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Displaying 180 of about 340 resultsA personally identifiable information (PII) breach is a situation where PII is processed in violation of one or more relevant PII protection requirements (ITU, 2018).
Emergency telecommunications failure is an umbrella term for telecommunications of an ‘extraordinary nature’ under abnormal and potentially adverse network conditions (ITU, 2007).
Building collapse is the failure of load-bearing structural elements, causing a building to fall or fail catastrophically / catastrophic failure (adapted from US Department of Labor, no date).
A rock slide is a movement of a mass of soil or rock on an individualized failure surface (Dennis and Didier, 2019).
An avalanche is a mass of snow and ice falling suddenly down a mountain slope and often taking with it earth, rocks and rubble of every description (WMO, 1992).
Icing refers to any deposit or coating of ice on an object caused by the impact of liquid hydrometeors, usually supercooled (WMO, 1992).
A dzud (a Mongolian term that describes ‘severe winter conditions’’, sometimes spelled zud) is a cold-season disaster in which anomalous climatic (i.e., heavy snow and severe cold) and/or land-surface (snow/ ice cover and lack of pasture) conditions lead to reduced accessibility and/or availability of forage/pastures, and ultimately to high livestock mo…
Snow is the precipitation of ice crystals, isolated or agglomerated, falling from a cloud (WMO, 2017).
An ice storm involves the intense formation of ice on objects by the freezing, on impact, of rain or drizzle (WMO, 1992).
Hail is precipitation in the form of particles of ice (hailstones). These can be either transparent, or partly or completely opaque. They are usually spheroidal, conical or irregular in form, and generally 5−50 mm in diameter. The particles may fall from a cloud either separately or agglomerated in irregular lumps (WMO, 2017).
Fog is a suspension of very small, usually microscopic water droplets in the air, reducing visibility at the Earth’s surface (WMO, 2017).
Surface water flooding is that part of the rain which remains on the ground surface during rain and either runs off or infiltrates after the rain ends, not including depression storage (WMO, 2012).
A fluvial flood is a rise, usually brief, in the water level of a stream or water body to a peak from which the water level recedes at a slower rate (WMO, 2012).
Estuarine flooding is flooding over and near coastal areas caused by storm surges and high winds coincident with high tides, thereby obstructing the seaward river flow. Estuarine flooding can be caused by tsunamis in specific cases (WMO, 2011).
Rockfall is a fragment of rock (a block) detached by sliding, toppling, or falling, that falls along a vertical or sub-vertical cliff, and proceeds down slope by bouncing and flying along ballistic trajectories or by rolling on talus or debris slopes (Highland and Bobrowsky, 2008).