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The scale of dBZ values can be seen along the bottom of the image. dBZ is a logarithmic dimensionless technical unit used in radar.It is mostly used in weather radar, to compare the equivalent reflectivity factor (Z) of a remote object (in mm 6 per m 3) to the return of a droplet of rain with a diameter of 1 mm (1 mm 6 per m 3). [1]
The calculated averaged was called the Amsterdams Peil ("Amsterdam level", AP) and used to calculate the minimum height of the sea dykes, which he set at "9 feet and 5 inches" (2.67 m) above AP. [2] In 1850, the datum was used at several places in Belgium, and in 1874 the German government adopted the datum for first-order levelling. [3]
About 12 million m 3 of sand are deposited yearly on the beaches and below the waterline in front of the coast. [11] The Stormvloedwaarschuwingsdienst (SVSD; Storm Surge Warning Service) makes a water level forecast in case of a storm surge and warns the responsible parties in the affected coastal districts. These can then take appropriate ...
Het 4e gymnasium; Ignatiusgymnasium; Inholland University of Applied Sciences; International School of Amsterdam; Islamitisch College Amsterdam; IVKO (Idividueel Voortgezet Kunstzinnig Onderwijs) Metis Montessori Lyceum; Montessori Lyceum Amsterdam; Osdorpse Montessorischool; Pieter Nieuwland College; ROC van Amsterdam; Spinoza Lyceum; Vossius ...
The Afsluitdijk (literally translated: shut-off-dyke) was completed in 1932, thereby shutting off the Zuiderzee (lit: Southern Sea) from the North Sea. [4] Until then, the Zuiderzee had been a large bay south of the North Sea which gave maritime access to five provinces of The Netherlands, and particularly during the Dutch Golden Age provided a protected entrance and exit for the harbour of ...
The storm surge barrier closes only when the sea-level is expected to rise 3 metres above mean sea level. Under normal conditions, the estuary's mouth is open, and salt water flows in and out with the tide. As a result of the change, the weak dikes along the Oosterschelde needed to be strengthened. Over 200 km of the dike needed new revetments.
The IJsselmeer [a] (Dutch: [ˌɛisəlˈmeːr] ⓘ; West Frisian: Iselmar, Dutch Low Saxon: Iesselmeer), also known as Lake IJssel in English, [3] is a closed-off freshwater lake in the central Netherlands bordering the provinces of Flevoland, North Holland and Friesland. It covers an area of 1,100 km 2 (420 sq mi) with an average depth of 4.5 m ...
[3] Sneek is situated in Southwest Friesland, close to the Sneekermeer, and is well known for its canals, the Waterpoort (Watergate, the symbol of the city), and watersports (hosting the annual Sneekweek, the largest sailing event on inland European waterways). Sneek is one of the Friese elf steden ("Eleven cities of Friesland").