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Population Status and Population Genetics of Northern Leopard Frogs in Arizona
ISBN: 9781496058065 / Angielski / Miękka / 44 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Increasing isolation of populations by habitat fragmentation threatens the persistence of many species, both from stochastic loss of small isolated populations, and from inbreeding effects in populations that have become genetically isolated. In the southwestern United States, amphibian habitat is naturally patchy in occurrence because of the prevailing aridity of the region. Streams, rivers, and other wetlands are important both as habitat and as corridors that connect populations. However, populations of some species have become more fragmented and isolated by habitat degradation and loss....
Increasing isolation of populations by habitat fragmentation threatens the persistence of many species, both from stochastic loss of small isolated po...
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67,43 |
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Shallow Stratigraphy of the Skagit River Delta, Washington, Derived from Sediment Cores
ISBN: 9781496058126 / Angielski / Miękka / 130 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Sedimentologic analyses of 21 sediment cores, ranging from 0.4 to 9.6 m in length, reveal that the shallow geologic framework of the Skagit River Delta, western Washington, United States, has changed significantly since 1850. The cores collected from elevations of 3.94 to -2.41 m (relative to mean lower low water) along four cross-shore transects between the emergent marsh and delta front show relatively similar environmental changes across an area spanning 75 km2. Offshore of the present North Fork Skagit River and South Fork Skagit River mouths where river discharge is focused by diked...
Sedimentologic analyses of 21 sediment cores, ranging from 0.4 to 9.6 m in length, reveal that the shallow geologic framework of the Skagit River Delt...
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71,40 |
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Groundwater, Surface-Water, and Water-Chemistry Data, Black Mesa Area, Northeastern Arizona?2009?10
ISBN: 9781496058195 / Angielski / Miękka / 50 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The Navajo (N) aquifer is an extensive aquifer and the primary source of groundwater in the 5,400-square-mile Black Mesa area in northeastern Arizona. Availability of water is an important issue in northeastern Arizona because of continued water requirements for industrial and municipal use by a growing population and because of low precipitation in the arid climate of the Black Mesa area. Precipitation in the area is typically between 6 and 14 inches per year.
The Navajo (N) aquifer is an extensive aquifer and the primary source of groundwater in the 5,400-square-mile Black Mesa area in northeastern Arizona....
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71,40 |
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Geologic Map of Detrital, Hualapai, and Sacramento Valleys and Surrounding Areas, Northwest Arizona
ISBN: 9781496058362 / Angielski / Miękka / 48 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. A 1:250,000-scale geologic map and report covering the Detrital, Hualapai, and Sacramento valleys in northwest Arizona (fig. 1) is presented for the purpose of improving understanding of the geology and geohydrology of the basins beneath those valleys. The map was compiled from existing geologic mapping, augmented by digital photogeologic reconnaissance mapping. The most recent geologic map for the area, and the only digital one, is the 1:1,000,000-scale Geologic Map of Arizona (Richard and others, 2000). The larger scale map presented here includes significantly more detailed geology than...
A 1:250,000-scale geologic map and report covering the Detrital, Hualapai, and Sacramento valleys in northwest Arizona (fig. 1) is presented for the p...
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67,43 |
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Impact of Mine and Natural Sources of Mercury on Water, Sediment, and Biota in Harley Gulch Adjacent to the Abbott-Turkey Run Mine, Lake County, Calif
ISBN: 9781496058478 / Angielski / Miękka / 116 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The Cache Creek watershed covers 2,950 km squared within the central part of the California Coast Ranges, an area with numerous geological sources of mercury.
The Cache Creek watershed covers 2,950 km squared within the central part of the California Coast Ranges, an area with numerous geological sources of ...
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71,40 |
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Paleontology and Geochronology of the Long Beach Core Sites and Monitoring Wells, Long Beach, California
ISBN: 9781496058522 / Angielski / Miękka / 236 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The U.S. Geological Survey Focus on Quaternary Stratigraphy in Los Angeles (FOQUSLA) project was a cooperative coring program between Federal, State, and local agencies. It was designed to provide a better understanding of earthquake potentials and to develop a stratigraphic model of the western Los Angeles Basin in California. The biostratigraphic, geochronologic, and paleoecologic analyses of eight wells drilled during the FOQUS-LA project are presented. These analyses are based on microfossils (benthic and planktic foraminifers), macrofossils, paleomagnetic stratigraphy, optically...
The U.S. Geological Survey Focus on Quaternary Stratigraphy in Los Angeles (FOQUSLA) project was a cooperative coring program between Federal, State, ...
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71,40 |
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Simulation of Groundwater Flow in the Shallow Aquifer System of the Delmarva Peninsula, Maryland and Delaware
ISBN: 9781496058638 / Angielski / Miękka / 70 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Estimating future loadings of nitrogen to the Chesapeake Bay requires knowledge about the groundwater flow system and the traveltime of water and chemicals between recharge at the water table and the discharge to streams and directly to the bay. The Delmarva Peninsula has a relatively large proportion of its land devoted to agriculture and a large associated nitro-gen load in groundwater that has the potential to enter the bay in discharging groundwater.
Estimating future loadings of nitrogen to the Chesapeake Bay requires knowledge about the groundwater flow system and the traveltime of water and chem...
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67,43 |
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Simulation of Groundwater Flow in the "1,500-foot" Sand and "2,000-foot" Sand and Movement of Saltwater in the "2,000-foot" Sand of the Baton Rouge Ar
ISBN: 9781496058683 / Angielski / Miękka / 88 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Fresh groundwater is a valuable resource in the southeastern Louisiana and the five-parish Baton Rouge capital area, which includes East and West Baton Rouge, Point Coupee, and East and West Feliciana Parishes.
Fresh groundwater is a valuable resource in the southeastern Louisiana and the five-parish Baton Rouge capital area, which includes East and West Bato...
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67,43 |
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Flood of June 26?29, 2006, Mohawk, Delaware, and Susquehanna River Basins, New York
ISBN: 9781496058966 / Angielski / Miękka / 114 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. A stalled frontal system caused tropical moisture to be funneled northward into New York, causing severe flooding in the Mohawk, Delaware, and Susquehanna River basins during June 26-29, 2006. Rainfall totals for this multi-day event ranged from 2 to 3 inches to greater than 13 inches in southern New York.
A stalled frontal system caused tropical moisture to be funneled northward into New York, causing severe flooding in the Mohawk, Delaware, and Susqueh...
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71,40 |
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Toxicity, Sublethal Effects, and Potential Modes of Action of Select Fungicides on Freshwater Fish and Invertebrates
ISBN: 9781496071965 / Angielski / Miękka / 52 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Despite decades of agricultural and urban use of fungicides and widespread detection of these pesticides in surface waters, relatively few data are available on the effects of fungicides on fish and invertebrates in the aquatic environment. Nine fungicides are reviewed in this report: azoxystrobin, boscalid, chlorothalonil, fludioxonil, myclobutanil, fenarimol, pyraclostrobin, pyrimethanil, and zoxamide. These fungicides were identified as emerging chemicals of concern because of their high or increasing global use rates, detection frequency in surface waters, or likely persistence in the...
Despite decades of agricultural and urban use of fungicides and widespread detection of these pesticides in surface waters, relatively few data are av...
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67,43 |
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The Role of the U.S. Geological Survey in Lake Michigan Diversion Accounting in Illinois, 1984?2010
ISBN: 9781496072184 / Angielski / Miękka / 82 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The State of Illinois' annual withdrawl from Lake Michigan is limited by a U.S. Supreme Court decree. The U.S. Geological Survey (USGS) is responsible for monitoring flows in the Chicago area waterway system (CAWS) as part of the Lake Michigan Diversion Accounting (LMDA) overseen by the U.S. Army Corps of Engineers, Chicago District. Every five years, the USGS streamgage practices in the CAWS are reviewed by a committee of practicing engineers and academics to ensure that the best engineering practices are implemented in accordance with the U.S. Supreme Court decree and as part of LMDA. This...
The State of Illinois' annual withdrawl from Lake Michigan is limited by a U.S. Supreme Court decree. The U.S. Geological Survey (USGS) is responsible...
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67,43 |
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Monitoring of Stage and Velocity, for Computation of Discharge in the Summit Conduit near Summit, Illinois, 2010?2012
ISBN: 9781496072207 / Angielski / Miękka / 52 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Lake Michigan diversion accounting is the process used by the U. S. Army Corps of Engineers to quantify the amount of water that is diverted from the Lake Michigan watershed into the Illinois and Mississippi River Basins. A network of streamgages within the Chicago area waterway system monitor tributary river flows and the major river flow on the Chicago Sanitary and Ship Canal near Lemont as one of the instrumental tools used for Lake Michigan diversion accounting. The mean annual discharges recorded by these streamgages are used as additions or deductions to the mean annual discharge...
Lake Michigan diversion accounting is the process used by the U. S. Army Corps of Engineers to quantify the amount of water that is diverted from the ...
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67,43 |
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Monitoring Storm Tide and Flooding from Hurricane Isaac along the Gulf Coast of the United States, August 2012
ISBN: 9781496072313 / Angielski / Miękka / 28 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The U.S. Geological Survey (USGS) deployed a temporary monitoring network of water-level and barometric pressure sensors at 127 locations along the gulf coast from Alabama to Louisiana to record the timing, areal extent, and magnitude of hurricane storm tide and coastal flooding generated by Hurricane Isaac (fig. 1). This deployment was undertaken as part of a coordinated federal emergency response as outlined by the Stafford Act under a directed mission assignment by the Federal Emergency Management Agency. Storm tide, as defined by National Oceanic and Atmospheric Administration (NOAA;...
The U.S. Geological Survey (USGS) deployed a temporary monitoring network of water-level and barometric pressure sensors at 127 locations along the gu...
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67,43 |
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Hydraulic and Geomorphic Assessment of the Merced River and Historic Bridges in Eastern Yosemite Valley, Yosemite National Park, California
ISBN: 9781496072412 / Angielski / Miękka / 90 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The Merced River in the popular and picturesque eastern-most part of Yosemite Valley in Yosemite National Park, California, USA, has been extensively altered since the park was first conceived in 1864. Historical human trampling of streambanks has been suggested as the cause of substantial increases in stream width, and the construction of undersized stone bridges in the 1920s has been suggested as the major factor leading to an increase in overbank flooding due to deposition of bars and islands between the bridges.
The Merced River in the popular and picturesque eastern-most part of Yosemite Valley in Yosemite National Park, California, USA, has been extensively ...
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67,43 |
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Groundwater Quality in the Mohawk River Basin, New York, 2011
ISBN: 9781496081599 / Angielski / Miękka / 50 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Water samples were collected from 21 production and domestic wells in the Mohawk River Basin in New York in July 2011 to characterize groundwater quality in the basin. The samples were collected and processed using standard U.S. Geological Survey procedures and were analyzed for 148 physiochemical properties and constituents, including dissolved gases, major ions, nutrients, trace elements, pesticides, volatile organic compounds (VOCs), radionuclides, and indicator bacteria.
Water samples were collected from 21 production and domestic wells in the Mohawk River Basin in New York in July 2011 to characterize groundwater qual...
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67,43 |
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Water Quality in the Anacostia River, Maryland and Rock Creek, Washington, D.C.: Continuous and Discrete Monitoring with Simulations to Estimate Conce
ISBN: 9781496081650 / Angielski / Miękka / 44 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Concentrations and loading estimates for nutrients, suspended sediment, and E.coli bacteria were summarized for three water-quality monitoring stations on the Anacostia River in Maryland and one station on Rock Creek in Washington, D.C. Both streams are tributaries to the Potomac River in the Washington, D.C. metropolitan area and contribute to the Chesapeake Bay estuary. Two stations on the Anacostia River, Northeast Branch at Riverdale, Maryland and Northwest Branch near Hyattsville, Maryland, have been monitored for water quality during the study period from 2003 to 2011 and are located...
Concentrations and loading estimates for nutrients, suspended sediment, and E.coli bacteria were summarized for three water-quality monitoring station...
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67,43 |
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Monitoring Storm Tide and Flooding from Hurricane Sandy along the Atlantic Coast of the United States, October 2012
ISBN: 9781496081742 / Angielski / Miękka / 46 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The U.S. Geological Survey (USGS) deployed a temporary monitoring network of water-level and barometric pressure sensors at 224 locations along the Atlantic coast from Virginia to Maine to continuously record the timing, areal extent, and magnitude of hurricane storm tide and coastal flooding generated by Hurricane Sandy (fig. 1). These records were greatly supplemented by an extensive post-flood high-water mark (HWM) flagging and surveying campaign from November to December 2012 involving more than 950 HWMs. Both efforts were undertaken as part of a coor dinated federal emergency response as...
The U.S. Geological Survey (USGS) deployed a temporary monitoring network of water-level and barometric pressure sensors at 224 locations along the At...
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67,43 |
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Total Nutrient and Sediment Loads, Trends, Yields, and Nontidal Water-Quality Indicators for Selected Nontidal Stations, Chesapeake Bay Watershed, 198
ISBN: 9781496082022 / Angielski / Miękka / 56 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The U.S. Geological Survey, in corporation with Chesapeake Bay Program partners, rottenly reports long-term concentration trends and monthly annual constituent loads for stream water-quality monitoring stations across the Chesapeake Bay Watershed.
The U.S. Geological Survey, in corporation with Chesapeake Bay Program partners, rottenly reports long-term concentration trends and monthly annual co...
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67,43 |
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Five-Year Interim Report of the United States ? Mexico Transboundary Aquifer Assessment Program: 2007 ? 2012
ISBN: 9781496082152 / Angielski / Miękka / 36 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Transboundary aquifers are an essential, and in many cases, singular source of water for United States-Mexico border communities, particularly in arid regions. Declining water levels, deteriorating water quality, and increasing use of groundwater resources by municipal, industrial and agricultural water users on both sides of the international border have raised concerns about the long-term availability of this supply.
Transboundary aquifers are an essential, and in many cases, singular source of water for United States-Mexico border communities, particularly in arid...
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67,43 |
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Ecosystem Services Derived from Wetland Conservation Practices in the United States Prairie Pothole Region with an Emphasis on the U.S. Department of
ISBN: 9781496082862 / Angielski / Miękka / 70 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Conservation programs administered by the U.S. Department of Agriculture (USDA) have significantly influenced landscape conditions in the Prairie Pothole Region of the United States. Approximately 2,200,000 ha (5,436,200 acres) in the Prairie Pothole Region are enrolled in either the Conservation Reserve Program (CRP) or Wetlands Reserve Program (WRP). The ecosystem services provided by lands in these programs are diverse, ranging from improvements in local and broad-scale environmental conditions, such as air and water quality, and reduction of hazard risks, such as floodwater storage, to an...
Conservation programs administered by the U.S. Department of Agriculture (USDA) have significantly influenced landscape conditions in the Prairie Poth...
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cena:
67,43 |
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