The Application of Geomorphological Mapping in the Assessment of Landslide Hazard in Hong Kong

2011 ◽  
pp. 413-441 ◽  
Author(s):  
Steve Parry
Keyword(s):  
Hong Kong ◽  
Landslide Hazard ◽  
Geomorphological Mapping

scholarly journals Characterizing the spatial variations and correlations of large rainstorms for landslide study

2017 ◽  
Vol 21 (9) ◽  
pp. 4573-4589 ◽  
Author(s):  
Liang Gao ◽  
Limin Zhang ◽  
Mengqian Lu
Keyword(s):  
Spatial Distribution ◽  
Hong Kong ◽  
Spatial Correlation ◽  
Hazard Analysis ◽  
Primary Objective ◽  
Landslide Hazard ◽  
Distribution Model ◽  
Hazard Evaluation ◽  
Topographic Effects ◽  
The Impact

Abstract. Rainfall is the primary trigger of landslides in Hong Kong; hence, rainstorm spatial distribution is an important piece of information in landslide hazard analysis. The primary objective of this paper is to quantify spatial correlation characteristics of three landslide-triggering large storms in Hong Kong. The spatial maximum rolling rainfall is represented by a rotated ellipsoid trend surface and a random field of residuals. The maximum rolling 4, 12, 24, and 36 h rainfall amounts of these storms are assessed via surface trend fitting, and the spatial correlation of the detrended residuals is determined through studying the scales of fluctuation along eight directions. The principal directions of the surface trend are between 19 and 43°, and the major and minor axis lengths are 83–386 and 55–79 km, respectively. The scales of fluctuation of the residuals are found between 5 and 30 km. The spatial distribution parameters for the three large rainstorms are found to be similar to those for four ordinary rainfall events. The proposed rainfall spatial distribution model and parameters help define the impact area, rainfall intensity and local topographic effects for landslide hazard evaluation in the future.

scholarly journals Pemetaan Bahaya Longsor Dengan Metode Analitycal Hierarchy Process di Arjuno Welirang, Jawa Timur

2021 ◽  
Vol 15 (1) ◽  
pp. 69-77
Author(s):  
Arief Rachmansyah ◽  
◽  
*, Ardian Baroto ◽  
Ika Meisy Putri Rahmawati ◽  
◽  
...  
Keyword(s):  
Active Volcano ◽  
Landslide Hazard ◽  
Geological Mapping ◽  
Contour Map ◽  
Contour Maps ◽  
Geomorphological Mapping ◽  
Geothermal Potential ◽  
Map Analysis ◽  
Hierarchy Process ◽  
Very High

Indonesia has enormous geothermal potential because most of Indonesia's territory is located in an active volcano route. One of the challenges in developing geothermal energy is that its location is located on the slopes of a Quaternary Volcanoes which is suceptible to landslides. The purpose of the research that has been carried out is to determine the distribution of landslide-hazard areas on the western slopes of the Arjuno-Welerang Volcano. The analysis was performed using the Analytical Hierarchy Process method based on morphological, geological and structural geological parameters. Geomorphological mapping was carried out by contour map analysis, then classified based on morphometry and morphogenesis. Geological mapping uses the principle of volcanostratigraphy, while mapping of geological structures is done by analyzing contour maps made by Digital Evalation Model and field checking. The high and very high landslide hazard zones are scattered along the fault zone, while the very high landslide hazard areas are located in the ancient crater valleys.

Landslide hazard analysis for Hong Kong using landslide inventory and GIS

2004 ◽  
Vol 30 (4) ◽  
pp. 429-443 ◽  
Author(s):  
K.T. Chau ◽  
Y.L. Sze ◽  
M.K. Fung ◽  
W.Y. Wong ◽  
E.L. Fong ◽  
...  
Keyword(s):  
Hong Kong ◽  
Hazard Analysis ◽  
Landslide Hazard ◽  
Landslide Inventory

scholarly journals Characterizing the spatial variations and correlations of large rainstorms for landslide study

2017 ◽  
Author(s):  
Liang Gao ◽  
Limin Zhang ◽  
Mengqian Lu
Keyword(s):  
Spatial Distribution ◽  
Hong Kong ◽  
Spatial Correlation ◽  
Hazard Analysis ◽  
Primary Objective ◽  
Landslide Hazard ◽  
Distribution Model ◽  
Hazard Evaluation ◽  
Topographic Effects ◽  
The Impact

Abstract. Rainfall is the primary trigger of landslides in Hong Kong; hence rainstorm spatial distribution is an important piece of information in landslide hazard analysis. The primary objective of this paper is to quantify spatial correlation characteristics of three landslide-triggering large storms in Hong Kong. The spatial maximum rolling rainfall is represented by a rotated ellipsoid trend surface and a random field of residuals. The maximum rolling 4-h, 12-h, 24-h and 36-h rainfall amounts of these storms are assessed via surface trend fitting, and the spatial correlation of the detrended residuals is determined through studying the scales of fluctuation along eight directions. The principal directions of the surface trend are between 19° and 43°, and the major and minor axis lengths are 83–386 km and 55–79 km, respectively. The scales of fluctuation of the residuals are found between 5 km and 30 km. The spatial distribution parameters for the three large rainstorms are found to be similar to those for four ordinary rainfall events. The proposed rainfall spatial distribution model and parameters help define the impact area, rainfall intensity and local topographic effects for landslide hazard evaluation in the future.

Verocytotoxin-producing Escherichia coli infection: The Hong Kong experience

1998 ◽  
Vol 13 (11-s4) ◽  
pp. S289-S293 ◽  
Author(s):  
SSY WONG ◽  
WC YAM ◽  
PHM LEUNG ◽  
PCY WOO ◽  
KY YUEN
Keyword(s):  
Escherichia Coli ◽  
Hong Kong ◽  
Escherichia Coli Infection
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