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FMI - Weather and Climate - Climate in Finland - The seasons
Lapland. North of the Arctic Circle, part of the winter is the period known as the polar night, when the sun does not rise above the horizon at all. In the northernmost extremity of Finland, ... ends a month earlier than the south coast. The regions north of the Arctic Circle are characterized by 'polar days', when the sun does not set at all. The northernmost parts of Finland have 73 such days ...
fmi.fi

Borge Ousland and Mike Horn's Trek to the North Pole - National Geographic Adventure Magazine
Complete Darkness—Audio Interview Text by Brad Wieners Photographs by Kjell Ove Storvik; Sebastian Devenish POLAR OPPOSITES: Børge Ousland (left) and Mike Horn will have to reconcile two different styles of exploration ... the first-ever trek to the North Pole in the pitch black 24-hour dark of polar night. They depart around January 15. ONLINE EXCLUSIVE: Listen to an audio interview with Børge ...
nationalgeographic.com

Reports to the Nation on Our Changing Planet: Our Ozone Shield
In the prelude to ozone depletion, ice particles form during the polar night, when several months of darkness descend on Antarctica and temperatures plummet below -80 degrees (C ... , they discovered strong hints that such compounds had destroyed significant amounts of ozone in the polar region. But because the Arctic atmosphere is not as isolated, the ozone losses there appear to ...
www.ogp.noaa.gov

Why the banning of Chlorofluorocarbons is paranoia.
However, papers at last summer's international ozone conference at Snowmass, Colo., cast doubt that this phenomenon is a mirror of global ozone decline. Perhaps the erosion of this ozone during the polar night is due to the same interaction of the solar wind with the Earth magnetic field that causes the auroras. It has been ...
ourcivilisation.com

remote sensing
The TIROS-N Operational Vertical Sounder (TOVS) measures radiances. Since all these satellites are polar orbiters, there may be gaps in data on any given day. TOMS A TOMS instrument was ... CFC-12), NO, NO2, HNO3, and ClONO3. Unlike data from TOMS, CLAES can provide data at night, since it measures emitted radiation rather than solar radiance. However, its orbit prevents collection of data ...
www.cotf.edu

NASA Scatterometer Climate Record Pathfinder (Center for Remote Sensing - BYU)
Because the scatterometer radar signal can penetrate the surface, a scatterometer ... (1999+), and SeaWinds on ADEOS-II/Midori2 (2003). With their rapid global coverage, day or night and all-weather operation, scatterometers offer a unique tool for long-term climate studies. The ...
www.scp.byu.edu

NOAA/NGDC - Earth Observation Group - Defense Meteorological Satellite Progam, Boulder
The combination of day/night and dawn/dusk satellites allows monitoring of global information such as clouds every 6 hours. The ... T1, T2) cover one half the width of the visible and infrared swath. These instruments cover polar regions at least twice and the equatorial region once per day. The space environment sensors ( ...
www.ngdc.noaa.gov

Toxic chemicals used as flame retardants are rapidly building up in the bodies of people and wildlife around the world
PCB's and DDT did. Even polar bears near the North Pole and sperm whales feeding in deep ocean waters are contaminated with them. ... and add a special wish. The gift that is remembered every time they look up at the night sky. Useful Tips Make this your default browser page. Internet Explorer, Netscape Navigator. Bookmark This Web Site ...
ecolivingcenter.com

Polar bear control and management, Ursus arctos
(Odobenus rosmarus), white whales (Delphinapterus leucas), narwhals (Monodon monoceros), and harp seals (Pagophilus groenlandicus). Polar bears also eat small mammals, bird eggs, sea weed, grass, and other vegetation, although these ... an area for several days or even weeks. Polar bears sleep about 7 to 8 hours a day. They tend to be more active at ``night'' during the 24-hour daylight that ...
icwdm.org

The night sky in the World -  Pierantonio Cinzano
Operational Linescan System U.S. Air Force Defense Meteorological Satellite Program (DMSP) satellites are in low altitude (830 km) sun-synchronous polar orbits with an orbital period of 101 minutes. With 14 orbits per day they generate a global night time and day time coverage of the Earth every 24 hours with their main ...
lightpollution.it