…in Yosemite over a canyon valley vista with waterfall in the distance. Half Dome is seen side-on with moving shadows around it, viewed from the west under small clouds a small waterfall is also visible.
Time-lapse length (30 fps):
12 seconds -approx.
Orographic effects on clouds can be varied. One tried and true method of identifying orographic clouds: do the clouds appear around the mountaintops and nowhere else? This affirmative can safely indicate an orographic effect: when the landscape influences the clouds directly. The sunrise requires no clouds at all to filter through at full radiant intensity. Slowly shifting clouds with little to no transformation over time can indicate very stable air. The mountain range brightens in the morning sun.
Time-lapse length (30 fps):
32 seconds and 26 frames.
Flowing in the night sky. An exemplar clip of greener Northern Lights typical of northern latitudes during a solar maximum. Long exposures and low ‘coma’ (comatic aberration). Temps: Sub-zero (F) at ground-level.
Time-lapse length (30 fps):
25 seconds and 23 frames.
…Clouds still lit from below. Hovering above the city (bottom-right) Sacramento. Mid-level clouds with light from below the horizon’s sunlight.
Time-lapse length (30 fps):
10 seconds.
On a precipice with no land in sight as the fog flows below and around the POV. The sun sets below the horizon in the distance, and it is now dusk.
Time-lapse length (30 fps):
2 minutes, 20 seconds.
… under some very light transforming clouds and shade. North of Yosemite Valley is the highway to connect to the other side of the state. This Tioga Pass Road is closed much of the year due to snowfall. The snowy landscape vista stretches out to Mt Lyell of the Sierra Nevada Mountain range, which passes through the National Park.
Time-lapse length (30 fps):
14 seconds and 2 frames.
On a hill view just north of Akureyri, Iceland. Looking across the inlet to mountainous landscapes in a fog layer of stratus cloud. The low clouds move along, and a partial rainbow briefly forms in the sky from precipitation. The dawn is pinkish on the low clouds, facing west at sunrise, away from the sun. A three second interval is used.
Time-lapse length (30 fps):
16 seconds.
Scene notes: … of light rays through darker clouds slowly shifting. This is a slower clip with a very short interval and faster shutter speed. Crepuscular rays shine when there is a higher humidity in one area, but not necessarily very humid in the entire observable atmosphere around the observer. As the clouds move, the shadows defining the light rays move with them. The rays trace a path from the sun to the ground, and to the observer, the angles shift more the further the light path reaches from the sun.
Time-lapse length (30 fps):
9 seconds and 17 frames.