Search Results - "Gray, Andrew B"

Predicting Postfire Sediment Yields of Small Steep Catchments Using Airborne Lidar Differencing by Guilinger, James J., Foufoula‐Georgiou, Efi, Gray, Andrew B., Randerson, James T., Smyth, Padhraic, Barth, Nicolas C., Goulden, Michael L.

“…Predicting sediment yield from recently burned areas remains a challenge but is important for hazard and resource management as wildfire impacts increase. Here…”
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How many microplastics do you need to (sub)sample? by Cowger, Win, Markley, Laura A.T., Moore, Shelly, Gray, Andrew B., Upadhyay, Kshitij, Koelmans, Albert A.

“…Analysis of microplastics in the environment requires polymer characterization as a confirmation step for suspected microplastic particles found in a sample…”
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High nutrient loads amplify carbon cycling across California and New York coastal wetlands but with ambiguous effects on marsh integrity and sustainability by Watson, Elizabeth Burke, Rahman, Farzana I, Woolfolk, Andrea, Meyer, Robert, Maher, Nicole, Wigand, Cathleen, Gray, Andrew B

“…Eutrophic conditions in estuaries are a globally important stressor to coastal ecosystems and have been suggested as a driver of coastal salt marsh loss…”
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Emerging Sensor Platforms Allow for Seagrass Extent Mapping in a Turbid Estuary and from the Meadow to Ecosystem Scale by Krause, Johannes R., Hinojosa-Corona, Alejandro, Gray, Andrew B., Burke Watson, Elizabeth

“…Seagrass meadows are globally important habitats, protecting shorelines, providing nursery areas for fish, and sequestering carbon. However, both anthropogenic…”
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Microplastics and Trash Cleaning and Harmonization (MaTCH): Semantic Data Ingestion and Harmonization Using Artificial Intelligence by Hapich, Hannah, Cowger, Win, Gray, Andrew B.

“…With the rapid expansion of microplastic research and reliance on semantic descriptors, there is an increasing need for plastic pollution data harmonization…”
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Use of historical isoscapes to develop an estuarine nutrient baseline by Champlin, Lena K, Woolfolk, Andrea, Oczkowski, Autumn J, Rittenhouse, Audrey, Gray, Andrew B, Wasson, Kerstin, Rahman, Farzana I, Zelanko, Paula, Krupinski, Nadine B Quintana, Jeppesen, Rikke, Haskins, John, Watson, Elizabeth B

“…Coastal eutrophication is a prevalent threat to the healthy functioning of ecosystems globally. While degraded water quality can be detected by monitoring…”
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Concentration Depth Profiles of Microplastic Particles in River Flow and Implications for Surface Sampling by Cowger, Win, Gray, Andrew B, Guilinger, James J, Fong, Brandon, Waldschläger, Kryss

“…River flow is a major conveyance of microplastic (1–5000 μm) pollution from land to marine systems. However, the current approaches to monitoring and modeling…”
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Anthropogenic litter cleanups in Iowa riparian areas reveal the importance of near-stream and watershed scale land use by Cowger, Win, Gray, Andrew B., Schultz, Richard C.

“…Volunteer cleanup operations collect large datasets on anthropogenic litter that are seldom analyzed. Here we assess the influence of land use in both…”
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Quantitative assessment of visual microscopy as a tool for microplastic research: Recommendations for improving methods and reporting by Kotar, Syd, McNeish, Rae, Murphy-Hagan, Clare, Renick, Violet, Lee, Chih-Fen T., Steele, Clare, Lusher, Amy, Moore, Charles, Minor, Elizabeth, Schroeder, Joseph, Helm, Paul, Rickabaugh, Keith, De Frond, Hannah, Gesulga, Kristine, Lao, Wenjian, Munno, Keenan, Thornton Hampton, Leah M., Weisberg, Stephen B., Wong, Charles S., Amarpuri, Gaurav, Andrews, Robert C., Barnett, Steven M., Christiansen, Silke, Cowger, Win, Crampond, Kévin, Du, Fangni, Gray, Andrew B., Hankett, Jeanne, Ho, Kay, Jaeger, Julia, Lilley, Claire, Mai, Lei, Mina, Odette, Lee, Eunah, Primpke, Sebastian, Singh, Samiksha, Skovly, Joakim, Slifko, Theresa, Sukumaran, Suja, van Bavel, Bert, Van Brocklin, Jennifer, Vollnhals, Florian, Wu, Chenxi, Rochman, Chelsea M.

“…Microscopy is often the first step in microplastic analysis and is generally followed by spectroscopy to confirm material type. The value of microscopy lies in…”
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Promoting success in thin layer sediment placement: effects of sediment grain size and amendments on salt marsh plant growth and greenhouse gas exchange by Wilburn, Brittany P., Raper, Kirk, Raposa, Kenneth B., Gray, Andrew B., Mozdzer, Thomas J., Watson, Elizabeth B.

“…Thin layer sediment placement (TLP) is used to build elevation in marshes, counteracting effects of subsidence and sea level rise. However, TLP success may…”
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Effects of antecedent hydrologic conditions, time dependence, and climate cycles on the suspended sediment load of the Salinas River, California by Gray, Andrew B., Pasternack, Gregory B., Watson, Elizabeth B., Warrick, Jonathan A., Goñi, Miguel A.

“…•Use of short sampling base periods overestimated suspended sediment discharge (QSS).•Non-stationary sediment regimes must be sampled or modeled to estimate…”
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The influence of complex matrices on method performance in extracting and monitoring for microplastics by Thornton Hampton, Leah M., De Frond, Hannah, Gesulga, Kristine, Kotar, Syd, Lao, Wenjian, Matuch, Cindy, Weisberg, Stephen B., Wong, Charles S., Brander, Susanne, Christansen, Silke, Cook, Cayla R., Du, Fangni, Ghosal, Sutapa, Gray, Andrew B., Hankett, Jeanne, Helm, Paul A., Ho, Kay T., Kefela, Timnit, Lattin, Gwendolyn, Lusher, Amy, Mai, Lei, McNeish, Rachel E., Mina, Odette, Minor, Elizabeth C., Primpke, Sebastian, Rickabaugh, Keith, Renick, Violet C., Singh, Samiksha, van Bavel, Bert, Vollnhals, Florian, Rochman, Chelsea M.

“…Previous studies have evaluated method performance for quantifying and characterizing microplastics in clean water, but little is known about the efficacy of…”
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Evaluating Thin-Layer Sediment Placement as a Tool for Enhancing Tidal Marsh Resilience: a Coordinated Experiment Across Eight US National Estuarine Research Reserves by Raposa, Kenneth B., Woolfolk, Andrea, Endris, Charlie A., Fountain, Monique C., Moore, Gregg, Tyrrell, Megan, Swerida, Rebecca, Lerberg, Scott, Puckett, Brandon J., Ferner, Matthew C., Hollister, Jeffrey, Burdick, David M., Champlin, Lena, Krause, Johannes R., Haines, Dustin, Gray, Andrew B., Watson, Elizabeth B., Wasson, Kerstin

“…Thin-layer sediment placement (TLP) is a promising management tool for enhancing tidal marsh resilience to rising seas. We conducted a 3-year experiment at…”
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The Evolution of Sediment Sources Over a Sequence of Postfire Sediment‐Laden Flows Revealed Through Repeat High‐Resolution Change Detection by Guilinger, James J., Gray, Andrew B., Barth, Nicolas C., Fong, Brandon T.

“…Postfire debris flows are particularly complex to study because they do not form discrete initiation locations and commonly involve multiple simultaneously…”
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Hydrogen peroxide treatment effects on the particle size distribution of alluvial and marsh sediments by Gray, Andrew B., Pasternack, Gregory B., Watson, Elizabeth B.

“…Pretreatment of sediment with hydrogen peroxide to remove organic constituents and aid deflocculation is a common component of particle size analyses of…”
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Wildfire impacts on the persistent suspended sediment dynamics of the Ventura River, California by Jumps, Nathan, Gray, Andrew B., Guilinger, James J., Cowger, Win C.

“…Ventura River watershed, California, USA After wildfire, small mountainous watersheds can produce dramatic increases in fluvial sediment transport, but these…”
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Particle size characterization of historic sediment deposition from a closed estuarine lagoon, Central California by Watson, Elizabeth Burke, Pasternack, Gregory B., Gray, Andrew B., Goñi, Miguel, Woolfolk, Andrea M.

“…Recent studies of estuarine sediment deposits have focused on grain size spectra as a tool to better understand depositional processes, in particular those…”
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Abandoned channel fill sequences in the tidal estuary of a small mountainous, dry-summer river by Gray, Andrew B., Pasternack, Gregory B., Watson, Elizabeth B., Goñi, Miguel A.

“…This study proposes a modification of the current model for abandoned channel fill stratigraphy produced in unidirectional flow river reaches to incorporate…”
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The effect of El Niño Southern Oscillation cycles on the decadal scale suspended sediment behavior of a coastal dry-summer subtropical catchment by Gray, Andrew B., Pasternack, Gregory B., Watson, Elizabeth B., Warrick, Jonathan A., Goñi, Miguel A.

“…Rivers display temporal dependence in suspended sediment–water discharge relationships. Although most work has focused on multi‐decadal trends, river sediment…”
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Unexpected Nitrogen Sources in a Tropical Urban Estuary by Oczkowski, Autumn J., Santos, Emily A., Martin, Rose M., Gray, Andrew B., Hanson, Alana R., Watson, Elizabeth B., Huertas, Evelyn, Wigand, Cathleen

“…Tropical urban estuaries are severely understudied. Little is known about the basic biogeochemical cycles and dominant ecosystem processes in these…”
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