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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
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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Coupling near-surface geomorphology with mangrove community diversity at the estuarine scale: A case study at Dongzhaigang Bay, China Coupling near-surface geomorphology with mangrove community diversity at the estuarine scale: A case study at Dongzhaigang Bay, China
Coastal wetlands are key features of the Earth’s surface and are characterized by a diverse array of coupled geomorphological and biological processes. However, the links between the distribution of biodiversity (e.g., species and structural diversity) and the formation of coastal geomorphology are not well understood on a landscape scale most useful to coastal zone managers. This study...
Authors
Guogui Chen, Wei Hong, Xuan Gu, Ken Krauss, Kaiyuan Zhao, Haifeng Fu, Luzhen Chen, Mao Wang, Wenqing Wang
Impacts of ocean-atmosphere teleconnection patterns on the south-central United States Impacts of ocean-atmosphere teleconnection patterns on the south-central United States
Recent research has linked the climate variability associated with ocean-atmosphere teleconnections to impacts rippling throughout environmental, economic, and social systems. This research reviews recent literature through 2021 in which we identify linkages among the major modes of climate variability, in the form of ocean-atmosphere teleconnections, and the impacts to temperature and
Authors
Robert V. Rohli, Gregg Snedden, Elinor R. Martin, Kristine L. DeLong
New generation hyperspectral data From DESIS compared to high spatial resolution PlanetScope data for crop type classification New generation hyperspectral data From DESIS compared to high spatial resolution PlanetScope data for crop type classification
Thoroughly investigating the characteristics of new generation hyperspectral and high spatial resolution spaceborne sensors will advance the study of agricultural crops. Therefore, we compared the performances of hyperspectral Deutsches Zentrum fur Luftund Raumfahrt- (DLR) Earth Sensing Imaging Spectrometer (DESIS) and high spatial resolution PlanetScope in classifying eight crop types...
Authors
Itiya P. Aneece, Daniel Foley, Prasad Thenkabail, Adam Oliphant, Pardhasaradhi G. Teluguntla
Engaging stakeholders to develop a decision support model of conservation risk and management capacity to prioritize investments in Bull Trout recovery Engaging stakeholders to develop a decision support model of conservation risk and management capacity to prioritize investments in Bull Trout recovery
Rarely are sufficient resources available to support the full suite of management actions to promote recovery of a species across their entire distribution. Decision support models are a tool that can inform natural resource management decisions with consideration of the perspectives from a variety of stakeholders who work across large geographic and jurisdictional extents. We offer an...
Authors
William R. Brignon, M. Brian Davis, Stephanie Gunkel, Jason B. Dunham, Michael H. Meeuwig, Chris S Allen, Shaun Clements
Characterization of vegetated and ponded wetlands with implications towards coastal wetland marsh collapse Characterization of vegetated and ponded wetlands with implications towards coastal wetland marsh collapse
Coastal wetlands provide numerous ecosystem services; yet these ecosystems are increasingly vulnerable to climate change stressors, especially excessive flooding from sea-level rise and storm events. This study highlights the important contribution of vegetation belowground biomass to marsh stability and identifies loss of vegetation as a critical driver of marsh collapse. We...
Authors
Jack A. Cadigan, Navid H. Jafari, Camille L. Stagg, Claudia Laurenzano, Brian D. Harris, Amina E. Meselhe, Jason Dugas, Brady Couvillion
From data to interpretable models: Machine learning for soil moisture forecasting From data to interpretable models: Machine learning for soil moisture forecasting
Soil moisture is critical to agricultural business, ecosystem health, and certain hydrologically driven natural disasters. Monitoring data, though, is prone to instrumental noise, wide ranging extrema, and nonstationary response to rainfall where ground conditions change. Furthermore, existing soil moisture models generally forecast poorly for time periods greater than a few hours. To...
Authors
Aniruddha Basak, Kevin M. Schmidt, Ole Mengshoel
Stratigraphy and eruption history of maars in the Clear Lake Volcanic Field, California Stratigraphy and eruption history of maars in the Clear Lake Volcanic Field, California
The Clear Lake Volcanic Field (CLVF) is the northernmost and youngest field in a chain of volcanic provinces in the California Coast Range mountains. Effusive and explosive volcanic activity in the field has spanned at least 2.1 million years, with the youngest eruptions comprising a series of maar craters at the edges of, and within, Clear Lake itself. This work documents the first...
Authors
Jessica L. Ball
Balancing future renewable energy infrastructure siting and associated habitat loss for migrating whooping cranes Balancing future renewable energy infrastructure siting and associated habitat loss for migrating whooping cranes
The expansion of human infrastructure has contributed to novel risks and disturbance regimes in most ecosystems, leading to considerable uncertainty about how species will respond to altered landscapes. A recent assessment revealed that whooping cranes (Grus americana), an endangered migratory waterbird species, avoid wind-energy infrastructure during migration. However, uncertainties...
Authors
Kristen S. Ellis, Aaron T. Pearse, David A. Brandt, Mark T. Bidwell, Wade C. Harrell, Matthew J. Butler, Max Post van der Burg
Predictive models of selective cattle use of large, burned landscapes in semiarid sagebrush-steppe Predictive models of selective cattle use of large, burned landscapes in semiarid sagebrush-steppe
The fire-exotic annual grass cycle is a severe threat to shrub-steppe rangelands, and a greater understanding of how livestock grazing relates to the problem is needed to guide effective management interventions. Grazing effects vary throughout shrub-steppe rangelands because livestock are selective in their use within pastures. Thus, knowing where cattle are located and concentrate...
Authors
Christopher R. Anthony, Matthew Germino
Migration Mapper: Identifying movement corridors and seasonal ranges for large mammal conservation Migration Mapper: Identifying movement corridors and seasonal ranges for large mammal conservation
Modern tracking technology has facilitated a novel understanding of terrestrial mammal movement while revealing that movements are being truncated and lost. The first step towards conserving mobile animals is identifying movement corridors and key seasonal ranges. Yet, the identification and subsequent mapping of these important areas has remained a challenge due to the analytical skills...
Authors
Jerod A. Merkle, Joshua A. Gage, Hall Sawyer, Blake Lowrey, Matthew J. Kauffman
Calibrated relative sea levels constrain isostatic adjustment and ice history in northwest Greenland Calibrated relative sea levels constrain isostatic adjustment and ice history in northwest Greenland
Relative Sea Levels (RSLs) derived primarily from marine bivalves near Petermann Glacier, NW Greenland, constrain past regional ice-mass changes through glacial isostatic adjustment (GIA) modeling. Oxygen isotopes measured on bivalves corrected for shell-depth habitat and document changing meltwater input. Rapid RSL fall of up to 62 m/kyr indicates ice loss at or prior to ∼9 ka...
Authors
Anna Glueder, Alan Mix, Glenn A. Milne, Brendan Reilly, Jorie Clark, Martin Jakobsson, Larry Mayer, Stewart Fallon, John R. Southon, June Padman, Andrew Ross, Thomas M. Cronin, Jennifer McKay
Don't judge an orogen by its cover: Kinematics of the Appalachian décollement from seismic anisotropy Don't judge an orogen by its cover: Kinematics of the Appalachian décollement from seismic anisotropy
As North America collided with Africa to form Pangea during the Alleghanian orogeny, crystalline and sedimentary rocks in the southeastern United States were thrust forelandward along the Appalachian décollement. We examined Ps receiver functions to better constrain the kinematics of this prominent subsurface structure. From Southeastern Suture of the Appalachian Margin Experiment...
Authors
Michael G. Frothingham, Vera Schulte-Pelkum, Kevin H. Mahan, Arthur J. Merschat, Makayla Mather, Zulliet Cabrera Gomez