16 Works

Supporting Data: Complex Mixtures of Pesticides in Midwest U.S. Streams Indicated by POCIS Time-Integrating Samplers

Peter C. Van Metre, David A. Alvarez, Barbara J. Mahler, Lisa H. Nowell, Mark W. Sandstrom & Patrick W. Moran
The Midwest United States is an intensely agricultural region where pesticides in streams pose risks to aquatic biota, but temporal variability in pesticide concentrations makes characterization of their exposure to organisms challenging. To compensate for the effects of temporal variability, we deployed polar organic chemical integrative samplers (POCIS) in 100 small streams across the Midwest for about 5 weeks during summer 2013 and analyzed the extracts for 227 pesticide compounds. Analysis of water samples collected...

Locatable Mineral Assessment Tracts for the U.S. Geological Survey Sagebrush Mineral Resource Assessment Project

Carma A. San Juan, John D. Horton, Heather L. Parks, Mark J. Mihalasky, Eric D. Anderson, Mary Ellen Benson, Stephen E. Box, Pamela M. Cossette, Paul Denning, Stuart A. Giles, Susan Hall, Timothy S. Hayes & B. Carter Hearn
The polygon (vector) feature class represents locatable mineral resource assessment tracts (tracts of land) associated with the Department of the Interior (DOI) Sagebrush Focal Areas in Montana, Wyoming and Utah, central Idaho, and the Oregon-Nevada-Idaho border area. The mineral resources tracts are geographic areas that were assessed by the U.S. Geological Survey (USGS) and were determined to be geologically favorable for a deposit type of interest to a depth of 1 kilometer. Qualitative assessment methods...

Mineral commodity exporting ports of Latin America and the Caribbean

Michael S. Baker

USGS National Dam Removal Science Database Dam Removals

Daniel J Wieferich
This ScienceBase Item provides documentation and access to a dynamic query of the Spatial Feature Registry for dam removals that have been associated with a literature source describing the dam removal project and associated scientific studies. The Spatial Feature Registry is a dynamic collection in ScienceBase of geospatial features of importance as long-term, persistently identified items. Dam removal items in the Spatial Feature Registry provide part of the foundation for the National Dam Removal Science...

National Dam Removal Science Database

Jeff Duda, Daniel J. Wieferich & Sky Bristol
Removal of dams is increasing due to aging infrastructure, changing societal needs, and modern safety standards. Where possibilities for river restoration, or improved safety, exceed the benefits of retaining a dam, removal is more often considered a viable option. Deciding if and how to remove aging dams should be guided by lessons learned from previous studies that have examined the ecosystem effects of dam removal. This dynamic database organizes published scientific information relevant to dam...

Estimates of pathogen exposure predict varying transmission likelihood: Host contact and shedding patterns may clarify disease dynamics in desert tortoises Gopherus agassizii

Christina Aiello
These datasets (S1-S4) document the transmission of a bacterial pathogen (Mycoplasma agassizii) between desert tortoises (Gopherus agassizii). The desert tortoises were experimentally introduced in captivity and were used to create and compare models predicting transmission probability given data on the hosts and their interactions. Datasets S1 & S2 include variables describing the individual tortoises, e.g. id, sex, and variables describing the length of their interaction, e.g., number of days cohabitating, hours of direct contact. Two...

Mineral facilities of Latin America and the Caribbean

Michael S. Baker

Marine Geophysical Data -- Point Arena to Cape Mendocino

J.W. Beeson, S.Y. Johnson, C. Goldfinger & S.R. Hartwell
This data release includes marine geophysical data collected on three research cruises conducted in 2010 and 2012 between Point Arena and Cape Mendocino. The overall goal of this research is to better understand the northernmost section of the San Andreas Fault (SAF). In 2010, the USGS collected seismic-reflection profiles crossing the SAF at 1 km spacing from Point Arena to Fort Bragg (survey B-5-10-NC). Then, Oregon State University (OSU) and U.S. Geological Survey (USGS) jointly...

Dam Removal Science Database Citations

Daniel J Wieferich
This ScienceBase Item is a collection that contains the citation references used as a basis for the meta analysis in the Dam Removal Science Database. It started as the list of citations used in the Powell Center synthesis project and receives new citations discovered in ongoing algorithm-assisted mining of literature. Citations in the collection include items already in ScienceBase from other sources (e.g., USGS Publications Warehouse) as well as new citations that first originated with...

Chemicals of Emerging Concern in Water and Bottom Sediment in Great Lakes Tributaries, 2014 - Collection Methods, Analytical Methods, Quality Assurance Analyses, and Data

Sarah M. Elliott, Mark E. Brigham, Zachary G. Jorgenson, Heiko L. Schoenfuss, Kathy E. Lee, Steven J. Choy, Jeremy N. Moore, Sue K Langer, Michael A. Menheer, Molly M. McCool, William T. Foreman, Edward Furlong & Jo A. Banda
The U.S. Geological Survey (USGS), in cooperation with the U.S. Fish and Wildlife Service (USFWS) and St. Cloud State University (SCSU), identified the occurrence of contaminants of emerging concern (CECs) in water and bottom sediment collected in 2014 at 65 sites throughout the Great Lakes Basin. The 2014 effort is part of a long-term study that began in 2010. Included in this directory are collection methods, references to or descriptions of analytical methods used, data...

Mineral exploration sites of Latin America and the Caribbean

Michael S. Baker

Electrical power generating facilities of Latin America and the Caribbean

Michael S. Baker

Dam Removal Information Portal (DRIP)

Daniel J. Wieferich, Jeff Duda, Sky Bristol, Vivian B. Hutchison, Katherine M. Vittum, James R. Bellmore & Jonathan Warrick
The Dam Removal Information Portal (DRIP) is an online representation and visualization tool for the USGS Dam Removal Science Database, inspired by Bellmore et al. 2015 and now developed as a live data system in ScienceBase as part of the Biogeographic Information System. DRIP provides a map-based visualization of information of dam removals and associated scientific studies. The database was developed in cooperation with the NGO, American Rivers, who also provides data on other dam...

Developing Fish Trophic Interaction Indicators of Climate Change for the Great Lakes

Carey T. Knight Richard T. Kraus
This project addressed regional climate change effects on aquatic food webs in the Great Lakes. We sought insights by examining Lake Erie as a representative system with a high level of anthropogenic impacts, strong nutrient gradients, seasonal hypoxia, and spatial overlap of cold- and cool-water fish guilds. In Lake Erie and in large embayments throughout the Great Lakes basin, this situation is a concern for fishery managers, as climate change may exacerbate hypoxia and reduce...

Map 02 - ArcGIS layer showing contours of the mean of October water levels during the 2000?2009 water years (feet)

Scott T. Prinos & Joann F. Dixon
Statistical analyses and maps representing mean, high, and low water level conditions in the surface water levels and groundwater levels in Miami-Dade County were made to help inform decisions necessary for urban planning and development. Sixteen maps were created that show contours of (1) the mean of daily water levels at each site during October and May of the 2000-2009 water years, (2) the 25th, 50th, and 75th percentiles of the daily water level at...

Wave projections for United States mainland coasts

Li Erikson, Christie Hegermiller, Patrick Barnard & Curt D Storlazzi
Coastal managers and ocean engineers rely heavily on projected average and extreme wave conditions for planning and design purposes, but when working on a local or regional scale, are faced with much uncertainty as changes in the global climate impart spatially-varying trends. Future storm conditions are likely to evolve in a fashion that is unlike past conditions and is ultimately dependent on the complicated interaction between the Earth?s atmosphere and ocean systems. Despite a lack...

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