by Staff writer
its ain spate, intelligence reports has seat expiry cost from devastating floods inwards Sierra Leone to to a greater extent than than 400 people with hundreds yet missing inwards the stricken capital.
Mass burials were held for mudslide victims on Th alongside the threat of farther disaster.
The Red Cross has seat the expiry cost at 409 in addition to Jens Laerke, spokesman for the United Nations Office for the Coordination of Humanitarian Affairs inwards Geneva, said the cost "may rise", noting the give away of people yet missing.
What could crusade a mudslide?
Mudslides move on when a large amount of H2O causes the rapid erosion of soil on a steep slope.
Rapid snowmelt at the grade of a mount or a flow of intense rainfall tin give notice trigger a mudslide, every bit the dandy book of H2O mixes with soil in addition to causes it to liquefy in addition to movement downhill.
Floods in addition to mudslides are unremarkably caused past times extensive pelting from storms, when the Earth cannot concur the excessive H2O in addition to the H2O flows over ground.
However, floods tin give notice likewise last caused past times tempest surges, or real high tides, when the H2O from the body of body of water floods inland.
Additionally, dam failure or breakage may crusade a torrential amount of H2O the dam was belongings upwards to pour downstream, causing a abrupt flood.
What tin give notice last done?
Both structural in addition to non-structural measures tin give notice last applied to mitigate flooding:
Structural measures include structure of dams for the role of river regulation, overflowing protection dykes to concur dorsum H2O in addition to proper drainage channels.
Non-structural overflowing mitigation measures include:
i. Undertaking river preparation works;
ii. Undertaking soil conservation measures;
iii. Establishment of early on alert system;
iv. Assessment of climatic fourth dimension serial (climatic variability in addition to climate change);
v. Study of the catchment characteristics;
vi. Floodplain mapping; and
vii. Proper delineation of the floodplain.
In general, the best long-term solution to flooding in addition to mudslides could last the zoning of wetlands in addition to provision of incentives for relocation, depending on the type of province use, because all other solutions, sooner or later, volition present their problems.
Dykes disrupt, channels endure deposition, dams are oftentimes insufficient in addition to real expensive to construct.
Though non ever easy, the safest affair to produce inwards fourth dimension of a overflowing alert powerfulness last to pack upwards in addition to relocate! Sumber http://www.dnbstories.com/
its ain spate, intelligence reports has seat expiry cost from devastating floods inwards Sierra Leone to to a greater extent than than 400 people with hundreds yet missing inwards the stricken capital.
Mass burials were held for mudslide victims on Th alongside the threat of farther disaster.
The Red Cross has seat the expiry cost at 409 in addition to Jens Laerke, spokesman for the United Nations Office for the Coordination of Humanitarian Affairs inwards Geneva, said the cost "may rise", noting the give away of people yet missing.
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| Large-scale burials inwards Sierra Leone patch an estimated 600 people rest missing. People decease on to search through tonnes of mud in addition to debris, hoping to uncovering their missing relations. |
What could crusade a mudslide?
Mudslides move on when a large amount of H2O causes the rapid erosion of soil on a steep slope.
Rapid snowmelt at the grade of a mount or a flow of intense rainfall tin give notice trigger a mudslide, every bit the dandy book of H2O mixes with soil in addition to causes it to liquefy in addition to movement downhill.
Floods in addition to mudslides are unremarkably caused past times extensive pelting from storms, when the Earth cannot concur the excessive H2O in addition to the H2O flows over ground.
However, floods tin give notice likewise last caused past times tempest surges, or real high tides, when the H2O from the body of body of water floods inland.
Additionally, dam failure or breakage may crusade a torrential amount of H2O the dam was belongings upwards to pour downstream, causing a abrupt flood.
What tin give notice last done?
Both structural in addition to non-structural measures tin give notice last applied to mitigate flooding:
Structural measures include structure of dams for the role of river regulation, overflowing protection dykes to concur dorsum H2O in addition to proper drainage channels.
Non-structural overflowing mitigation measures include:
i. Undertaking river preparation works;
ii. Undertaking soil conservation measures;
iii. Establishment of early on alert system;
iv. Assessment of climatic fourth dimension serial (climatic variability in addition to climate change);
v. Study of the catchment characteristics;
vi. Floodplain mapping; and
vii. Proper delineation of the floodplain.
In general, the best long-term solution to flooding in addition to mudslides could last the zoning of wetlands in addition to provision of incentives for relocation, depending on the type of province use, because all other solutions, sooner or later, volition present their problems.
Dykes disrupt, channels endure deposition, dams are oftentimes insufficient in addition to real expensive to construct.
Though non ever easy, the safest affair to produce inwards fourth dimension of a overflowing alert powerfulness last to pack upwards in addition to relocate! Sumber http://www.dnbstories.com/