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    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 National Land Survey of Iceland during autumn of 2018 and the data and resulting report are made available on the NLSI websites.

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    Um er að ræða fjarkönnunargögn úr gervitunglinu Rapideye. Þetta eru vinnugögn fyrir tilraunaverkefnið CAP 40 myndir með 5 böndum á sýnilegu og innrauðu sviði og 5m punktstærð þekja allt landið. Myndirnar eru frá árunum 2011-2012.

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    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 Dominant Leaf Type layer was performed by the National Land Survey of Iceland during autumn of 2018 and the data and resulting report are made available on the NLSI websites.

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    The combined Water and Wetness product is a thematic product showing the occurrence of water and wet surfaces over the period from 2009 to 2015. Two products are available: o The main Water and Wetness (WAW) product with defined classes of (1) permanent water, (2) temporary water, (3) permanent wetness and (4) temporary wetness. o The additional expert product: Water & Wetness Probability Index (WWPI) The products show the occurrence of water and indicate the degree of wetness in a physical sense, assessed independently of the actual vegetation cover and are thus not limited to a specific land cover class and their relative frequencies. A verification of the Water and Wetness layer was performed by the National Land Survey of Iceland during autumn of 2018 and the data and resulting report are made available on the NLSI websites.

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    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 National Land Survey of Iceland during autumn of 2018 and the data and resulting report are made available on the NLSI websites.

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    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 National Land Survey of Iceland during autumn of 2018 and the data and resulting report are made available on the NLSI websites.

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    Um er að ræða annars vegar myndir af Reykjadal á Norðurlandi sem þekja 660 km2 og hins vegar er um að ræða mynd af Orustustöðum rétt austan við Kirkjubæjarklaustur sem þekur 25 km2. Um er að ræða myndir í 5 böndum, RGB, innrautt og pan band. Greinihæfnin er 50 cm, þ.e. hver myndeining er 50 cm. Nákvæmni í láréttri staðsetningu myndanna er talin betri en 2 m. Myndirnar úr Reykjadal eru uppréttar en myndin af Orustustöðum var staðsett (rectified) miðað við vegi og Spot5 mósaik LMÍ. Myndirnar af Reykjadal eru teknar 2.9.2010 úr gervitungli GeoEye-1 og myndin af Orustustöðum er tekin 21.8.2014 úr gervitungli GeoEye-1.

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    WorldView-2 er í flokki VHR (Very high resolution) fjarkönnunartungla með komið hefur verið verið á braut um jörðu. WorldView tekur myndir á átta spekturböndum. Myndirnar eru teknar í 770 km hæð. Myndirnar sem til eru hjá LMÍ eru alls sex og eru samsettar úr fleiri myndum. Fjórar myndir eru í Borgarfirði og tvær á Suðurlandi. • Greinihæfni í pan 0,46 m • Greinihæfni í lit 1,8 m • Litbönd B, G, R, NIR, R edge, coastal, gult, NIR2 • Stærð myndar 16,4 x 16,4 km2

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    SPOT-4 og SPOT-5 gervitunglamyndir sem teknar voru að sumarlagi 2011 og 2012 samkvæmt samningi Umhverfisstofnunar Evrópu (EEA) og Geimferðastofnunar Evrópu (ESA) fyrir uppfærslu á CORINE landflokkunarverkefninu og skyldum landvöktunarverkefnum. • SPOT-4 og SPOT-5 • Hnitsettar, 10 eða 20 m myndpunktsstærð • 4 spekturbönd (G, R, NIR og SWIR) en ekki pan-band. • Alls 64 myndir sem þekja allt landið, skýjaþekja < 5% fyrir landið allt. • IMG-gagnasnið, 8 bita • Sólarhæð > 23°. Aðfallshorn (Instrument Incidence Angle) < 20°.

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    Landsat-7 gervitunglamyndir sem Umhverfisstofnun Evrópu (EEA) útvegaði fyrir fyrstu gerð CORINE landflokkunarinnar, CLC2000. Myndataka var ekki pöntuð og um er að ræða bestu (skástu) myndirnar sem hægt var að finna í myndasafni frá því um 2000 og þekja allt landið. Flestar myndirnar, 8 talsins, eru teknar árið 2000, þrjár árið 1999 og ein mynd hvort ár 2001 og 2002. • Landsat-7 • Hnitsettar, 25 m myndpunktsstærð fyrir litböndin og 12,5 m í pan-bandi • 8 spekturbönd (B, G, R, NIR, SWIR og TIR) og pan-band • Myndir teknar 1999 - 2003 • Alls 13 myndir sem þekja allt landið, sumar skýjaðar og aðrar með snjóþekju • TIF-gagnasnið, 8 bita