The Hellenic Navy (HN) (Greek: Πολεμικό Ναυτικό, Polemikó Naftikó, abbreviated ΠΝ) is the naval force of Greece, part of the Greek Armed Forces. The modern Greek navy has its roots in the naval forces of various Aegean Islands, which fought in the Greek War of Independence. During the periods of monarchy (1833–1924 and 1936–1973) it was known as the Royal Navy (Βασιλικόν Ναυτικόν, Vasilikón Naftikón, abbreviated ΒΝ).The total displacement of all the navy's vessels is approximately 150,000 tons.The motto of the Hellenic Navy is "Μέγα το της Θαλάσσης Κράτος" from Thucydides' account of Pericles' oration on the eve of the Peloponnesian War. This has been roughly translated as "Great is the country that controls the sea". The Hellenic Navy's emblem consists of an anchor in front of a crossed Christian cross and trident, with the cross symbolizing Greek Orthodoxy, and the trident symbolizing Poseidon, the god of the sea in Greek mythology. Pericles' words are written across the top of the emblem. "The navy, as it represents a necessary weapon for Greece, should only be created for war and aim to victory."...............The Hellenic Merchant Marine refers to the Merchant Marine of Greece, engaged in commerce and transportation of goods and services universally. It consists of the merchant vessels owned by Greek civilians, flying either the Greek flag or a flag of convenience. Greece is a maritime nation by tradition, as shipping is arguably the oldest form of occupation of the Greeks and a key element of Greek economic activity since the ancient times. Nowadays, Greece has the largest merchant fleet in the world, which is the second largest contributor to the national economy after tourism and forms the backbone of world shipping. The Greek fleet flies a variety of flags, however some Greek shipowners gradually return to Greece following the changes to the legislative framework governing their operations and the improvement of infrastructure.Blogger Tips and Tricks
This is a bilingual blog in English and / or Greek and you can translate any post to any language by pressing on the appropriate flag....Note that there is provided below a scrolling text with the 30 recent posts...Αυτό είναι ένα δίγλωσσο blog στα Αγγλικά η/και στα Ελληνικά και μπορείτε να μεταφράσετε οποιοδήποτε ποστ σε οποιαδήποτε γλώσσα κάνοντας κλικ στη σχετική σημαία. Σημειωτέον ότι παρακάτω παρέχεται και ένα κινούμενο κείμενο με τα 30 πρόσφατα ποστς....This is a bilingual blog in English and / or Greek and you can translate any post to any language by pressing on the appropriate flag....Note that there is provided below a scrolling text with the 30 recent posts...Αυτό είναι ένα δίγλωσσο blog στα Αγγλικά η/και στα Ελληνικά και μπορείτε να μεταφράσετε οποιοδήποτε ποστ σε οποιαδήποτε γλώσσα κάνοντας κλικ στη σχετική σημαία. Σημειωτέον ότι παρακάτω παρέχεται και ένα κινούμενο κείμενο με τα 30 πρόσφατα ποστς.........

Monday, November 16, 2009

Japanese Large Radar in Antartica..[ 490 ]

Japan to install largest atmosphere observation radar in Antarctica

The Middle Atmosphere radar located in the Shiga Prefecture city of Koka, the same type of new radar set to be installed in Antarctica. (Photo courtesy of the Research Institute for Sustainable Humanosphere, Kyoto University)
The Middle Atmosphere radar located in the Shiga Prefecture city of Koka, the same type of new radar set to be installed in Antarctica. (Photo courtesy of the Research Institute for Sustainable Humanosphere, Kyoto University)

(Mainichi News, Japan) November 16, 2009

Japan will install an atmosphere observation radar at its Showa Station in Antarctica next fiscal year, which is expected to provide more precise global warming forecasts, it's been learned.

Other countries' radars in Antarctica can reportedly observe only the lower part of the stratosphere, a dozen kilometers or so above the ground, but the new radar will be capable of observing almost the entire atmosphere, up to about 500 kilometers high. It will be the largest atmosphere observation radar in Antarctica.

The skies over polar areas are susceptible to global warming. "Researchers around the world have waited a long time for the new radar. It is expected to help analyze the mechanisms of global warming and improve forecast accuracy," says a project official.

According to the National Institute of Polar Research, which is leading the research project, the new, 160-meter-diameter radar consists of 1,045 antennas arranged in a circle. Australia's 50-meter-square radar is currently the only atmosphere radar that makes steady observations in Antarctica, but the new radar will reportedly have radio waves that are about five times stronger than those of the Australian radar.

The Showa Station has been visually confirming clouds seven times a day and observing horizontal winds twice a day by flying balloons with observation devices about 30 kilometers high. After installing the new radar, clouds about 50 to 80 kilometers high -- a zone which is susceptible to global warming -- and vertical winds are expected to be observed.

The new radar, which will be the world's second largest following Peru's atmosphere radar measuring 300 meters square, will be completed by the 52nd Japanese Antarctic Research Expedition that is scheduled to depart from Japan in November next year.

"A project we have been discussing over the past 10 years will be finally completed. The quality of Antarctic observations will be significantly improved," says new radar project leader Kaoru Sato, who is an atmospheric science professor at the University of Tokyo.



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