 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.


 EPOD 20th - Foggy Start to the Day in Budapest, Hungary

   September 02, 2020

    Budafog
   We’re celebrating 20 years of Earth Science Picture of the Day during
   the month of September! Today’s photo features a popular EPOD from the
   past. Thanks to all of our followers (on the blog, Facebook, Instagram
   and Twitter) for supporting us. Thanks also to all of you who’ve
   submitted your photos. We’re most appreciative. This EPOD was
   originally published June 01, 2013.

   Photographer:  Miklos Mayer
   Summary Author:  Miklos Mayer
   This photo shows the capital of Hungary, Budapest, under a blanket of
    fog on a cold, winter morning. Only a 666 ft (203 m) high
    chimney is able to peer through the thick fog. This is an example
   of valley fog or  radiation fog that often forms in low-lying areas
   on cold clear nights, especially in fall and winter. During the
   nighttime hours as the surface cools, if the  dew point is reached,
   fog will hug the ground, with a layer of warmer air above -- an
    inversion layer. In most cases, the foggy mantle is relatively
   shallow (tens of feet), but on occasion, it'll extend several hundred
   feet above the surface. Because this phenomenon was forecast, I
   positioned myself high above Budapest on Harmahatar Hill (1,575 ft or
   480 m high) a little before  daybreak in order to capture this
   scene. The atmosphere above the inversion layer was quite clear, thus
   the  Matra Mountains, some 50 mi (80 km) distant, could be seen on
   the eastern horizon. Photo taken on January 17, 2011.

   Photo Details: Camera: Canon EOS 1000D; Lens: EF28-105mm f/3.5-4.5 USM;
   Focal Length: 55.0mm; Aperture: f/1.8; Exposure Time: 0.033 s (1/30);
   ISO equiv: 100; Software: Adobe Photoshop Lightroom 3.4.1.
     * Budapest, Hungary Coordinates:  47.555869, 19.002779

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Cloud Links

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

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   Space Research Association.

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