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Projecting flood frequency curves under near-term climate change
Flood-frequency curves, critical for water infrastructure design, are typically developed based on a stationary climate assumption. However, climate changes are expected to violate this assumption. Here, we propose a new, climate-informed methodology for estimating flood-frequency curves under non-stationary future climate conditions. The methodology develops an asynchronous, semiparametric local-
Authors
Chandramauli Awasthi, Stacey A. Archfield, Karen R. Ryberg, Julie E. Kiang, A. Sankarasubramanian
U.S. Geological Survey Benchmark Glacier Project
The U.S. Geological Survey Benchmark Glacier Project combines decades of direct glaciological data with remote sensing data to advance the quantitative understanding of glacier-climate interactions. The global loss of glaciers, and consequent implications for water resources, sea level rise, and ecosystem function underscores the importance of U.S. Geological Survey glaciology research to facilit
Authors
Caitlyn Florentine, Lisa McKeon
An initial assessment of plankton tow detection probabilities for dreissenid mussels in the western United States
Early detection of dreissenid mussels (Dreissena polymorpha and D. rostriformis bugensis) is crucial to mitigating the economic and environmental impacts of an infestation. Plankton tow sampling is a common method used for early detection of dreissenid mussels, but little is known about the sampling intensity required for a high probability of early detection using the method. We used implicit dyn
Authors
Meaghan Winder, Adam Sepulveda, Andrew Hoegh
Electrical imaging for hydrogeology
Geophysical methods offer hydrogeologists unprecedented access to understanding subsurface parameters and processes. In this book, we outline the theory and application of electrical imaging methods, which inject current into the ground and measure the resultant potentials. These data are sensitive to rock type, grain size, porosity, pore fluid electrical conductivity, saturation, and temperature.
Authors
Kamini Singha, Timothy C. Johnson, Frederick Day-Lewis, Lee D. Slater
Divergent gene expression profiles in Alaskan sea otters: An indicator of chronic domoic acid exposure?
An opportunistic investigation into ecosystem instability in Kachemak Bay (KBay), Alaska, has led us to investigate exposure to toxic algae in sea otters. We used gene expression to explore the physiological health of sea otters sampled in KBay in May 2019. We found altered levels of gene transcripts in comparison with reference sea otters from clinically normal, oil-exposed, and nutritionally cha
Authors
Lizabeth Bowen, Susan Knowles, Kathi Lefebvre, Michelle St Martin, Michael Murray, Kimberly A. Kloecker, Daniel Monson, Ben Weitzman, Brenda Ballachey, Heather Coletti, Shannon C. Waters, C Cummings
Reference genome of the California glossy snake, Arizona elegans occidentalis: A declining California Species of Special Concern
The glossy snake (Arizona elegans) is a polytypic species broadly distributed across southwestern North America. The species occupies habitats ranging from California’s coastal chaparral to the shortgrass prairies of Texas and southeastern Nebraska, to the extensive arid scrublands of central México. Three subspecies are currently recognized in California, one of which is afforded state-level prot
Authors
Dustin A. Wood, Jonathan Q. Richmond, Merly Escalona, Mohan P. A. Marimuthu, Oanh Nguyen, Samuel Sacco, Eric Beraut, Michael F. Westphal, Robert N. Fisher, A. G. Vandergast, Erin Toffelmier, Ian J Wang, H. Bradley Shaffer
RNA-seq reveals potential gene biomarkers in fathead minnows (Pimephales promelas) for exposure to treated wastewater effluent
Discharged wastewater treatment plant (WWTP) effluent greatly contributes to the generation of complex mixtures of contaminants of emerging concern (CECs) in aquatic environments which often contain neuropharmaceuticals and other emerging contaminants that may impact neurological function. However, there is a paucity of knowledge on the neurological impacts of these exposures to aquatic organisms.
Authors
Peter Schumann, E. Meade, H. Zhi, G. H. LeFevre, Dana W. Kolpin, Shannon M. Meppelink, Luke R. Iwanowicz, Rachael F. Lane, A. Schmoldt, O. Mueller, R. D. Klaper
Multi-decadal simulation of marsh topography evolution under sea level rise and episodic sediment loads
Coastal marsh within Mediterranean climate zones is exposed to episodic watershed runoff and sediment loads that occur during storm events. Simulating future marsh accretion under sea level rise calls for attention to: (a) physical processes acting over the time scale of storm events and (b) biophysical processes acting over time scales longer than storm events. Using the upper Newport Bay in Sout
Authors
M W Brand, Kevin J. Buffington, J B Rogers, Karen M. Thorne, E D Stein, B F Sanders
Diverse tsunamigenesis triggered by the Hunga Tonga-Hunga Ha’apai eruption
On the evening of 15 January 2022, the Hunga Tonga-Hunga Ha’apai volcano1 unleashed a violent underwater eruption, blanketing the surrounding land masses in ash and debris. The eruption generated tsunamis observed around the world. An event of this type last occurred in 1883 during the eruption of Krakatau, and thus we have the first observations of a tsunami from a large emergent volcanic eruptio
Authors
Patrick Lynett, Maile McCann, Zili Zhou, Willington Renteria, Jose Borrero, Dougal Greer, 'Ofa Fa'anunu, Cyprien Bosserelle, Bruce E. Jaffe, SeanPaul La Selle, Andrew C. Ritchie, Alexander G. Snyder, Brandon Nasr, Jaqueline Bott, Nicholas A Graehl, Costas Synolakis, Behzad Ebrahimi, Ezgi Cinar
Numbers and presence of guarding dogs affect wolf and leopard predation on livestock in northeastern Iran
Livestock predation can pose socio-economic impacts on rural livelihoods and is the main cause of retaliatory killings of carnivores in many countries. Therefore, appropriate interventions to reduce livestock predation, lower conflict and promote coexistence are needed. Livestock guarding dogs have been traditionally used to reduce predation, yet details regarding the use of dogs, especially the n
Authors
Mahmood Soofi, Mobin Soufi, Andy Royle, Matthias Waltert, Igor Khorozyan
New projections of 21st century climate and hydrology for Alaska and Hawaiʻi
In the United States, high-resolution, century-long, hydroclimate projection datasets have been developed for water resources planning, focusing on the contiguous United States (CONUS) domain. However, there are few statewide hydroclimate projection datasets available for Alaska and Hawaiʻi. The limited information on hydroclimatic change motivates developing hydrologic scenarios from 1950 to 2099
Authors
Naoki Mizukami, Andrew J. Newman, Jeremy Littell, Thomas W. Giambelluca, Andrew W. Wood, Ethan D. Gutmann, Joseph J. Hamman, Diana R. Gergel, Bart Nijssen, Martyn . Clark, Jeffrey R. Arnold
Root hemiparasitic plants are associated with more even communities across North America
Root hemiparasitic plants both compete with and extract resources from host plants. By reducing the abundance of dominant plants and releasing subordinates from competitive exclusion, they can have an outsized impact on plant communities. Most research on the ecological role of hemiparasites is manipulative and focuses on a small number of hemiparasitic taxa. Here, we ask whether patterns in natur
Authors
Jasna Hodzic, Ian Pearse, Evelyn M. Beaury, Jeff Corbin, Jonathan D. Bakker