Ræktunarsvæði er afmarkað svæði sjávar nægjanlega stórt til að rúma þann ræktunarbúnað sem notaður er á viðkomandi svæði. Yfirleitt er um að ræða línur sem strekktar eru á milli flot bauja eða sérstaka ræktunarfleka með lóðréttar ræktunarlínur fáeina metra niður undir yfirborð sjávar . Svæðið er merkt með löglegum sjómerkjum þannig að sjófarendur eiga að geta varast þau, enda einnig merkt inn sjókort Landhelgisgæslunnar. Einungis er ræktuð Bláskel (Kræklingur).

Kjördæmi eru afmörkuð landsvæði sem mynda einn af grunnþáttum kosningakerfisins. Framboðslistar eru lagðir fram fyrir hvert og eitt kjördæmi þannig að kjósendur í sama kjördæminu geta valið á milli sömu framboðslistanna og kjörnir fulltrúar hljóta þar umboð sitt til þingsetu. Kjördæmaskipulagið og fjöldi kjósenda í hverju þeirra liggur til grundvallar þegar þingsætum er úthlutað eftir þingkosningar. Þar sem kjördæmaskipulagið er ráðandi fyrir vægi atkvæða kjósenda hefur það mikil áhrif á það hvaða frambjóðendur fá sæti á þingi að loknum kosningum. Kjördæmaskipulagið er því meðal þess sem oft hefur orðið að deiluefni. Þegar gerðar voru á því verulegar breytingar kostuðu þær jafnan pólitísk átök og allar hafa þær þýtt málamiðlanir milli ólíkra sjónarmiða. Tekið af vef Alþingis: https://www.althingi.is/thingmenn/althingiskosningar/kosningar-og-kosningaurslit/kjordaemaskipulagid/

Landinu skal skipt upp í eftirfarandi heilbrigðisumdæmi, sbr. reglugerð 387/2015: Heilbrigðisumdæmi höfuðborgarsvæðisins. Heilbrigðisumdæmi Vesturlands. Heilbrigðisumdæmi Vestfjarða. Heilbrigðisumdæmi Norðurlands. Heilbrigðisumdæmi Austurlands. Heilbrigðisumdæmi Suðurlands. Heilbrigðisumdæmi Suðurnesja. Í heilbrigðisumdæmum landsins starfa eftirfarandi heilbrigðisstofnanir: Heilsugæsla höfuðborgarsvæðisins, innan heilbrigðisumdæmis höfuðborgarsvæðisins. Heilbrigðisstofnun Vesturlands, innan heilbrigðisumdæmis Vesturlands. Heilbrigðisstofnun Vestfjarða, innan heilbrigðisumdæmis Vestfjarða. Heilbrigðisstofnun Norðurlands, innan heilbrigðisumdæmis Norðurlands. Heilbrigðisstofnun Austurlands, innan heilbrigðisumdæmis Austurlands. Heilbrigðisstofnun Suðurlands, innan heilbrigðisumdæmis Suðurlands. Heilbrigðisstofnun Suðurnesja, innan heilbrigðisumdæmis Suðurnesja.

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)

This data includes all defined hiking trails within Vatnajökull National Park, and selected trails near the park. The trails are drawn from hiking maps that the park has published since it was founded in 2008. The maps have been updated regularly since, last update was in 2019, (Snæfell area and a large part of the western region). These hiking maps can be viewed by selecting “Hiking map, click on frame” in the Vatnajökull National Park Mapview, (see link below).

EN: Groundwaterbodies in Iceland as reported to WISE on 22.12.2018. "Groundwater" means all water which is below the surface of the ground in the saturation zone and in direct contact with the ground or subsoil. For further description of dataset fields and field valuessee GML schema here: http://dd.eionet.europa.eu/schemas/WFD2016/GML_GroundWaterBody_2016.xsd IS: Grunnvatnshlot á Íslandi miðað við skil inn í WISE upplýsingakerfið þann 22.12.2018. "Grunnvatn" merkir vatn, kalt eða heitt, sem er neðan jarðar í samfelldu lagi, kyrrstætt eða rennandi, og fyllir að jafnaði allt samtengt holrúm í viðkomandi jarðlagi. Nánari lýsing á eigindum og gildum gagnasettsins má finna í GML skema hér. Um er að ræða grunnvatnshlot sem notuð eru til að gefa upp ástand vatns á Íslandi. Nánari lýsing á eigindum og gildum gagnasettsins má finna í GML skema hér: http://dd.eionet.europa.eu/schemas/WFD2016/GML_GroundWaterBody_2016.xsd

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 Institute of Nature Research during autumn of 2018 and the data and resulting report are made available on the NLSI websites.

Umsóknin um Þingvelli á heimsminjaskrá var lögð fram í febrúar 2003 og var hún samþykkt á fundi heimsminjanefndar UNESCO í júlí 2004. Þingvellir eru þjóðgarður sem var með lögum stofnaður árið 1930.

The Urban Atlas provides pan-European comparable land use and land cover data for Functional Urban Areas (FUA). The Street Tree Layer (STL) is a separate layer from the Urban Atlas 2012 LU/LC layer produced within the level 1 urban mask for each FUA. It includes contiguous rows or a patches of trees covering 500 m² or more and with a minimum width of 10 meter over "Artificial surfaces" (nomenclature class 1) inside FUA (i.e. rows of trees along the road network outside urban areas or forest adjacent to urban areas should not be included). Urban Atlas is a joint initiative of the European 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.

EuroBoundaryMap is a seamless geo-database at the scale 1:100 000 covering 55 countries. It contains geometry, names and codes of administrative and statistical units continuously updated by the members of EuroGeographics, the national mapping and cadastral authorities (NMCAs) of Europe. Updated annually. Datasets in EBM: The EBM dataset was derived from the Icelandic National Database IS 50V, which is at the scale 1:50.000. The generalization has been applied in form of smooth polygon and simplify polygon that ensured the required resolution of the data for the EBM 1: 100 000 scale. The topological relations of the line and area features were ensured. Administrative Units includes: AdministrativeBoundary a line layer containing the demarcations outlining administrative units. AdministrativeUnit_1 a polygon layer containing the national administrative hierarchy, Level 1 (republic). AdministrativeUnit_2 a polygon layer containing the national administrative hierarchy, Level 2 (municipalities). Residence of Authority a point layer containing the administrative centres of all administrative levels. BasicGeometry includes: EBM_A a polygon layer containing administrative areas. Here are the basic components on which administrative units of all hierarchical levels, as well as all statistical layers, are composed. EBM_P a point layer meant for labelling purposes. Label points are located within the main area of the administrative units on lowest level. StatisticalUnits includes: LAU a polygon layer = Local Administrative Unit. NUTS_1 a polygon layer = Nomenclature of Territorial Units for Statistics (whole country) NUTS_2 a polygon layer NUTS_3 a polygon layer = Nomenclature of Territorial Units for Statistics (capital area, rural areas) Tables in EBM: CountryCodes = all countries have unique country codes (icc). EBM_CHR = country codes of those countries where the language is used in alphabetical order delimited by #. EBM_coAdministered = Relationship between administrative unit and its co-administering administrative units on the same hierarchical level. A few countries have special areas with shared administrative units. EBM_ISN = designations of administrative hierarchical levels EBM_NAM = names of administrative units EBM_NUTS = Relationship between the SHN codes of administrative units on lowest national administrative level and corresponding statistical codes.