Jump to content

Typhoon Nina (1975)

From Wikipedia, the free encyclopedia
This article is about Pacific typhoon in 1975. For other storms of the same name, see List of storms named Nina and List of storms named Bebeng.
Typhoon Nina (Bebeng)
Typhoon Nina on August 2
Meteorological history
FormedJuly 30, 1975
Remnant lowAugust 6, 1975
DissipatedAugust 8, 1975
Unknown-strength storm
10-minute sustained (JMA)
Lowest pressure900 hPa (mbar); 26.58 inHg
Category 4-equivalent super typhoon
1-minute sustained (SSHWS/JTWC)
Highest winds250 km/h (155 mph)
Lowest pressure916 hPa (mbar); 27.05 inHg
Overall effects
Fatalities126,000 total
Damage$1.2 billion (1975 USD)
Areas affected
IBTrACSEdit this at Wikidata
Part of the 1975 Pacific typhoon season

Typhoon Nina, named Bebeng by PAGASA, was an extremely deadly tropical cyclone that brought catastrophic damage across the country of China in the summer of 1975. It formed on July 30 and gradually intensified as it moved generally to the west. On August 2, Nina reached peak intensity, and a day later the typhoon struck Taiwan. It weakened before moving ashore southeastern China. While moving slowly through central China, it dropped heavy rainfall and caused several dam failures, including the Banqiao Dam. It is one of the deadliest typhoons in the Pacific. Flooding from the Banqiao Dam collapse killed 26,000 people, with 100,000 more dying from subsequent famine and diseases.[1][2][3]

Meteorological history

[edit]
Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
Saffir–Simpson scale
  Tropical depression (≤38 mph, ≤62 km/h)
  Tropical storm (39–73 mph, 63–118 km/h)
  Category 1 (74–95 mph, 119–153 km/h)
  Category 2 (96–110 mph, 154–177 km/h)
  Category 3 (111–129 mph, 178–208 km/h)
  Category 4 (130–156 mph, 209–251 km/h)
  Category 5 (≥157 mph, ≥252 km/h)
  Unknown
Storm type
triangle Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

A well defined trough line extending southeastward into the Philippine Sea spawned a disturbance on July 29. After its initial status as a disturbance, Tropical Depression 04W was designated and moved southwestward for 36 hours as the structure of the system began to organize. On July 31, the depression slowed and began to rapidly intensify, becoming a tropical storm and was named "Nina". It began to turn to the northwest afterward. A subtropical ridge prevented Nina from turning further north and it began to track west-northwest just before reaching typhoon intensity.

Nina underwent explosive development in the late hours of August 1. Aircraft reconnaissance reported a 65 hPa drop of pressure, with winds increasing from a mere 65 to 130 knots (75 to 150 mph; 120 to 241 km/h) the day after. During that period, it attained its peak intensity of 135 knots (155 mph; 250 km/h). The typhoon began to weaken as it approached Taiwan, making landfall near the coastal city of Hualien as a Category 3 storm with 100 kn (120 mph; 190 km/h) winds.[4]

The storm began to weaken as it went across the island's central mountain range, sparing the most populated areas from the eyewall. It entered the Formosa Straits as a weak typhoon, making another landfall near Jinjiang, Fujian.[5] After moving northwest and crossing Jiangxi, it turned north on the night of August 5 near Changde, Hunan. A day later, the storm moved over Xinyang, Henan, and was later blocked by a cold front near Zhumadian, Henan for three days.[6] The stationary thunderstorm system brought heavy rainfall, causing the infamous collapse of the Banqiao Dam. The storm moved southwest on August 8, and dissipated soon afterwards.[7]

Impact

[edit]
Deadliest tropical cyclones since 1900[8][9][10][11]
Rank Name/Year Region Fatalities
1 Bhola 1970 Bangladesh 300,000
2 Bangladesh 1991 Bangladesh 138,866
3 Nargis 2008 Myanmar 138,373
4 Unnamed 1911 Bangladesh 120,000
5 Unnamed 1917 Bangladesh 70,000
6 Harriet 1962 Thailand, Bangladesh 50,935
7 Unnamed 1919 Bangladesh 40,000
8 Nina 1975 China 26,000
9 Unnamed 1958 Bangladesh 12,000
Unnamed 1965 Bangladesh

Taiwan

[edit]

Upon making landfall in Taiwan, the storm brought winds of 185 km/h (115 mph) to places near the storm's eye.[12] Wind gusts were also measured up to 222 km/h (138 mph).[13] Widespread heavy rainfall, peaking around 700 mm (28 in),[14] from the storm triggered deadly flooding and landslides which killed 29 people and injured 168 others. Reports from the island indicate that 3,000 homes were damaged or destroyed by the typhoon.[12] In the city of Hualien alone, four people were killed, 561 homes were destroyed, and 1,831 more homes were damaged.[15] Across the island, domestic flights, trains, and bus services were all suspended due to the storm; however, Taipei Songshan Airport remained open for international flights.[16]

China

[edit]

Due to the interaction with the mountains of Taiwan, Nina weakened to a tropical storm before making landfall in China. The storm crossed the coastline with winds of 110 km/h (70 mph); however, little damage resulted near where the system struck land.[12] Further inland, the remnants of the storm produced widespread torrential rainfall, with more than 400 mm (16 in) falling across an area of 19,410 km2 (7,490 sq mi). The heaviest rainfall was recorded along the Banqiao Dam where 1,631 mm (64.2 in) of rain fell, 830 mm (33 in) of which fell in a six-hour span.[17] These rains led to the collapse of the Banqiao Dam, which received 1-in-2000-year flood conditions. In all, 62 dams failed during the disaster, causing large temporary lakes and US$1.2 billion (equivalent to $5.4 billion in 2024) in damage.[18] The floods killed 26,000 people, while another 100,000 people died from subsequent famine and disease, with some sources suggesting a higher total death toll as many as 240,000.[1][2][3][19]

See also

[edit]

References

[edit]
  1. ^ a b "1975年那个黑色八月（上）" [The Dark August of 1975 (1)]. People's Daily Online (in Chinese). China Energy News. 2012-08-20. Archived from the original on 2020-05-06. Retrieved 2020-03-25. 长期以来，官方公布的数据一直备受质疑。譬如美国Discovery频道制作的"10 top technological catastrophe in the world"（世界十大科技灾难）专题片即认为：溃坝造成的直接死亡，加上后续因缺粮、感染、传染引起的死亡，人数共计24万多人。无论是2.6万，还是3.2万，或者是24万，事实上，官方从来也都没有过准确的伤亡数据。...... 8月20日，省委有个初步统计数字，说全省死亡85600多人，连同外地在灾区死亡的人数在内，最多不超过10万人。当时省委说，这个数字比较准确。所以中央慰问团在给毛主席、党中央写的关于河南、安徽灾情报告中，用了这个数字。
  2. ^ a b Fish, Eric (2013-02-08). "The Forgotten Legacy of the Banqiao Dam Collapse". The Economic Observer. Archived from the original on 2021-05-06. Retrieved 2020-03-25.
  3. ^ a b "75年河南水灾：滔天人祸令十万人葬身鱼腹" [The 1975 Henan Flood: one-hundred thousand people died in a heinous man-made disaster]. Phoenix New Media (in Chinese). 2008-08-10. Archived from the original on 2021-01-07. Retrieved 2020-03-25.
  4. ^ "Archived copy" (PDF). Archived from the original (PDF) on 2010-02-02. Retrieved 2009-11-17.{{cite web}}: CS1 maint: archived copy as title (link) JTWC's ATCR on the 1975 typhoon season
  5. ^ http://www.hnqx.cn/xqhy/xq_view.jsp?id=6814 Pan Jiazheng, the progress of the 1975 flood Archived March 13, 2007, at the Wayback Machine
  6. ^ Monsoons Over China by Ding Yihui, Springer 1994 edition (December 31, 1993), page 229.
  7. ^ "河南省气象局 纪念"75·8"学术研讨会专题". Archived from the original on 2007-03-13. Retrieved 2006-06-01.
  8. ^ NOAA
  9. ^ MDR
  10. ^ Climatological Center, Meteorological Development Bureau (2011). Tropical cyclones in Thailand: Historical data 1951–2010 (PDF) (Report). Thai Meteorological Department. Archived from the original (PDF) on March 3, 2016. Retrieved 5 October 2020.
  11. ^ Sirajur Rahman Khan; Michiel Damen. "Cyclone Hazard in Bangladesh". pp. 1–17.
  12. ^ a b c Joint Typhoon Warning Center (1976). "Super Typhoon Nina (04W) Preliminary Report" (PDF). Naval Meteorology and Oceanography Command. Archived from the original (PDF) on June 7, 2011. Retrieved July 19, 2010.
  13. ^ Staff Writer (August 4, 1975). "Typhoon batters Taiwan". The Montreal Gazette. p. 2. Retrieved July 19, 2010.
  14. ^ 台灣全區總雨量 (in Chinese). Chinese Weather Bureau. 1975. Retrieved July 19, 2010.
  15. ^ "Typhoon Kills 12 In Taiwan". The Modesto Bee. Associated Press. August 4, 1975. p. 83. Retrieved July 19, 2010.
  16. ^ United Press International (August 4, 1975). "Typhoon Nina Batters Taiwan With Rain, Wind". Sarasota Herald-Tribune. p. 5. Retrieved July 19, 2010.
  17. ^ 758大暴雨 (in Chinese). 华东师范大学. 2010. Archived from the original on July 7, 2011. Retrieved July 19, 2010.
  18. ^ Anderson-Berry 5-1 paper
  19. ^ "World Meteorological Organization's World Weather & Climate Extremes Archive". 21 June 2023.
[edit]
Wikimedia Commons has media related to Typhoon Nina (1975).
Retrieved from "https://en.wikipedia.org/w/index.php?title=Typhoon_Nina_(1975)&oldid=1335785257"