Average near-East crustal velocities between summer 2015 and summer 2018. These velocities indicate velocities in the East direction. However, they could be slightly influence by velocities along the North and Up directions and are therefore called near-East. Near-East velocities were derived by decomposing the line-of-sight velocities of six Sentinel-1 interferometric time-series covering Iceland. These time-series used a single master approach and Sentinel-1 images from the following summers (mid-June to end of September): 2015, 2016, 2017, and 2018. The near-East velocity grid has a 50 m resolution.

HRL, 6 háupplausnargagnalög: yfirborðsgegndræpi, skógar (trjákrónuþéttleiki), skógar (barrtré/lauftré), graslendi, votlendi, vötn. Rastagögn, 20 m myndpunktsstærð, upprunaleg og endurbætt gagnalög og skýrslur, ISN2004. Hægt er að sækja gögnin á niðurhalssíðu Náttúrufræðistofnunar. Nánari upplýsingar um hvert lag fylgja gögnunum. HRL, 6 High Resolution Layers: imperviousness, tree cover density, forest type, grasslands, wetlands, permanent water bodies. Raster data, 20 m pixel size, intermediate and enhanced results, data and verification/enhancement reports, ISN2004. The datasets can be downloaded from the Institute of Nature Research Download Site where more details information about each layer are included.

Örnefni eru í þremur lögum: flákalag, punktalag og línulag. Uppfærð örnefni birtast vikulega í vefsjám. Gott samstarf er við Stofnun Árna Magnússonar í íslenskum fræðum þegar upp koma vafaatriði í skráningu örnefna, auk þess sem þaðan eru send örnefnagögn í formi mynda, korta og hnita sem eru sett inn. Þessi vinna með myndir og nafnberalistann er langtímaverkefni og mikið verk óunnið þar.

[IS] WMS þjónusta fyrir drónamyndir frá Landmælingum Íslands. [EN] WMS service to serve drone imagery from the national land survey of Iceland.

[IS] Í Rammasjá er hægt að skoða gögn sem tengjast áætlun um vernd og orkunýtingu landsvæða, þ.e.a.s. Rammaáætlun. [EN] The Master Plan for Nature Protection and Energy Utilization Map

Samsettar og uppréttar sögulegar loftmyndir af Íslandi. Unnið er að því að staðsetja loftmyndir frá 1974 og 1994 – 2000 úr loftmyndasafni Náttúrufræðistofnunar (https://gatt.lmi.is/geonetwork/srv/ice/catalog.search#/metadata/d2323e18-ab9f-495d-8a4e-58c2a5fb096e ). Myndirnar eru birtar jafnóðum og búið er að staðsetja þær en ætlunin er að staðsetja eldri myndir síðar. Svæði af myndum sem teknar voru í sama flugi og úr sömu flughæð eru sett saman. Upplausn myndanna er yfirleitt 50 cm. Búið er að vinna myndirnar með sjálfvirkum aðferðum. Ákveðnar staðsetningar eru valdar af gervitunglamyndum (https://gatt.lmi.is/geonetwork/srv/ice/catalog.search#/metadata/e542c260-6431-48a5-8065-93350b8cb3a1) og stilltar af á ÍslandsDEM landhæðalíkaninu (https://gatt.lmi.is/geonetwork/srv/ice/catalog.search#/metadata/e6712430-a63c-4ae5-9158-c89d16da6361 ). Gerð eru nákvæm landhæðalíkön úr sögulegu loftmyndunum þar sem hæðarnákvæmni er yfirleitt innan við 1 m. Líkönin eru síðan notuð til að staðsetja loftmyndirnar. Áætluð staðsetningarnákvæmni myndanna er minna en 2 m. ---------------------------------------------------------------------------------------------------------------- This repository includes orthorectified and mosaicked historical aerial images from all over Iceland. The datasets are created from historical aerial images on film from the years 1974, 1994 - 2000 from the aerial photograph collection of the NLSI (https://gatt.lmi.is/geonetwork/srv/ice/catalog.search#/metadata/d2323e18-ab9f-495d-8a4e-58c2a5fb096e). Each mosaic is created from images taken on the same day at approximately the same height. The resolution of the mosaics is usually 50 cm. The historical photographs have been processed using automated methods of detection of points of interest (control points?) using the Maxar mosaic (https://gatt.lmi.is/geonetwork/srv/ice/catalog.search#/metadata/e542c260-6431-48a5-8065-93350b8cb3a1)) followed by a refined correction of the cameras using the IslandsDEM (https://gatt.lmi.is/geonetwork/srv/ice/catalog.search#/metadata/e6712430-a63c-4ae5-9158-c89d16da6361) as reference. For each block of historical photographs, an accurate Digital Elevation Model (DEM) is created (where the vertical accuracy is typically better than 1 m), which is used to orthorectify the aerial photographs. The estimated horizontal accuracy of the orthorectified aerial imagery is better than 2 meters.

Loftmyndasjáin er vefsjá með sögulegum loftmyndum og er byggð á loftmyndasafni Náttúrufræðistofnunar sem nær rúmlega 80 ár aftur í tímann. Vefsjáin var hönnuð hjá Landmælingum Íslands í samstarfi við Jarðvísindastofnun HÍ og Fjarkönnunarmiðstöð HÍ. Loftmyndunum sem finna má í vefsjánni (https://www.lmi.is/is/landupplysingar/fjarkonnun/loftmyndasafn) hefur verið safnað úr flugvél, þær skannaðar og breytt í kort. Vefsjáin gefur því fólki færi á að stökkva upp í nokkurs konar ferðatímavél yfir Íslandi og skoða þær breytingar sem orðið hafa á landslagi, t.d. af völdum eldgosa, hopunar jökla eða útbreiðslu plantna, og í þéttbýli síðustu 80 árin. Loftmyndasjáin nýtist við kennslu, rannsóknir og sögu auk þess að svala almennri forvitni. Aðgangur að vefsjánni er öllum opinn og án gjaldtöku.

Average near-Up crustal velocities between summer 2015 and summer 2018. These velocities indicate velocities in the Up direction. However, they could be slightly influence by velocities along the East and North directions and are therefore called near-Up. Near-Up velocities were derived by decomposing the line-of-sight velocities of six Sentinel-1 interferometric time-series covering Iceland. These time-series used a single master approach and Sentinel-1 images from the following summers (mid-June to end of September): 2015, 2016, 2017, and 2018. The near-Up velocity grid has a 50 m resolution.

Íslenskur texti er í vinnslu. This raster dataset is a visibility analysis of several wind turbine projects across Iceland which are a part of the fifth phase of the master plan (Rammaáætlun http://www.ramma.is/). The area analysed is a 45 km buffer zone around each wind turbine project. The cutout areas in the 45 km buffer have no visibility due to visual obstruction. The red colour represents high visibility, fading into yellow, with the green colour representing low visibility of the wind turbines. Zones of theoretical visibility have been classified as near (0-2km), intermediate (2-15km) and remote zone (>15km) which are represented in the colour grading. It should be considered that atmospheric conditions, lighting, shading and more affect visibility and detectability. The perception of the wind projects in the green zone will be more fading in the landscape without direct detection, while in the red coloured zone the wind turbine is a prominent element in the landscape. For further information consider reading the respective chapter in the project report or check out further tools like the Ramma 3D map. As a digital elevation model the 10x10 m resolution ÍslandsDEM is used which sets the dataset pixel resolution to 10x10 m. An average viewer height of 1.75 m is assumed, while the wind turbine heights vary between 150 m and 200 m depending on project sites. The maximal height of the wind turbine is considered, meaning to the upper blade tip. See more information in the table on the side. The curvature of the earth is considered in the simulation and a default atmospheric refraction of 0.13 is assumed.

Íslenska: Vetrarfuglatalningar eru ein lengsta samfellda vöktun sem stunduð hefur verið hér á landi og sú sem tekur til flestra fuglategunda. Frá upphafi hafa áhugamenn unnið þetta verk í sjálfboðavinnu og á annað hundrað manns taka þátt. Talningar fara fram á föstum dögum í kringum áramót. Markmið vetrarfuglatalninga er að safna upplýsingum um fjölda og dreifingu fugla að vetrarlagi. Talningar eru staðlaðar og nýtast til vöktunar einstakra stofna. Sjá niðurstöður vetrarfuglatalninga: https://www.natt.is/is/vetrarfuglatalningar-nidurstodur English: Winter bird counts are one of the longest-running continuous monitoring efforts in Iceland and the one that covers the greatest number of bird species. From the beginning, this work has been carried out by volunteers, with around a hundred people participating. The counts take place on fixed dates around the New Year. The aim of the winter bird counts is to collect information on the number and distribution of birds during the winter. The counts are standardized and are used to monitor individual populations. See the results of the winter bird counts: https://www.natt.is/is/vetrarfuglatalningar-nidurstodur