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  • The Directive defines the category "lake" as "a body of quiet superficial inland water " (Article 2) and specifies a lower limit of 0.5 km2 when establishing its rates (Annex II). At the level of Spain and based on preliminary CEDEX criteria, all those lakes with an area of ​​more than 50 ha (0.5 km2) or all those with an area of ​​more than 8 ha and exceeding 3 m in depth are included as bodies of water. The Agency through two agreements with research centers has proposed as bodies of water that could be assimilated to the category of lakes: 1 - Lakes and ponds of more than 0.5 ha of surface located at altitudes above 800 m and lakes below this level with a depth of more than 6 m (agreement with the CEAB-CSIC; Agency, 2003d). 2 - Wetlands located at altitudes below 800 and with a depth of less than 6 m (agreement with the UdG; Agency, 2004d). Also included in this category are the reservoirs of the inland basins of Catalonia.

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    The INSPIRE data set of Statistical Units contains the description of the subdivision of the municipalities of Catalonia into districts and census sections in accordance with the technical specifications of INSPIRE Statistical Units. The data set is obtained from the transformation to the INSPIRE model of the data from the Census sections v1.0 of the Institute of Statistics of Catalonia (Idescat) and the Cartographic and Geological Institute of Catalonia (ICGC).

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    The orthophoto is a cartographic document that consists of a vertical aerial image which has been rectified in such a way that the same scale is kept in the entire surface of the image, being a geometric representation on scale of the terrestrial surface. It is a orthophoto with a resolution of 25 cm generated from images with a pixel resolution variable according to the zones. The color orthophoto (OF-25C) provides information about the visible area of the electromagnetic spectrum. Shows the combination of RGB bands that correspond to the Red, Green and Blue channels, a combination called "natural color".

  • In order to develop the Article 5 of the Directive, it is necessary to define in advance the basic river network of the demarcation on which the water bodies will be delimited. To do this, the river network extracted from the 1:50,000 scale topographic base of the Cartographic Institute of Catalonia (ICC, 2002) was used. On this basis, some background has been taken into account and some criteria have been applied that have served to establish the definitive scope of the river network. Background: These backgrounds are based on the following three considerations and sources: - Water Framework Directive: the classification of rivers according to system A of the Directive considers rivers with a drainage basin equal to or greater than 10 km2. - Centro de Estudios Hidrográficos del CEDEX: has restricted the basic hydrographic network based on two conditions: (i) drainage basin equal to or greater than 10 km2; and (ii) an average annual contribution in natural regime greater than 3.15 hm3/year (100 L/s). - Reference stations: regardless of the flow and the drained basin area, the river sections where reference stations are used to determine the reference conditions of certain river types have been considered.

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    CORINE Land Cover data smoothed following the CORILIS methodology. This methodology defines a procedure for smoothing Corine Land Cover data using a variant of the gaussian function called BiWeight. For each CLC class we obtain a probability surface that shows the % of that class within a specific radius. The naming of Corilis layers follows the pattern CORILIS??_R??L?_C?? where R is for Radius, L is for Level and C is for Class. The Level 3 classes are equivalent to the Level 3 classes of Corine. Level 1 classes are a special grouping defined for Environmental Accounting purposes. For example: CORILIS90_R05L3_C1 contains the smoothing results of CLC90 level 3, class 1 "Continous urban fabric" in a 5 km radius. For each pixel of the grid we get a value (ranging from 0 to 100) indicating the % of that class within the radius of 5 km.

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    The INSPIRE data set of Administrative Units contains the description of the territorial limits of the Catalan municipalities in accordance with the technical specifications of INSPIRE Administrative Units. The data set is obtained from the transformation to the INSPIRE model of the data from the Municipal Base of Catalonia 1: 5000 v2.1 of the Directorate General of Local Administration (DGAL) and the Cartographic and Geological Institute of Catalonia (ICGC).

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    The INSPIRE data set of Geographical names contains the toponymy of the territory of Catalonia in accordance with the technical specifications of INSPIRE Geographical names. The data set is obtained from the transformation to the INSPIRE model of the Database of Toponymy of the Cartographic and Geological Institute of Catalonia (ICGC).

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    Regular grid model that contains orthometric altitudes distributed according to a grid of 5 m of side.

  • Delimitations of the areas of geological interest included in the Inventory of Areas of Geological Interest of Catalonia. The boundaries are not final, they are subject to review, so you need to check for updates to this layer of information.

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    The INSPIRE data set of Addresses contains the streets and addresses of the territory of Catalonia in accordance with the technical specifications of INSPIRE Addresses. The data set is obtained from the transformation to the INSPIRE model of the information from the Municipal data base of addresses of Catalonia (BDMAC).