The design of optimal water policies between farmers, municipalities, and groundwater-dependent ecosystems is analyzed in a hydro-economic model with physical interactions confined aquifer shallow having natural drainage. Based on the Pecos Basin case study, we analyze trajectories tables allocation users environment flows for ecosystems. We also explore consequences ecosystem when agency uses ...

Zhang Wen , Guanhua Huang *, Hongbin Zhan c a Department of Irrigation and Drainage, College of Water Conservancy and Civil Engineering, China Agricultural University, Beijing, 100083, PR China b Chinese–Israeli International Center for Research in Agriculture, China Agricultural University, Beijing, 100083, PR China c Department of Geology and Geophysics, Texas A&M University, College Station,...

Seawater intrusion caused by groundwater over-exploitation from coastal aquifers poses a severe problem in many regions. Formulation of proper pumping strategy using a simulation model can assure sustainable supply of fresh water from the coastal aquifers. The focus of the present study is on the development of a numerical model based on Meshfree (MFree) method to study the seawater intrusion p...

Groundwater ecosystems have a diverse and unique fauna, often dominated by Crustacea generally characterised short range endemics confined to single aquifers. Much of this knowledge has come from studies conducted either in fractured rock aquifers or alluvial Karstic subterranean environments are present the Cambrian Limestone Aquifer (CLA) Northern Territory, Australia, freshwater aquifer whic...

The Tamarack State Wildlife Area in eastern Colorado is being investigated as a possible managed recharge project to redirect flows in the South Platte River for water quantity management. Two primary surface water/groundwater interactions exist at Tamarack: (1) between the South Platte River and alluvial aquifer and (2) between backwater sloughs, or secondary river channels, and the alluvial a...

0309-1708/$ see front matter 2011 Elsevier Ltd. A doi:10.1016/j.advwatres.2011.06.006 ⇑ Corresponding author. Tel.: +1 334 844 6268; fax E-mail address: [email protected] (T.P. Clemen Climate change effects are expected to substantially raise the average sea level. It is widely assumed that this raise will have a severe adverse impact on saltwater intrusion processes in coastal aquifers. In th...

Flows of cells growing as a quasimonolayer in a confined space can exhibit streaming, with narrow streams of fast-moving cells flowing around clusters of slowly moving cells. We observed and analyzed this phenomenon experimentally for E. coli bacteria proliferating in a microfluidic cell trap using time-lapse microscopy. We also performed continuum modeling and discrete-element simulations to e...

The diffusion of a pulse of small grains in an horizontal rotating drum is studied through discrete elements methods simulations. We present a theoretical analysis of the diffusion process in a one-dimensional confined space in order to elucidate the effect of the confining end-plate of the drum. We then show that the diffusion is neither subdiffusive nor superdiffusive but normal. This is demo...

Chaetoceros dichaeta Ehrenberg is one of the most important planktonic diatom species in the Southern Ocean, making a significant contribution to the total biomass in the region. Our observations on both field and culture material have revealed the existence of a specialized form of C. dichaeta adapted to living in sea ice. This sea ice form differs from the planktonic form by the shape and ori...

We propose to make use of quantum entanglement for extracting holographic information about a remote 3-D object in a confined space which light enters, but from which it cannot escape. Light scattered from the object is detected in this confined space entirely without the benefit of spatial resolution. Quantum holography offers this possibility by virtue of the fourth-order quantum coherence in...