Outputs (73)

Diatoms of the intertidal environments of Willapa Bay, Washington, USA as a sea-level indicator (2021)
Journal Article
Hong, I., Horton, B. P., Hawkes, A. D., O'Donnell, R. J., Padgett, J. S., Dura, T., & Engelhart, S. E. (2021). Diatoms of the intertidal environments of Willapa Bay, Washington, USA as a sea-level indicator. Marine Micropaleontology, 167, Article 102033. https://doi.org/10.1016/j.marmicro.2021.102033

An understanding of the modern relationship between diatom species and elevation is a prerequisite for using fossil diatoms to reconstruct relative sea level (RSL). We described modern diatom distributions from seven transects covering unvegetated su... Read More about Diatoms of the intertidal environments of Willapa Bay, Washington, USA as a sea-level indicator.

A maximum rupture model for the central and southern Cascadia subduction zone—reassessing ages for coastal evidence of megathrust earthquakes and tsunamis (2021)
Journal Article
Nelson, A. R., DuRoss, C. B., Witter, R. C., Kelsey, H. M., Engelhart, S. E., Mahan, S. A., …Padgett, J. S. (2021). A maximum rupture model for the central and southern Cascadia subduction zone—reassessing ages for coastal evidence of megathrust earthquakes and tsunamis. Quaternary Science Reviews, 261, https://doi.org/10.1016/j.quascirev.2021.106922

A new history of great earthquakes (and their tsunamis) for the central and southern Cascadia subduction zone shows more frequent (17 in the past 6700 yr) megathrust ruptures than previous coastal chronologies. The history is based on along-strike co... Read More about A maximum rupture model for the central and southern Cascadia subduction zone—reassessing ages for coastal evidence of megathrust earthquakes and tsunamis.

Timing and amount of southern Cascadia earthquake subsidence over the past 1700 years at northern Humboldt Bay, California, USA (2021)
Journal Article
Padgett, J., Engelhart, S., Kelsey, H., Witter, R., Cahill, N., & Hemphill-Haley, E. (2021). Timing and amount of southern Cascadia earthquake subsidence over the past 1700 years at northern Humboldt Bay, California, USA. GSA Bulletin, 133(9-10), 2137-2156. https://doi.org/10.1130/b35701.1

Stratigraphic, lithologic, foraminiferal, and radiocarbon analyses indicate that at least four abrupt mud-over-peat contacts are recorded across three sites (Jacoby Creek, McDaniel Creek, and Mad River Slough) in northern Humboldt Bay, California, US... Read More about Timing and amount of southern Cascadia earthquake subsidence over the past 1700 years at northern Humboldt Bay, California, USA.

Toward an integrative geological and geophysical view of Cascadia subduction zone earthquakes (2021)
Journal Article
Walton, M., Staisch, L., Dura, T., Pearl, J., Sherrod, B., Gomberg, J., …Wirth, E. (2021). Toward an integrative geological and geophysical view of Cascadia subduction zone earthquakes. Annual Review of Earth and Planetary Sciences, 49, 367-398. https://doi.org/10.1146/annurev-earth-071620-065605

The Cascadia subduction zone (CSZ) is an exceptional geologic environment for recording evidence of land-level changes, tsunamis, and ground motion that reveals at least 19 great megathrust earthquakes over the past 10 kyr. Such earthquakes are among... Read More about Toward an integrative geological and geophysical view of Cascadia subduction zone earthquakes.

Uncertainties of Glacial Isostatic Adjustment Model Predictions in North America associated with 3D structure (2020)
Journal Article
Li, T., Wu, P., Wang, H., Steffen, H., Khan, N., Engelhart, S., …Horton, B. (2020). Uncertainties of Glacial Isostatic Adjustment Model Predictions in North America associated with 3D structure. Geophysical Research Letters, 47(10), Article e2020GL087944. https://doi.org/10.1029/2020gl087944

We quantify GIA prediction uncertainties of 250 1D and 3D glacial isostatic adjustment (GIA) models through comparisons with deglacial relative sea‐level (RSL) data from North America and rate of vertical land motion ( urn:x-wiley:00948276:media:grl6... Read More about Uncertainties of Glacial Isostatic Adjustment Model Predictions in North America associated with 3D structure.

Estimating global mean sea-level rise and its uncertainties by 2100 and 2300 from an expert survey (2020)
Journal Article
Horton, B., Khan, N., Cahill, N., Lee, J., Shaw, T., Garner, A., …Rahmstorf, S. (2020). Estimating global mean sea-level rise and its uncertainties by 2100 and 2300 from an expert survey. npj Climate and Atmospheric Science, 3, Article 18. https://doi.org/10.1038/s41612-020-0121-5

Sea-level rise projections and knowledge of their uncertainties are vital to make informed mitigation and adaptation decisions. To elicit projections from members of the scientific community regarding future global mean sea-level (GMSL) rise, we repe... Read More about Estimating global mean sea-level rise and its uncertainties by 2100 and 2300 from an expert survey.

Geospatial modeling suggests threats from stormy seas to Rhode Island's coastal septic systems (2020)
Journal Article
Cox, A., Dowling, M., Loomis, G., Engelhart, S., & Amador, J. (2020). Geospatial modeling suggests threats from stormy seas to Rhode Island's coastal septic systems. Journal of sustainable water in the built environment, 6(3), Article 04020012. https://doi.org/10.1061/jswbay.0000917

Coastal communities preparing for climate change and sea-level rise need to consider the impact large storms will have on belowground infrastructure. Although these communities often rely on on-site wastewater treatment systems (OWTSs) to treat waste... Read More about Geospatial modeling suggests threats from stormy seas to Rhode Island's coastal septic systems.

Salt-marsh foraminiferal distributions from mainland northern Georgia, USA: an assessment of their viability for sea-level studies (2020)
Journal Article
Chen, H., Shaw, T., Wang, J., Engelhart, S., Nikitina, D., Pilarczyk, J., …Horton, B. (2020). Salt-marsh foraminiferal distributions from mainland northern Georgia, USA: an assessment of their viability for sea-level studies. Open Quaternary, 6(1), 1-19. https://doi.org/10.5334/oq.80

We investigated foraminiferal distributions from two salt-marsh sites at Thunderbolt and Georgetown, in mainland northern Georgia, U.S. Atlantic coast. We analyzed modern epifaunal foraminiferal assemblages across multiple transects consisting of 54... Read More about Salt-marsh foraminiferal distributions from mainland northern Georgia, USA: an assessment of their viability for sea-level studies.

Organic Pollutants, Heavy Metals and Toxicity in Oil Spill impacted Salt Marsh Sediment Cores, Staten Island, New York City, USA (2020)
Journal Article
Vane, C., Kim, A., Moss-Hayes, V., Turner, G., Mills, K., Chenery, S., …Brain, M. (2020). Organic Pollutants, Heavy Metals and Toxicity in Oil Spill impacted Salt Marsh Sediment Cores, Staten Island, New York City, USA. Marine Pollution Bulletin, 151, Article 110721. https://doi.org/10.1016/j.marpolbul.2019.110721

Sediment cores from Staten Island's salt marsh contain multiple historical oil spill events that impact ecological health. Microtox solid phase bioassay indicated moderate to high toxicity. Multiple spikes of TPH (6524 to 9586 mg/kg) and Σ16 PAH (15.... Read More about Organic Pollutants, Heavy Metals and Toxicity in Oil Spill impacted Salt Marsh Sediment Cores, Staten Island, New York City, USA.

Identifying the Greatest Earthquakes of the Past 2000 Years at the Nehalem River Estuary, Northern Oregon Coast, USA (2020)
Journal Article
Nelson, A., Hawkes, A., Sawai, Y., Engelhart, S., Witter, R., Grant-Walter, W., …Horton, B. (2020). Identifying the Greatest Earthquakes of the Past 2000 Years at the Nehalem River Estuary, Northern Oregon Coast, USA. Open Quaternary, 6(2), 1-30. https://doi.org/10.5334/oq.70

We infer a history of three great megathrust earthquakes during the past 2000 years at the Nehalem River estuary based on the lateral extent of sharp (≤3 mm) peat-mud stratigraphic contacts in cores and outcrops, coseismic subsidence as interpreted f... Read More about Identifying the Greatest Earthquakes of the Past 2000 Years at the Nehalem River Estuary, Northern Oregon Coast, USA.