Dramatic hydrodynamic and sedimentary responses in Galveston Bay and adjacent inner shelf to Hurricane Harvey

Du, Jiabi; Dellapenna, Timothy M.; Clay, Jacinta M.

doi:10.1016/j.scitotenv.2018.10.403

Cited by 78 publications

(72 citation statements)

References 63 publications

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“…Tropical cyclones are regular events that threaten coastal ecosystems and inland environments. Such environmental disturbances harm or benefit natural systems and biological life by profoundly altering biogeochemical processes, sediment distributions, and biological diversity (Sousa, 1984;Du et al, 2019b;Osburn et al, 2019;Steichen et al, 2020). As affected regions are home to almost ∼40% of the global population, cyclone activity, and impact are invariably linked to financial losses, loss of ecosystem services, dispersal of harmful chemicals from industries, or human fatalities and require proper preparation and analysis.…”

Section: Discussionmentioning

confidence: 99%

Hurricanes Accelerate Dissolved Organic Carbon Cycling in Coastal Ecosystems

et al. 2020

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Extreme weather events such as tropical storms and hurricanes deliver large amounts of freshwater (stormwater and river discharge) and associated dissolved organic carbon (DOC) to estuaries and the coastal ocean, affecting water quality, and carbon budgets. Hurricane Harvey produced an unprecedented 1000-year flood event in 2017 that inundated the heavily urbanized and industrialized Houston/Galveston region (TX, United States). Within a week, storm-associated floodwater delivered 87 ± 18 Gg of terrigenous dissolved organic carbon (tDOC) to Galveston Bay and the Gulf of Mexico continental shelves. In situ decay constants of 8. 75-28.33 year −1 resulted in the biomineralization of ∼70% of tDOC within 1 month of discharge from the flood plain. The high removal efficiency of tDOC was linked to a diverse microbial community capable of degrading a wide repertoire of dissolved organic matter (DOM), and suggested hurricane-induced flood events affect net CO 2 exchange and nutrient budgets in estuarine watersheds and coastal seas.

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Section: Discussionmentioning

confidence: 99%

Hurricanes Accelerate Dissolved Organic Carbon Cycling in Coastal Ecosystems

et al. 2020

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“…Severer consequences tend to be linked to events aligning extraordinary intensity and long duration (multi‐day), i.e. persistent precipitation extremes (PPE: Chen and Zhai, ; Ramos et al., ; Du et al., ). A case in point is the deadly event which struck Pakistan during late July in 2010, claiming a death toll of nearly 3,000 (Hong et al., ).…”

Section: Introductionmentioning

confidence: 99%

Persistent precipitation extremes in the Yangtze River Valley prolonged by opportune configuration among atmospheric teleconnections

Chen

Zhai

Liao

et al. 2019

Quart J Royal Meteoro Soc

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This study investigates whether and how three synoptic-scale teleconnections, i.e. East Asia/Pacific teleconnection (EAP), Silk-Road teleconnection (SR) and Eurasia teleconnection (EU), induce persistent precipitation extremes (PPEs) in the Yangtze River Valley. Results show that only the EAP teleconnection has the potential of independently incurring PPEs; while the other two teleconnections' influences on PPEs need to be exerted via their liaison with the EAP pattern. Cases are accordingly grouped into two subsets, i.e. single EAP-PPEs and three teleconnection-PPEs. In both groups, the EAP teleconnection evolves following a similar pathway that poleward energy dispersion dynamically links a westward-extended subtropical high, a deepened midlatitude trough and the Okhotsk blocking. EAP-induced circulation anomalies enhance low-level convergences and upper-level divergences, convey exceptionally abundant moisture, and hence give birth to a quasi-stationary front leading to PPEs in the Yangtze River Valley. Despite similarities, PPEs last noticeably longer in the three-teleconnection context. The EU teleconnection-related downstream energy dispersion at higher latitudes favours both earlier establishment and latter decay of the Okhotsk blocking. Constructed meridional flows at mid-high latitudes continuously steer migratory disturbances southeastward into the EAP trough. The SR plays a bigger role during the latter half of PPE life span (3 days after onset) via stimulating new cyclonic disturbances that largely overlap with the EAP trough spatially. Moreover, EU-and SR-excited disturbances could effectively extract baroclinic and barotropic energy from local mean flows to replenish components of the EAP tripole pattern, which therefore survives longer and prolongs PPEs by several days. K E Y W O R D S monsoonal stationary front, persistent precipitation extremes, Rossby wave energy dispersion and conversion, synoptic-scale atmospheric teleconnections, thermodynamic-dynamic mechanisms Q J R Meteorol Soc. 2019;145:2603-2626. wileyonlinelibrary.com/journal/qj © 2019 Royal Meteorological Society 2603 2604 CHEN ET AL.

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“…As the severity and frequency of extreme storm events increases with global climate change, it is increasingly important to understand how these events impact ecological functioning in marine ecosystems (Wetz and Paerl 2008;Du et al 2019). However, characterizing the effects 15 of extreme storm events, such as typhoons, on coastal ecosystems is a complicated task, due both to forecast unpredictability, which makes sampling before and after events challenging, and the dangerous conditions that accompany storms (Chen et al 2018).…”

Section: Discussionmentioning

confidence: 99%

Extreme storms cause rapid, context-dependent shifts in nearshore subtropical bacterial communities

Ares

et al. 2019

Preprint

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Climate change scenarios predict tropical cyclones will increase in both frequency and intensity, 15which will escalate the amount of terrestrial runoff entering coastal ecosystems. Prokaryotes are known to respond quickly to environmental change, making them potentially valuable earlywarning bioindicators, but relatively little is known about their short-term responses during extreme storms in nearshore subtropical regions. In this study, we combine field observations and mesocosm experiments to assess prokaryotic community dynamics and changes in 20 physicochemical properties during early-and late-season tropical cyclones affecting Okinawa, Japan. Storms caused large and fast influxes of freshwater and terrestrial sediment-locally known as red soil pollution-and caused moderate increases of macronutrients-especially SiO2 and PO4. Rather than shifts in marine bacteria, we primarily detected influxes of common soil-derived bacteria, and putative coral and human pathogens that may derive from other 25 sources; mesocosm experiments confirmed that soil input did not differentially affect marine bacteria. The storm effects on bacterial communities were short-lived and baseline assemblages were quickly recovered following disturbances. Early-and late-season storms caused different physicochemical and bacterial community changes. Our results demonstrate rapid and context-dependent shifts in prokaryotic communities due to extreme storm events in a 30 subtropical coastal ecosystem.

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Dramatic hydrodynamic and sedimentary responses in Galveston Bay and adjacent inner shelf to Hurricane Harvey

Cited by 78 publications

References 63 publications

Hurricanes Accelerate Dissolved Organic Carbon Cycling in Coastal Ecosystems

Hurricanes Accelerate Dissolved Organic Carbon Cycling in Coastal Ecosystems

Persistent precipitation extremes in the Yangtze River Valley prolonged by opportune configuration among atmospheric teleconnections

Extreme storms cause rapid, context-dependent shifts in nearshore subtropical bacterial communities

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