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Dikes

Dikes

  • Disaster-resilient buildings

    Type: 
    Technology
    Objective:

    The primary objective of flood-proofing is to reduce or avoid the impacts of coastal flooding upon structures. This may include elevating structures above the floodplain, employing designs and building materials which make structures more resilient to flood damage and preventing floodwaters from entering structures in the flood zone, amongst other measures.

    The description of this technology originates from Linham and Nicholls (2010).

    Description:

  • Hydro-economic modeling of climate change impacts in Ethiopia

    Type: 
    Publication
    Publication date:

    Ethiopia is susceptible to frequent climate extremes such as disastrous droughts and floods. These disastrous climatic events, which have caused significant adverse effects on the country's economy and society, are expected to become more pronounced in the future under climate change.

  • An uncertain future: law enforcement, national security and climate change

    Type: 
    Publication
    Publication date:
    Objective:

    Climate change has the potential to cause radical changes in lifestyle and mass migration as people seek out ever-diminishing resources. The tensions that will accompany such shifts could be profound as communities react to large influxes of newcomers and people struggle to adapt to ever more severe weather events. This in turn could place an ever-increasing burden on national security forces as they seek to maintain stability domestically and with bordering nations.

  • Agricultural drainage systems

    Type: 
    Technology
    Sectors:
    Objective:

    Description

    Agricultural drainage is carried out by systems that intercept and convey excess water across a plot and dispose of it in a safe location. The water is transported by gravity, in a non-erosive manner, in surface or sub-surface channels. The aim is to control the specific moisture content for each type of crop and avoid losses resulting from excess water in extreme situations.

  • Coastal setbacks

    Type: 
    Technology
    Sectors:
    Objective:

    Coastal setbacks are ‘a prescribed distance to a coastal feature such as the line of permanent vegetation, within which all or certain types of development are prohibited (Cambers, 1998). A setback may dictate a minimum distance from the shoreline for new buildings or infrastructure facilities, or may state a minimum elevation above sea level for development. Elevation setbacks are used to adapt to coastal flooding, while lateral setbacks deal with coastal erosion.

    The description of this technology originates from Linham and Nicholls (2010).

  • Dikes

    Type: 
    Technology
    Sectors:
    Objective:

    The primary function of sea dikes is to protect low-lying, coastal areas from inundation by the sea under extreme conditions (Pilarczyk, 1998a). Dikes are not intended to preserve beaches which may occur in front of the structure or any adjoining, unprotected beaches.

    These structures have a high volume which helps to resist water pressure, sloping sides to reduce wave loadings and crest heights sufficient to prevent overtopping by flood waters. They may also be referred to as dykes, embankments, levees, floodbanks and stopbanks.