EPOD - a service of USRA

The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
captions and links exemplifying features within the Earth system. The
community is invited to contribute digital imagery, short captions and
relevant links.


Volcanoes in New Mexico

August 03, 2021

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Photographer: Tom Wildoner

Summary Author: Tom Wildoner

Volcanoes in New Mexico? Indeed there are volcanoes, however,
they have been inactive for over 150,000 years. The volcano in the
image above is named the Black Volcano and it is located 5 miles (8
kilometers) outside Albuquerque, New Mexico. This inactive volcano
is part of the Petroglyph National Monument and is one of five
inactive fissure volcanoes in the region. The protected monument is
composed of a dark basalt rock, on which native populations have
scribed over 25,000 petroglyphs. These intricate rock carvings have
since become the namesake for the national monument and the surrounding
landmarks. In addition to Black Volcano, you can also see a smaller
volcano on either side of Black Volcano in my image, Vulcan and JA
Volcanoes.
* Albuquerque, NM Coordinates: 35.132448, -106.772687

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Volcanoes in New Mexico Otherworldly Sunset and Rock Spire
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Geology Links

* Earthquakes
* Geologic Time
* Geomagnetism
* General Dictionary of Geology
* Mineral and Locality Database
* Mohs Scale of Mineral Hardness
* This Dynamic Earth
* USGS
* USGS Ask a Geologist
* USGS/NPS Geologic Glossary
* USGS Volcano Hazards Program

-
Earth Science Picture of the Day is a service of the Universities
Space Research Association.

https://epod.usra.edu

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EPOD - a service of USRA

The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
captions and links exemplifying features within the Earth system. The
community is invited to contribute digital imagery, short captions and
relevant links.


Archive - Gurgler Glacier

October 02, 2021
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Every weekend we present a notable item from our archives.

This EPOD was originally published May 23, 2016.
Photographer: Klaus Sandforth
Summary Author: Klaus Sandforth

May 2016 Viewer's Choice Shown above are several ski
mountaineers entering the Gurgler Glacier in the Ötztaler Alpen
(Eastern Alps) of Austria. What looks at first sight like a classic
glacier snout is dead ice of the retreating Gurgler Glacier,
not far from Schalfkogel Peak, where the group is heading to climb.
Dead ice is forming in receding glacial environments, where
distinct ice bodies get separated from the main glacier. Note the
slightly stratified but mostly crystal clear ice here. The rippled
surface texture might be caused by differential melting and
sublimation due to warm air currents, particularly in spring and
summer. The surface of the ice is perfectly smooth and appears to
be polished. This structure is rather temporary and fragile as it
developed only a few years ago and will likely fade away just as
quickly. Our passage might seem dangerous, but during the winter season
when temperatures are generally below freezing level, it’s a pretty
safe place to stay.
Like many glaciers in the Alps, the Gurgler Glacier lost much of
its mass in the last 150 years and is now retreating on average a
few tens of meters every year. Climate change and glacier retreat
in the Alps has both ecological and economical impacts. Glaciers
attract tourists and also provide natural water reservoirs and
hydropower. Photo taken on March 17, 2015.
Photo Details: Apple iPhone 4S back camera; 35 mm focal length; ƒ/2.4
aperture; 1/1126 sec. exposure; ISO 50.
* Gurgler Glacier, Austria Coordinates: 46.8193, 10.9756

Related EPODs

Archive - Gurgler Glacier April Snow in Dolly Sods, West
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Cryosphere Links

* Guide to Frost
* What is the Cryosphere?
* Bentley Snow Crystals
* Glaciers of the World
* Ice, Snow, and Glaciers: The Water Cycle
* The National Snow and Ice Data Center Google Earth Images
* Snow and Ice Crystals

-
Earth Science Picture of the Day is a service of the Universities
Space Research Association.

https://epod.usra.edu

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* Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (1:317/3)

EPOD - a service of USRA

The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
captions and links exemplifying features within the Earth system. The
community is invited to contribute digital imagery, short captions and
relevant links.


Foehn Effect in La Palma, Canary Islands

November 03, 2021

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Photographer: David del Rosario

Summary Authors: David del Rosario; Cadan Cummings

The spectacular photo above shows an atmospheric phenomenon called the
Foehn Effect taken on the island of La Palma, in the Canary
Islands. Foehn Effect is a type of wind pattern that pushes a warm,
unstable air mass upwards over mountains where it cools and
condenses into a low cloud layer. This effect is usually
accompanied on the leeward side by a strong adiabatic warming when
the dry air separates out as it descends down the mountainside. The
adiabatic warming occurs as a result of the air mass being compressed
by increasing atmospheric pressure as it descends down the mountain.
Following the ideal gas law, this compressing force translates to
an increase in the temperature of the air mass. These strong wind
patterns are known to worsen wildfires by fanning their flames with
dry, high speed air masses. Photo taken August 1, 2021.
* La Palma, Canary Islands, Spain Coordinates: 28.7134, -17.9058

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Cloud Links

* Atmospheric Optics
* The Cloud Appreciation Society
* Cloud Atlas
* Color and Light in Nature

-
Earth Science Picture of the Day is a service of the Universities
Space Research Association.

https://epod.usra.edu

--- up 8 weeks, 5 days, 21 hours, 55 minutes
* Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (1:317/3)

EPOD - a service of USRA

The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
captions and links exemplifying features within the Earth system. The
community is invited to contribute digital imagery, short captions and
relevant links.


Full Moon illuminates Marmolada and Glacier

December 03, 2021

The Full Moon illuminates the Marmolada ( 3 343m above sea level)
and its glacier the largest in the Dolomites. Dolomites Unesco world
Heritage (1)

Photographer: Alessandra Masi

Summary Author: Alessandra Masi; Cadan Cummings

Today’s featured post features a photo of the full moon and
Marmolada, which is a mountain located in northeastern Italy. The
tallest mountain in the Dolomites UNESCO World Heritage Site,
Marmolada rises to a height of 10,968 ft (3,343 m) at the Punta Penìa
peak and stands on the boundaries of the Italian regions Trentino
and Veneto. In total, the area composing the Marmolada system
and the region nicknamed the “Queen of the Dolomites” encompasses
approximately 5,456 acres (2,208 hectares). The Marmolada system
includes two smaller sections, the southern and northern sections.
Pictured above is part of the northern region near the Marmolada
Glacier and Punta Penìa. The Marmolada Glacier is unique in the
Dolomites because it is the only extensive glacier in this region
of the Alps. In contrast to the Punta Penìa and the rest of the
northern face, the surrounding region consists of softly rolling
contours that are covered in woods and meadows before ultimately
leading to the banks of the Fedaia lake. Photo was taken on
September 21, 2021, around the time of the full moon.

Photo details: Canon EOS R6, Canon 70/300 a 124 mm, ISO 640, f/ 6.3,
sec.1,3
* Passo Giau, Dolomiti, Veneto Italy Coordinates: 46.484, 12.051

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Night Sky Links

* Space Weather Live
* Space Weather Live Forum
* About the Moon
* American Meteor Society
* Arbeitskreises Meteore e.V.
* Global City Lights
* Heavens Above Home Page
* The International Meteor Organization
* Lunar and Planetary Institute
* MoonConnection
* NASA Eclipse Web Page
* Understanding The Moon Phases

-
Earth Science Picture of the Day is a service of the Universities
Space Research Association.

https://epod.usra.edu

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