• ES Picture of the Day 20 2022

    From Black Panther@21:1/186 to All on Thu Jan 20 11:01:20 2022
    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.


    El Drago Tree on the Island of Tenerife

    January 20, 2022

    DSC07862EPODSUBMISS

    Photographer: Kevin Saragozza

    Summary Author: Kevin Saragozza

    During a holiday trip, I had the opportunity to admire the El Drago
    tree, also known as Drago Milenario or Drago de Icod de los Vinos. The
    tree is the oldest and largest living specimen of Dracaena draco,
    or dragon tree, found in Tenerife, Canary Islands, Spain. It is said to
    be a thousand years old, although its exact age is disputed. In
    addition to being beautiful to photograph, El Drago is one of the
    symbols of Tenerife and was declared a national monument in 1917.
    This specific tree has been depicted on the 1,000 peseta note and
    it is also part of the coat of arms of the municipality of Icod de
    los Vinos. In addition, El Drago is a popular subject in local legends.
    El Drago is about 65-69 feet (20-21 meters) tall and has a total
    circumference of about 65 feet (20 meters) from its more than 300 main
    branches. The trunk contains a 20 foot (6 meter) high cavity,
    accessible through a door, with a fan installed to provide ventilation.
    It is estimated to weigh about 154 US tons (140 tonnes). When it
    flowered in 1995, it had about 1,800 flowering branches, with its
    weight increasing by 7,700 pounds (3.5 tonnes) during the fruiting
    season.
    Photo details: Sony a7iii + canon 16 35f4 is, 1/200 sec. f/8 35 mm iso
    50
    * Icod de los Vinos, Tenerife, Canary Islands, Spain Coordinates:
    28.3671, -16.7138

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    Plant Links

    * Discover Life
    * Tree Encyclopedia
    * What are Phytoplankton?
    * Encyclopedia of Life - What is a Plant?
    * USDA Plants Database
    * University of Texas Native Plant Database
    * Plants in Motion
    * What Tree is It?

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

    https://epod.usra.edu

    --- up 6 weeks, 4 days, 20 hours, 43 minutes
    * Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)
  • From Black Panther@21:1/186 to All on Sun Mar 20 12:01:00 2022
    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 - Upheaval Dome

    March 19, 2022

    Upheavaldome

    Every weekend we present a notable item from our archives.

    This EPOD was originally published on July 28, 2011.

    Photographer: Steven Schimmrich
    Summary Author: Steven Schimmrich

    The panorama above shows Upheaval Dome in Canyonlands National
    Park, Utah as viewed from the Overlook Trail. Upheaval Dome is
    an odd appearing structure in an area of otherwise flat-lying
    sedimentary rocks. While originally believed to be a deeply eroded
    uplift dome from the intrusion of a salt diapir (salt dome),
    evidence now indicates its origin as an ancient meteorite impact
    structure.

    The lighter color rock at center is the Permian White Rim
    Sandstone of the Cutler Group, the prominent cliff faces
    are resistant Jurassic Wingate Sandstone, and in between lie the
    more easily eroded Triassic Moenkopi and Chinle Formations.
    Evidence suggesting that this is an impact structure include the
    orientation of the folds and faults surrounding the structure,
    the finding of shocked quartz in the vicinity, and seismic
    reflection data indicating fractured rock below the structure and the
    absence of a salt dome. Photo taken on June 7, 2010.

    Photo details: Panasonic Lumix DMC-FZ50 camera; 35-400 mm zoom lens
    (f/2.8-3.7); automatic exposure; panorama created from seven images
    stitched together with Hugin 2011.0.0 Panoramic Photo Stitcher.
    * Upheaval Dome, Utah Coordinates: 38.43473, -109.95138

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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
    * MyShake - University of California, Berkeley
    * 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 2 weeks, 6 days, 21 minutes
    * Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)
  • From Black Panther@21:1/186 to All on Wed Apr 20 12:01:04 2022
    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.


    Drone Image Over Mount Etna

    April 20, 2022

    EtnaFlySunMoon-16012022

    Photographer: Rosario Catania

    Summary Author: Rosario Catania

    The photo above was taken with my drone during sunset on the cold
    evening of January 16, 2022. The Moon had already risen in the
    east, which made for a beautiful diametrically opposed view with
    the Sun. Splitting the two in the photo is Mount Etna, majestic
    and white with snow. This drone photo was taken in sphere mode and was
    subsequently planarized to have a diagonal 180-degree view without
    deformation. Besides the Sun and Moon, what left me breathless was the
    sharp contrast between the dramatic sky and the Earth colored by the
    intense red of a clear and cold sunset. An emotion to share with the
    whole world.
    * Nicolosi, Parsifal Park, Sicily Coordinates: 37.6426, 14.9944

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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
    * MyShake - University of California, Berkeley
    * 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 7 weeks, 2 days, 21 minutes
    * Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)
  • From Black Panther@21:1/186 to All on Fri May 20 12:00:30 2022
    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.


    Haleakala Shadow and Belt of Venus

    May 20, 2022

    Haleakala umbra

    Photographer: Steve Kluge

    Summary Author: Steve Kluge

    Every morning crowds gather on the summit of Haleakala on Maui,
    Hawai'i, to watch the sunrise. While most folks' pre-sunrise attention
    is focused to the eastern horizon, I like to look west to see the
    Earth's umbra (shadow) and the Belt of Venus slowly setting.
    From this 10,000-foot-high (3048 m) perch in the middle of the Pacific
    Ocean, the curvature of Earth's umbra is clearly visible. I took this
    photo on one of my sunrise visits, and I've always enjoyed seeing the
    shadow of Haleakala cast over West Maui shortly after sunrise at the
    summit.
    * Maui, Hawai'i Coordinates: 20.7139, -156.2501

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    Atmospheric Effects Links

    * Atmospheric Optics
    * Optic Picture of Day: Gruppo Astrofili Galileo Galilei
    * 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 11 weeks, 4 days, 20 minutes
    * Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)
  • From Black Panther@21:1/186 to All on Mon Jun 20 12:00:58 2022
    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.


    Moonlit Monte Viso

    June 20, 2022

    Mer-de-nuages-sous-les-etoiles-et-mont-viso

    Photographer: Jean-François Gely

    Summary Author: Jean-François Gely

    The photo above shows the Cottian Alps and starlight as captured
    from Col de Bouchet on the French-Italian border. Viewed together,
    this perspective of the Milky Way with Monviso (also called
    Monte Viso) half buried by snow and a sea of clouds in the valleys
    below, serves as the perfect way to feel closer to what nature has to
    tell us. The early hour lighting also adds to the scene as it is
    illuminated by the Moon and contrasted by the Nin Sardi Refuge.

    Leading up to this trip, I analyzed satellite images to find out if a
    sea of ​​clouds was present on the Italian side of the pass.
    Fortunately, my analysis was correct and this rewarding photo was
    captured after a 5 mile or 8 kilometer hike that included 2887 ft / 880
    m in elevation gain. Even if the sea of clouds below had gradually
    dissipated, their presence still provided an inexplicable emotion.

    From this perspective, the expanse of clouds under my feet alongside
    the moonlit mountains gave me the impression of floating. Just me,
    under the stars, facing 14°F / -10°C temperatures looking over this
    remarkable landscape, almost made me forget the night descent with my
    headlamp. Altogether, an indescribable feeling that I sincerely wish
    you all to experience.
    Photo details: Unfiltered Canon 6D + Samyang 24mm f/1.4 lens on simple
    tripod. Foreground: 19 tiles. Each tile is a single exposure of 30
    seconds at ISO 1600 and f/2.8. Sky: 19 tiles. Each tile is a single
    exposure of 10 seconds at 6400 and f/2.8.
    * Col Bouchet, France-Italy Border Coordinates: 44.8174, 7.0196

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    Cloud Links

    * Atmospheric Optics
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    * 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 16 weeks, 21 minutes
    * Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)
  • From Black Panther@21:1/186 to All on Wed Jul 20 12:01:28 2022
    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.


    Dendrite Inclusion in Opal

    July 20, 2022


    Opal

    Photographer: Mila Zinkova

    Summary Author: Mila Zinkova
    In an earlier Earth Science Picture of the Day, I showed
    dendrite crystals in amber. This type of crystal, typically
    formed from metal oxides, has also been observed in precious
    opals found in Ethiopia, as featured above. However, in opals, the
    dendrites are sometimes presented as 3D like plumes. Click here to
    see a video of this amazing opal with dendrite inclusions. It really
    does look like a magical forest.


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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
    * MyShake - University of California, Berkeley
    * 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 20 weeks, 2 days, 21 minutes
    * Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)
  • From Black Panther@21:1/186 to All on Sat Aug 20 12:01:00 2022
    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.


    Carachipampa Volcano, Argentina

    August 19, 2022

    Carlos_pampas_11BIS

    Photographer: Carlos Di Nallo
    Summary Author: Carlos Di Nallo

    Featured above is a photo of the Carachipampa Volcano (dark color
    at right center) located in the province of Catamarca, Argentina, in
    the region called Puna. Pumice stone fields surround the volcanic
    cone, showing that, in the past, the area was the scene of considerable
    volcanic activity.

    Also shown, in the foreground, are salt flats and sand dunes,
    typical of the arid climate that characterizes this region. Panoramic
    photos taken on May 12, 2022.

    Photo details: Canon 6D camera; Canon 17/40mm lens.


    Carachipampa Volcano, Argentina Coordinates: -26.760278, -67.741389


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    Geography Links

    * Atlapedia Online
    * CountryReports
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    * 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 24 weeks, 5 days, 21 minutes
    * Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)
  • From Black Panther@21:1/186 to All on Tue Sep 20 12:01:18 2022
    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.


    Limestone Stratification near Modica, Sicily

    September 20, 2022

    Rocce sedimentarie 35mm

    Photographer: Emanuele Nifosì
    Summary Author: Emanuele Nifosì

    Along the " Fiumara" (provincial road SP 54), a road that I travel
    every morning on my way to school, the rocky spur featured above has
    long fascinated me. It follows a bend in a stream near the Baroque
    town of Modica (Ragusa, Sicily, Italy). This spur, part of the
    Hyblaean Range, is composed of white limestone strata. When
    facing the Sun, it's visible from miles away. Photo taken on April 11,
    2022 (at 16:30 local time).

    Photo details: Nikon D700 camera; 48mm; ISO 200; f/8; 1/400 second
    exposure.
    * Modica, Ragusa, Sicily, Italy Coordinates: 36.8588, 14.7608

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    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 29 weeks, 1 day, 21 minutes
    * Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)