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Big data for small streams: Leveraging a coarse national model to enhance fine-resolution stream temperature predictions Big data for small streams: Leveraging a coarse national model to enhance fine-resolution stream temperature predictions
Predictive stream temperature models are commonly used to address spatial and temporal gaps in observational data because stream temperature information is essential for environmental management decisions. National models capture broad patterns driven by climate, topography, and seasonality, but often lack the spatial resolution to simulate fine-scale variation in groundwater discharge...
Authors
Janet R. Barclay, Lauren Elizabeth Koenig, Yingda Fan, X. Jia, Alison P. Appling
Streamflow assessment of Birch Creek, southern boundary of the Blackfeet Indian Reservation, Pondera County, northwestern Montana—Synoptic and continuous streamflow measurements through 2022 Streamflow assessment of Birch Creek, southern boundary of the Blackfeet Indian Reservation, Pondera County, northwestern Montana—Synoptic and continuous streamflow measurements through 2022
The U.S. Geological Survey, in cooperation with the Blackfeet Water Department, performed this study to assist water-resource managers in understanding and quantifying irrigation diversions, instream flows, and the spatial and temporal streamflow dynamics of Birch Creek in northwestern Montana. Birch Creek forms the southernmost boundary of the Blackfeet Indian Reservation and is highly...
Authors
Rodney R. Caldwell, Peter M. McCarthy, Sean M. Lawlor, Brett A. Price, Tyrel E. Fenner
A spatial analysis of the groundwater emergence flood hazard in Long Island, New York, and coastal areas surrounding Long Island Sound in New York, Connecticut, and Rhode Island A spatial analysis of the groundwater emergence flood hazard in Long Island, New York, and coastal areas surrounding Long Island Sound in New York, Connecticut, and Rhode Island
Long Island, New York, and nearby coastal areas surrounding Long Island Sound are densely populated and, like other coastal areas, are susceptible to flooding from several potential sources, including stormwater from precipitation events, tidal flooding and storm surge, and groundwater emergence flooding. Groundwater emergence fooding refers to the intersection of a rising water table...
Authors
Kristina K. Masterson, Robert J. Welk, Janet R. Barclay, Kalle L. Jahn, Liv M. Herdman
Terrain-based map of mélange and intact rock at the junction of Coastal and Central Belt rocks of the Franciscan Complex between Gualala and Ukiah, northern California Coast Ranges Terrain-based map of mélange and intact rock at the junction of Coastal and Central Belt rocks of the Franciscan Complex between Gualala and Ukiah, northern California Coast Ranges
A terrain-based map of a large area of Franciscan Complex between the San Andreas and Maacama faults east of Point Arena, California, provides much new detail compared to prior mapping. The new map reveals an unusual, structurally disrupted area that is defined by northwest-trending patches of erosionally resistant topography interspersed in subdued topography. These two terrain types...
Authors
Carl Wentworth
Global Fiducials Library Global Fiducials Library
Authors
Chelsea L. Carbo, Steven J. Smith, Chelsea J. Wass, Peter G. Rinkleff, Bruce F. Molnia
Humans experienced abrupt environmental changes at White Sands during the Last Glacial Maximum Humans experienced abrupt environmental changes at White Sands during the Last Glacial Maximum
Expanded excavations at White Sands National Park have unearthed 20 stratigraphic horizons containing in situ human footprints, megafaunal trackways, and linear features created by travois. Advances in radiocarbon dating of conifer pollen, combined with ages of aquatic seeds, refines the chronology of the footprint-bearing sequence to between 23.5 and 21.7 thousand years ago (ka)...
Authors
Kathleen B. Springer, Jeffrey S. Pigati, Jessica E. Tierney, Jeffrey S. Honke, Gonzalo Jiménez-Moreno, David Bustos, Thomas M. Urban, Daniel Odess, Edward A. Jolie, Alison J. Smith, Abigail J. Hunt, Patrick J. Martinez, Vincent L. Santucci, Sally C. Reynolds, Matthew R. Bennett
Limitations and potential applicability of mixing models and transit time estimates for mine-affected watersheds based on stable isotopes Limitations and potential applicability of mixing models and transit time estimates for mine-affected watersheds based on stable isotopes
Stable isotopes are a widely used tool in defining mixing of distinct waters and identifying solute sources on mine sites. Although the utility of stable isotopes in these approaches is well-acknowledged, analytical uncertainties and lack of endmember definition may limit the application of results in providing unambiguous information to facilitate remediation. In this context, this...
Authors
Connor P. Newman, James Emerson Smith, Nicholas J. Pieseski
Diet and trophic ecology of invasive Blue Catfish Ictalurus furcatus in an eastern shore tributary of the Chesapeake Bay Diet and trophic ecology of invasive Blue Catfish Ictalurus furcatus in an eastern shore tributary of the Chesapeake Bay
Blue Catfish Ictalurus furcatus were first introduced to Virginia tributaries of the Chesapeake Bay in the 1970s and have greatly expanded in population size and distribution, prompting ecological and economic concerns. This study investigates the diet and trophic ecology of invasive Blue Catfish in tidal, low-salinity reaches of the Nanticoke River and Marshyhope Creek, on the...
Authors
Zachary Crum, Clayton D. Raines, Christine Densmore, Regina Trott, Rodney T. Richardson, Christina Bradley, Corbin David Hilling, Noah R. Bressman
Hydrogeology and water quality of the unconsolidated aquifer system in the lower Fall Creek valley, Tompkins County, New York Hydrogeology and water quality of the unconsolidated aquifer system in the lower Fall Creek valley, Tompkins County, New York
The U.S. Geological Survey, in cooperation with Tompkins County and the Town of Dryden, conducted a hydrogeologic investigation of the lower Fall Creek unconsolidated aquifer system in Tompkins County, New York. This study is part of an ongoing effort to characterize major valley-fill aquifers in the region to support sustainable groundwater management. The lower Fall Creek valley...
Authors
Joshua C. Woda, Brandon L. Graham, William M. Kappel, John H. Williams, Kristina Gutchess, Shannon R. Fisher, Jack Monti, Matthew Jennings, Laura M. DeMott
3D broadband ground motion simulations of Cascadia megathrust earthquakes: Full-margin scenarios incorporating variable magnitudes and frontal thrust splay faulting 3D broadband ground motion simulations of Cascadia megathrust earthquakes: Full-margin scenarios incorporating variable magnitudes and frontal thrust splay faulting
Great megathrust earthquakes (∼Mw 8–9) that rupture along the Cascadia Subduction Zone pose significant shaking and tsunami hazards to the U.S. Pacific Northwest. Although these large earthquakes are documented in the geologic record, none have been recorded with modern instrumentation, complicating regional seismic hazard assessments. To improve constraints on seismic hazard estimates...
Authors
Audrey M. Dunham, Erin A. Wirth, Alex R. Grant, Arthur D. Frankel, Madeleine C. Lucas, Anna Ledeczi, Harold Tobin, Janet Watt, David A. Schmidt, Jeonghyeop Kim, James Biemiller
Phenological flexibility in nesting grassland birds over a half century informs timing of management Phenological flexibility in nesting grassland birds over a half century informs timing of management
The timing of biological events for wildlife species reflects and influences ecological and evolutionary processes and helps guide management actions to meet conservation objectives. Climate change may cause phenological shifts across trophic levels and ecosystems, which can have broad ecological impacts. Shifts may also result in mistiming between management practices based on...
Authors
Kristen S. Ellis, Michael J. Anteau, Lawrence D. Igl, Garrett J. MacDonald, Neal D. Niemuth, Aaron T. Pearse, Jill A. Shaffer, Christine A. Ribic, Josh L. Vest, Masanori Abe, Daniel S. Ackerman, Marissa A. Ahlering, Johanna N. Alpert, Anahit Amiri, Kent Andersson, Jacqueline K. Augustine, Kristel K. Bakker, Jeffrey L. Beck, Adam C. Behney, Jacy S. Bernath-Plaisted, Todd R. Bogenschutz, Eric K. Bollinger, Lauren E. Bortolotti, Andrew J. Boyce, Jeffrey D. Brawn, Fred C. Bryant, Andrew J. Campomizzi, Jay D. Carlisle, J. Matthew Carroll, Rachel Carroll, John P. Carroll, Justin R. Clarke, Michael R. Conover, Reesa Y. Conrey, Jaime J. Coon, Kyle A. Cutting, Stephen K. Davis, Dawn M. Davis, Duane R. Diefenbach, Jonathan B. Dinkins, R. Andrew Dreelin, Victoria J. Dreitz, Courtney J. Duchardt, Michael W. Eichholz, Susan N. Ellis-Felege, Kevin S. Ellison, Bradley C. Fedy, Samantha R. Fino, Robert J. Fletcher, Dillon T. Fogarty, Samuel D. Fuhlendorf, Pamela R. Garrettson, Robert J. Gates, Erin L. Gelling, James J. Giocomo, Alex Glass, Cheri L. Gratto-Trevor, Kirsty E.B. Gurney, Ryan D. Haffele, Christian A. Hagen, Vanessa B. Harriman, Samuel W.H. Harryman, David A. Haukos, Robert Thomas Haynam, Heather A. Herakovich, James R. Herkert, Fidel Hernández, Jason M. Hill, H. Jeffrey Homan, Torre J. Hovick, Jonathan A. Jenks, William F. Jensen, Aaron N. Johnston, Sydney-Marie Jones, Carly S. Kelly, Kaylan M. Kemink, Silka L.F. Kempema, Dylan C. Kesler, Christopher P. Kirol, Robert W. Klaver, Page E. Klug, Jesse L. Kolar, Nicola Koper, Kyle J. Kuechle, Jonathan D. Lautenbach, Zoe M. Lebrun-Southcott, David W. Londe, Scott R. Loss, Cullen M. Mackenzie, Patrick A. Magee, Douglas L. Manzer, John P. McCarty, Gwyn McKee, Ann E. McKellar, Lance B. McNew, James R. Miller, Megan C. Milligan, Ashlee K. Minor, Rocco J. Murano, Les D. Murray, David E. Naugle, Clayton K. Nielsen, Christopher J. Norment, Sarah B. Ogden, Lindsey A. Parsons, Brian D. Peer, Noah G. Perlut, James C. Pitman, Christopher D. Pollentier, Larkin A. Powell, Aaron C. Pratt, John P. Pulliam, Nancy M. Raginski, Dan L. Reinking, Kaitlyn M. Reintsma, Terry Z. Riley, Kevin M. Ringelman, Joseph R. Robb, Scott K. Robinson, Andres N. Rosales, Charlotte L. Roy, Kayla A. Ruth, Brett K. Sandercock, Kevin K. Sedivec, Steve K. Sherrod, Justin J. Shew, Mason L. Sieges, Jenny L. Sika, Susan K. Skagen, Cassandra G. Skaggs, Joseph Smith, Jennifer A. Smith, Kurt T. Smith, Alex J. Solem, Joshua D. Stafford, Glenn E. Stauffer, Matthew D. Stephenson, Lee Sutcliffe, Amber E. Swicegood, Jason D. Tack, Evan P. Tanner, Catrina V. Terry, Wendy P. Tori, Ashley M. Unger, Kelly R. VanBeek, William E. Vetter, Jay A VonBank, Brett L. Walker, Michael D. Whitson, Maiken Winter, Kimberly A. With, Donald H. Wolfe, Amy A. Yackel Adams, Benjamin Zuckerberg
Climate change is reshaping seagrass futures: Novel environments and opportunities along coastlines and across oceans Climate change is reshaping seagrass futures: Novel environments and opportunities along coastlines and across oceans
Seagrasses are a highly productive ecosystem that supports biodiversity and fisheries, protects coastlines, and buries globally significant carbon stocks. Because seagrasses are increasingly stressed by warmer, darker, and more variable waters, established management strategies may not guarantee future success. Here, we depict a global outlook for seagrass futures by synthesizing how...
Authors
Marc J.S. Hensel, Christopher J. Patrick, Christopher Brown, Jillian Dunic, Jonathan S. Lefcheck, Enie Hensel, Lina Mtwana Nordlund, Melisa C. Wong, Joel A. Carr, William C. Dennison, Katharina A. Engelhardt, Kendrick. Gary A., Karen McGlathery, Richard C. Zimmerman, David J. Wilcox, Robert J. Orth