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1,431 full-text articles. Page 57 of 57.

Modeling Groundwater Levels In The Northern High Plains Of Texas, Jairo Hernandez, Prasanna Gowda, Lal Almas, Thomas Marek, Terry Howell, Wonsook Ha 2010 Boise State University

Modeling Groundwater Levels In The Northern High Plains Of Texas, Jairo Hernandez, Prasanna Gowda, Lal Almas, Thomas Marek, Terry Howell, Wonsook Ha

Jairo E. Hernández

Future changes in groundwater policy and the use of alternative technologies will have to be adopted for the Northern High Plains due to the depleting underlying Ogallalaaquifer, a major source of water for irrigation. The objectives of this study were to (1) calibrate and validate an integrated regional groundwater model using 1939-2008 observed water level data and (2) evaluate five agricultural management policyscenarios for four, heavily irrigated counties (Dallam, Sherman, Hartley, and Moorecounties) located in the northwest corner of the Texas Panhandle. For this purpose, the study area was divided into 1000-m cells and the MODFLOW-2000 model wascalibrated and validated ...


Sustainable Portland: Implementation Series 3, New England Environmental Finance Center 2010 University of Southern Maine

Sustainable Portland: Implementation Series 3, New England Environmental Finance Center

Climate Change

This report is the third in a series of efforts by students at the Muskie School of Public Service, Community Planning and Development Master’s program, in a core class called “Sustainable Communities.” In this course students seek to understand principles of sustainability and how efforts to implement Sustainability programs can become more successful. The report assembles term papers students completed on particular efforts by municipalities, universities, and other groups to achieve sustainability goals. Students worked on each project in a service learning format with real world clients. They were asked to fashion their papers around lessons learned by other ...


Stepping Up The Secondary: Impacts Of Increasingly Stringent Treated Wastewater Ammonia Discharge Limits On Small Montana Communities, LeAnn Books 2010 Carroll College, Helena, MT

Stepping Up The Secondary: Impacts Of Increasingly Stringent Treated Wastewater Ammonia Discharge Limits On Small Montana Communities, Leann Books

Mathematics, Engineering and Computer Science Undergraduate Theses

The question of waste disposal has always been an inherent problem of urbanized environments. The passage of the Federal Water Pollution Control Act, specifically the 1972 Amendments known as the Clean Water Act (CWA), legislated secondary treatment of all municipal wastewater and provided funds to construct or upgrade facilities. Since the passage of the CWA and the implementation of secondary wastewater treatment facilities, the federal Environmental Protection Agency (EPA) and the Montana Department of Environmental Quality (MDEQ) have developed and enforced increasingly stringent effluent limitations to protect surface waters and human health. Today small Montana communities face a critical juncture ...


Agenda: Us-Mexico Negotiations On Improved Colorado River Management: An Update, University of Colorado Boulder. Natural Resources Law Center, Western Water Policy Program, Colorado Water Conservation Board 2010 University of Colorado Law School

Agenda: Us-Mexico Negotiations On Improved Colorado River Management: An Update, University Of Colorado Boulder. Natural Resources Law Center, Western Water Policy Program, Colorado Water Conservation Board

US-Mexico Negotiations on Improved Colorado River Management: An Update (February 19)

The United States and Mexico are currently negotiating an international accord on a variety of Colorado River water matters, including the prospects for new water projects, conservation efforts, and operational improvements. Participants are invited to hear an update on these efforts from individuals directly involved in the negotiations, including Mario López Pérez, Engineering and Technical Standards Manager in the National Water Commission of México, who is responsible for binational water issues with the USA, Guatemala and Belize.


Colorado River Water: Mexico's Perspective On The Ongoing Negotiations, Mario López Pérez 2010 University of Colorado Law School

Colorado River Water: Mexico's Perspective On The Ongoing Negotiations, Mario López Pérez

US-Mexico Negotiations on Improved Colorado River Management: An Update (February 19)

Presenter: Mario López, Engineering and Technical Standards Manager, National Water Commission of México

53 slides


The Challenges Of Wastewater Irrigation In Developing Countries, M. Qadir, D. Wichelns, L. Raschid-Sally, Peter G. McCornick, P. Drechsel, A. Bahri, P. S. Minhas 2010 International Center for Agricultural Research in the Dry Areas

The Challenges Of Wastewater Irrigation In Developing Countries, M. Qadir, D. Wichelns, L. Raschid-Sally, Peter G. Mccornick, P. Drechsel, A. Bahri, P. S. Minhas

Water for Food Faculty Publications

The volume of wastewater generated by domestic, industrial, and commercial sources has increased with population, urbanization, improved living conditions, and economic development. The productive use of wastewater has also increased, as millions of small-scale farmers in urban and peri-urban areas of developing countries depend on wastewater or wastewater-polluted water sources to irrigate high-value edible crops for urban markets, often as they have no alternative sources of irrigation water. Undesirable constituents in wastewater can harm human health and the environment. Hence, wastewater irrigation is an issue of concern to public agencies responsible for maintaining public health and environmental quality. For diverse ...


Challenges And Prospects Of Sustainable Groundwater Management In The Indus Basin, Pakistan, Asad Sarwar Qureshi, Peter G. McCornick, A. Sarwar, Bharat R. Sharma 2010 International Water Management Institute

Challenges And Prospects Of Sustainable Groundwater Management In The Indus Basin, Pakistan, Asad Sarwar Qureshi, Peter G. Mccornick, A. Sarwar, Bharat R. Sharma

Water for Food Faculty Publications

In Pakistan, on-demand availability of groundwater has transformed the concept of low and uncertain crop yields into more assured crop production. Increased crop yields have resulted in food security and improved rural livelihoods. However, this growth has also led to problems of overdraft, falling water tables, and degradation of groundwater quality, and yields generally remain well below potential levels. Over the last three decades, Pakistan has tried several direct and indirect management strategies for groundwater management. However the success has been limited. This paper argues that techno-institutional approaches such as introducing water rights, direct or indirect pricing, and permit systems ...


Downscaling Surface Temperature Images With Tsharp, Wonsook Ha, Prasanna Gowda, Terry Howell, George Paul, Jairo Hernandez, Sukantu Basu 2009 Boise State University

Downscaling Surface Temperature Images With Tsharp, Wonsook Ha, Prasanna Gowda, Terry Howell, George Paul, Jairo Hernandez, Sukantu Basu

Jairo E. Hernández

Daily evapotranspiration (ET) maps would significantly improve assessing crop water requirements, especially in the Texas High Plains (THP) where the supply of irrigation water is limited. Evapotranspireation maps derived from satellite data with daily coverage such as MODIS (Moderate Resolution Imaging Spectroradiometer) and GOES (Geostationary Operational Environmental Satellite) sensors are inadequate, because their thermal pixel size is larger than individual agricultural fields. However, there exists an opportunity to use simultaneously acquired high resolution visible, near-infrared, and shortwave-infrared images from MODIS, and thermal-infrared images from other high resolutions sensors such as LANDSAT 5 (Land Remote-Sensing Satellite) Thematic Mapper (TM) or ASTER ...


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