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)

Þekja (layer) j100v_austurland_gigar_1utg_fl: Flákar sem sýna gjallgíga í jarðlagastafla Austurlands. [Polygon data of scoria cones in Eastern Iceland.}

Þekja (layer) j100v_austurland_steingervingar_1utg_p: Fundarstaðir steingervinga. [Locations with fossils.] Fundarstaðir steingervinga, einkum plöntusteingervinga eða surtabrands. [Location with fossils, exclusvely plant fossils or lignite deposits.]

Útlínur dregnar eftir Landsat 1 gervihnattamyndum frá 1973 og tiltækum uppréttum loftmyndum úr safni Náttúrufræðistofnunar frá áttunda áratug 20. aldar. Útlínur nokkurra jökla voru dregnar eftir Hexagon KH9 gervihnattamyndum.

Útlínur hnitaðar af AMS kortum bandaríska hersins sem byggja á loftmyndum frá árunum 1945 og 1946. Útlínurnar hafa verið uppfærðar á nokkrum stöðum með skönnuðum, uppréttum loftmyndum úr safni Náttúrufræðistofnunar.

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).]

Þekja (layer) j100v_austurland_millilog_1utg_li:: Gjóskulög á Austfjörðum. [Tuff layers in Eastern Iceland.] Línur sýna staðsetningu stærstu gjóskulagana á Austfjörðum. Gjóskulögin eru fengin úr ýmsum kortum og kortlagningu Birgis V. Óskarssonar. Gögn eru flokkuð eftir ÍST120:2012 staðlinum, nema þrjá fitjueigindir: myndunKodi = Heiti myndunarinnar (skammstöfun) myndunIS = Heiti myndunarinnar (á íslenskuc) myndunEN = Heiti myndunarinnart (á ensku) [Lines show the location of largest tuff deposits in Eastern Iceland. The tuff layers are derived from older maps and the mapping of Birgir V. Óskarsson. The data follows the ÍST120:2012 data standard with the three additional feature attributes: myndunKodi = Lithostratigraphic unit (abbreviation) myndunIS = Lithostratigraphic unit (in Icelandic) myndunEN = Lithostratigraphic unit (in English)]

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.

Þekja [layer] j100v_vesturgosbelti_jardgrunnur_1utg_p: Jökulrákir á Vesturgosbelti Íslands. [Glacial striations of the Western Volcanic Zone of Iceland.] Gögn eru flokkuð eftir ÍST120:2012 staðlinum, nema fitjueigindir: jokulrakastefna: stefna jökulráka er mæld í kortlagningu og sýnir skriðstefnu jökuls. aldur: ef fleiri en ein stefna er á rákunum er metinn afstæður aldur: yngri, aldur og aldur02. [The data follows the ÍST120:2012 data standard with these additional feature attributes: jokulrakastefna: indicates the direction of striations found during mapping. aldur: if more than one set of striations is found this indicates the relative age: yngri (younger), aldur (older), and aldur02 (oldest, if 3 sets are present).]

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