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).

Í markalaginu eru ýmis mörk lands og eru þetta allt flákalög og þau sýna eftirfarandi: skiptingu landsins eftir sveitarfélögum, skiptingu landsins eftir umdæmi sýslumanna, lögregluumdæmi og skiptingu landsins í dómstóla í héraði.

Eldissvæði er svæði sem úthlutað er rekstarleyfishafa. Rekstrarleyfishafi hefur þá heimild til að hafa eldisbúnað til að ala fisk innan þess svæðis skv. skilyrðum rekstrarleyfisins.

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.

Línurnar sýna friðunarsvæði, þar sem eldi laxfiska (fam. salmonidae) í sjókvíum er óheimilt skv. auglýsingu nr. 460/2004.

The main high resolution grassland product is the Grassland layer, a grassland/non-grassland mask for the EEA39 area. This grassy and non-woody vegetation baseline product includes all kinds of grasslands: managed grassland, semi-natural grassland and natural grassy vegetation. It is a binary status layer mapping grassland and all non-grassland areas in 20m and (aggregated) 100m pixel size. Two additional (expert) products complete the high resolution grassland product: the Ploughing Indicator (PLOUGH) and the Grassland Vegetation Probability Index (GRAVPI). While the PLOUGH concentrates on historic land cover features with the aim to indicate ploughing activities in preceding years, the GRAVPI provides a measure of classification reliability. GRAVPI is a 20m pixel size product, mapping on a range of 1-100 the class probability. PLOUGH is a 20m pixel size additional product, mapping from 1-6 the number of years since the last indication of ploughing. A verification of the Grassland 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.

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.

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.

EN: Boundary of Icelandic River Basin Sub unit(s) as reported to WISE on 22.12.2018. A "Sub unit" is a defined area that includes one or more catchments. For international reporting purposes only one Sub unit is used (ID: IS100) which covers the same area as the Icelandic River Basin District. For national management and reporting purposes there are four Sub Units (ID's: IS101, IS102, IS103, IS104). For further description of dataset fields and field values see GML schema here: http://dd.eionet.europa.eu/schemas/WFD2016/GML_SubUnit_2016.xsd IS: Afmörkun íslenskra vatnasvæða miðað við skil inn í WISE upplýsingakerfið þann 22.12.2018. "Vatnasvæði" er landsvæði með einu eða fleiri vatnasviðum. Vegna skýrslugjafar til Evrópusambandsins er aðeins eitt vatnasvæði notað (ID:IS100) sem nær yfir sama svæði og Vatnaumdæmi Íslands. Vegna innlendrar stjórnunar og skýrslugjafar eru fjögur vatnasvæði notuð (IDs: IS101, IS102, IS103, IS104). Nánari lýsing á eigindum og gildum gagnasettsins má finna í GML skema hér: http://dd.eionet.europa.eu/schemas/WFD2016/GML_SubUnit_2016.xsd

Gögnin sýna hvar bráðamóttökur, læknavaktir og heilsugæslustöðvar eru staðsettar á landinu. Um er að ræða samstarfsverkefni Embættis landlæknis og heilsugæslunnar á höfuðborgarsvæðinu.