Hurricane forcing on chlorophyll‐a concentration off the northeast coast of the U.S.

Davis, Amélie Y.; Yan, Xiao‐Hai

doi:10.1029/2004gl020668

Cited by 57 publications

(51 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4B). Seaward-extending chl a filaments carried by typhoon-induced eddies have been observed before (Davis & Yan 2004, Yuan et al 2004, Walker et al 2005, indicating that the typhoon often induces offshore flows. Typhoon rain, therefore, is more able to influence offshore water than normal rain discharge, which tends to be confined to the coastal shelf.…”

Section: Unique Typhoon Rainmentioning

confidence: 99%

Offshore and nearshore chlorophyll increases induced by typhoon winds and subsequent terrestrial rainwater runoff

Zheng¹,

Tang²

2007

Mar. Ecol. Prog. Ser.

212

171

View full text Add to dashboard Cite

The response of phytoplankton chlorophyll to Typhoon Damrey in the South China Sea (SCS) in September 2005 was studied by remote sensing. Chl a concentration increased in 2 areas after the typhoon: (1) An offshore bloom along Damrey's track exhibited a chl a peak (4 mg m -3 ) 5 d after the typhoon's passage. It was preceded by sea-surface cooling (-5°C), mainly on the right side of the typhoon track, and sea-level decrease (-25 cm) along the typhoon track 1 d post-typhoon. The offshore bloom was due to nutrient increase from mixing and upwelling. (2) A nearshore chl a increase succeeded typhoon rain (> 300 mm on 26 September) on Hainan Island in the northwest SCS. In the bloom region, the water was rich in suspended sediments, phytoplankton, and colored dissolved organic matter, and was entrained by an eddy. This nearshore feature may have resulted from rainwater discharge and seaward advection by a typhoon-induced current. By these 2 mechanisms, both typhoon winds and rain can enhance production of marine phytoplankton.

show abstract

Section: Unique Typhoon Rainmentioning

confidence: 99%

Offshore and nearshore chlorophyll increases induced by typhoon winds and subsequent terrestrial rainwater runoff

Zheng¹,

Tang²

2007

Mar. Ecol. Prog. Ser.

212

171

View full text Add to dashboard Cite

show abstract

“…Using remotely sensed data, several authors have demonstrated local biomass changes following the passage of storms (Babin et al 2004, Davis & Yan 2004, Fuentes-Yaco et al 2005, Son et al 2006. Storms are, therefore, of fundamental importance to the dynamics of the ocean ecosystem, and we should try to understand in detail the way in which they exert their influence, and the limitations of their effect.…”

Section: Introductionmentioning

confidence: 99%

Short-term changes in chlorophyll distribution in response to a moving storm: a modelling study

Wu¹,

Platt²,

Tang³

et al. 2007

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Using a 3-D ocean circulation model of the Labrador Sea, we investigated the immediate response, through vertical redistribution of the chlorophyll field, to a steadily moving storm. The model is forced by a prescribed wind and pressure field. The numerical experiments included a control run to analyze the horizontal and vertical structure of the chlorophyll field, and several sensitivity runs to investigate the response to changes in the storm parameters (translation speed, size and intensity) and the seasonal distribution of chlorophyll. The model results showed that after the passage of the storm, surface chlorophyll in the Labrador Sea is generally increased by vertical mixing. The largest increase occurs in autumn. In summer (control run), the surface chlorophyll concentration is 1 to 3 mg m -3 higher than the concentration before the storm in almost all the areas under the influence of the storm. In the shelf regions, however, the increase is very small. The changes in surface chlorophyll concentration are shown to be primarily controlled by the mixed-layer depth and the initial chlorophyll distribution. Nitrate brought from the deep reservoir to the mixed layer by entrainment was estimated from the model. For a typical storm in summer, 3.35 × 10 3 mol of new nitrate is added to the mixed layer for each km of storm track. Primary production rates following the introduction of new nitrate will contribute to further change in surface chlorophyll, but on a longer time scale. KEY WORDS: Moving storm · Chlorophyll · Vertical distribution · 3-D modelResale or republication not permitted without written consent of the publisher

show abstract

“…Chang et al 2008;Hung et al 2010;Chung, Gong, and Hung 2012), but such near-shore primary production increases in this study may also have resulted from seaward advection of river and rainwater discharge by typhoon-induced currents (sensu Davis and Yan 2004;Walker, Leben, and Balasubramanian 2005;Zheng and Tang 2007). In this study, satellite images taken after Typhoons Fung-wong and Haitang revealed increased chl-a concentrations' patches that coincided in shape and location with the typhoon-induced cold-water patches.…”

Section: Enhanced Chl-a Concentrationsmentioning

confidence: 51%

Typhoon-enhanced upwelling and its influence on fishing activities in the southern East China Sea

Chang

Chan²,

Huang

et al. 2014

International Journal of Remote Sensing

View full text Add to dashboard Cite

Ocean-atmosphere interactions before and after the passage of Typhoons Haitang, Fung-wong, and Morakot across the southern region of the East China Sea (ECS) were examined by assessing satellite measurements of sea surface temperature (SST) and chlorophyll-a (chl-a) concentration in conjunction with wind data. In terms of the satellite-derived data, the SST declined and chl-a concentration increased after the passage of the typhoons, and this could have resulted from the upwelling induced by typhoons via their long-duration, strong winds. According to fisheries data collected after the passing of Typhoon Morakot, the major fishing grounds of the torchlight fishery were found to have shifted northwards from the northern tip of Taiwan to the southern ECS. Moreover, the major target fish species changed from skipjack tuna (pre-typhoon) to squid (post-typhoon), signifying that the typhoon-enhanced upwelling might have caused the skipjack tuna, which typically prefer warm water, to have migrated elsewhere. In contrast, the nutrient-rich, upwelled water might have directly led to increases in chl-a concentrations and contributed the increase in local squid densities. This study suggests that typhoons can cause marked cooling of the sea surface as well as enhance upwelling that previously resulted in not only chl-a increases but also changes of local fish communities and, consequently, fishing activities.

show abstract

Hurricane forcing on chlorophyll‐a concentration off the northeast coast of the U.S.

Cited by 57 publications

References 14 publications

Offshore and nearshore chlorophyll increases induced by typhoon winds and subsequent terrestrial rainwater runoff

Offshore and nearshore chlorophyll increases induced by typhoon winds and subsequent terrestrial rainwater runoff

Short-term changes in chlorophyll distribution in response to a moving storm: a modelling study

Typhoon-enhanced upwelling and its influence on fishing activities in the southern East China Sea

Contact Info

Product

Resources

About