Why is visibility so good in the mountains?
Many visitors to cold mountains are struck by the amazing visibility. The visibility is so good that it can trick the brain into thinking things…
Tag: fog
What is the Planetary Boundary Layer?
From The Secret World of Weather: The lowest part of the atmosphere is the only area strongly influenced by the sun’s radiative heating of the…
Dew: A Sign of a Clear Skies
There are many signs within dew, but the simplest one is that you are most likely to see it after clear and cloudless skies overnight.…
The Sound of Fog Drip
What is fog drip? When we see fog, the air is saturated, there is more water than it can hold. This forms droplets which gather…
A Small, Challenging Natural Navigation Exercise in Fog
Yesterday the conditions were perfect for a short tricky natural navigation exercise in fog. Here are some of the photos from that challenge. These were taken…
What is Radiation Fog?
We are used to feeling the warmth from the sun on our faces. Heat radiates millions of miles across space, through our atmosphere to warm…
Naturally Navigating Dartmoor Part II
Naturally Navigating Dartmoor Part II Close to the Wind By Tristan Gooley (An edited version of the following article by Tristan Gooley was originally published…
Navigating by Windswept Grasses
It was great to be out there on Harting Downs again, in the mist, navigating by the feel of the wind and angles of the…
The Difference Between Mist and Fog
I recently took the opportunity to do a little natural navigation exercise on Dartmoor. There was heavy rain and plenty of mist and fog. I’ll…