Hot answers tagged

3

I usually refer to two free of charge sources for administrative division maps: for Europe, as in your case (I hope they still hold the maps of UK even after Brexit...) you can use the official NUTS - Nomenclature of territorial units for statistics maps from EUROSTAT available here; EUROSTAT has also a regularly updated dataset of the official boundaries ...


3

Most maps of Great Britain derive from the maps published by Her Majesty's Ordnance Survey. The official website is https://www.ordnancesurvey.co.uk/ and the sales page says that for £23.99 you can get a 1 year subscription to a digital app that gives you the ability to export in the GPX digital format. A crowd sourced version working on a map of the world ...


3

The Arctic has already been explored extensively by people traversing over the ice, by air and by naval submarines. On August 3, 1958, the American submarine USS Nautilus (SSN-571) reached the North Pole without surfacing. It then proceeded to travel under the entire Polar ice cap. On March 17, 1959, the USS Skate (SSN-578) surfaced on the North Pole and ...


3

The sea floor has been mapped using sonar from ships as shown here, and radar. But the fact was first discovered long before these technologies existed by sailors who got stuck in the ice. The entire ice sheet is floating and spinning at a relatively high rate of speed. When they got stuck, they could see, from the stars, that they were moving. I cannot find ...


3

First step - draw a strike line where line A intersects the 400 m line. Second step - you know that the sandstone layer is of equal thickness and dip, so you can draw a parallel line at the place with line B intersects the 400 m line. This will give you the thickness, as expressed on a horizontal surface. You know what the dip angle is, so getting the real ...


3

It is not so evident if you look for the big picture (grammar school's project?), or detail and specific region. Because even today, the geological mapping of Morocco is not complete (gouvernmental reference), the 19 already digitized geological maps about Morocco on gallica.fr may be an interesting entry for you. The GUI interface is more helpful for ...


2

@Muze “What would the color be if all of the dirt on Earth was added equally to a palette?” The average color of dirt is Pantone Warm Grey #11C.


2

It seems that attenuation is much greater at ultrasound frequencies: 50 khz 12-15 dB/km 0.5khz 0.024 dB/km It depends on what distance and resolution you need.


2

You can study the many maps, it seems there is a giant ridge foming but the ice grinds it faster than it rises. Icebergs are grinding the arctic deeper than sea level, like 300/400 meters deep, also considering the glacial maxima when the sea level is lower and there is more ice, whatever mountains are rising in the arctic are weathered far below the sea ...


1

I am sorry, but this type of linear map can't exist. You said that you want to minimize differences, so you want to make small countries bigger. But unfortunately, big countries become bigger too (because of linear transformation), so that's not the solution. I can only think of scaling individual portions of some standard projection. For example, you could ...


1

Optical LIDAR systems for marine use are being developed and are being used for accurate mapping of archaeological remains under water. See https://optics.org/news/8/3/26. However if a sonar is too big and impractical, I imagine oceanographic LIDAR is similarly out of scope.


1

I think you may have more than 2 domain based on satellite image. Maybe you have three limbs of folds (green) and a fault (red). Please consider this interpretation carefully, I don't know where your study area is, what are its geologic units and structures and plutonic intrusions may deform other rocks (sedimentary, metamorphic and vulcanic), which its ...


1

This is an idea that we can consider "wild". Or even better, untamed. Every then and now there are researchers trying to address the questions, but the proof have not been conclusive up to now (as far as I know). If you have sufficient knowledge, you may try to go through this peer-reviewed paper Riguzzi et al, (2009) Can Earth's rotation and tidal ...


1

To complement the other answers: it is also true that the coastline in that region hasn't been fully documented yet, primarily because a large amount of it is covered by glaciers. As an example, Sif Island (arguably of moderate size but still) was only discovered last year in the Amundsen Sea embayment (at the left end of your second map) by the THOR ...


1

The key sentence here is (not sure where the dataset is from) Every cartographer has to decide what level of detail to use. Mathematicians discovered the Coastline paradox for themselves in the 1960's, but it has always been a fundamental part of cartography. Different sources of data will come out of different methods of data collection, digitization, and ...


Only top voted, non community-wiki answers of a minimum length are eligible