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Maritime Southeast Asia

Cultural and economic area within Southeast Asia

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Through Singapore, Australia and Nationalism

The terms Island Southeast Asia and Insular Southeast Asia are sometimes given the same meaning as Maritime Southeast Asia. Other definitions restrict Island Southeast Asia to just the islands between Mainland Southeast Asia and the continental shelf of Australia and New Guinea. There is some variability as to whether Taiwan is included in this. Peter Bellwood includes Taiwan in his definition, as did Robert Blust, whilst there are examples that do not.

The 16th-century term "East Indies" and the later 19th-century term "Malay Archipelago" are also used to refer to Maritime Southeast Asia.

Arab merchants and cartographers referred to Maritime Southeast Asia as Al-Jaza'ir Al-Jawi or Java archipelago. People originating from this region were commonly identified by the name 'Al-Jawi'.

In Indonesia, the Old Javanese term "Nusantara" is also used as a synonym for Maritime Southeast Asia. The term, however, is nationalistic and has shifting boundaries. It usually only encompasses Peninsular Malaysia, the Sunda Islands, Maluku, and often Western New Guinea and excludes the Philippines.

Stretching for several thousand kilometres, the area features a very large number of islands and boasts some of the richest marine, flora and fauna biodiversity on Earth.

The main demographic difference that sets Maritime Southeast Asia apart from modern Mainland Southeast Asia is that its population predominantly belongs to Austronesian groups. The region contains some of the world's most highly urbanized areas—the Greater Manila Area, Greater Jakarta, Singapore, and Greater Kuala Lumpur—and yet a majority of islands in this vast region remain uninhabited by humans.

Geography

The land and sea area of Maritime Southeast Asia exceeds 2 million km2. These are more than 25,000 islands of the area that comprise many smaller archipelagoes.

The major groupings are:

The seven largest islands are Borneo, Sumatra, Sulawesi and Java in Indonesia; and Luzon and Mindanao in the Philippines.

In the natural sciences, the region is sometimes known as the Maritime Continent. It also corresponds to the biogeographical region of Malesia (not to be confused with "Malaysia"), with shared tropical flora and fauna.

Geologically, the archipelago is one of the most active volcanic regions in the world, producing many volcanoes, especially in Java, Sumatra, and the Lesser Sunda Islands region, where most volcanoes over 3,000 m (9,800 ft) are situated. Tectonic uplifts also produced large mountains, including the highest in Mount Kinabalu in Sabah, Malaysia, with a height of 4,095.2 m (13,436 ft) and Puncak Jaya on Papua, Indonesia at 4,884 m (16,024 ft). Other high mountains in the archipelago include Puncak Mandala, Indonesia at 4,760 m (15,620 ft) and Puncak Trikora, Indonesia, at 4,750 m (15,580 ft).

The Philippines, Malaysia, Brunei, Northern Sumatra, Northern Borneo and Northern Maluku are in the Northern Hemisphere. Most of Indonesia and Timor-Leste are below the equator in the Southern Hemisphere.

Climate

In the Köppen climate classification, most of Maritime Southeast Asia has a tropical rainforest climate. The Philippine island Luzon has a tropical rainforest and tropical savannah climate in the center and west-coast. Indonesia's southern islands (center and east of Java, Borneo etc) have a tropical monsoon climate. Timor-Leste has a tropical savannah climate.

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