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Browse more than 65,000 articles authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
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Tropical or extratropical cyclones: What drives the compound flood hazard, impact, and risk for the United States Southeast Atlantic coast? Tropical or extratropical cyclones: What drives the compound flood hazard, impact, and risk for the United States Southeast Atlantic coast?
Subtropical coastlines are impacted by both tropical and extratropical cyclones. While both may lead to substantial damage to coastal communities, it is difficult to determine the contribution of tropical cyclones to coastal flooding relative to that of extratropical cyclones. We conduct a large-scale flood hazard and impact assessment across the subtropical Southeast Atlantic Coast of...
Authors
Kees Nederhoff, Tim Leijnse, Kai Alexander Parker, Jennifer Anne Thomas, Andrea O’Neill, Maarten van Ormondt, Robert T. McCall, Li H. Erikson, Patrick L. Barnard, Amy C. Foxgrover, Wouter Klessens, Norberto C. Nadal-Caraballo, Chris Massey
Seasonal roost characteristics and fall behavior of coastal populations of Northern Myotis (Myotis septentrionalis) Seasonal roost characteristics and fall behavior of coastal populations of Northern Myotis (Myotis septentrionalis)
Temperate bats exhibit seasonal and sex differences in resource selection and activity patterns that are influenced by ambient conditions. During fall, individuals face energetic trade-offs as they make choices relating to migration, mating, and hibernation that may diverge for populations throughout their range. However, research has largely focused on the summer maternity and winter...
Authors
Samantha Hoff, Casey Pendergast, Luanne Johnson, Elizabeth Olson, Danielle O’Dell, Zara R. Dowling, Katherine M. Gorman, Carl Herzog, Wendy Christine Turner
Rainfall reduces the potential for competitive suppression of a globally endangered ungulate by livestock Rainfall reduces the potential for competitive suppression of a globally endangered ungulate by livestock
Protected areas often are too small to house populations of wide-ranging species. Viability of wildlife populations therefore depends on whether interactions with humans and their land uses are negative, neutral, or positive. In central Iran, we measured interactions between globally endangered onagers (Equus hemionus onager) and livestock by analyzing remotely-sensed vegetation metrics...
Authors
Saeideh Esmaeili, Mahmoud-Reza Hemami, Petra Kaczensky, Kathryn A. Schoenecker, Sarah R.B. King, Bahareh Shahriari, Chris Walzer, Jake Goheen
A high-resolution, daily hindcast (1990-2021) of Alaskan river discharge and temperature from coupled and optimized physical models A high-resolution, daily hindcast (1990-2021) of Alaskan river discharge and temperature from coupled and optimized physical models
Water quality and freshwater ecosystems are affected by river discharge and temperature. Models are frequently used to estimate river temperature on large spatial and temporal scales due to limited observations of discharge and temperature. In this study, we use physically based river routing and temperature models to simulate daily discharge and river temperature for rivers in 138...
Authors
Dylan Blaskey, Michael Gooseff, Yifan Cheng, Andrew Newman, Joshua C. Koch, Keith Musselman
Opportunities and challenges for precipitation forcing data in post-wildfire hydrologic modeling applications Opportunities and challenges for precipitation forcing data in post-wildfire hydrologic modeling applications
The frequency and extent of wildfires have increased in recent decades with immediate and cascading effects on water availability in many regions of the world. Precipitation is used as primary input to hydrologic models and is a critical driver of post-wildfire hydrologic hazards including debris flows, flash floods, water-quality effects, and reservoir sedimentation. These models are...
Authors
Trevor Fuess Partridge, Zachary Johnson, Rachel Sleeter, Sharon L. Qi, Michelle A. Walvoord, Sheila F. Murphy, Cara L. Peterman-Phipps, Brian A. Ebel
Predator disturbance contributed to Common Murre Uria aalge breeding failures in Cook Inlet, Alaska following the 2014–2016 Pacific marine heatwave Predator disturbance contributed to Common Murre Uria aalge breeding failures in Cook Inlet, Alaska following the 2014–2016 Pacific marine heatwave
The 2014-2016 Pacific marine heatwave caused unprecedented die-offs and multi-year reproductive failures for Common Murres Uria aalge along the west coast of North America. Lingering impacts, such as declines in colony attendance and productivity, have persisted at some colonies following the heatwave and are attributed largely to changes in prey availability and quality. Here, we...
Authors
Caitlin Elizabeth Marsteller, Mayumi L. Arimitsu, Sarah K. Schoen, Samuel B Stark, John F. Piatt
Intercomparison of same-day remote sensing data for measuring winter cover crop biophysical traits Intercomparison of same-day remote sensing data for measuring winter cover crop biophysical traits
Winter cover crops are planted during the fall to reduce nitrogen losses and soil erosion and improve soil health. Accurate estimations of winter cover crop performance and biophysical traits including biomass and fractional vegetative groundcover support accurate assessment of environmental benefits. We examined the comparability of measurements between ground-based and spaceborne...
Authors
Alison Thieme, Kusuma Prabhakara, Jyoti Jennewein, Brian T. Lamb, Gregory T. McCarty, W. Dean Hively
Versatile modeling of deformation (VMOD) inversion framework: Application to 20 years of observations at Westdahl Volcano and Fisher Caldera, Alaska, US Versatile modeling of deformation (VMOD) inversion framework: Application to 20 years of observations at Westdahl Volcano and Fisher Caldera, Alaska, US
We developed an open source, extensible Python-based framework, that we call the Versatile Modeling of Deformation (VMOD), for forward and inverse modeling of crustal deformation sources. VMOD abstracts from specific source model implementations, data types and inversion methods. We implement the most common geodetic source models which can be combined to model and analyze multi-source...
Authors
Mario Angarita, Ronni Grapenthin, Scott Henderson, Michael S Christoffersen, Kyle R. Anderson
Eutrophication saturates surface elevation change potential in tidal mangrove forests Eutrophication saturates surface elevation change potential in tidal mangrove forests
Coastal mangrove forests are at risk of being submerged due to sea-level rise (SLR). However, mangroves have persisted with changing sea levels due to a variety of biotic and physical feedback mechanisms that allow them to gain and maintain relative soil surface elevation. Therefore, mangrove’s resilience to SLR is dependent upon their ability to build soil elevation at a rate that...
Authors
Jeremy R. Conrad, Ken Krauss, Brian W. Benscoter, Ilka C. Feller, Nicole Cormier, Darren Johnson
Using climate-fire analog mapping to inform climate change adaptation strategies for wildland fire in protected areas of the conterminous US Using climate-fire analog mapping to inform climate change adaptation strategies for wildland fire in protected areas of the conterminous US
Potential changes in wildland fire regimes due to anthropogenic climate change can be projected using data from climate models, but directly applying these meteorological variables to long-term planning and adaptive management activities may be difficult for decision makers. Analog mapping, in contrast, creates more intuitive assessments of changing fire regimes that also recognize the...
Authors
Adam Terando, Peng Gao, John A. Kupfer, Kevin S. Young, J. Kevin Hiers
SSEBop evapotranspiration estimates using synthetically derived Landsat data from the continuous change detection and classification algorithm SSEBop evapotranspiration estimates using synthetically derived Landsat data from the continuous change detection and classification algorithm
The operational Simplified Surface Energy Balance (SSEBop) model has been utilized to generate gridded evapotranspiration data from Landsat images. These estimates are primarily driven by two sources of information: reference evapotranspiration and Landsat land surface temperature (LST) values. Hence, SSEBop is limited by the availability of Landsat data. Here, in this proof-of-concept...
Authors
Mikael Peter Hiestand, Heather J. Tollerud, W. Chris Funk, Gabriel B. Senay, MacKenzie Friedrichs, Kate Fickas
Comparison of measured versus modeled TOC in the Tuscaloosa marine shale of Southwestern Mississippi, U.S.A. Comparison of measured versus modeled TOC in the Tuscaloosa marine shale of Southwestern Mississippi, U.S.A.
This study presents a comparison of measured versus modeled total organic carbon (TOC) in the Upper Cretaceous Tuscaloosa marine shale (TMS) of southwestern Mississippi as a case study to evaluate the effects of mineralogy on the TOC estimated from the ΔlogR method. The ΔlogR method is utilized to calculate TOC, which involves baselining sonic transit time and resistivity log curves in a...
Authors
Celeste D. Lohr, Matthew D. Merrill