Results 41 to 50 of about 700,264 (300)

Sensitivity analysis of the flash flood hazard by coupling variable fuzzy method and mutual entropy

open access: yesJournal of Flood Risk Management, 2022
Watershed characteristics are one of the crucial factors affecting watershed hydrologic processes. Watershed hydrologic process regulation has been shown to be an effective tool for flash flood management.
Haofang Wang   +3 more
doaj   +1 more source

Examining LightGBM and CatBoost models for wadi flash flood susceptibility prediction

open access: yesGeocarto International, 2021
This study presents two machine learning models, namely, the light gradient boosting machine (LightGBM) and categorical boosting (CatBoost), for the first time for predicting flash flood susceptibility (FFS) in the Wadi System (Hurghada, Egypt).
M. Saber   +8 more
semanticscholar   +1 more source

Detection of Flash Flood Inundated Areas Using Relative Difference in NDVI from Sentinel-2 Images: A Case Study of the August 2020 Event in Charikar, Afghanistan

open access: yesRemote Sensing, 2022
On 26 August 2020, a devastating flash flood struck Charikar city, Parwan province, Afghanistan, causing building damage and killing hundreds of people. Rapid identification and frequent mapping of the flood-affected area are essential for post-disaster ...
Mujeeb Rahman Atefi, H. Miura
semanticscholar   +1 more source

Flash Flood Water Depth Estimation Using SAR Images, Digital Elevation Models, and Machine Learning Algorithms

open access: yesRemote Sensing, 2022
In this article, the local spatial correlation of multiple remote sensing datasets, such as those from Sentinel-1, Sentinel-2, and digital surface models (DSMs), are linked to machine learning (ML) regression algorithms for flash floodwater depth ...
Ismail Elkhrachy
semanticscholar   +1 more source

Flash Flood Hazard Mapping Using Landsat-8 Imagery, Ahp, And Gis In The Ngan Sau And Ngan Pho River Basins, North-Central Vietnam

open access: yesGeography, Environment, Sustainability, 2023
Flash floods have been blamed for significant losses and destruction all around the world are widely, including Vietnam, a developing nation that has been particularly hard hit by climate change.
Tien-thanh Nguyen   +3 more
doaj   +1 more source

Evolution, characteristics, and prospects of mountain flash flood disaster prevention and control policies in China [PDF]

open access: yesZiyuan Kexue, 2023
Strengthening and improving the prevention and control of mountain flash floods is an important part of comprehensively promoting the modernization of China’s natural hazard-related disaster prevention and control system and capacity, scientific and ...
WU Zebin, XU Mengmeng, CHU Zhongzhu
doaj   +1 more source

The research status of flash flood warning in China

open access: yesMATEC Web of Conferences, 2018
The article discusses from the disaster mechanism of flash flood to the current situation of early warning system. The formation of flash flood is closely related to rainfall intensity, underlying surface conditions and antecedent soil moisture content ...
Keke Zhao   +3 more
doaj   +1 more source

COMPARATIVE STUDY OF THE FLASH FLOOD WAVES FROM THE SUMMER AND AUTUMN OF 2014 ON BÂRZAVA RIVER IN THE GĂTAIA-PARTOȘ SECTOR [PDF]

open access: yesAerul şi Apa: Componente ale Mediului, 2015
In the summer and autumn of 2014, in the lower basin of Bârzava river, three flash flood waves formed following a large precipitation quantity fallen in the upper river basin as well as in the field area.
IGNEA F.-S. , BIROU AL.-F.
doaj   +1 more source

High-impact floods and flash floods in Mediterranean countries: the FLASH preliminary database [PDF]

open access: yesAdvances in Geosciences, 2010
Abstract. This paper contains a preliminary analysis of flood risk in Mediterranean countries, conducted within the framework of the FLASH European Project. All flood events recorded between 1990 and 2006 in the Mediterranean region have been included in the study.
Llasat   +13 more
openaire   +5 more sources

Flash Flood Risk Analysis Based on Machine Learning Techniques in the Yunnan Province, China

open access: yesRemote Sensing, 2019
Flash flood, one of the most devastating weather-related hazards in the world, has become more and more frequent in past decades. For the purpose of flood mitigation, it is necessary to understand the distribution of flash flood risk.
Meihong Ma   +7 more
doaj   +1 more source

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