Shoreline Energy and Sea Level Dynamics in Lower Chesapeake Bay: History and Patterns

Varnell, Lyle M.

doi:10.1007/s12237-013-9672-6

Cited by 2 publications

(3 citation statements)

References 29 publications

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“…The variability of the local physical condition is likely to relate to the change of the large‐scale climate pattern. There is growing evidence that climate forcing plays a role in recent changes in the Chesapeake Bay [e.g., Najjar et al ., ; Scully , ; Varnell , ]. We hypothesize that the physical condition of the Bay is highly controlled by the large‐scale climate variation.…”

Section: Discussionmentioning

confidence: 99%

“…Varnell [] studied the long‐term (1948–2010) wind in the Chesapeake Bay, based on hourly wind velocity data collected at Norfolk International Airport. A noted decreasing trend of southeasterly and southerly wind since 1948 is observed.…”

Section: Discussionmentioning

confidence: 99%

“…Southerly wind hours decreased from 1948 to year 2000 and increased from 2000 to 2008. Southeasterly wind decreased from 1948 to 2010, while southwesterly wind has no significant trend [ Varnell , ]. A slight increase of bay stratification in June is evident [ Murphy et al ., ].…”

Section: Discussionmentioning

confidence: 99%

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Decoupling the influence of biological and physical processes on the dissolved oxygen in the Chesapeake Bay

Shen

2015

JGR Oceans

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It is instructive and essential to decouple the effects of biological and physical processes on the dissolved oxygen condition, in order to understand their contribution to the interannual variability of hypoxia in Chesapeake Bay since the 1980s. A conceptual bottom DO budget model is applied, using the vertical exchange time scale (VET) to quantify the physical condition and net oxygen consumption rate to quantify biological activities. By combining observed DO data and modeled VET values along the main stem of the Chesapeake Bay, the monthly net bottom DO consumption rate was estimated for 1985-2012. The DO budget model results show that the interannual variations of physical conditions accounts for 88.8% of the interannual variations of observed DO. The high similarity between the VET spatial pattern and the observed DO suggests that physical processes play a key role in regulating the DO condition. Model results also show that long-term VET has a slight increase in summer, but no statistically significant trend is found. Correlations among southerly wind strength, North Atlantic Oscillation index, and VET demonstrate that the physical condition in the Chesapeake Bay is highly controlled by the large-scale climate variation. The relationship is most significant during the summer, when the southerly wind dominates throughout the Chesapeake Bay. The seasonal pattern of the averaged net bottom DO consumption rate (B

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Decoupling the influence of biological and physical processes on the dissolved oxygen in the Chesapeake Bay

Shen

2015

JGR Oceans

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Effects of sea level rise on hydrology: case study in a typical mid-Atlantic coastal watershed

Wang

Taghadomi

et al. 2017

Journal of Water and Climate Change

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Sea level rise (SLR) can negatively affect the hydrology of coastal watersheds. However, the relevant information is incomplete and insufficient in existing literature. The objective of this study is to present a modeling approach to predict long-term effects of SLR on changes of flood peak, flood stage, and groundwater table with an assumption that the historical climate would reoccur in the future. The study was conducted for a typical coastal watershed in southeast USA. The results indicate that sea level had been rising at a rate of 4.21 mm yr−1 from 1948 to 1982 but at a faster rate of 5.16 mm yr−1 from 1983 to 2013. At such SLR rates and by 2113, the groundwater table beneath the eastern part of the watershed would be raised by 0.10 to 0.29 m, while the annual mean peak discharge and flood stage at the watershed outlet would be increased by 13.84 m3 s−1 (from 3.63 to 17.47 m3 s−1) and 0.92 m (from zero to 0.92 m), respectively. The other parts of the watershed would be relatively less affected by SLR. For coastal watersheds, SLR will probably raise the groundwater table, and increase the magnitude and occurrence of peak discharge and flood stage.

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Shoreline Energy and Sea Level Dynamics in Lower Chesapeake Bay: History and Patterns

Cited by 2 publications

References 29 publications

Decoupling the influence of biological and physical processes on the dissolved oxygen in the Chesapeake Bay

Decoupling the influence of biological and physical processes on the dissolved oxygen in the Chesapeake Bay

Effects of sea level rise on hydrology: case study in a typical mid-Atlantic coastal watershed

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