Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Wendy Marie Robertson"'
Autor:
Wendy Marie Robertson
Publikováno v:
Journal of Geoscience Education. 70:161-175
Publikováno v:
Journal of Hydrology. 570:850-862
Aridland springs maintain groundwater-dependent habitats for aquatic and terrestrial species. San Solomon Spring (Texas, USA) is part of a regional karst spring complex in the Chihuahuan Desert that supports several species of federal and state conse
Publikováno v:
Journal of Geoscience Education. 66:25-35
A clear understanding of climate change and its impacts on society is an integral component of scientific literacy today. However, college students in introductory and lower division science course...
Publikováno v:
Hydrological Processes. 31:2349-2364
Quantifying the effects of anthropogenic processes on groundwater in arid regions can be complicated by thick unsaturated zones with long transit times. Human activities can alter water and nutrient fluxes, but their impact on groundwater is not alwa
Publikováno v:
Environmental Earth Sciences. 77
Emerald ash borer (EAB) (Agrilus planipennis Fairmaire), an invasive forest insect first identified in southeastern Michigan in 2002, is established in at least 32 US states and three Canadian provinces. Ash (Fraxinus spp.) mortality rates in some fo
Autor:
Wendy Marie Robertson, John M. Sharp
Publikováno v:
Journal of Hydrology. 522:211-227
Summary Human impacts on land use and vegetation in arid basins have, in some regions, altered infiltration, recharge, and groundwater chemistry. However, some modeling approaches currently used do not account for these effects. In the Trans-Pecos re
Autor:
John M. Sharp, Wendy Marie Robertson
Publikováno v:
Hydrogeology Journal. 21:1853-1864
Methods of estimating recharge in arid basin aquifers (such as the 1 % rule, Maxey-Eakin method, storm-runoff infiltration and others) overlook the potential contribution of direct recharge on the basin floors. In the Trans-Pecos region of west Texas
Autor:
Samuel A. Flewelling, Wendy Marie Robertson, George M. Hornberger, Janet S. Herman, Aaron L. Mills
Publikováno v:
Hydrological Processes. 28:2150-2158
Evapotranspiration (ET) can cause diel fluctuations in the elevation of the water table and the stage in adjacent streams. The diel fluctuations of water levels change head gradients throughout the day, causing specific discharge through near-stream
Autor:
Wendy Marie Robertson, John M. Sharp
Publikováno v:
Environmental Earth Sciences. 69:2415-2426
In groundwater of the Trans-Pecos region of West Texas, unexpectedly high levels of nitrate (NO3−) are documented in four basins: Red Light Draw, Eagle Flats, Wild Horse and Michigan Flats, and Lobo and Ryan Flats. NO3− concentrations are changin