Tag Archives: Geography

Ordnance Survey OpenData In QGIS 3: Part 3

I finish my last post about using Ordnance Survey OpenData in QGIS having produced this map of the area around Blaven, on the Isle of Skye: It’s tinted for height, shaded and marked up with contours to emphasize landforms, and has features such as surface water, coastline, roads and buildings added. Now it needs some … Continue reading Ordnance Survey OpenData In QGIS 3: Part 3

Ordnance Survey OpenData In QGIS 3: Part 1

Recently, I’ve been preparing my UK walking maps using the Ordnance Survey’s free OpenData products, which I’ve rendered into maps using a free, open-source Geographical Information System, QGIS. I thought I’d write a little bit about that, now that I’ve got my maps looking more or less as I’d like them. For this first part, … Continue reading Ordnance Survey OpenData In QGIS 3: Part 1

Territories That Crossed The Date Line: Part 2 – 1900 To Present

  The Date or Calendar Line is a modification of the line of the 180th meridian, and is drawn so as to include islands of any one group, etc, on the same side of the line. When crossing this line on a westerly (true) course, the date must be advance one day; when crossing it … Continue reading Territories That Crossed The Date Line: Part 2 – 1900 To Present

Territories That Crossed The Date Line: Part 1 – Up To 1900

  Constrained by extreme necessity, we decided on touching at the Cape Verde Islands, and on Wednesday the 9th of July, we touched at one of those islands named St. James’s. […] In order to see whether we had kept an exact account of the days, we charged those who went ashore to ask what … Continue reading Territories That Crossed The Date Line: Part 1 – Up To 1900

Which Place Gets The Most Daylight?

So this puzzle isn’t about sunshine (the amount of time the sun shines from a clear sky), or even about the intensity of sunlight (which decreases with increasing latitude), but about cumulative daylight—the length of time between sunrise and sunset in a given place, added up over the course of a year.* It’s a surprisingly … Continue reading Which Place Gets The Most Daylight?