Water resources statistics

This study applied principal components analysis (PCA) and cluster analysis (CA) to assess water quality and recommend sites and water parameters for water quality monitoring at Bung Binh Thien reservoir, An Giang province, Vietnam based on 11 water samples collected in the dry season.

10p viohoyo 25-04-2024 3 2   Download

Part 1 book "Water resource systems planning - An introduction to methods, models, and applications" includes content: Water resources planning and management - an overview; water resource systems modeling - its role in planning and management; models for identifying and evaluating alternatives; an introduction to optimization models and methods; data-fitting, evolutionary, and qualitative modeling; an introduction to probability, statistics, and uncertainty.

315p muasambanhan06 01-02-2024 3 0   Download

This article presents the contents related to water resource inventory in some countries and the current status of national water resource inventory activities in order to provide a system inventory criteria and methodology to be used in the inventory of water resources in future development.

9p viironman 02-06-2023 4 3   Download

In water resource management the main basic requirement is the estimation of runoff resulted from precipitation. In present study, runoff from Chaskaman catchment estimated using different empirical methods such as Inglis and DeSouza formula, Khosla’s formula, Coutagine relationship, Department of irrigation India, and Strange’s table method. Hydrological data such as observed daily runoff of 15 years (2000-2014) was collected from Superintending Engineer, Department of Irrigation, Government of Maharashtra, Pune.

5p angicungduoc4 26-04-2020 15 1   Download

Hydrological modelling is a powerful technique of hydrologic system investigation for both the research hydrologists and the practicing water resources engineers involved in the planning and development of integrated approach for management of water resources. In present study, the observed rainfall and runoff data of 2010, 2011, 2013 and 2014years were used as input data. In ANN, input data was divided in 70 per cent, 15 per cent and 15 per cent for training, testing and validation purpose, respectively.

7p nguathienthan2 19-12-2019 23 0   Download

The primary need of water resource development in any area depends on estimation of rainfall at different probabilities for efficient planning and design of irrigation and drainage systems, command area development, soil and water conservation programmes and the optimum utilization of water resources in various agricultural production systems. The annual maximum daily rainfall data of 18 years (1991 to 2008) was obtained from ARS, Mulde. It was analyzed for maximum one day and extended days (up to 6 day) rainfall for Mulde.

7p cothumenhmong1 11-12-2019 20 0   Download

The origin and chemistry of the groundwater in the middle Pleistocene (qp2 3 ), lower Pleistocene (qp1 ), upper Pliocene (n2 2 ), lower Pliocene (n2 1 ), and the Miocene (n1 3 ) in the Mekong river delta (MKRD) were investigated by using isotopic and geochemical techniques. The origin of the groundwater was evaluated based on the composition of the water stable isotopes (d2 H and d18O) in the local precipitation, in water from the rivers system, and in the groundwater samples.

11p caygaocaolon1 13-11-2019 11 0   Download

In the year of grace 1758 there were two families living on that island which we of to-day call Mount Desert; but Champlain named Mons Deserts, because its thirteen high, rugged mountains could be seen from the seaward a distance of twenty leagues, making it the first landmark of the coast for seamen.

53p nhokheo9 03-05-2013 67 4   Download

The landmass on which we live is an integral part of our water catchment. Any human activity will inevitably have some consequences on the availability and composition of fresh waters. These consequences are becoming increasingly important and detectable as the human population grows. The problem is to be addressed at the global scale, as frequently, decisions made have inter-regional and international impacts, and must therefore be coordinated. In a number of European Member States, for example, the availability of water resources depends on the activities of other upstream countries.

0p phoebe75 01-02-2013 46 3   Download

Climate change is a long-term shift in the statistics of the weather (including its averages). For example, it could show up as a change in climate normalcy (expected average values for temperature and precipitation) for a given place and time of year, from one decade to the next. We know that the global climate is currently changing. The last decade of the 20th Century and the beginning of the 21st have been the warmest periods in the entire global instrumental temperature record, starting in the mid-19th century.

522p dontetvui 21-01-2013 67 8   Download

This paper presents an analysis of the benefits of climate change adaptation from small and medium scale hydropower plants in Lao Cai Province. Lao Cai is a mountainous province with high hydropower potential. Totally 116 small and medium hydropower projects in different stages of development have been identified with installed capacities ranging from 0.9 MW to 60 MW. Based on the results of statistic downscaling, four climate change scenarios were developed for the Lao Cai province area.

9p dem_thanh 22-12-2012 58 3   Download

There are three problems with the above set of reasonings. First, conventional indices of the standard of living pertain to commodity production, not to the natural-resource base onwhich production depends. Statistics on pastmovements ofworld (or regional) income and agricultural production say nothing about this base. They don’t say if increases in GNP per head in a country aren’t being realized by means of a depletion of natural capital (e.g., ecosystem functioning). It could be, for example, that increases in agricultural production are in part accomplished by "mining" soil and water.

71p thankinhphanliet 21-12-2012 40 4   Download

With the evaluation method is scientific and has been tested as: methods speculation, rapid assessment methods, research methods analyze the physical environment (water, air), statistical methods,comparison methods, ... to make reliable assessments as a basis for consultation measures to reduce environmental pollution both during construction and operation of the project.

76p rose_12 03-12-2012 46 5   Download

Every year, the damages, caused by the natural disasters such as heavy rainfalls, floods and doughts ..., take lives and destroy properties in many parts of the world. In water resources engineering, frequency analysis is one of the statistical techniques applied by hydrologists to try and estimate the probabilities associated with design events.

0p haivan 16-03-2009 201 26   Download