Landhelgi Íslands er skilgreind í lögum nr. 41/1979 með síðari breytingum frá 15. október 2021. Heiti laganna er Lög um landhelgi, aðlægt belti, efnahagslögsögu og landgrunn. Í lögunum eru skilgreiningar og útskýringar á aðlægu belti, efnahagslögsögu og landgrunni Íslands: https://www.althingi.is/lagas/nuna/1979041.html Landhelgi Íslands skal afmörkuð af línu sem alls staðar er 12 sjómílur frá grunnlínu. Grunnlína er sett fram sem lína en einnig punktar. Línan er dregin milli punktanna. Aðlægt belti er svæði utan landhelgi (línur). Efnahagslögsaga Íslands er svæði utan landhelgi (línur). Vinsamlega hafið samband við Landhelgisgæslu Íslands vegna nánari upplýsinga.

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)

Vinsamlega hafið samband við Hagstofuna vegna nánari upplýsinga.

Þekja [layer] j100v_vesturgosbelti_berggrunnur_1utg_li: Línur sýna viss og óviss mörk berggrunns og hraunjaðars ásamt hrauntröðum. [Lines showing certain and uncertain boundaries of bedrock and borders of lava fields, including lava channels.] Mörk tilheyra flákagögnum 'ni_j100v Berggrunnur á Vesturgosbelti – 1:100.000' (þekja j100v_vesturgosbelti_berggrunnur_1utg_fl). Nýr kóði fyrir fitjueigindina 'Jarðmyndun og landmótun lausra jarðefna' (jardmLandmJardefna): hram05 = hrauntröð brún. [Boundaries follow the polygon data 'ni_j100v Berggrunnur á Vesturgosbelti – 1:100.000' (layer j100v_vesturgosbelti_berggrunnur_1utg_fl). New code for feature attribute 'Jarðmyndun og landmótun lausra jarðefna' (jardmLandmJardefna): hram05 = lava channel edge.]

Svæða-, staðar- og farvegaskipting fyrir ofanflóð í samræmi við ofanflóðaskráningarkerfi Veðurstofu Íslands. Um er að ræða stigskiptingu (hierarchy) þar sem landinu er skipt niður í staði, hverjum stað svo niður í svæði og innan svæða eru svo afmarkaðir algengir farvegir ofanflóða.

Þekja [layer] j100v_vesturgosbelti_berggrunnurNidurfoll_1utg_fl: Niðurföll í nútímahraunum. [Collapse pits in Holocene lavas.}

Þekja [layer] j100v_vesturgosbelti_berggrunnur_1utg_fl: Gögn fyrir berggrunn ásamt nútímahraunum. [Data showing the bedrock geology, including Holocene lavas.] Berggrunnur er flokkaður eftir aldri, gerð og samsetningu. Gögn eru flokkuð eftir ÍST120:2012 staðlinum, nema fitjueigindir: myndunKodi = stuttur kóði sem táknar gerð bergmyndunar, myndunIS = stutt íslenskt heiti fyrir bergmyndun, myndunEN = stutt enskt nafn á bergmyndun, eldstodNafn = nafn eldstöðvakerfis, kenni = stuttur kóði fyrir hlýskeiðishraun og nútímahraun, aldur = aldursbil, Nýr kóði fyrir fitjueigindina 'Tegund storkubergs' (tegStorkubergs): dbas = dílabasalt. [Bedrock is classified by age, type, and composition. The data follows the ÍST120:2012 data standard with these additional feature attributes: myndunKodi = short code denoting the rock formation type, myndunIS = short Icelandic name for rock formation, myndunEN = short English name for rock formation, eldstodNafn = name of the volcanic system, kenni = short codename for interglacial and postglacial lavas, aldur = age range. New code for feature attribute 'Tegund storkubergs' (tegStorkubergs): dbas = porphyrytic basalt.]

Vinsamlega hafið samband við Hafrannsóknastofnun vegna nánanri upplýsinga.

Þekja (layer) j100v_austurland_berggrunnurMork_1utg_li: Línur sýna þekkt mörk berggrunns. [Lines showing certain boundaries of bedrock.] Tilheyra flákagögn 'ni_j100v Berggrunnur á Austurlandi – 1:100.000' (j100v_austurland_berggrunnur_1utg_fl). [Follows the polygon data 'ni_j100v Berggrunnur á Austurlandi – 1:100.000' (j100v_austurland_berggrunnur_1utg_fl).]

The high resolution imperviousness products capture the percentage and change of soil sealing. Built-up areas are characterized by the substitution of the original (semi-) natural land cover or water surface with an artificial, often impervious cover. These artificial surfaces are usually maintained over long periods of time. A series of high resolution imperviousness datasets (for the 2006, 2009, 2012 and 2015 reference years) with all artificially sealed areas was produced using automatic derivation based on calibrated Normalized Difference Vegetation Index (NDVI). This series of imperviousness layers constitutes the main status layers. They are per-pixel estimates of impermeable cover of soil (soil sealing) and are mapped as the degree of imperviousness (0-100%). Imperviousness change layers were produced as a difference between the reference years (2006-2009, 2009-2012, 2012-2015 and additionally 2006-2012, to fully match the CORINE Land Cover production cycle) and are presented 1) as degree of imperviousness change (-100% -- +100%), in 20m and 100m pixel size, and 2) a classified (categorical) 20m change product. The production of the High Resolution Imperviousness products was coordinated by the European Environment Agency in the frame of the EU Copernicus programme. A verification of the Imperviousness 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.