cl_maintenanceAndUpdateFrequency

asNeeded

115 record(s)
 
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  • Categories  

    Riparian zones represent transitional areas occurring between land and freshwater ecosystems, characterised by distinctive hydrology, soil and biotic conditions and strongly influenced by the stream water. They provide a wide range of riparian functions (e.g. chemical filtration, flood control, bank stabilization, aquatic life and riparian wildlife support, etc.) and ecosystem services. The Riparian Zones products will support the objectives of several European legal acts and policy initiatives, such as the EU Biodiversity Strategy to 2020, the Habitats and Birds Directives and the Water Framework Directive. Land Cover/Land Use (LC/LU) classification is tailored to the needs of biodiversity monitoring in a tailored buffer zone along large and medium-sized European rivers (with Strahler levels 3-8 derived from EU-Hydro). LC/LU is extracted from VHR satellite data and other available data in a buffer zone of selected rivers. The classes follow the pre-defined nomenclature on the basis of MAES typology of ecosystems (Level 1 to Level 4) and Corine Land Cover, providing 80 distinct thematic classes with a Minimum Mapping Unit (MMU) of 0.5 ha and a Minimum Mapping Width (MMW) of 10 m. The production of the Riparian Zones products was coordinated by the European Environment Agency in the frame of the EU Copernicus programme.

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    Útbreiðsla landsela (Phoca vitulina) og talningagögn 1980-2018. Útbreiðsla útsela (Halichoerus grypus) og talningagögn 1982-2017. [Seal haul-outs around Iceland]. Fjögur flákalög sem sýna kortlagningu 430 landselslátra á 93 talningasvæðum (ni_d25v_landselir_1980_2018_selalatur_fl, ni_d25v_landselir_1980_2018_talningarsvaedi_fl) og 86 útselslátra á 19 talningasvæðum (ni_d25v_utselir_1982_2017_selalautur_fl, ni_d25v_utselir_1982_2017_talningarsvaedi_fl). Talningagögn segja til um fjölda sela á hverju talningasvæði. Selir eru taldir á nokkurra ára fresti og gefur ágæta mynd af breytingum í stofnstærð og umfangi selalátra. Landselir eru taldir síðsumars en útselir að hausti. Nánari skýringar á aðferðum við selatalningar og stofnmat er að finna í Fjölriti 56. Látur eru strandsvæði sem selir leita á til að kæpa, sinna uppeldi kópa, hafa feldskipti og hvílast. Orðið selalátur vísar hér til smæstu samfelldu spildanna þar sem selir halda til. Talningasvæði er aftur á móti víðtækara safnheiti sem oftast nær yfir mörg smærri selalátur. Nákvæmni kortlagningu selalátra miðast við mælikvarða 1:25.000, en nákvæmni talningasvæða er um 1:250.000. [General overview of the seal haul-out locations around Iceland for harbour seals (Phoca vitulina) and grey seals (Halichoerus grypus). The harbour seal population has been monitored with direct counts (aerial censuses) since 1980 and the grey seal population since 1982. Both feature classes 'latur' show the haul-outs (Icelandic: látur) for each species. The haul-outs are grouped into counting zones (Icelandic: talningarsvæði) and both feature classes 'talningarsvaedi' show the associated population counts.] .

  • Categories  

    The high resolution forest product consists of three types of (status) products and additional change products. The status products are available for the 2012 and 2015 reference years: 1. Tree cover density providing level of tree cover density in a range from 0-100% 2. Dominant leaf type providing information on the dominant leaf type: broadleaved or coniferous 3. A Forest type product. The forest type product allows to get as close as possible to the FAO forest definition. In its original (20m) resolution it consists of two products: 1) a dominant leaf type product that has a MMU of 0.5 ha, as well as a 30% tree cover density threshold applied, and 2) a support layer that maps, based on the dominant leaf type product, trees under agricultural use and in urban context (derived from CLC and high resolution imperviousness 2009 data). For the final 100m product trees under agricultural use and urban context from the support layer are removed. The high resolution forest change products comprise a simple tree cover density change product for 2012-2015 (% increase or decrease of real tree cover density changes). A verification of the Dominant Leaf Type layer was performed by the National Land Survey of Iceland during autumn of 2018 and the data and resulting report are made available on the NLSI websites.

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    Poligon data for buildings in Reykjavík, the capital city of Iceland. The data does not cover the whole country.

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    The European Urban Atlas provides reliable, inter-comparable, high-resolution land use and land cover data for 800 Functional Urban Area (FUA) for the 2012 reference year in EEA39 countries. The spatial data can be downloaded together with a map for each FUA covered and a report with the metadata for the respective area. Additional information (product description, mapping guidance and class description) can be found here: https://land.copernicus.eu/user-corner/technical-library/urban-atlas-2012-mapping-guide-new Commission Directorate-General for Regional and Urban Policy and the Directorate-General for Enterprise and Industry in the frame of the EU Copernicus programme, with the support of the European Space Agency and the European Environment Agency.

  • Categories  

    The high resolution forest product consists of three types of (status) products and additional change products. The status products are available for the 2012 and 2015 reference years: 1. Tree cover density providing level of tree cover density in a range from 0-100% 2. Dominant leaf type providing information on the dominant leaf type: broadleaved or coniferous 3. A Forest type product. The forest type product allows to get as close as possible to the FAO forest definition. In its original (20m) resolution it consists of two products: 1) a dominant leaf type product that has a MMU of 0.5 ha, as well as a 30% tree cover density threshold applied, and 2) a support layer that maps, based on the dominant leaf type product, trees under agricultural use and in urban context (derived from CLC and high resolution imperviousness 2009 data). For the final 100m product trees under agricultural use and urban context from the support layer are removed. The high resolution forest change products comprise a simple tree cover density change product for 2012-2015 (% increase or decrease of real tree cover density changes). A verification of the Tree Cover Density layer was performed by the National Land Survey of Iceland during autumn of 2018 and the data and resulting report are made available on the NLSI websites.

  • Categories  

    Pointdata for addresses in Iceland. Data derived from the Icelandic access address register for ELF.

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    Smásvæði Ísland er dreifbýlt land, en þéttbýlt á höfuðborgarsvæðinu. Hefðbundin skipting landsins í landsvæði og sveitarfélög býður ekki upp á samanburðarhæf svæði hvað varðar hagskýrslugerð. Hagstofan hefur því aukið við flokkunarkerfi fyrir hagskýrslusvæði með því að bæta við smásvæðum sem hafa að meðaltali 1.700 til 1.800 íbúa. Smásvæðin mynda fimmta stigið í flokkunarkerfi, með því að hluta talningarsvæðin frekar niður. Alls eru smásvæðin 206 með rúmlega 1.700 manns meðalíbúafjölda, og íbúafjöldanum haldið á bilinu 900 til 3.500 manns, en sem næst meðaltalinu. Þrepin í flokkunarkerfinu eru þessi. 1 - Ísland allt 2 - Tvö hagskýrslusvæði (NUTS3) – höfuðborgarsvæði og landsbyggð 3 - Fjórir landshlutar – tveir á höfuðborgarsvæðinu og tveir á landsbyggðinni 4 - Alls 42 talningarsvæði – 13 í Reykjavík, 11 í Nágrenni Reykjavíkur, 9 á Suðursvæði og 9 á Norðursvæði. 5 - Alls 206 smásvæði – hverju talningarsvæði skipt upp í 2 til 11 smásvæði. Með smásvæðaskiptingunni verður mögulegt að birta ítarlegar hagskýrslur fyrir smærri svæði en áður án þess að þurfa að sleppa úr svæðum eða eyða tölum vegna fámennis. Smásvæðin eru skilgreind vegna þarfa manntalsins 2021, en einnig hefur verið gerð sérstök útgáfa fyrir manntalið 2011, með 183 svæðum sem fylgja að mestu sömu mörkum. Smásvæðaflokkunin var unnin í samstarfi við Byggðastofnun, með fjárhagslegum stuðningi frá Evrópusambandinu. Þá naut Hagstofan aðstoðar Landmælinga Íslands ásamt afnotum af gögnum frá Landmælingum og Mílu ehf. -------------------------------------------------------------------------------------------------------------------------------------- Minor Statistical Output Areas (MSOA) Due to the sparsely populated country and huge differences in the population sizes of the administrative units, Statistics Iceland has added a new small area level to the hierarchical regional classification in preparation for the 2021 Census. The new level is labeled as Minor Statistical Output Areas (MSOA). There are in total 206 MSOA defined, with an average population in the range 1,700 to 1,800 persons and no area having less population than 900 persons, and no area exceeding 3,500. There are 5 steps in the Regional classification: 1 - Iceland 2 - Two NUTS3 Statistical regions 3 - Four Statistical Regions – 2 in the capital region and 2 in the rural areas 4 - Forty-two (42) Statistical Output Areas (SOA) – 42 areas, 13 in Reykjavik, 11 in the Reykjavik surrounding areas, 9 in the South Region, and 9 in the North region 5 - Two hundred and six (206) Minor Statistical Output Areas (MSOA) –each SOA partitioned further into 2 to 11 MSOA. With the help of the Minor Statistical Output Areas Statistics Iceland is able to publish detailed statistics for smaller areas than previously possible without skipping areas or deleting data due to disclosure concerns. While the MSOA are defined in preparation for the 2021 Census of the Population and Housing, a special version has been developed for classifying data in the 2011 Census, with 183 MSOA, which are but for 23 areas identical to the 2021 version. The MSOA were developed with financial aid from the European Commission, in cooperation with the Icelandic Regional Development Institution and the assistance of the National Land Survey of Iceland and Míla ehf.

  • Categories  

    Corine Land Cover (CLC) 2018 and CLC change 2012-2018 are two of the datasets produced within the frame of the Initial Operations of the Copernicus programme (the European Earth monitoring programme previously known as GMES) on land monitoring.Corine Land Cover (CLC) provides consistent information on land cover and land cover changes across Europe. This inventory was initiated in 1985 (reference year 1990) and established a time series of land cover information with updates in 2000, 2006. 2012 and now 2018. CLC products are based on photointerpretation of satellite images by national teams of participating countries - the EEA member and cooperating countries – following a standard methodology and nomenclature with the following base parameters: 44 classes in the hierarchical three level Corine nomenclature; minimum mapping unit (MMU) for status layers is 25 hectares; minimum width of linear elements is 100 metres; minimum mapping unit (MMU) for Land Cover Changes (LCC) for the change layers is 5 hectares. The resulting national land cover inventories are further integrated into a seamless land cover map of Europe. Land cover and land use (LCLU) information is important not only for land change research, but also more broadly for the monitoring of environmental change, policy support, the creation of environmental indicators and reporting. CLC datasets provide important datasets supporting the implementation of key priority areas of the Environment Action Programmes of the European Union as protecting ecosystems, halting the loss of biological diversity, tracking the impacts of climate change, assessing development in agriculture and implementing the EU Water Framework Directive, among others. More about the Corine Land Cover (CLC) and Copernicus land monitoring data in general can be found at http://land.copernicus.eu/

  • Categories  

    Riparian zones represent transitional areas occurring between land and freshwater ecosystems, characterised by distinctive hydrology, soil and biotic conditions and strongly influenced by the stream water. They provide a wide range of riparian functions (e.g. chemical filtration, flood control, bank stabilization, aquatic life and riparian wildlife support, etc.) and ecosystem services. The Riparian Zones products support the objectives of several European legal acts and policy initiatives, such as the EU Biodiversity Strategy to 2020, the Habitats and Birds Directives and the Water Framework Directive. Green Linear Elements (GLE) are ecologically significant, structural landscape elements which act as important dispersion vectors of biodiversity. GLEs comprise hedgerows and lines of trees and offer a wide range of ecosystem services: they are linked to both landscape richness and fragmentation of habitats, with a direct potential for restoration, and contribute also to hazard protection. Green linear elements form part of the Green Infrastructure and are specifically addressed in the EU Biodiversity Strategy 2020. The GLE product provides reliable and detailed geospatial information on the occurrence and spatial distribution of: Small linear vegetation features such as hedgerows, scrub and tree rows with a minimum length of 100m and a width of up to 10m; Isolated patches of trees and scrub with a size between 500 m² and 0.5 ha. Green linear elements including trees and hedgerows with 100m minimum length and 500 m² Minimum Mapping Unit (MMU)