Effects of tidal flooding on estuarine biogeochemistry: Quantifying flood-driven nitrogen inputs in an urban, lower Chesapeake Bay sub-tributary

Macías-Tapia, Alfonso; Mulholland, Margaret R.; Selden, Corday; Loftis, Jon Derek; Bernhardt, Peter

doi:10.1016/j.watres.2021.117329

Cited by 14 publications

(21 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These ENT concentrations are comparable to the concentrations reported by Macías‐Tapia et al. (2021) in Norfolk, VA in 2017, when 95% of the ENT samples exceeded the single sample maximum threshold concentration and ENT concentrations ranged from 30 to >24,000 MPN 100 mL −1 .…”

Section: Resultssupporting

confidence: 87%

“…However, the small size of the tidal floods we observed prevents us from concluding whether more extensive floods are associated with higher or lower ENT concentrations. Additionally, while our results demonstrate that tidal floods are associated with the problematic water quality impacts shown in previous studies (Hart et al, 2020;Macías-Tapia et al, 2021McKenzie et al, 2021;Price et al, 2021), similar studies as the one presented here should be conducted across more locations to better define the site-specific effects related to stormwater infrastructure GeoHealth 10.1029/2024GH001020 and land use. We suggest that future work incorporate sampling across multiple seasons, communities, and flood extents to better understand the prevalence of poor water quality from chronic stormwater network inundation and tidal flooding.…”

Section: Discussionsupporting

confidence: 76%

See 1 more Smart Citation

Fecal Bacteria Contamination of Floodwaters and a Coastal Waterway From Tidally‐Driven Stormwater Network Inundation

Carr,

Gold,

Harris

et al. 2024

GeoHealth

View full text Add to dashboard Cite

Inundation of coastal stormwater networks by tides is widespread due to sea‐level rise (SLR). The water quality risks posed by tidal water rising up through stormwater infrastructure (pipes and catch basins), out onto roadways, and back out to receiving water bodies is poorly understood but may be substantial given that stormwater networks are a known source of fecal contamination. In this study, we (a) documented temporal variation in concentrations of Enterococcus spp. (ENT), the fecal indicator bacteria standard for marine waters, in a coastal waterway over a 2‐month period and more intensively during two perigean spring tide periods, (b) measured ENT concentrations in roadway floodwaters during tidal floods, and (c) explained variation in ENT concentrations as a function of tidal inundation, antecedent rainfall, and stormwater infrastructure using a pipe network inundation model and robust linear mixed effect models. We find that ENT concentrations in the receiving waterway vary as a function of tidal stage and antecedent rainfall, but also site‐specific characteristics of the stormwater network that drains to the waterway. Tidal variables significantly explain measured ENT variance in the waterway, however, runoff drove higher ENT concentrations in the receiving waterway. Samples of floodwaters on roadways during both perigean spring tide events were limited, but all samples exceeded the threshold for safe public use of recreational waters. These results indicate that inundation of stormwater networks by tides could pose public health hazards in receiving water bodies and on roadways, which will likely be exacerbated in the future due to continued SLR.

show abstract

Section: Resultssupporting

confidence: 87%

Section: Discussionsupporting

confidence: 76%

Fecal Bacteria Contamination of Floodwaters and a Coastal Waterway From Tidally‐Driven Stormwater Network Inundation

Carr,

Gold,

Harris

et al. 2024

GeoHealth

View full text Add to dashboard Cite

show abstract

“…This type of flood event is often known as a “sunny day flood” without any storm; in this case (November 2017) the flood occurred during the so‐called fall “King Tide” period when seasonal tides are higher than normal (Ezer, 2020a). These annual King Tide events are now used as citizen science experiments when hundreds of volunteers collect data to help map street floods, calibrate inundation models and sample floodwater for water quality analysis (Hutton & Allen, 2021; Loftis et al., 2019; Macias‐Tapia et al., 2021).…”

Section: Resultsmentioning

confidence: 99%

“…This study area (including the Hampton Roads region surrounding Norfolk) was chosen as demonstration because the increase in flooding at this region already led to various initiatives to address public awareness and plan mitigation and adaptation strategies. These activities include for example, citizen science projects of monitoring street flooding and associated water quality issues (Hutton & Allen, 2021; Macias‐Tapia et al., 2021), engagement with local stakeholders (John & Yusuf, 2019; Yusuf et al., 2018) and development of sensor network and flood prediction systems (Loftis et al., 2019).…”

Section: Summary and Discussionmentioning

confidence: 99%

A Demonstration of a Simple Methodology of Flood Prediction for a Coastal City Under Threat of Sea Level Rise: The Case of Norfolk, VA, USA

Ezer

2022

Earth's Future

View full text Add to dashboard Cite

Many coastal cities around the world are at risk of increased flooding due to sea level rise (SLR), so here a simple flood prediction method is demonstrated for one city at risk, Norfolk, VA, on the U.S. East Coast. The probability of future flooding is estimated by extending observed hourly water level for 1927–2021 into hourly estimates until 2100. Unlike most other flood prediction methods, the approach here does not use any predetermined probability distribution function of extreme events, and instead a random sampling of past data represents tides and storm surges. The probability of flooding for 3 different flood levels and 3 different SLR projections are calculated, and the results are consistent with more sophisticated methods. Under intermediate‐low SLR projection an empirical formula is found to estimate the lower bound of flooding time, showing that water level that exceeds the high tide (Mean Higher High Water, MHHW) occurred ∼0.3% of the time in the 1960s, increased to ∼6% in 2021, and projected to occur 100% of the time by ∼2080. Under intermediate SLR projection, 1000 simulations of the probability of maximum annual water level were conducted, showing that storm surges may reach ∼2 m over MHHW by 2050 and ∼3 m over MHHW by 2100; in comparison, storm surges in Norfolk over the past 90 years reached 1.6 m only once. The method derived here could be adopted to other locations and help planning mitigations and adaptation strategies for cities at risk.

show abstract

“…Sea level rise has increased the frequency of tidal flood events without heavy rainfall in many coastal areas worldwide [19]. The high and low tides could carry organic and inorganic materials [20]. There was water pollution in the river of Semarang [21], material from the land carried away by the tidal flood would affect the quality of water bodies.…”

Section: Physical Impacts (Environment and Infrastructure)mentioning

confidence: 99%

Assessing Environmental Physics: Tidal Flood Impact with Multidiscipline Approach (Case Study Coastal Cities Semarang Indonesia)

Hakim¹,

Kustiyanto²,

Cholisoh³

et al. 2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Tidal floods and land subsidence often occur in the coastal areas of Semarang, Central Java. The coastal area of Semarang has an essential role in the economy of the city of Semarang, especially the Port of Tanjung Emas. Research with a multidisciplinary approach is expected to obtain conclusions on technical and non-technical problems to prepare mitigation measures and reduce the risk of tidal flooding. This study aims to determine and analyze the impact of tidal flooding in the city of Semarang using a multidisciplinary approach. The data used for the analysis came from literature studies and field observations. This research method is descriptive analysis. The results showed that the tidal flood caused damage to infrastructure, houses, and other public facilities. This damage makes the infrastructure not function optimally. Other impacts the community feels are disruption of economic activities, lower productivity, and increased maintenance costs, thereby reducing overall community income. Therefore, tidal flood prevention is needed from all stakeholders, both individually and collectively.

show abstract

Effects of tidal flooding on estuarine biogeochemistry: Quantifying flood-driven nitrogen inputs in an urban, lower Chesapeake Bay sub-tributary

Cited by 14 publications

References 51 publications

Fecal Bacteria Contamination of Floodwaters and a Coastal Waterway From Tidally‐Driven Stormwater Network Inundation

Fecal Bacteria Contamination of Floodwaters and a Coastal Waterway From Tidally‐Driven Stormwater Network Inundation

A Demonstration of a Simple Methodology of Flood Prediction for a Coastal City Under Threat of Sea Level Rise: The Case of Norfolk, VA, USA

Assessing Environmental Physics: Tidal Flood Impact with Multidiscipline Approach (Case Study Coastal Cities Semarang Indonesia)

Contact Info

Product

Resources

About