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首页> 外文期刊>Journal of Geophysical Research, C. Oceans: JGR >Examining the Impact of Tropical Cyclones on Air-Sea CO2 Exchanges in the Bay of Bengal Based on Satellite Data and In Situ Observations
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Examining the Impact of Tropical Cyclones on Air-Sea CO2 Exchanges in the Bay of Bengal Based on Satellite Data and In Situ Observations

机译：基于卫星数据及原因观测，研究热带气旋对孟加拉湾的海运CO2交流的影响

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摘要

The impact of tropical cyclones (TCs) on the CO2 partial pressure at the sea surface (pCO(2sea)) and air-sea CO2 flux (F-CO2) in the Bay of Bengal (BoB) was quantified based on satellite data and in situ observations between November 2013 and January 2017. The in situ observations were made at the BoB Ocean Acidification mooring buoy. A weak time-mean net source of 55.78 +/- 11.16 mmol CO2 m(-2) year(-1) at the BoB Ocean Acidification site was estimated during this period. A wide range in increases of pCO(2sea) (1.0-14.8 mu atm) induced by TCs occurred in postmonsoon (October-December), and large decreases of pCO(2sea) (-14.0 mu atm) occurred in premonsoon (March-May). Large vertical differences in the ratio of dissolved inorganic carbon (DIC) to total alkalinity (TA) in the upper layer (Delta DIC/TA) were responsible for increasing pCO(2sea) in postmonsoon. Relatively small values of Delta DIC/TA were responsible for decreasing pCO(2sea) in premonsoon. Five TCs (Hudhud, Five, Kyant, Vardah, and Roanu) were considered. Hudhud significantly enhanced CO2 efflux (18.49 +/- 3.70 mmol CO2/m(2)) in oversaturated areas due to the wind effect during the storm and wind-pump effects after the storm. Vardah insignificantly changed F-CO2 (1.22 +/- 0.24 mmol CO2/m(2)) in undersaturated areas because of the counteraction of these two effects. Roanu significantly enhanced CO2 efflux (19.08 +/- 3.82 mmol CO2/m(2)) in highly oversaturated conditions (Delta pCO(2) > 20 mu atm) since the wind effect greatly exceeded the wind-pump effects. These five TCs were estimated to account for 55 +/- 23% of the annual-mean CO2 annual efflux, suggesting that TCs have significant impacts on the carbon cycle in the BoB.
机译：基于卫星数据和在孟加拉（BOB）海湾（PCO（2SEA））和空中海洋二氧化碳通量（F-CO2）中的热带气旋（TCS）对孟加拉湾（PCO）的影响2013年11月至2017年1月期间的原因观察。在鲍勃海洋酸化系泊浮标上进行了原位观察。在此期间估计鲍勃海洋酸化现场55.78 +/- 11.16mmol Co2 m（-2）年（-1）的弱时间平均净来源。 TCS诱导的PCO（2SEA）（1.0-14.8亩ATM）的增加范围在Postmonsoon（12月至12月）中发生，并且在预防的PCO（2SEA）（2SEA）（-14.0μmatm）的大量减少（3月至5月）。上层（Delta DIC / TA）中溶解的无机碳（DIC）与总碱度（TA）的大的垂直差异负责水莫隆的PCO（2SEA）。 ΔDIC/ TA的相对较小的值负责降低预防的PCO（2SEA）。考虑了五个TCS（Hudhud，五，Kyant，Vardah和Roanu）。 Hudhud由于风暴后风暴和风力泵效应的风效应而显着增强了过饱和区域的CO 2 Efflux（18.49 +/- 3.70mmol CO2 / M（2））。由于这两种效应的抵消，Vardah在欠饱和区域中微不足道地改变了F-CO2（1.22 +/- 0.24 mmol CO2 / M（2））。罗纳鲁显着增强了CO 2 Efflux（19.08 +/- 3.82mmol Co2 / M（2）），高度过饱和条件（Delta PCO（2）> 20亩ATM），因为风效应大大超过了风泵效应。估计这五种TCS估计为年度平均二氧化碳的55 +/- 23％，这表明TCS对鲍勃中的碳循环产生了重大影响。

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  • 作者

    Ye Haijun; Sheng Jinyu; Tang Danling; Morozov Evgeny; Kalhoro Muhsan Ali; Wang Sufen; Xu Huabing;

  • 作者单位

    Chinese Acad Sci South China Sea Inst Oceanol Guangdong Key Lab Ocean Remote Sensing State Key Lab Trop Oceanog Guangzhou Guangdong Peoples R China;

    Chinese Acad Sci South China Sea Inst Oceanol Guangdong Key Lab Ocean Remote Sensing State Key Lab Trop Oceanog Guangzhou Guangdong Peoples R China;

    Chinese Acad Sci South China Sea Inst Oceanol Guangdong Key Lab Ocean Remote Sensing State Key Lab Trop Oceanog Guangzhou Guangdong Peoples R China;

    Chinese Acad Sci South China Sea Inst Oceanol Guangdong Key Lab Ocean Remote Sensing State Key Lab Trop Oceanog Guangzhou Guangdong Peoples R China;

    Chinese Acad Sci South China Sea Inst Oceanol Guangdong Key Lab Ocean Remote Sensing State Key Lab Trop Oceanog Guangzhou Guangdong Peoples R China;

    Chinese Acad Sci South China Sea Inst Oceanol Guangdong Key Lab Ocean Remote Sensing State Key Lab Trop Oceanog Guangzhou Guangdong Peoples R China;

    Chinese Acad Sci South China Sea Inst Oceanol Guangdong Key Lab Ocean Remote Sensing State Key Lab Trop Oceanog Guangzhou Guangdong Peoples R China;

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  • 正文语种 eng
  • 中图分类 地球物理学;
  • 关键词

    air-sea CO2 flux; tropical cyclone; wind-pump effects; Bay of Bengal; pCO(2);

    机译：海洋二氧化碳通量;热带气旋;风泵效应;孟加拉湾;PCO（2）;

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