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Karimata Strait
Karimata Strait
Selat Karimata (Indonesian)
	Karimata Strait
	Karimata Strait
Coordinates	2°05′S 108°40′E / 2.083°S 108.667°E
Type	strait
Basin countries	Indonesia
References	Selat Karimata: Indonesia National Geospatial-Intelligence Agency, Bethesda, MD, USA

The Karimata Strait (alternatively, Carimata^[1] or Caramata;^[2] Indonesian: Selat Karimata) is a wide strait that connects the South China Sea to the Java Sea, separating the Indonesian islands of Belitung to the west and Borneo (Kalimantan) to the east. It is the widest strait between the South China Sea and the Java Sea (other straits include the Bangka and Gaspar straits), but its numerous islands and reefs reduce its navigability. Its weather and current is influenced by the annual southeast and northwest monsoon.

It was used as an invasion route by the British fleet in the 1811 Invasion of Java in the Dutch East Indies. More recently, it was the site of the crash of Indonesia AirAsia Flight 8501, and the location of the 2016 edition of Sail Indonesia (dubbed "Sail Karimata Strait").

Geography

The strait is about 128 miles (111 nmi; 206 km) wide from the east coast of Belitung (also known as Billiton) to the west coast of Borneo (Kalimantan).^[3] The much narrower Gaspar Strait separates Belitung from Bangka Island to the west.^[4] Bangka lies close to the east coast of Sumatra, separated from it by the Bangka Strait.^[5] To the east of Belitung lie reefs and a group of islets known as the Montaran Islands, extending up to 40 nautical miles (46 mi; 74 km) from Belitung's northeastern coast.^[6] The Karimata Islands lie in the eastern part of the Karimata Strait, northeast of Belitung, southwest of Maja Island, and off-shore from the west coast of Borneo.^[1] The presence of these islands and reefs reduce the width of the main navigable channel to about 45 nautical miles (52 mi; 83 km).^[1] Outside this main fairway, there are multiple navigable channels to the east of Karimata Islands or between the islands.^[7]

The Rivers Kapuas, Kendawangan, Pawan, and Sambas (in Borneo), as well as the Rivers Barumun and Musi (in Sumatra) empty to the strait.^[8]

Climate

The southeast monsoon prevails in the strait from about the end of May, which comes with strong southeast or south-southeast wind, a dry weather, and mist that can obscure visibility. The northwest monsoon comes from the beginning of October, characterized by thunderstorms, rain and squalls alternating with calm days with fair weather. The biggest rainfall occur from November to February. From February, the weather becomes unpredictable because of the changing monsoon, before settling again around the end of May.^[9]

Currents and water transport

The current strength of the strait vary depending on the monsoon wind. At the peak of either monsoon, the current can run up to 6 kilometres per hour (3 nautical miles per hour) When the monsoon is light, "there is little or no current" and the direction may be subject to the tidal stream.^[10]

The strait's currents run between the South China Sea to its north and the Java Sea to its south.^[11] Since it is relatively shallow, with the depth of 50 metres (160 ft) or less, the volume transported by the current is relatively small.^[12] A 2007–2008 study by a group of Indonesian and Chinese researchers found that the transport volume averaged 500,000 m³/second (or 0.5 Sv) with a net southward direction (i.e. to the Java Sea).^[13] During the northern hemisphere winter, roughly during the northwest monsoon, water flowed southward averaging 2.7 Sv.^[13] The flow was reversed during the northern hemisphere summer, roughly during the southwest monsoon, with an average transport of 1.2 Sv.^[13]

History

It was known to British sailors in the 18th and 19th centuries as the Caramata Passage. The strait was used as a route by the British fleet for its Invasion of Java (1811), sailing from the British base in Malacca to the island of Java, then part of the Dutch East Indies.^[2] Initially, the British were unsure of the strait's practicability, and hesitated between taking it or a northeast passage around the north of Borneo and through Makassar Strait.^[14] A report by Sir Thomas Stamford Raffles, then a British officer in Malacca, recommended taking the Karimata route, which he considered "less dangerous than tedious" than the northeast passage during that time of year.^[15] Raffles estimated that this journey would take the British fleet between a month and six weeks for "the fleet sailing in divisions".^[15] The British Governor-General of India The Lord Minto decided to take Raffles's suggestion over the objection of some naval officers.^[16] The fleet, numbering about 100 vessels and transporting about 11,000 troops, departed Malacca between 11 and 18 June 1811,^[17] and reached the coast of Java on 30 July after a smooth journey, exactly six weeks after Minto and Raffles' departure.^[18]

A 1915 publication by the United States Hydrographic Office commented that despite being much wider, the strait did not have as much traffic as the parallel Bangka or Gaspar Straits. The publication said that the advantage of its breadth was often outweighed by the danger posed by shoals in the strait, as well as its more irregular currents.^[1]

Recent events

On 28 December 2014 Indonesia AirAsia Flight 8501 crashed into the strait, after losing contact over the Java Sea while en route to Singapore from Surabaya, East Java. All 162 passengers and crew aboard the plane perished, however, only 116 were physically recovered by the time search-and-rescue operations concluded in March 2015.^[19]

Sail Indonesia (2016), also dubbed "Sail Karimata Strait 2016", was a sailboat competition held within the strait. Four Indonesian provinces—on both sides of the strait (West Kalimantan, Jambi, Bangka Belitung and the Riau Islands, respectively)—hosted the race, with the peak event having taken place on 15 October on Datuk Island, North Kayong Regency, West Kalimantan.^[20]^[21]

References

Citations

^ ^a ^b ^c ^d Asiatic Pilot, p. 224.
^ ^a ^b Boulger 1897, p. 102.
^ Merriam-Webster 1997, p. 573.
^ Asiatic Pilot, p. 179.
^ Asiatic Pilot, p. 139.
^ Asiatic Pilot, pp. 224, 236.
^ Asiatic Pilot, pp. 224–5.
^ Milliman & Farnsworth 2013, pp. 321–322.
^ Asiatic Pilot, p. 26.
^ Asiatic Pilot, p. 225.
^ Indo-Pacific Climate, p. 158.
^ Indo-Pacific Climate, p. 161.
^ ^a ^b ^c R. Dwi Susanto et al. 2013, p. 1.
^ Raffles 2013, pp. 39, 41.
^ ^a ^b Raffles 2013, p. 39.
^ Boulger 1897, pp. 102–103.
^ Boulger 1897, p. 125.
^ Boulger 1897, p. 103.
^ Hradecky, Simon (30 December 2014). "Crash: Indonesia Asia A320 over Java Sea on Dec 28th 2014, aircraft went missing believed to have impacted waters". The Aviation Herald. Retrieved 30 December 2014.
^ "Jokowi opens Sail Karimata Strait 2016 in West Kalimantan". The Jakarta Post. 15 October 2016.
^ "Sail Karimata Strait 2016 to involve four provinces". Antara. 30 May 2016.

Bibliography

Boulger, Demetrius Charles (1897). The Life of Sir Stamford Raffles. London: Marshall.
Merriam-Webster (1997). Merriam-Webster's Geographical Dictionary. Merriam-Webster. ISBN 978-0-87779-546-9.
Milliman, John D.; Farnsworth, Katherine L. (2013). River Discharge to the Coastal Ocean: A Global Synthesis. Cambridge University Press. ISBN 978-1-139-49350-5.
Raffles, Sophia (5 September 2013). Memoir of the Life and Public Services of Sir Thomas Stamford Raffles. Cambridge University Press. ISBN 978-1-108-06604-4.
United States Hydrographic Office (1915). Asiatic Pilot: Sunda Strait and the southern approaches to China Sea with west and north coasts of Borneo and off-lying dangers. United States Hydrographic Office.
R. Dwi Susanto; Wei Zexun; Adi Rameyo T.; Fan Bin; Li Shujiang; Fang Guohong (2013). "Observations of the Karimata Strait througflow from December 2007 to November 2008". Acta Oceanologica Sinica. 32 (5): 1–6. doi:10.1007/s13131-013-0307-3.
Swadhin Kumar Behera; Toshio Yamagata (9 December 2015). Indo-Pacific Climate Variability and Predictability. World Scientific. ISBN 978-981-4696-63-0.

[FOOTNOTEAsiatic_Pilot224-1] Asiatic Pilot, p. 224.

[FOOTNOTEBoulger1897102-2] Boulger 1897, p. 102.

[FOOTNOTEMerriam-Webster1997573-3] Merriam-Webster 1997, p. 573.

[FOOTNOTEAsiatic_Pilot179-4] Asiatic Pilot, p. 179.

[FOOTNOTEAsiatic_Pilot139-5] Asiatic Pilot, p. 139.

[FOOTNOTEAsiatic_Pilot224,_236-6] Asiatic Pilot, pp. 224, 236.

[FOOTNOTEAsiatic_Pilot224–5-7] Asiatic Pilot, pp. 224–5.

[FOOTNOTEMillimanFarnsworth2013321–322-8] Milliman & Farnsworth 2013, pp. 321–322.

[FOOTNOTEAsiatic_Pilot26-9] Asiatic Pilot, p. 26.

[FOOTNOTEAsiatic_Pilot225-10] Asiatic Pilot, p. 225.

[FOOTNOTEIndo-Pacific_Climate158-11] Indo-Pacific Climate, p. 158.

[FOOTNOTEIndo-Pacific_Climate161-12] Indo-Pacific Climate, p. 161.

[FOOTNOTER._Dwi_SusantoWei_ZexunAdi_Rameyo_T.Fan_Bin20131-13] R. Dwi Susanto et al. 2013, p. 1.

[FOOTNOTERaffles201339,_41-14] Raffles 2013, pp. 39, 41.

[FOOTNOTERaffles201339-15] Raffles 2013, p. 39.

[FOOTNOTEBoulger1897102–103-16] Boulger 1897, pp. 102–103.

[FOOTNOTEBoulger1897125-17] Boulger 1897, p. 125.

[FOOTNOTEBoulger1897103-18] Boulger 1897, p. 103.

[AvHerald-19] Hradecky, Simon (30 December 2014). "Crash: Indonesia Asia A320 over Java Sea on Dec 28th 2014, aircraft went missing believed to have impacted waters". The Aviation Herald. Retrieved 30 December 2014.

[20] "Jokowi opens Sail Karimata Strait 2016 in West Kalimantan". The Jakarta Post. 15 October 2016.

[21] "Sail Karimata Strait 2016 to involve four provinces". Antara. 30 May 2016.

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PROFILPELAJAR.COM

Karimata Strait

Geography

Climate

Currents and water transport

History

Recent events

References

Citations

Bibliography

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