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Region 7: Upper Colorado Basin

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USGS Science Centers in Region 7-Upper Colorado Basin produce hundreds of USGS-series publications, journal papers, and books each year that are subject to rigorous review by USGS specialists. The publications shown below on this page are related to study areas and staff members of USGS Science Centers in Region 7 compiled from the USGS Publications Warehouse.

Filter Total Items: 4,849
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Year Published: 2018

Fire, vegetation, and Holocene climate in a southeastern Tibetan lake: a multi-biomarker reconstruction from Paru Co

The fire history of the Tibetan Plateau over centennial to millennial timescales is not well known. Recent ice core studies reconstruct fire history over the past few decades but do not extend through the Holocene. Lacustrine sedimentary cores, however, can provide continuous records of local environmental change on millennial scales during the...

Callergaro, Alice; Battistel, Dario; Kehrwald, Natalie M.; Matsubara Pereira, Felipe; Kirchgeorg, Torben; Villoslada Hidalgo, Maria del Carmen; Bird, Broxton W.; Barbante, Carlo
Callegaro, A., Battistel, D., Kehrwald, N. M., Matsubara Pereira, F., Kirchgeorg, T., Villoslada Hidalgo, M. D. C., Bird, B. W., and Barbante, C.: Fire, vegetation, and Holocene climate in a southeastern Tibetan lake: a multi-biomarker reconstruction from Paru Co, Clim. Past, 14, 1543-1563, https://doi.org/10.5194/cp-14-1543-2018, 2018.

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Year Published: 2018

Application of hydrologic-tracer techniques to the Casargiu adit and Rio Irvi (SW-Sardinia, Italy): Using enhanced natural attenuation to reduce extreme metal loads

Hydrologic tracer techniques were applied to Rio Irvi (SW Sardinia), a stream affected by mine drainage, allowing the calculation of stream discharge and metal loads and comparison to other streams. The calculated discharge showed a continuous increase from near 21.2 L/s to 29.1 L/s. Cumulative loads of mine-related constituents, including the...

De Giudici, Giovanni; Medas, Daniela; Cidu, Rosa; Lattanzi, Pierfranco; Podda, Francesca; Frau, Franco; Rigonat, Nicola; Pusceddu, Claudia; Da Pelo, Stefania; Onnis, Patrizia; Marras, Pier Andrea; Wanty, Richard B.; Kimball, Briant A.
De Giudici, G. Medas, D., Cidu, R., Lattanzi, P., Podda, F., Frau, F., Rigonat, N., Pusceddu, C., Da Pelo, S., Onnis, P., Marras, P.A., Wanty, R.B., Kimball. B., in press. Application of hydrologic-tracer techniques to the Casargiu adit and Rio Irvi (SW-Sardinia, Italy): using enhanced natural attenuation to reduce extreme metal loads. Applied Geochemistry 96, 42-54

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Year Published: 2018

Iron dissolution and speciation in atmospheric mineral dust: Metal-metal synergistic and antagonistic effects

Under acidic atmospheric conditions, iron leached from atmospheric mineral dust may influence the distribution of bioavailable iron at a global scale. However, the effects of non-Fe-containing minerals on iron dissolution remain unknown. This work describes metal-metal synergistic and antagonistic effects on iron dissolution that go beyond...

Hettiarachchi, Eshani; Reynolds, Richard L.; Goldstein, Harland L.; Moskowitz, Bruce M.; Rubasinghege, Gayan

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Year Published: 2018

Flood-inundation maps for the South Platte River at Fort Morgan, Colorado, 2018

In 2017, the U.S. Geological Survey (USGS), in cooperation with the Colorado Water Conservation Board (CWCB), studied floods in the historic record to produce a library of flood-inundation maps for the South Platte River at Fort Morgan, Colorado. Digital flood-inundation maps for a 4.5-mile (7.2-kilometers) reach of the South Platte River at Fort...

Kohn, Michael S.; Patton, Thuy T.
Kohn, M.S., and Patton, T.T., 2018, Flood-inundation maps for the South Platte River at Fort Morgan, Colorado, 2018: U.S. Geological Survey Scientific Investigations Report 2018–5114, 14 p., https://doi.org/10.3133/sir20185114.

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Year Published: 2018

Geologic map of the Osage SW 7.5ʹ quadrangle, Newton, Madison, and Carroll Counties, Arkansas

This map summarizes the geology of the U.S. Geological Survey Osage SW 7.5-minute quadrangle in the Ozark Plateaus region of northern Arkansas. Physiographically, the Osage SW quadrangle is located within a transitional area between the Boston Mountains to the south, and the Springfield Plateau to the north. Geologically, the area is on the...

Turner, Kenzie J.; Hudson, Mark R.
Turner, K.J., and Hudson, M.R., 2018, Geologic map of the Osage SW 7.5' quadrangle, Newton, Madison, and Carroll Counties, Arkansas: U.S. Geological Survey Scientific Investigations Map 3416, scale 1:24,000, https://doi.org/10.3133/sim3416.

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Year Published: 2018

Improving earthquake rupture forecasts using California as a guide

This article discusses ways in which earthquake rupture forecast models might be improved. Because changes are most easily described in the context of specific models, the third Uniform California Earthquake Rupture Forecast (UCERF3) and its presumed successor, UCERF4, is used as a basis for discussion. Virtually all of the issues and possible...

Field, Edward H.
Field, E. H. (2018). Improving Earthquake Rupture Forecasts Using California as a Guide, Seismological Research Letters, https://doi.org/10.1785/0220180151.

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Year Published: 2018

Downhole log evidence for the coexistence of structure II gas hydrate and free gas below the bottom simulating reflector in the South China Sea

Stratigraphic layered pore-filling gas hydrates are identified above the bottom simulating reflector (BSR) using the well log and core data acquired at Sites W11 and W17 during the third gas hydrate drilling expedition conducted by China's Geological Survey/Guangzhou Marine Geological Survey (GMGS3) in the South China...

Qian, Jin; Wang, Xiujuan; Collett, Timothy S.; Guo, Yiqun; Kang, Dongju; Jin, Jiapeng

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Year Published: 2018

Machine learning for ecosystem services

Recent developments in machine learning have expanded data-driven modelling (DDM) capabilities, allowing artificial intelligence to infer the behaviour of a system by computing and exploiting correlations between observed variables within it. Machine learning algorithms may enable the use of increasingly available ‘big data’ and assist applying...

Willcock, Simon; Martinez-Lopez, Javier; Hooftman, Danny A.P.; Bagstad, Kenneth J.; Balbi, Stefano; Marzo, Alessia; Prato, Carlo; Sciandrello, Saverio; Signorello, Giovanni; Voigt, Brian; Villa, Ferdinando; Bullock, James M.; Athanasiadis, Ioannis
Willcock, S., J. Martínez-López, D.A.P. Hooftman, K.J. Bagstad, S. Balbi, A. Marzo, C. Prato, S. Sciandrello, G. Signorello, B. Voigt, F. Villa, J.M. Bullock, and I.N. Athanasiadis. 2018. Machine-learning for ecosystem services. Ecosystem Services 165-174.

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Year Published: 2018

Observations of rotational motions from local earthquakes using two temporary portable sensors in Waynoka, Oklahoma

Characterizing rotational motions from earthquakes at local distances has the potential to improve earthquake engineering and seismic gradiometry by better characterizing the complete seismic wavefield. Applied Technology Associates (ATA) has developed a proto‐seismic magnetohydrodynamic (SMHD) three‐component rotational rate sensor. We deploy two...

Ringler, Adam T.; Anthony, Robert E.; Wilson, David C.; Holland, A.A.; Lin, C.-J.

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Year Published: 2018

Current research in land, water, and agroecosystems: ASABE journals 2017 year in review

This article highlights current research into land and water resources, agroecosystems, and agricultural production systems published by the Natural Resources and Environmental Systems (NRES) community of ASABE journals (Transactions of the ASABE and Applied Engineering in Agriculture) in 2017. This article reviews the context, scope, and key...

Douglas-Mankin, Kyle R.
Douglas-Mankin, K.R., 2018, Current Research in Land, Water, and Agroecosystems: ASABE Journals 2017 Year in Review, Transactions of the ASABE, 61(5).

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Year Published: 2018

Examining the relationship between portable luminescence reader measurements and depositional ages of paleowetland sediments, Las Vegas Valley, Nevada

Portable luminescence readers are exciting new tools that have the potential to rapidly determine the age structure of late Quaternary stratigraphic columns. This is important because high-resolution age profiling can reveal details about the temporal dynamics of climate cause and ecosystem effect, often while...

Gray, Harrison J.; Mahan, Shannon A.; Springer, Kathleen B.; Pigati, Jeffrey S.

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Year Published: 2018

Wetland stratigraphic evidence for variable megathrust earthquake rupture modes at the Cascadia subduction zone

Although widespread agreement that the Cascadia subduction zone produces great earthquakes of magnitude 8 to 9 was reached decades ago, debate continues about the rupture lengths, magnitudes, and frequency of megathrust earthquakes recorded by wetland stratigraphy fringing Cascadia’s estuaries. Correlation of such coastal earthquake evidence along...

Nelson, Alan R.; Witter, Robert C.; Englehart, Simon; Hawkers, Andrea; Horton, Benjamin P.
Wetland stratigraphic evidence for variable megathrust earthquake rupture modes at the Cascadia subduction zone, in Piscitelli, A., Milella, M., and Mastronuzzi, G., eds, Abstract volume for IGCP Project 639 - Sea-level change from minutes to millenia, Crossing southern Italy, a traveling meeting from Taranto to Siracusa, Italy 17-21 Sept 2018, p. 85-87.

Photos and videos described and linked on this webpage come from a wide variety of USGS science activities and presentations performed by USGS Science Center staff members in the Region 7-Upper Colorado Basin.

Filter Total Items: 515
Image: Tree-Killing Las Conchas Fire in New Mexico

Tree-Killing Las Conchas Fire in New Mexico

USGS scientist Craig D. Allen observes the results of the extensive, tree-killing fire that consumed almost all above-ground biomass in this part of the Las Conchas Fire burn area in the Jemez Mountains, New Mexico. Photo taken in late August 2011, two months post-fire. Forest drought stress is highly correlated with mortality from poor growth, bark beetle outbreaks, and

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Mammoth Hot Springs - Travertine Terraces and Parade Ground Webcam

Yellowstone is a place of change, and this view highlights a place where change is constant and evident—the travertine terraces of Mammoth Hot Springs. Terraces form when water rises through limestone, which then allows the water to carry high amounts of dissolved calcium carbonate. At the surface, carbon dioxide is released and the calcium carbonate is deposited, forming

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Plots of realtime Meteorological conditions at Devil's Thumb site, Colorado

Devil's Thumb Meteorologic site

Realtime snow weather conditions (temperature, relative humidity, wind speed, snow depth) at Devil's Thumb meteorological site in Colorado.
 

Pecos River Webcam Near Roswell, NM, Site #334716104175400

Pecos River Webcam Near Roswell, NM

Webcam image of the Pecos River near Roswell, New Mexico - Site #334716104175400

This page includes links to Social Media accounts (top of page), Science Centers (middle of page), and Regional Office staff members (bottom of page) of the USGS Region 7--Upper Colorado Basin.