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.

ELF Geographical Names (GN) Iceland is one of 12 themes in the European Location Project (ELF). The purpose of ELF is to create harmonised cross-border, cross-theme and cross-resolution pan-European reference data from national contributions. The goal is to provide INSPIRE-compliant data for Europe. A description of the ELF (European Location Project) is here: http://www.elfproject.eu/content/overview Encoding: INSPIRE version 4

CORINE Land Cover (CLC) 2024 and CLC Change 2018-2024 are datasets produced under the Copernicus Land Monitoring Service, part of the European Union's Earth observation programme, formerly known as GMES (Global Monitoring for Environment and Security). CORINE Land Cover provides harmonised and consistent information on land cover and land cover changes across Europe. The programme was initiated in 1985, with the first reference year being 1990, and has since established a long-term time series of land cover information through successive updates for the reference years 2000, 2006, 2012, 2018, and now 2024. CLC products are derived through the visual interpretation of satellite imagery by national teams from EEA member and cooperating countries, following a common methodology and nomenclature. The dataset is based on a hierarchical three-level classification system comprising 44 land cover classes. Key mapping parameters include a minimum mapping unit (MMU) of 25 hectares for status layers, a minimum width of 100 metres for linear features, and a minimum mapping unit of 5 hectares for land cover change (LCC) mapping. 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/

Bauganet jarðar byggist á ímynduðu hnitakerfi sem lagt er yfir jarðarkúluna og er notað til að gefa upp nákvæma staðsetningu á yfirborði jarðar. Breiddarbaugar eru notaðir til þess að ákvarða staðsetningu til norðurs eða suðurs og lengdarbaugar ákvarða staðsetningu til austurs eða vesturs. Hver gráða á lengdarbaug er að meðaltali 111,2 kílómetrar á lengd (um það bil 60 sjómílur) svo til að fá meiri nákvæmni er henni ýmist skipt í hundraðshluta (kommustafi) eða mínútur (60 hluta) og sekúndur (60*60 eða 360 hluta). Dæmi um hnit í bauganeti jarðar er 48°51′29″N, 2°17′40″A (Eiffelturninn í París) þar sem ' eru mínútur og " sekúndur.

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