Rainfall-enhanced blooming in typhoon wakes

Lin, Yu‐Chun; Oey, Lie Yauw

doi:10.1038/srep31310

Cited by 29 publications

(34 citation statements)

References 55 publications

(117 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The high chl-a concentration anomalies in the first and the second post-storm weeks ( Figure 3D) agree with previous studies reporting blooms lasting about 2-3 weeks after the TC passage (Babin et al, 2004;Hanshaw et al, 2008;Parker et al, 2017). The first chl-a peak immediately after the passage agrees with the findings of Lin and Oey (2016) and Menkes et al (2016). The latter observed weaker chl-a responses (i.e., 60% of the responses range between -0.02 and 0.02 mg m −3 ) than the ones in our study at scale 1 (i.e., 60% of the responses range between -0.01 and 0.04 mg m −3 ) ( Figure 4C).…”

Section: Chl-a Dynamicssupporting

confidence: 92%

The impact of hurricanes on the oceanographic conditions in the Exclusive Economic Zone of Cuba

Avila-Alonso

Baetens

Cárdenas

et al. 2019

Remote Sensing of Environment

View full text Add to dashboard Cite

In this work, we analysed the satellite-based responses of sea surface temperature (SST) and chlorophylla (chl-a) concentration in the waters of the Exclusive Economic Zone (EEZ) of Cuba to hurricanes that crossed the EEZ between 1998 and 2016. We considered two spatial scales to capture the spatially heterogeneous nature of the effects of hurricanes. A first more fine-grained one where we considered 120 km radius disks centered at every consecutive hurricane position within the EEZ (scale 1) and a second more coarse grained one enclosing the entire EEZ (scale 2). We conclude that the hurricanes induced a weak cooling since 75 and 85% of the SST anomalies at scale 1 and 2, respectively, were smaller than -1 • C. The cooling was mainly caused by the wind, inducing mixing and/or upwelling of subsurface cool waters. The maximum chl-a responses were recorded in the first and second post-storm weeks, with 60% ranging between -0.01 and 0.04 mg m −3 at scale 1, and between -0.07 and 0.02 mg m −3 at scale 2. During those post-storm weeks SST and chl-a anomalies were 18 and 44% higher at scale 1 than at scale 2, respectively. We argue that the transport of chl-a from the deep chlorophyll maximum and/or the rich coastal waters are the dominant mechanisms determining the post-storm chl-a response in the EEZ. We also found that the magnitude of the Island Mass Effect in the EEZ after the passage of the hurricanes was 89% higher than before its passage.

show abstract

Section: Chl-a Dynamicssupporting

confidence: 92%

The impact of hurricanes on the oceanographic conditions in the Exclusive Economic Zone of Cuba

Avila-Alonso

Baetens

Cárdenas

et al. 2019

Remote Sensing of Environment

View full text Add to dashboard Cite

show abstract

“…The steering flow trend is shown in Figure a (vectors); it is west‐northwesterly in the tropical Pacific east of 120°E from 0 to 20°N. As the mean steering flow is anticyclonic over the western North Pacific (Figure S3) [ Chen et al ., ; Lin and Oey , ], vectors in Figure a indicate a weakening trend of the steering flow. As a further check, we calculate the reduction in the steering speed averaged over 8–26°N and 120–160°E at grid points where the trend is significant ( p ≤ 0.05); the value is ≈−0.062 m s −1 per decade, in excellent agreement with the estimate by Oey and Chou [] by using direct TC‐track observations.…”

Section: Resultsmentioning

confidence: 99%

Long‐term trends of typhoon‐induced rainfall over Taiwan: In situ evidence of poleward shift of typhoons in western North Pacific in recent decades

et al. 2017

View full text Add to dashboard Cite

A significant poleward shift of tropical cyclones (TCs or typhoons) and TC‐induced storm surge in the western North Pacific has occurred in recent decades. Here we use 64 year rainfall observations around Taiwan to provide an independent evidence of the shift. We show that, due to the island's unique location relative to typhoon tracks, TC‐induced rainfall trends are significantly rising west and north of the island but are insignificant east and southeast, caused by a preference in recent decades for TCs to veer more poleward. Analyses of large‐scale fields indicate that the TCs' poleward shift is caused by the weakening of the steering flow and western North Pacific subtropical high, which in turn is due to tropic‐subtropical Indo‐Pacific warming and a weakened monsoon, consistent with the expansion of the tropics due to climate change.

show abstract

“…[]. The model has been used to study ocean and typhoon interactions over the South China Sea [e.g., Sun et al ., ], as well as in studies of typhoon‐induced chlorophyll blooming [ Huang and Oey , ; Lin and Oey , ].…”

Section: Data and Numerical Experimentsmentioning

confidence: 94%

“…Details about the model physics are referred to Oey et al [2013]. The model has been used to study ocean and typhoon interactions over the South China Sea [e.g., Sun et al, 2015], as well as in studies of typhoon-induced chlorophyll blooming Lin and Oey, 2016].…”

Section: Data and Numerical Experimentsmentioning

confidence: 99%

“…The influences of tropical cyclones or typhoons/hurricanes on ecosystem over continental shelves and open oceans have been documented worldwide [e.g., Chen et al, 2003;Lin, 2012;Hung et al, 2013;Foltz et al, 2015;Huang and Oey, 2015;Lin and Oey, 2016]. After typhoon passages, increases of sea surface chlorophyll-a (Chl-a) concentration are often found.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Impacts of pre‐existing ocean cyclonic circulation on sea surface chlorophyll‐a concentrations off northeastern Taiwan following episodic typhoon passages

Yao

Oey

et al. 2017

JGR Oceans

View full text Add to dashboard Cite

Off northeastern Taiwan, enhancement of sea surface chlorophyll‐a (Chl‐a) concentration is frequently found after typhoon passages. From 1998 to 2013, 46 typhoon events are analyzed to examine the variations in Chl‐a concentration from satellite ocean color data. On average, Chl‐a concentration increased by 38% after a typhoon passage. Noticeably, four remarkable Chl‐a increases after typhoons coincide with pre‐existing oceanic cyclones in the study area. The Chl‐a increase is significantly anticorrelated (p < 0.01) with relative SSH, defined as the difference of SSH in the study area and in the surrounding area. To assess the impact of pre‐existing cyclones on the upper ocean response to typhoons, we conduct a series of numerical experiments to simulate the oceanic response to Typhoon Kaemi (2006) with or without a pre‐existing oceanic cyclone, and with or without strong typhoon winds. The results show that the experiment with a pre‐existing oceanic cyclone produces the largest upwelling due to cyclone intensification, mainly induced by the positive wind stress curl dipole northeast of Taiwan.

show abstract

Rainfall-enhanced blooming in typhoon wakes

Cited by 29 publications

References 55 publications

The impact of hurricanes on the oceanographic conditions in the Exclusive Economic Zone of Cuba

The impact of hurricanes on the oceanographic conditions in the Exclusive Economic Zone of Cuba

Long‐term trends of typhoon‐induced rainfall over Taiwan: In situ evidence of poleward shift of typhoons in western North Pacific in recent decades

Impacts of pre‐existing ocean cyclonic circulation on sea surface chlorophyll‐a concentrations off northeastern Taiwan following episodic typhoon passages

Contact Info

Product

Resources

About