazard assessment.https://www.mdpi.com/2073-445X/10/8/877rainfall thresholdshallow landslideswildfireslandslide forecastinglandslide hazard |
| spellingShingle | Spyridon Lainas Nikolaos Depountis Nikolaos Sabatakakis Preliminary Forecasting of Rainfall-Induced Shallow Landslides in the Wildfire Burned Areas of Western Greece rainfall threshold shallow landslides wildfires landslide forecasting landslide hazard |
| title | Preliminary Forecasting of Rainfall-Induced Shallow Landslides in the Wildfire Burned Areas of Western Greece |
| title_full | Preliminary Forecasting of Rainfall-Induced Shallow Landslides in the Wildfire Burned Areas of Western Greece |
| title_fullStr | Preliminary Forecasting of Rainfall-Induced Shallow Landslides in the Wildfire Burned Areas of Western Greece |
| title_full_unstemmed | Preliminary Forecasting of Rainfall-Induced Shallow Landslides in the Wildfire Burned Areas of Western Greece |
| title_short | Preliminary Forecasting of Rainfall-Induced Shallow Landslides in the Wildfire Burned Areas of Western Greece |
| title_sort | preliminary forecasting of rainfall induced shallow landslides in the wildfire burned areas of western greece |
| topic | rainfall threshold shallow landslides wildfires landslide forecasting landslide hazard |
| url | https://www.mdpi.com/2073-445X/10/8/877 |
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