1. MODELING THE NATURAL RESOURCES
SYSTEM AND RELATED INFRASTRUCTURE
>> Muhammad bin Ramlan

2. Lakes and Reservoir
• Intro
• Estimating Active Storage Capacity
• Reservoir Storage-Yield Functions
• Evaporation Losses
• Over and Within-Year Reservoir Storage and
Yields
• Estimation of Active Reservoir Storage
Capacities for Specified Yields
Wetlands and Swamps
Water Quality and Ecology

3. The primary use of all reservoir
is to provide a means of
regulating downstream surface
water flows over time and
space.
Other purposes may include
storage volume management
for recreation and flood
control, and storage and
release management for
hydropower production.

4.  Reservoir
storage capacity can be divided
among three major uses:
Used for downstream flow
Active regulation and for water supply,
storage recreational development or
hydropower production
Dead
storage Required for sediment collection
Capacity reserved to reduce
Flood
storage potential downstream flood
damage during flood events

5. Important elements of the water resources system.
They provide regulating functions with respect to both
quantity (eg. flood attenuation) and quality (self
purification). Most wetlands support valuable
ecological systems.
Most wetlands support valuable ecological systems.

6. • River basin models focusing on water quantities are
mostly used to investigate whether sufficient water is
available to satisfy the various use functions and to
identify measures to match supply and demand.
• The core of most river basin models consists of
keeping track of the water balance of the whole river
basin.
• The analysis of water quality and ecology is done using
another model of for a specific part of the system e.g.
river stretch, reservoir or ground water system. This
model will be described in Chapter 12.

7. THANK YOU
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