977 resultados para Water resources planning


Relevância:

100.00% 100.00%

Publicador:

Resumo:

United States federal agencies assess flood risk using Bulletin 17B procedures which assume annual maximum flood series are stationary. This represents a significant limitation of current flood frequency models as the flood distribution is thereby assumed to be unaffected by trends or periodicity of atmospheric/climatic variables and/or anthropogenic activities. The validity of this assumption is at the core of this thesis, which aims to improve understanding of the forms and potential causes of non-stationarity in flood series for moderately impaired watersheds in the Upper Midwest and Northeastern US. Prior studies investigated non-stationarity in flood series for unimpaired watersheds; however, as the majority of streams are located in areas of increasing human activity, relative and coupled impacts of natural and anthropogenic factors need to be considered such that non-stationary flood frequency models can be developed for flood risk forecasting over relevant planning horizons for large scale water resources planning and management.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

tWater use control methods and water resources planning are of high priority. In irrigated agriculture, theright way to save water is to increase water use efficiency through better management. The present workvalidates procedures and methodologies using remote sensing to determine the water availability in thesoil at each moment, giving the opportunity for the application of the water depth strictly necessaryto optimise crop growth (optimum irrigation timing and irrigation amount). The analysis is applied tothe Irrigation District of Divor, Évora, using 7 experimental plots, which are areas irrigated by centre-pivot systems, cultivated to maize. Data were determined from images of the cultivated surface obtainedby satellite and integrated with atmosphere and crop parameters to calculate biophysical indicatorsand indices of water stress in the vegetation—Normalized Difference Vegetation Index (NDVI), Kc, andKcb. Therefore, evapotranspiration (ETc) was estimated and used to calculate crop water requirement,together with the opportunity and the amount of irrigation water to allocate. Although remote sensingdata available from satellite imagery presented some practical constraints, the study could contribute tothe validation of a new methodology that can be used for irrigation management of a large irrigated area,easier and at lower costs than the traditional FAO recommended crop coefficients method. The remotesensing based methodology can also contribute to significant saves of irrigation water.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Water planning efforts typically identify problems and needs. But simply calling attention to issues is usually not enough to spur action; the end result of many well-intentioned planning efforts is a report that ends up gathering dust on a shelf. Vague recommendations like “Water conservation measures should be implemented” usually accomplish little by themselves as they don’t assign responsibility to anyone. Success is more likely when an implementation strategy — who can and should do what — is developed as part of the planning process. The more detailed and specific the implementation strategy, the greater the chance that something will actually be done. The question then becomes who has the legal authority or responsibility to do what? Are new laws and programs needed or can existing ones be used to implement the recommendations? ... This document is divided into four main parts. The first, “Carrots and Sticks” looks at two basic approaches — regulatory and non-regulatory — that can be, and are, used to carry out water policy. Both have advantages and disadvantages that need to be considered. The second, “The powers of federal, state and local governments…,” looks at the constitutional powers the federal government and state and local governments have to carry out water policy. An initial look at the U. S. Constitution might suggest the federal government’s regulatory authority over water is limited but, in fact, its powers are very substantial. States have considerable authority to do a number of things but have to be mindful of any federal efforts that might conflict with those state efforts. And local governments can only do those things the state constitution or state legislature says they can do and must conform to any requirements or limitations on those powers that are contained in the enabling acts. Parts three and four examine in more detail the main programs and agencies at the federal level as well as Iowa’s state and local levels and the roles they play in national and state water policy.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

This document looks at some of Iowa’s more comprehensive, statewide water planning efforts that addressed all aspects of water or a major water issue such as water quality.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Since 1978 when the Water Plan ’78 was published, there have been no truly comprehensive water planning efforts initiated. The ’85 Water Plan and the ’87 Groundwater Protection Strategy were significant efforts that resulted in real advancements in water resource protection but were not truly comprehensive in nature. Other efforts, such as the Section 208 (CWA) plans, the 2000 Nonpoint Source Management Plan, and various conservation and recreation planning efforts that involve various aspects of water have been completed but, like the ’85 Water Plan, were not comprehensive in nature.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

The following document serves two purposes. First, the Environmental Protection Agency (EPA) requires a state to develop an approved Non-point Source Management Plan (NPSMP or Plan) that encompasses the nine key elements, described in full in Appendix A, to be eligible for federal Clean Water Act Section 319 funding. Second, the Plan serves as a representation of Iowa’s vision, goals, objectives and potential action steps to reduce non-point source pollution and improve water quality over the next five to ten years. This plan is not intended to be, nor should it be, limited to the Department of Natural Resources or Iowa’s Section 319 Program, but rather reflects the collective efforts and intents of the core partners and stakeholder groups that worked together to develop the goals identified herein and programmatic means of achieving those goals.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Some parts are composed chiefly of statistical tables.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

The aim of this project is to evaluate the importance of submarine groundwater discharge sector in order to improve the water balance in Málaga-Granada region. The approach of this study arose from the the geology and the aquifers that indicate that there could be some discharge to the sea between Maro (Málaga) and Almuñécar (Granada) and the Andalusian’s Government and its Water Agence were really interested in evaluating it because there is a lot of population and few water available and the magnitude of groundwater discharge has generated controversy. Is well known that water is a scarce resource in this area and it’s very important for the society and for the environment. The legislation, the water policies, the knowledge of the aquifer and the geology, the water dynamics, the land use and the water perception in the society might help the management of this resource not just in Andalusia but in all the Mediterranean basin. The main objective is to evaluate the submarine groundwater discharge from the Alberquillas Aqufier to the sea by measuring 222Rn and Ra isotopes. Specific objectives have been established to achieve the main objective: A) Reveal the importance of water resources in the Mediterranean basin; B) Learn radiometric techniques for the study of groundwater discharge to the sea; C) Learn of sampling techniques of water samples for the measurement of Ra and Rn; D) Learn the techniques for measuring Ra (RaDeCC) and Rn (RAD7); E) Interpretation and discussion of results. During this semester, and in addition of the present study in Málaga- Granada region, the author has participated in the initial phase (sampling, analysis and interpretation of preliminary results) of other research projects focused on the study of submarine groundwater discharges through the use of Ra isotopes and 222Rn. These studies have been developed in different areas, including Alt Empordà (Roses and Sant Pere Pescador), Maresme with CMIMA’s group (Mediterranean Center for Marine and Environmental Research), Delta de l’Ebre, Peñíscola and Mallorca with the IMEDEA’s group (Mediterranean Institute for Advanced Studies).

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Investigative report produced by Iowa Citizens' Aide/Ombudsman

Relevância:

100.00% 100.00%

Publicador:

Resumo:

This report provides updates on the WPAC recommendations made in its 2013 legislative report, including actions taken on those recommendations and any follow-up recommendations from WPAC. Recommendations include documentation of activities, and the needs and challenges toward making progress in protecting Iowa’s water resources, identified by WPAC in coordination with all agencies and stakeholders in the management of the state’s water resources in a sustainable, fiscally responsible, and environmentally conscientious manner.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

This report provides updates on the WPAC recommendations made in its 2013 legislative report, including actions taken on those recommendations and any follow-up recommendations from WPAC. Recommendations include documentation of activities, and the needs and challenges toward making progress in protecting Iowa’s water resources, identified by WPAC in coordination with all agencies and stakeholders in the management of the state’s water resources in a sustainable, fiscally responsible, and environmentally conscientious manner.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

This report provides updates on the WPAC recommendations to legislature, including actions taken on those recommendations and any follow-up recommendations from WPAC. Recommendations include documentation of activities, and the needs and challenges toward making progress in protecting Iowa’s water resources, identified by WPAC in coordination with all agencies and stakeholders in the management of the state’s water resources in a sustainable, fiscally responsible, and environmentally conscientious manner.