Reference

The United States Air Traffic Control (ATC) system is designed to provide for the safe and efficient flow of air traffic from origin to destination. The Federal Aviation Administration predicts that...

Tongass National Forest (NF) is in Southeast Alaska, a region rich in natural and cultural resources, which is currently undergoing significant economic change. This study examines how the existing...

This report presents the data used to assess geomorphic adjustment of streams over time and to changing land-use conditions. Thirty-seven U.S. Geological Survey streamgages were selected within the...

Mortalities of young-of-the-year (YOY) smallmouth bass (Micropterus dolomieu) recently have occurred in the Susque-hanna River due to Flavobacterium columnare, a bacterium that typically infects...

The purpose of this study was to receive customer feed-back and to understand data and information requirements for The National Map (U.S. Geological Survey, 2009). This report provides results and...

The laboratory for analysis of low-iconic-strength water ate the U.S. Geological Survey Water Science Center in Troy, N.Y., analyzes samples collected by USGS projects throughout the Northeast. The...

The laboratory for analysis of low-ionic-strength water at the U.S. Geological Survey (USGS) Water Science Center in Troy, N.Y., analyzes samples collected by USGS projects throughout the Northeast...

The U.S. Geological Survey has been working cooperatively with the Albany Water, Gas, and Light Commission to monitor groundwater quality and availability since 1977. This reports presents an...

This report presents and evaluates 64 major-elements analyses of previously unanalyzed Kilauea Iki drill core, plus three samples from the 1959 and 1960 eruptions of Kilauea, obtained by X-ray...

Wastewater-treatment plant-effluents are a demonstrated sources of pharmaceuticals to the environment. During 2004-09, a study was conducted to identify pharmaceutical compounds in effluents from...

This descriptive model for magmatic iron-titanium-oxide (Fe-Ti-oxide) deposits hosted by Proterozoic age massif-type anorthosite and related rock types presents their geological, mineralogical,...

To evaluate the treatment efficiency of a stormwaterfiltration device (SFD) for potential use at Wisconsin Department of Transportation (WisDOT) park-and-ride facilities, a SFD was installed at an...

Beginning in the late 1990's, the U.S. Geological Survey began to develop analytical methods to detect, at concentrations less than 1 microgram per liter (μg/L), emerging water contaminants such as...

A study of road-deicing chloride (Cl) concentrations and loads was conducted at three streams in Chittenden County, VT, from November 2005 to 2007. This study was done by the U.S. Geological Survey,...

Assessment of groundwater-flow conditions in the vicinity of production wells in karst and fractured-rock settings commonly is difficult due in part to the lack of detailed hydrogeologic information...

An assessment of energetic compounds (explosive and propellant residues) and associated semi-volatile organic compounds (SVOCs) and trace elements in streambed sediment and stream water from streams...

Water chemistry, periphyton and seston chlorophyll a (CHLa), and biological community data were collected from 321 sites from 2001 through 2005 to (1) determine statistically and ecologically...

The concept that a river has a natural flow regime upon which its ecological integrity depends has been firmly established (Poff and others, 1997). Historically, streamflow standards have been based...

The U.S. Geological Survey, in cooperation with the Missouri Department of Natural Resources, collects data pertaining to the surface-water resources of Missouri. These data are collected as part of...

The U.S. Geological Survey (USGS) investigated the natural attenuation of subsurface petroleum hydrocarbons leaked over an unknown number of years from an oil pipeline under the Enbridge Energy...

Trends were determined in flow-adjusted values of selected water-quality characteristics measured year-round during water years 1998-2007 (October 1, 1997, through September 30, 2007) at 70 stations...

In recent years, we have seen increasing emphasis on the importance of ensuring that children with disabilities have the same opportunities as other children to receive an education and...

In 2012, the number of international tourist arrivals worldwide was projected to reach a new high of 1 billion arrivals, a 48% increase from 674 million arrivals in 2000. International travel also is...

The Joint Task Force on Safety and Security Certification, established between the Federal Transit Administration (FTA) and the American Public Transportation Association (APTA), prepared this...

This report describes research conducted to examine the application of sandwich structure technology to provide protection against the threat of an indenter striking the side or shell of a tank car...

Blue flag protection in the railroad industry provides safety to workers from the inadvertent movement of equipment on which they are working. Current Federal regulations provide minimum...

This report presents the results of a cognitive task analysis (CTA) that examined the cognitive and collaborative demands placed on conductors, as well as the knowledge and skills that experienced...

This research, conducted from October 2008 to February 2010, assesses the potential safety benefits provided by the safety improvements at private highway-rail grade crossings in North Carolina along...

This summary report highlights EPA's most recent evaluation of the status and trends in our nation's air quality.Author: U S Environmental Protection AgencyPublisher: Createspace Independent...

U. S. Railroad operations are undergoing rapid changes involving the introduction of new technologies such as positive train control (PTC), energy management systems (EMS), and electronically...