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The Earth Story

@earthstory / earthstory.tumblr.com

This is the blog homepage of the Facebook group "The Earth Story" (Click here to visit our Facebook group). “The Earth Story” are group of volunteers with backgrounds throughout the Earth Sciences. We cover all Earth sciences - oceanography, climatology, geology, geophysics and much, much more. Our articles combine the latest research, stunning photography, and basic knowledge of geosciences, and are written for everyone!
We hope you find us to be a unique home for learning about the Earth sciences, and we hope you enjoy!
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roam
This was the moment I realized that I’m giving up trying to decipher between dreams and reality... At this point, they are one and the same. Stare across a gap that spans 2,900 feet across a canyon 700 feet deep, and you’ll see just how blurred the lines become... literally and figuratively ⠀⁠⠀
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Line length: 2,900ft⠀⁠⠀
Height: 700ft ⠀⁠⠀
Tension: ~7kN⠀⁠⠀
Time walking end to end: ~45 mins⁠⠀
Experience: Otherworldly⁠⠀

⁠⠀

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Original caption:

After taking a road trip across America I set out to record folks from each of the 50 states reading a poem inspired by "America The Beautiful". That goal was reached on May 25th, 2019 with a submission from the final state of Mississippi. The voices together act as the voice over for this short film.
For more about the project and an interactive version of this video visit: lefty.co/america/
Director and Cinematographer Brandon Roots
Based on the poem “America the Beautiful” by Katharine Lee Bates.
Original Music by Eric Cross
Driving Playlists and Campfires by Matthew Ahl
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reblogged

20 minute painting of a Kolk at Potholes State park in Washington.

This kolk formed during the Missoula Floods when vortexes would form in the current and pick up the basalt rock below creating large holes in the ground.

Person for scale in last picture

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Original caption:

Supercell thunderstorms, despite their menacing appearance and reputation, are simply nature's attempt to fix the imbalance of warm air beneath cold air, in the most efficient way possible. All thunderstorms are a byproduct of the sun heating the earth's surface and creating an unstable configuration of lighter, warm air, beneath heavier, cold air. What makes certain thunderstorms a supercell is the addition of wind shear: when they form beneath a strong upper-level jet stream.
The difference of wind speed with height adds a spin to the storm's updraft, similar to that of a sink drain, and the displacement of the the storm's rain-cooled air (its waste) far away from it's updraft base where it ingests the unstable warm air (its fuel), allows supercell thunderstorms to thrive for hours and cover hundreds of miles. Once their fuel supply is exhausted and the imbalance is corrected, they weaken and decay. This weakening process typically manifests itself as what storm chasers call "gusting out". This occurs when the amount of rain-cooled air overwhelms the lighter, warmer air, and it surges out into the lower density and cuts off the storm's fuel supply.
This collection of timelapses was gathered over the last six years from Texas to North Dakota and everywhere in between. The project started out as wanting to be able to see the life cycles of these storms, just for my own enjoyment and to increase my understanding of them. Over time, it morphed into an obsession with wanting to document as many photogenic supercells as I could, in as high a resolution as possible, as to be able to share with those who couldn't see first-hand the majestic beauty that comes alive in the skies above America's Great Plains every Spring. After more than 100,000 miles on the road and tens of thousands of shutter clicks later, this is the result. I hope you enjoy watching it as much as I enjoyed creating it.
Music by Guy Andrews: guyandrews.co.uk
Shot on Canon cameras. Processed using the Adobe Creative Cloud Suite and LRTimelapse.
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A white stripe across the landscape The path of this snow laden storm earlier this month ran across the continental USA from Alabama to Delaware, leaving behind a clear mark of its passage to be snapped by the MODIS instrument aboard NASA's AQUA satellite. The higher ground to the north also copped some flakes, revealing the shape of the tectonically disturbed rocks as white highlights on the ridges. Loz Image credit: NASA https://go.nasa.gov/2kLW47r

Source: facebook.com
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Goodnight Texas

This image comes from one of the astronauts on the International Space Station and shows the state of Texas at night.

The major metropolitan areas stand out quite well. The large city in the foreground is Houston, sitting on the shores of the Gulf of Mexico which appears mostly dark. The Interstate-35 corridor is well defined, with San Antonio at the left hand side, followed by Austin, and to the north the Dallas-Fort Worth Metroplex.

The DFW area appears to be getting wet here. There are some clouds over it leaving it fuzzy; this might well be what “a city being rained on at night” looks like from the ISS.

Still further north the cities in Oklahoma can be made out as well.

And I can’t figure out which astronaut to credit for this image because for some reason NASA never specifies in their image releases.

-JBB

Image credit: http://www.nasa.gov/multimedia/imagegallery/image_feature_2540.html

Source: facebook.com
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These are coast redwoods (Sequoia sempervirens) in Humboldt Redwoods State Park, California. The park is home to the largest continuous block of old-growth redwood forest left on the planet- with some 10,000 acres.

The alluvial flats along its creeks and rivers are prime redwood habitats. The mix of rich soils, water, and fog rolling in from the ocean have produced the planet’s tallest forest. Of the 180 known redwoods greater than 350 feet, more than 130 grow here.

Coastal redwoods can be up to 379 feet (115.5 m) in height (without the roots) and up to 26 feet (7.9 m) in diameter at breast height.

Research now shows that the older such trees get, the more wood they put on- nice to see even trees go through a midlife spread.

-Jean

Photograph by Michael Nichols, National Geographic

Source: facebook.com
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