The landscape portal is thought of as a platform to display the rapid landscape/environmental changes that happens in Iceland and in the current state of the landscape portal you can „travel“ up to 70 yr back in time and look at Hekla and surroundings before and after each of the last 5 eruptions at Hekla.
The portal includes 7 mosaics of historical aerial images (1945, 1946, 1960, 1979, 1984,1987, 1992) in 1 – 0.5m/pixel resolution, which is a fairly good resolution to study changes in the landscape; e.g. new lava flows, tephra deposition, changes in vegetation etc. The area at Hekla has changed immensely over the last 70 yr so I can recommend that you check out what Hekla e.g. looked like before the 1947-48 eruption. Note that the majority of the data is panchromatic (so black white) and the quality in the old data can be low in some areas.
So, if you are interested, load the website in a google or firefox browser, https://emmirs.svarmi.is/map
You can adjust the white timeline in the bottom according to the time you are interested in ( o either 1945,1946, 1960, 1979, 1984,1987, 1992) and zoom in using the + - slider to the left of the screen.
If you are in the field (around Hekla) and use your smartphone you can locate yourself on the website and check out what the surroundings looked like back in time (using the location icon below the zoom slider).
Furthermore you can load the outlines of historical lava flows (Published in the 2018 Jökull, Pedersen et al. 2018) by pushing the list icon (below the location icon under the zoom slider) and you can then select which lava flows you are interested in.
A final feature to highlight is that you can download the shapefiles of the lava flow fields using the menu Icon (top left,- a burger-kind of symbol)
Use the EMMIRS landscape portal to travel back in time to look at younger version of this beauty: Hekla volcano. The landscape consists of processed aerial images of Hekla from historical achieve at Landmælingar Islands. The image displayed below is from 1946.