Flood frequency

In recent decades, the frequency of flooding is increasing with the change of global climate. Flooding has become one of the major abiotic stresses that seriously affect growth and development of plants. Triarrhena sacchariflora Nakai has been considered a promising energy crop for utilization in ethanol production.

15p vihagrid 30-01-2023 4 3   Download

The flood damage depends on the flood occurrence frequency and vulnerability of assets. Their vulnerability is characterized by fragility curves. Therefore, it is necessary to develop the fragility curves to estimate the damage of flood events. The fragility curves are often derived from experience of experts or the field survey data of historical flood events.

3p vipagani 20-10-2022 3 1   Download

(BQ) Ebook Engineering hydrology (Third edition): Part 1 is presented in four chapters. The characteristics of flood hydrographs and the unit hydrograph theory together with an introduction to instantaneous unit hydrograph are covered insufficient detail with numerous worked examples in Chap. 6. Floods, a topic of considerable importance, constitute the subject matter of Chap. 7 and 8. While in Chap. 7 the flood-peak estimation and frequency studies are described in detail, Chap. 8 deals with the aspects of flood routing, flood control and forecasting.

240p runordie6 10-08-2022 16 3   Download

In Odisha the Mahanadi is the largest river with an extensive delta responsible for most of the devastating flood hazards in the coastal zone. Over a period of 146 years between 1855 and 2000 there were 28 high flood years, 57 medium flood years and 48 low flood years (Mishra, 2008). There is a need to study the peak flood magnitude at different probability of exceedences by different probability distribution functions.

14p trinhthamhodang1215 23-09-2020 7 2   Download

This paper presents the results of the flood frequency analysis of Meenachil river basin in Kerala using Gumbels extreme value distribution. The analysis used 34 years of data (1985-2018) to model the annual maximum discharge. The flood peak values of return period 2, 10, 50 and 100 year were computed and further extrapolation could be done to find out the flood discharge of any return period.

7p nguaconbaynhay7 15-08-2020 12 1   Download

The knowledge of probable maximum one day rainfall for a given region corresponding to return periods varying from 2 to 100 years is essential for crop planning and designs of minor and major hydraulic structures. The probability analysis for maximum one day rainfall of Khurda region is done by different probability distribution methods (log normal 3-parameter, pearson method, log pearson, weibull, generalized pare to distribution and log normal) by taking the rainfall data of 25 years(1991-2015) through FLOOD - frequency analysis software.

13p caygaocaolon6 30-07-2020 16 1   Download

Remote sensing has several advantages in the field of agronomical research purpose. The assessment of agricultural crop canopies has provided valuable insights in the agronomic parameters. Remote sensing play a significant role in crop classification, crop monitoring and yield assessment. The use of remote sensing is necessary in the field of agronomical research purpose because they are highly vulnerable to variation in soil, climate and other physico- chemical changes.

14p nguaconbaynhay1 04-12-2019 27 2   Download

Viet Nam is considered as one of the countries most affected by climate change. The magnitude and frequency of extreme events (such as high-intensity rainfall, flooding, severe droughts) are expected to increase in future due to climate change.

9p vithomasedison2711 20-08-2019 30 0   Download

This article presents a set of inundation maps corresponding to flood frequencies of 1%, 2%, 5%, 10%, 20% in the Gianh river basin. The results show that flooding happens more frequent in both river banks and downstream areas of Gianh river basin. As Gianh River runs mainly along Tuyen Hoa District, the communes along the river banks of the district are seriously affected by floods.

8p vithomasedison2711 20-08-2019 5 0   Download

Methods known as regional flood frequency analyses have often been used for providing records to be gathered and for determining different quantiles of flood in basins having an adequate runoff gauging station (RS) or no gauge.

9p masterbarista 14-01-2019 20 1   Download

The Central Coast suffers from severe natural conditions, impacted by various natural calamities and disasters. For the past few years, it has been one of the areas that are most influenced by climate change, storms, floods and the sea level rise, which cause negative impacts on local people’s life and socio-economic development.

15p thanos1 17-05-2018 55 2   Download

Rainfall intensity, duration and frequency of 24 consecutive hours or longer (48h, 72h, 96h) are very essential for the assessment of flood risk and the design of the reservoirs and dams in Huong Khe district, Ha Tinh province.

12p truongtien_09 10-04-2018 37 1   Download

Given that the adverse affects of climate change on agriculture are expected to burden poor countries disproportionately, and their rural poor in particular, Bolivia is especially vulnerable as it is the poorest country in South America with at least 70% of the rural population living in poverty and more than a third of rural Bolivians living in extreme poverty. Those citizens who have been displaced by natural disasters in rural areas often remain at risk in urban areas as shantytowns and slums are frequently situated on land prone to flooding or landslide.

96p doiroimavanchuadc 19-02-2013 52 6   Download

In flood-prone cities such as Manila, potential sea level rise and increased frequency and inten- sity of extreme weather events poses enormous challenges on urban local bodies’ ability to adapt. Apart from their location, the scale of risk is also influenced by the quality of housing and infra- structure, institutional capacity with respect to emergency services, and the city’s preparedness to respond.

41p bi_ve_sau 17-01-2013 39 2   Download

In recent years, under impacts of human activities and climate change, flood has been increased in both the frequency and magnitude, causing lots of damages to people. This study presents a method to evaluate the direct spatial damages of flooding based on inundation depth and land use data. Damage functions for different types of land use arc selected and applied. Matlab strings and GIS are combined to calculate damage in monitery term. The method is applied for estimating loss caused by thc flood event November 1999 for Huong rivce basin.

10p dem_thanh 22-12-2012 50 3   Download

The use of radio-frequency communication—commonly referred to as wireless communication—is becoming more pervasive as well as more economically and socially important. Technological progress over many decades has enabled the deployment of several successive generations of cellular telephone technology, which is now used by many billions of people worldwide; the near-universal addition of wireless local area networking to personal computers; and a proliferation of actual and proposed uses of wireless communications.

113p camnhung_1 14-12-2012 58 5   Download

According to the Intergovernmental Panel on Climate Change, the impacts of climate chang on the water cycle are already evident and projected to increase substantially in the futur Climate change impacts the quantity and qua of freshwater resources and the frequency of extreme events, such as floods and droughts While climate change is only one of many drivers increasing pressure on water resource its impact is projected to be significant and to accelerate over time. Climate change reinforc and adds urgency to the case for good water resources management more generally.

358p lulaula 25-10-2012 64 13   Download

In a world where the population is expected to rise to 10 billion by the turn of the century, accelerating urbanisation and the increasing the demand for food and energy; taking action to secure sufficient water of acceptable quality for humans and nature is as urgent as ever. Climate change is projected to aggravate water stress in many regions, especially where water is already scarce and where the demand for water is growing rapidly. Increased frequency of floods is also projected.

0p lulaula 25-10-2012 46 6   Download

More than one hundred species of nematodes have been reported from upland and paddy rice in many countries (Tab. 1). Their frequency and importance are very variable and, in most cases the existence of a parasitic relationship with rice is probable but has not been demonstrated. Many species of root nematodes have been observed both in dry and irrigaftieldd s but very few species are found in both situations. Several surveys made by the authors in WAefrsitc a have shown that a relatively low number of species are adapted to permanently flooded conditions.

24p khanhbvtv 11-07-2012 88 3   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