Sierra Leone and Hong Kong Flashcards
The mudflow in Sierra Leone happened in…
2017.
The saturated soil flowed down the…
Sugar Loaf mountain and hit the slum areas of Freetown.
Number of poeple died in Sierra Leone was…
1100.
Sierra Leone is LLIC…
(Leas-low…), so it has poor development, due to historical factors and poor neighbours.
Deforestation on Sugar Loaf mountain decreased…
the interception, so more surface runoff.
Slump development on…
the slopes increased the shear stress. No drainage on the slope=more surface runoff and throughflow.
Residents ignored the rule…
not to build on the Sugar Loaf mountain(2014) and it is a national park.
Natural causes of mudflow:
- intense rainfall
- steep topography
The vulnerability of Freetown is…
exacerbated by: diseases, poor sanitation, lack of aid.
Hong Kong has a long history of…
landslides, due to intense precipitation, steep topography and dense human development
The risk of the Domino effect is due to…
gentrification on the slopes, causing building smashing to the next and so on.
In Hong Kong in…
1996, rainstorms triggered landslides and 64 people were killed and 2500 made homeless.
In June 1996 over…
700 landslides were recorded.
(Hong Kong) Vegetation may increase…
the problem as the trees held back many small landslides and allowed larger washouts to occur
Hong Kong consists of…
islands, with natural steep topography >30 degrees.
