• ES Picture of the Day 28 2020

    From Black Panther@21:1/186 to All on Wed Oct 28 11:00:28 2020
    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.


    Lake Bracciano, the Tyrrhenian Sea and Sunglint

    October 28, 2020

    20200712 7R305131web

    Photographer: Alessia Scarso
    Summary Author: Alessia Scarso
    Shown above is an aerial view of Lake Bracciano (Italy), in the
    foreground, the Tyrrhenian Sea, the islands of the Tuscan
    archipelago, and lastly Corsica island, which lies on the horizon
    line. The camera is facing the Sun. Note the sunglint on all of
    the water surfaces. This optical phenomenon results when sunlight is
    reflected off of a body of water at the same angle that the camera is
    observing. Though glinting is generally considered to be detrimental to
    remote sensing, in some cases it actually enhances details that
    can’t be detected otherwise, the roughness of the water surface, for
    example. Photo taken on July 12, 2020.

    Photo Details: Camera SONY ILCE-7RM3; Software Adobe Photoshop CC 2017
    (Macintosh); Exposure Time 0.0003s (1/3200); Aperture ƒ/4.0; ISO
    equivalent 100; Focal Length (35mm) 48
    * Lake Bracciano, Italy Coordinates: 42.121111, 12.231944

    Related EPODs

    Lake Bracciano, the Tyrrhenian Sea and Sunglint Sunrise over
    the Sierra Nevada Mountains EPOD 20th - Bisti Wilderness Mushrooms
    Cerro Tomolasta and Cloud Shapes Olympic Peninsula Bluff and
    Beach The Dolomites World Natural Heritage Area
    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 9 weeks, 1 day, 20 hours, 20 minutes
    * Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)
  • From Black Panther@21:1/186 to All on Sat Nov 28 11:00:34 2020
    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 - Lenticular Cloud Display

    November 28, 2020

    02clouds copy

    Every weekend we present a notable item from our archives. This EPOD
    was originally published November 28, 2003.

    Provided and copyright: Bill Willenberg
    Summary authors & editors: Bill Willenberg; Jim Foster

    The above photo shows but a glimpse of a spectacular lenticular cloud
    display, captured late in the day in mid-October, northwest of Salem,
    Oregon. This 8-layer cloud stack was the finale of a delightful
    orographic concert. On this particular afternoon, lenticular clouds
    were observed over the Willamette Valley, the Cascades Range (east of
    Salem) and the Salem Hills (south of Salem), but the few lenticular
    stacks that formed were confined to Oregon's coastal range and the Eola
    Hills. Lens-shaped lenticular clouds can form when moist air is cooled
    to the dewpoint as it's forced up over mountain slopes -- wherever
    stable moist air flows over a mountain range. As this happens,
    sometimes a series of wave clouds are created on the downwind or lee
    side of the range. If conditions are just right (moist layers are in
    rather close proximity), the clouds can appear to stack upon one
    another.


    Related EPODs

    Archive - Lenticular Cloud Display Parisian Twilight Sky
    EPOD 20th - Mammatus Above Brookfield EPOD 20th - Nacreous
    Clouds Above Antarctica EPOD 20th - Foggy Start to the Day in
    Budapest, Hungary Encore - Morning Glory Over Southeastern Brazil
    More...

    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 13 weeks, 4 days, 21 hours, 20 minutes
    * Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)