Publications
Browse more than 160,000 publications authored by our scientists over the past 100+ year history of the USGS. Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.
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Sediment nutrient dynamics in selected Milwaukee metropolitan area streams, Wisconsin, 2022
The U.S. Geological Survey and Milwaukee Metropolitan Sewerage District in Wisconsin have an ongoing partnership to monitor water quality in streams in the Milwaukee metropolitan area and to assess the effects of stream restoration on habitat and water quality. Because sediment nutrient dynamics can improve or further impair water quality, we measured sediment nitrogen and phosphorus...
Authors
Rebecca M. Kreiling, Lynn A. Bartsch, Kenna J. Gierke, Patrik M. Perner, Faith A. Fitzpatrick, Hayley T. Olds
A nationwide evaluation of crowd-sourced ambient temperature data
Growing concerns about heat in urban areas paired with the sparsity of weather stations have resulted in individuals drawing on data from citizen science sensor networks to fill in data gaps. The PurpleAir are the most widely-used low-cost air quality sensors in the contiguous United States with 14,777 deployed between 1 Jan 2017 and 20 July 2021. Although the air quality data from...
Authors
Priyanka deSouza, Peter Christian Ibsen, Daniel M. Westervelt, Ralph Kahn, Benjamin Zaitchik, Patrick Kinney
A synthesis of freshwater forested wetland soil organic carbon storage
Freshwater forested wetlands account for ~76% (918 M ha) of the total global wetland extent. However, freshwater forested wetlands are difficult to distinguish from upland forest due to canopy coverage, the abundance of wetland-nonwetland mosaics, seasonal hydropatterns, and fewer readily observable connections to large surface water bodies relative to marshes and other emergent habitats...
Authors
Yadav Sapkota, Jacob F. Berkowitz, Camille Stagg, Ryan R. Busby
Equilibrium line altitudes, accumulation areas, and the vulnerability of glaciers in Alaska
The accumulation area ratio (AAR) of a glacier reflects its current state of equilibrium, or disequilibrium, with climate and its vulnerability to future climate change. Here, we present an inventory of glacier-specific annual accumulation areas and equilibrium line altitudes (ELAs) for over 3000 glaciers in Alaska and northwest Canada (88% of the regional glacier area) from 2018 to 2022...
Authors
Lucas Zeller, Daniel J McGrath, Louis C. Sass, Caitlyn Florentine, Jacob Downs
Estimating indicators of cyanobacterial harmful algal blooms in New York State
Cyanobacteria harmful algal blooms (cyanoHABs) are a global concern for aquatic ecosystem and human health. Limited funding for monitoring programs and inconsistent determination of cyanoHAB occurrence present challenges for identifying commonly effective variables for characterizing cyanoHABs and the development of generalized models. We compiled a combination of water quality...
Authors
Philip Savoy, Rebecca Michelle Gorney, Jennifer L. Graham
Fast or slow: An evaluation of Ti-in-quartz diffusion coefficients through comparisons of quartz and plagioclase diffusion times
Diffusion geochronometry using Ti-in-quartz has become a valuable method in understanding the evolution of silicic magmas. However, four different options for Ti diffusivity (DTi) currently exist, spanning three orders of magnitude, resulting in substantially different estimated times and interpretations. We present Ti-in-quartz diffusion times for the Cerro Galán Ignimbrite using the...
Authors
Sophia Wang, Guilherme Gualda, Jordan Edward Lubbers, Adam Kent
Neural network-based temporal ensembling of water depth estimates derived from SuperDove Images
CubeSats provide a wealth of high-frequency observations at a meter-scale spatial resolution. However, most current methods of inferring water depth from satellite data consider only a single image. This approach is sensitive to the radiometric quality of the data acquired at that particular instant in time, which could be degraded by various confounding factors, such as sun glint or...
Authors
Milad Niroumand-Jadidi, Carl J. Legleiter, Francesca Bovolo
The North American greenhouse gas budget: Emissions, removals, and integration for CO2, CH4, and N2O (2010–2019): Results From the Second REgional Carbon Cycle Assessment and Processes Study (RECCAP2)
Accurate accounting of greenhouse-gas (GHG) emissions and removals is central to tracking progress toward climate mitigation and for monitoring potential climate-change feedbacks. GHG budgeting and reporting can follow either the Intergovernmental Panel on Climate Change methodologies for National Greenhouse Gas Inventory (NGHGI) reporting or use atmospheric-based “top-down” (TD)...
Authors
Benjamin Poulter, Guillermo Murray-Tortarolo, Daniel J. Hayes, Philippe Ciais, Robbie M. Andrew, Ana Bastos, Brendan Byrne, David Butman, Josep G. Canadell, Abhishek Chatterjee, Grant Domke, Andrew F. Feldman, Kelsey Foster, Neha Hunka, Robert B. Jackson, Werner A. Kurz, Ayia Lindquist, Maodian Liu, Ingrid Luijkx, Arnaud Mialon, Anna M. Michalak, John Miller, Wolfgang A. Obermeier, Naiqin Pan, James T. Randerson, Peter A. Raymond, Pierre Regnier, Laure Resplandy, Gerard Rocher-Ros, Nemesio Rodriquez-Fernandez, Judith A. Rosentreter, Julio Cesar Salazar-Neira, Suzanne E. Tank, Hanqin Tan, Rodrigo Vargas, Yohanna Villalobos, Jonathan A. Wang, Xinyuan Wei, Kimberly Wickland, Christopher J. Williams, Lisamarie Windham-Myers, Christopher W. Woodall, Qing Ying, Zhen Zhang
Linking tidal-creek sediment fluxes to vertical sediment accretion in a restored salt marsh
Despite growing interest and investment in salt-marsh restoration, relatively few marshes subjected to restoration efforts have been systematically monitored to assess physical restoration trajectory or success. In south San Francisco Bay, CA, USA, where 83% of wetlands were lost via human manipulation, the largest wetland restoration effort on the U.S. west coast is currently underway...
Authors
Daniel J. Nowacki, Jessica R. Lacy, SeanPaul La Selle
Nanometer-scale relationships between sedimentary organic matter molecular composition, fluorescence, cathodoluminescence, and reflectance: The importance of oxygen content at low thermal maturities
Molecular characterization of sedimentary organic matter (SOM), termed macerals, is a common goal when seeking to understand petroleum generation as well as other geologic processes in deep time. However, unambiguous measurement of discrete macerals is challenging due to the small size of organic particles in sedimentary rocks, the proximity of different organic matter types to one...
Authors
Aaron M. Jubb, Paul C. Hackley, Ryan J. McAleer, Jing Qu
Pediment formation and subsequent erosion in Gale crater: Clues to the climate history of Mars
Evidence of paleo-rivers, fans, deltas, lakes, and channel networks across Mars has prompted much debate about what climate conditions would permit the formation of these surface water derived features. Pediments, gently sloping erosional surfaces of low relief developed in bedrock, have also been identified on Mars. On Earth, these erosional landforms, often thought to be created by...
Authors
A.B. Bryk, W.E. Dietrich, Kristen A. Bennett, V.K. Fox, C.M. Fedo, M.P. Lamb, E.S. Kite, L.M. Thompson, S.G. Banham, J. Schieber, J.A. Grant, A.R. Vasavada, A.A. Fraeman, Lauren A. Edgar, P. J. Gasda, R.C. Wiens, J.P. Grotzinger, K. Stack-Morgan, R.E. Arvidson, O. Gasnault, S. Le Mouelic, S. Gupta, R.M.E. Williams, R.Y. Sheppard, K.W. Lewis, D.M. Rubin, W. Rapin, M.N. Hughes, M. Turner, S.A. Wilson, J.M. Davis, R.E. Kronyak, L. Le Deit, L.C. Kah, J. Frydenvang, R.J. Sullivan, C.C. Bedford, E. Dehouck, H.E. Newsom, M.C. Malin
Assessing the effect of coral reef restoration location on coastal flood hazard along the San Juan Coastline, Puerto Rico
Coastal resilience has become a pressing global issue due to the growing vulnerability of coastlines to the effects of climate change. Nature-based solutions have emerged as a promising approach to coastal protection to not only enhance coastal resilience, but also restore critical ecosystems. Coral reef restoration has the potential to provide ecosystem services benefits; however, there...
Authors
Ramin Familkhalili, Curt Storlazzi, Michael Nemeth, Shay Viehman