Land subsidence and relative sea-level rise in the southern Chesapeake Bay region

Assessment of groundwater availability in the Northern Atlantic Coastal Plain aquifer system From Long Island, New York, to North Carolina

“…Konikow (2013) Storage release from the confining unit sediments creates the potential for increased risk of land subsidence. Pope and Burbey (2004) determined that storage release from the finegrained sediments that compose the confining units in southern Virginia in response to large groundwater withdrawals has resulted in compaction of these sediments, explaining in part the increased rates of land subsidence and anomalously high rates of sea-level rise observed in the lower Chesapeake Bay area (Eggleston and Pope, 2013).…”

Vertical datum conversion process for the inland and coastal gage network located in the New England, Mid-Atlantic, and South Atlantic-Gulf hydrologic regions

“…Although many benchmarks have deep rod construction or corrosion resistant metal disks set in a bedrock outcrop that prohibits excessive movement (FGCS, 1984; M. Schenewerk, National Geodetic Survey, oral commun., 2016), a localized disturbance such as land subsidence is possible. For example, subsidence has been particularly notable since the 1940s in the southern Chesapeake Bay region at rates of 0.004 to 0.016 foot per year (Eggleston and Pope, 2013). In addition to sea-level rise, aquifer compaction from groundwater pumping in the southern Chesapeake Bay region has indicated movement as illustrated in figure 8 (Eggleston and Pope, 2013).…”

“…For example, subsidence has been particularly notable since the 1940s in the southern Chesapeake Bay region at rates of 0.004 to 0.016 foot per year (Eggleston and Pope, 2013). In addition to sea-level rise, aquifer compaction from groundwater pumping in the southern Chesapeake Bay region has indicated movement as illustrated in figure 8 (Eggleston and Pope, 2013).…”

Water Intrusion in the Chesapeake Bay Region: Is It Caused by Climate-Induced Sea Level Rise?

“…An important component of relative sea-level rise, land subsidence, could be prevented or reduced in the future if groundwater pumping strategies were changed [27]. Future land subsidence caused by aquifer-system compaction can be reduced or stopped by changing water-use practices.…”

“…Future land subsidence caused by aquifer-system compaction can be reduced or stopped by changing water-use practices. Because aquifer-system compaction is the primary cause of land subsidence in the Chesapeake Bay region, reducing compaction can reduce land subsidence and associated flood risks [28]. In the Houston-Galveston area and the Santa Clara Valley, resource managers have successfully decreased land subsidence by moving groundwater pumping away from the coast, reducing groundwater withdrawal rates, and increasing aquifer recharge [29].…”