scholarly journals Vorticity and moisture budget analyses on a plateau vortex that cause an intense rainfall event within the Qaidam Basin

2021 ◽  
Author(s):  
Wan‐Li Li ◽  
Ru‐Di Xia ◽  
Qi Zhong ◽  
Ya‐Qiang Wang
Keyword(s):  
Qaidam Basin ◽  
Rainfall Event ◽  
Moisture Budget ◽  
Intense Rainfall

scholarly journals Comparison between different approaches to modeling shallow landslide susceptibility: a case history in Oltrepo Pavese, Northern Italy

2013 ◽  
Vol 13 (3) ◽  
pp. 559-573 ◽  
Author(s):  
D. Zizioli ◽  
C. Meisina ◽  
R. Valentino ◽  
L. Montrasio
Keyword(s):  
Shallow Landslide ◽  
Northern Italy ◽  
Shallow Landslides ◽  
Rainfall Event ◽  
Aerial Photographs ◽  
Intense Rainfall ◽  
Field Surveys ◽  
Ex Post ◽  
Physically Based ◽  
Physically Based Models

Abstract. On the 27 and 28 April 2009, the area of Oltrepo Pavese in northern Italy was affected by a very intense rainfall event that caused a great number of shallow landslides. These instabilities occurred on slopes covered by vineyards or recently formed woodlands and caused damage to many roads and one human loss. Based on aerial photographs taken immediately after the event and field surveys, more than 1600 landslides were detected. After acquiring topographical data, geotechnical properties of the soils and land use, susceptibility analysis on a territorial scale was carried out. In particular, different physically based models were applied to two contiguous sites with the same geological context but different typologies and sizes of shallow landslides. This paper presents the comparison between the ex-post results obtained from the different approaches. On the basis of the observed landslide localizations, the accuracy of the different models was evaluated, and the significant results are highlighted.

scholarly journals Comparison of event landslide inventories: the Pogliaschina catchment test case, Italy

2014 ◽  
Vol 14 (7) ◽  
pp. 1749-1759 ◽  
Author(s):  
A. C. Mondini ◽  
A. Viero ◽  
M. Cavalli ◽  
L. Marchi ◽  
G. Herrera ◽  
...  
Keyword(s):  
Rainfall Event ◽  
Landslide Inventory ◽  
Aerial Photographs ◽  
Test Case ◽  
Intense Rainfall ◽  
Visual Interpretation ◽  
Remotely Sensed Data ◽  
Field Surveys ◽  
Very High ◽  
Abstract Event

Abstract. Event landslide inventory maps document the extent of populations of landslides caused by a single natural trigger, such as an earthquake, an intense rainfall event, or a rapid snowmelt event. Event inventory maps are important for landslide susceptibility and hazard modelling, and prove useful to manage residual risk after a landslide-triggering event. Standards for the preparation of event landslide inventory maps are lacking. Traditional methods are based on the visual interpretation of stereoscopic aerial photography, aided by field surveys. New and emerging techniques exploit remotely sensed data and semi-automatic algorithms. We describe the production and comparison of two independent event inventories prepared for the Pogliaschina catchment, Liguria, Northwest Italy. The two inventories show landslides triggered by an intense rainfall event on 25 October 2011, and were prepared through the visual interpretation of digital aerial photographs taken 3 days and 33 days after the event, and by processing a very-high-resolution image taken by the WorldView-2 satellite 4 days after the event. We compare the two inventories qualitatively and quantitatively using established and new metrics, and we discuss reasons for the differences between the two landslide maps. We expect that the results of our work can help in deciding on the most appropriate method to prepare reliable event inventory maps, and outline the advantages and the limitations of the different approaches.

scholarly journals Synoptic analysis of an intense rainfall event in Paraíba do Sul river basin in southeast Brazil

2017 ◽  
Vol 25 (1) ◽  
pp. 66-77 ◽  
Author(s):  
Camila Silva Brasiliense ◽  
Claudine Pereira Dereczynski ◽  
Prakki Satyamurty ◽  
Sin Chan Chou ◽  
Victor Rander da Silva Santos ◽  
...  
Keyword(s):  
River Basin ◽  
Rainfall Event ◽  
Intense Rainfall ◽  
Synoptic Analysis ◽  
Southeast Brazil ◽  
Paraíba Do Sul River

Response of Terraced Slopes to a Very Intense Rainfall Event and Relationships with Land Abandonment: A Case Study from Cinque Terre (Italy)

2017 ◽  
Vol 29 (3) ◽  
pp. 630-642 ◽  
Author(s):  
Pierluigi Brandolini ◽  
Andrea Cevasco ◽  
Domenico Capolongo ◽  
Giacomo Pepe ◽  
Francesco Lovergine ◽  
...  
Keyword(s):  
Rainfall Event ◽  
Land Abandonment ◽  
Intense Rainfall ◽  
Terraced Slopes ◽  
Cinque Terre
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