Book contents
- Frontmatter
- Contents
- List of Contributors
- 1 Introduction
- 2 Integrated regional risk assessment and safety management: Challenge from Agenda 21
- 3 Risk analysis: The unbearable cleverness of bluffing
- 4 Aspects of uncertainty, reliability, and risk in flood forecasting systems incorporating weather radar
- 5 Probabilistic hydrometeorological forecasting
- 6 Flood risk management: Risk cartography for objective negotiations
- 7 Responses to the variability and increasing uncertainty of climate in Australia
- 8 Developing an indicator of a community's disaster risk awareness
- 9 Determination of capture zones of wells by Monte Carlo simulation
- 10 Controlling three levels of uncertainties for ecological risk models
- 11 Stochastic precipitation-runoff modeling for water yield from a semi-arid forested watershed
- 12 Regional assessment of the impact of climate change on the yield of water supply systems
- 13 Hydrological risk under nonstationary conditions changing hydroclimatological input
- 14 Fuzzy compromise approach to water resources systems planning under uncertainty
- 15 System and component uncertainties in water resources
- 16 Managing water quality under uncertainty: Application of a new stochastic branch and bound method
- 17 Uncertainty in risk analysis of water resources systems under climate change
- 18 Risk and reliability in water resources management: Theory and practice
- 19 Quantifying system sustainability using multiple risk criteria
- 20 Irreversibility and sustainability in water resources systems
- 21 Future of reservoirs and their management criteria
- 22 Performance criteria for multiunit reservoir operation and water allocation problems
- 23 Risk management for hydraulic systems under hydrological loads
11 - Stochastic precipitation-runoff modeling for water yield from a semi-arid forested watershed
Published online by Cambridge University Press: 18 January 2010
- Frontmatter
- Contents
- List of Contributors
- 1 Introduction
- 2 Integrated regional risk assessment and safety management: Challenge from Agenda 21
- 3 Risk analysis: The unbearable cleverness of bluffing
- 4 Aspects of uncertainty, reliability, and risk in flood forecasting systems incorporating weather radar
- 5 Probabilistic hydrometeorological forecasting
- 6 Flood risk management: Risk cartography for objective negotiations
- 7 Responses to the variability and increasing uncertainty of climate in Australia
- 8 Developing an indicator of a community's disaster risk awareness
- 9 Determination of capture zones of wells by Monte Carlo simulation
- 10 Controlling three levels of uncertainties for ecological risk models
- 11 Stochastic precipitation-runoff modeling for water yield from a semi-arid forested watershed
- 12 Regional assessment of the impact of climate change on the yield of water supply systems
- 13 Hydrological risk under nonstationary conditions changing hydroclimatological input
- 14 Fuzzy compromise approach to water resources systems planning under uncertainty
- 15 System and component uncertainties in water resources
- 16 Managing water quality under uncertainty: Application of a new stochastic branch and bound method
- 17 Uncertainty in risk analysis of water resources systems under climate change
- 18 Risk and reliability in water resources management: Theory and practice
- 19 Quantifying system sustainability using multiple risk criteria
- 20 Irreversibility and sustainability in water resources systems
- 21 Future of reservoirs and their management criteria
- 22 Performance criteria for multiunit reservoir operation and water allocation problems
- 23 Risk management for hydraulic systems under hydrological loads
Summary
ABSTRACT
A stochastic precipitation-runoff modeling approach is used to estimate water yield from a particular forested watershed in North Central Arizona. The procedure uses selected theoretical probability distribution functions and a random number generator to describe and simulate various precipitation characteristics, such as storm depth, duration, and time between storm events. The spatial characteristics of precipitation events are described in terms of their orographic and areal distribution patterns while temporal distributions are expressed in terms of daily events in the watershed. The generated precipitation events are used as input into a precipitation-runoff model to estimate water yield from a particular forested watershed. The method uses geographic information systems (GIS) to subdivide the study watershed into cells assumed to be homogenous with respect to watershed characteristics, such as elevation, aspect, slope, overstory density, and soil type. The total water yield is the accumulated surface runoff generated at the watershed outlet. The outcome is the development of an improved model for estimating water yield which takes into consideration uncertainty, as well as temporal and spatial watershed characteristics. This method is useful not only for providing water resources managers with a good estimate of the amount of water yield, but also for determining the reliability or failure of a source to meet desired downstream water demands.
INTRODUCTION
This chapter is concerned with the development of an appropriate precipitation-runoff model for estimating water yield from a semi-arid forested watershed. This involves combining a stochastic precipitation model and a deterministic runoff model. The first one is selected to capture the inherently uncertain characteristics of precipitation, while the latter is chosen to simplify an otherwise complex surface runoff estimation method.
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- Publisher: Cambridge University PressPrint publication year: 2002