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Lake Kasumigaura and Tone River Near Chiba, Japan

35.6N 140.1E

December 8th, 2010 Category: Lakes, Rivers

Japan - December 6th, 2010

This orthorectified image focuses on Chiba Prefecture, Japan. Chiba, the capital city of Chiba Prefecture, can be observed in the lower left quadrant, approximately 40 km east of the center of Tokyo on Tokyo Bay.

Chiba City is also one of the Kantō region’s primary seaports, and is home to Chiba Port, which handles one of the highest volumes of cargo in the nation. The square contours of the seaport can be observed in the lower left corner.

Crossing more or less horizontally through the image center is the Tone River. It is 322 kilometers (200 mi) in length (the second longest in Japan after the Shinano) and has a drainage area of 16,840 square kilometers (6,500 sq mi) (largest in Japan). It gathers tributaries and pours into the Pacific Ocean at Choshi city in Chiba Prefecture. The Edo River branches away from the river and flows into Tokyo Bay.

The large body of water north of the river is Lake Kasumigaura, the second-largest lake in Japan, located 60 km to the north-east of Tōkyō. Lake Kasumigaura is actually the name given to a group of contiguous lakes, which includes the main lake, Nishiura, and two smaller lakes, Kitaura and Sotonasakaura, and also encompasses the rivers connecting them.

Izu and Boso Peninsulas Near Tokyo and Mount Fuji, Japan – March 6th, 2010

35.6N 139.6E

March 6th, 2010 Category: Image of the day, Mountains, Volcanoes

Japan - February 24th, 2010

Japan - February 24th, 2010

Two peninsulas near the city of Tokyo on Japan’s Honshu Island can be observed here: Izu Peninsula (center) and Boso Peninsula (right). Mount Fuji is also visible near the former, capped with snow.

Izu is a large mountainous peninsula with deeply indented coasts to the west of Tokyo. Formerly the eponymous Izu Province, Izu peninsula is now a part of Shizuoka prefecture. The peninsula has an area of 1,421.24 km² and its estimated population in 2005 was 473,942 people.

The southern portion of the peninsula is composed largely of breccia, and the central and northern portions consist of numerous highly eroded volcanos. The Amagi Mountain Range dominates the center of the peninsula with Mount Amagi (4,613 feet) and Mount Atami (2,539 feet) in the east and Mount Daruma (3,222 feet) in the west, with the eastern and western portions of the range extending underwater into Sagami Bay and Suruga Bay.

Bōsō Peninsula is a peninsula in Chiba prefecture. It forms the eastern edge of Tokyo Bay, separating it from the Pacific Ocean. Most of the peninsula is hilly, with some points as high as 400 metres (1,300 ft) above sea level. While the western part of the peninsula is highly urbanized (centered on the city of Kisarazu), the other coastal lowlands and interior river valleys are chiefly used for growing rice.

Industrial Areas Along Tokyo Bay, Japan – May 12th, 2009

35.4N 139.8E

May 12th, 2009 Category: Image of the day

Brazil - May 11th, 2009

Brazil - May 11th, 2009

Tokyo Bay, previously called Edo Bay, is located in the southern Kantō region of Japan. It is surrounded by the Boso Peninsula (Chiba Prefecture) to the east and the Miura Peninsula (Kanagawa Prefecture) to the west.

The ports of Tokyo, Chiba, Kawasaki, Yokohama, and Yokosuka are all located on Tokyo Bay.

On the western coast of Tokyo Bay, between Tokyo and Yokohama, the Keihin Industrial Area has been developed since the Meiji Era.

This was expanded to the Keiyo Industrial Area along the north and east coasts after World War II. The latter appears bright white here.

The only natural island in the Bay is Monkey Island. There are however many artificial islands built as naval fortifications during the Meiji and Taishō period. In the image, many ships can be seen moving around the bay and navigating up and down the rivers connected to it.

Mount Asama Volcano, Japan

February 4th, 2009 Category: Volcanoes

Mount Asama, Japan - February 4th, 2009

Mount Asama, Japan - February 4th, 2009

On February 2nd, Japan’s Mount Asama volcano, located in the center of Honshu Island, underwent a minor eruption.

The northwestern part of Tokyo is visible at the upper right. West of this area, Mount Asama can be seen, as can Mount Fuji (almost due south of Mount Asama, in the lower right quadrant).

Japan’s Kyodo news agency reported that the volcano, on the border of Japan’s Gunma and Nagano prefectures, produced ash showers that reached as far as Tokyo.

Officials warned of the possibility of large deposits within a 4-kilometer radius of the crater, at 2,568 meters above sea level.

Smoke was observed moving southeastward, and ash showers were experienced in Tokyo, Saitama, Kanagawa and Chiba prefectures, as well as in Karuizawa in Nagano Prefecture and Tomioka in Gunma Prefecture.

At the time of the eruption, the area was cloud-covered. In this cloud-free image, taken two days later, there is no evidence of smoke.