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.


Parisian Cirrus Wedding Veil

February 09, 2021

Bertrand_Parisian cirrus wedding veil (003)

Photographer: Bertrand Kulik
Summary Authors: Bertrand Kulik; Jim Foster

These eye-catching cirrus clouds were captured at sunset over
Paris, France. To me, they resemble a wedding veil or maybe angel
wings. Forming at altitudes above about 20,000 ft (6,096 m), they’re
high enough to capture the setting Sun’s lingering rays. The small
amounts of water vapor ascending in the air at these heights are
readily squeezed out, not as water droplets but rather as tiny ice
crystals. Temperatures where cirrus clouds take shape are typically -35
F (-37 C) or colder. Photo taken on November 21, 2020.

Photo Details: Canon EOS 5D Mark III camera; TAMRON SP 15-30 mm lens;
F/2.8; Di VC USD A012; ƒ/9.0; 18.0 mm; 1/160 sec. exposure; ISO 400
* Paris, France Coordinates: 48.85277, 2.30036

Related EPODs

Parisian Cirrus Wedding Veil Solar Corona Observed in Fog at
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Atmospheric Effects Links

* Atmospheric Optics
* Color and Light in Nature
* The Colors of Twillight and Sunset
* Refraction Index
* Image Gallery: Atmospheric Effects
* What is a Rainbow?

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

https://epod.usra.edu

--- up 7 weeks, 6 days, 21 hours, 27 minutes
* Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)

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.


Comet Neowise and The Dark of Night

March 09, 2021

LightAndGlorySMALLer

_DSC2349-2

Photographer: Top Photo, Tomas Slovinsky; Bottom photo, Peter
Clausen
Summary Authors: Tomas Slovinsky; Jim Foster

The photo above showing the grand arch of the Milky Way was
captured at Elafonissi Beach, the most southwestern part of Crete,
Greece. This beach is known for its clear turquoise water and soft
white and colored sand. For astrophotographers and stargazers alike,
it’s also known as a dark sky paradise. Rated a category 1 on the
Bortle Scale of sky darkness, the faintest objects visible to the
human eye can be detected here, including the structure of the Milky
Way, nebulas and airglow. But in recent years, light pollution from
nearby restaurants and local houses has been disconcerting. Note
Comet Neowise on the far left.

The bottom photo shows another view of Comet Neowise as observed above
Rocky Mountain National Park on July 17, 2020.
* Coordinates
+ Elafonissi Beach, Greece: 35.2712, 23.5413
+ Rocky Mountain National Park, Colorado: 40.3428, -105.6836

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Comet Neowise and The Dark of Night Setting Crescent Moon over
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Quadrantids
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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

--- up 11 weeks, 6 days, 21 hours, 27 minutes
* Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)

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 - Black Hills Flume

January 09, 2021

Flume

Every weekend we present a notable item from our archives. This EPOD
was originally published January 9, 2004.

Provided by: Mike Barondeau
Summary author: Mike Barondeau

This is one of the tunnels you walk through when traversing the Flume
Trail from Sheridan Lake to Rockerville in the Black Hills of South
Dakota. The historic Flume Trail takes you back to the mining boom of
the 1880s when the Rockerville Flume carried water 20 miles (32 km),
from Spring Creek west of present-day Sheridan Lake, east to the placer
diggings near Rockerville. This flume operated until 1885 and enabled
miners to take over $500,000 in gold. The trail follows the actual
flume bed for much of its length. Along the way, you'll see historic
artifacts and parts of the flume itself, but because of these fragile
artifacts, this is a hikers only trail.


Related EPODs

Archive - Black Hills Flume Cracked Eggs of the Bisti Badlands
Puget Sound Feeder Bluff Exogenic Fulgurites Cedar Breaks:
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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

--- up 3 weeks, 3 days, 21 hours, 27 minutes
* Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)

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.


Utah’s Great Salt Lake

April 09, 2021

Wiggins_GSL

Photographer: Patrick Wiggins
Summary Author: Patrick Wiggins

As I’m based out of Salt Lake City, Utah, I often fly my small
Cessna airplane around Utah’s Great Salt Lake and am always on
the lookout for scenes that strike my fancy. In this case, it was how
clouds and blue sky reflected off of the surface of the lake
that on this day appeared to be smooth as glass. The island in the
distance is Stansbury Island. Owing to the low lake level in
recent years, it’s become more of a peninsula than an island. In the
foreground are evaporation ponds used to extract salt. Photo
taken on January 17, 2021.
* Great Salt Lake, Utah Coordinates: 41.1158 -112.4768

Related EPODs

Utah’s Great Salt Lake Archive - Orange Mound Spring Soap
Lake, Washington Archive - Iguazu Falls Archive - Doda Fallet
EPOD 20th - Flash Flood on Cave Creek
More...

Hydrology Links

* Current Sea Surface Temperature
* NOAA Ocean Explorer Gallery
* Ocean Color
* What is hydrology?
* Tides and Currents
* Water Resources of the United States
* World Waterfall Database
* The USGS Water Science School
* World Water Database
* The World’s Water
* USGS Surface Water Information Pages

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

https://epod.usra.edu

--- up 2 weeks, 22 hours, 10 minutes
* Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)

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.


Star Trails Overhead the Statue of Mother

May 09, 2021

Star-trails-aegina-statue-mother-2020

Photographer: Anthony Ayiomamitis

Summary Author: Anthony Ayiomamitis

The photo above showing star trails above the “Statue of Mother” was
taken during the summer of 2020, on the island of Aegina, Greece.
Polaris is the star at the center of the concentric circles. This
13 ft (4 m) tall bronze statue was sculpted by Christos
Karpalou and represents a mother patiently awaiting the safe return of
her son from abroad. A similar but much smaller copy of the statue can
be found at the island's cemetery, overlooking the grave of the
sculptor's mother. Note that my car's floor mats were used to cover the
flood light facing the base of the statue. Click here to learn more
about the details of this image.


Aegina, Greece Coordinates: 37.7409, 23.5014


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Star Trails Overhead the Statue of Mother M4 Globular Star
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Night
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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

--- up 2 days, 12 hours, 15 minutes
* Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)

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.


Comet NEOWISE in July of 2020

June 09, 2021


Inbound224745794316291604

Photographer: Andrea Zappia
Summary Author: Andrea Zappia

Featured above is Comet NEOWISE as observed from Rocca la Meja,
Italy, on July 22, 2020. In order to capture this view I spent the
night at an altitude of 8,850 ft (approximately 2700 m), equipped with
photographic gear and a tent and a sleeping bag. The camera is facing
toward the north-northwest. This long period comet won’t appear
again until some 6000 years from now. Note NEOWISE’s double
tail and reflection off the lake's still waters.

Photo details: To photograph Neowise, I took a single shot with 15
seconds exposure at ISO 3200.


Rocca la Meja, Italy Coordinates: 44.416667, 7.333333


Related EPODs

Comet NEOWISE in July of 2020 The Relativistic Jet of M87
Battle of the Moons Star Trails Overhead the Statue of Mother
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Viewed from Inside a Cave
More...

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

--- up 4 weeks, 5 days, 12 hours, 15 minutes
* Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)

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.


Upper Tangent Arc Observed over San José Pinula, Guatemala

July 09, 2021


01 Arco Superior Tangente - 6 mayo 2021 por Fabriccio Díaz (EPOD)

Photographer: Fabriccio Díaz
Summary Author: Fabriccio Díaz
One morning several weeks ago, I captured this charming upper
tangent arc (top center) using a drone, near my home in San José
Pinula, Guatemala. These arcs are tangent to the 22-degree halo and
can only be seen when the Sun is relatively low in the sky. They take
shape when the hexagonal ice crystals that make up cirriform
clouds are oriented with their long axes more or less horizontal. So,
sunlight that enters one of the crystal’s side faces is refracted and
then exits an alternate side face. Note also the sundog to the
right of the Sun. Photo taken approximately 6:30 a.m. (local time) on
May 6,2021.

Photo details: ISO 100; f10; Mavic 2 Pro; Merged and edited in Adobe
Lightroom.
* San José Pinula, Guatemala Coordinates: 14.5448, -90.4102

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Upper Tangent Arc Observed over San José Pinula, Guatemala
Rainbows Over the Italian Shoreline Air Pollution Woes Pink
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More...

Atmospheric Effects Links

* Atmospheric Optics
* Color and Light in Nature
* The Colors of Twillight and Sunset
* Refraction Index
* Image Gallery: Atmospheric Effects
* What is a Rainbow?

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

https://epod.usra.edu

--- up 9 weeks, 12 hours, 15 minutes
* Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)

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.


Wildfire Smoke Plume Over Eastern Idaho

September 09, 2021

Wildfire_near_St_Anthony

Photographer: Glenn McCreery

Summary Author: Glenn McCreery

On June 21, 2021 at approximately 5 PM Mountain Daylight Time (MDT) a
wildfire, the “ Black Knoll Fire”, started in an unpopulated
area approximately four miles northeast on the town of St. Anthony,
Idaho. The material burned was mostly grass, sagebrush, and
juniper. Organic matter burns at a lower temperature and produces a
lighter gray plume than the black, higher temperature, plume from
burning oil or a house fire. Such scenes are becoming more common now
that wildfire season has become longer and the fires more intense due
to climate change.
I photographed the fire at 7:43 PM MDT from Idaho State Highway 33, at
a distance of approximately 10 miles to the southeast of the fire. By
this time, the fire had grown to about 100 acres (40 hectares). The
fire continued to grow to approximately 433 acres (175 hectares)
before it was completely contained the next day. I calculate from the
camera image dimensions and focal length (105mm) and approximate
distance to the fire, that the plume reached a maximum height above the
ground of approximately 1 mile (1.6 km). The angle that the initial
plume makes compared with vertical is accounted for by an estimated 7
to 10 mile per hour (11 to 16 kph) wind blowing from the southwest,
although there are no nearby weather stations from which to check my
estimate.

Photo data: Canon 5D IV camera with Canon 24-105mm L lens at 105mm. ISO
200, f:8.0, 1/1000s. Minor adjustments in Photoshop CC.
* Newdale, Idaho Coordinates: 43.8849, -111.5389

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Spirit Lake in the Shadow of Mount St. Helens Journey to the
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Tahoe: Blue Gem of the Sierra Nevada
More...

Geography Links

* Atlapedia Online
* CountryReports
* GPS Visualizer
* Holt Rinehart Winston World Atlas
* Mapping Our World
* Perry-Castañeda Library Map Collection
* Types of Land
* World Mapper

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

https://epod.usra.edu

--- up 6 days, 21 hours, 55 minutes
* Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)