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Water and Hydrologic Extremes– Examples from Multiple River Basins, Carlos…
Water and Hydrologic Extremes– Examples from Multiple River Basins
Lecture Content
:bookmark:
*Water is Interconected
:globe_with_meridians:*
Countries Relationship with Rivers :globe_with_meridians:
Downstream Effects :non-potable_water:
Who Owns the Water?
Who Can Use It?
How much is fair?
Is there enough left?
Growing population :silhouettes:
Impact on water?
Impact on climate?
Impact on Enviornment?
Rapid Urbanization
Who has water access
Infrastructure capacity?
Water demand
Presure on water source
Climate Change
:red_flag:
Growing concern
Getting worse
Day Zero
Will become frequent
Who will it impact?
Warming Temperarture
Frequent Natural Disasters :thunder_cloud_and_rain:
Drought
Fire
Floods
Colder then average temperature
Growing Desertification
Increase cost
Billions in damages
Increased frequncy of payout
Connection to Class
:notebook:
Rainwater Catchment System
Water demand
Rapidly growing
Growing pressure on source
Water supply
Rainfall
Rapidly changing
Limiting factors
Available funds
Locally available materials
Local capacity to maintain system
Water Source Selection :potable_water:
General Rule :straight_ruler:
naturally pure
Protect from contamination
Treatment is expensive
Potential Sources of water
Rainwater
Surface water
Groundwater
Saline water
Dew
When Selecting :check:
All are included
Women and Children
underrepresented groups
Ecological Considerations
Downstream Considerations
Maintenance and Operation consideration
Who owns the source?
Abilitywillingness to pay?
Who will manage operation?
Who will collect fees?
Who will adress complaints?
Who will fix issues?
Plan for Growth
Demand Growth Beyond Yield?
Yield meeting future demand
Does Yield change seasonally?
Impact of climate change?
Connection to other classes
Foundations of Community Involvement
UAP 5084
What is Democracy? :eagle:
Rule of the people
Who is represented?
Who is excluded?
Goals of Engagement? :silhouettes:
Improving Decision Qaulity
Values, interests, and concerns
Range of actions
Effects and uncertainties
Best available knowledge
Best available methods
Incorporate new information,
Gain legitimacy
Be Seen by
Intrested parties
Affected parties
Follows local governing laws
Follows local governing regulations
Respects local customs
Public Participation :church::
Thick Participation
Proactive
network-based recruitment
attract a diverse mass
attract a critical mass
Small-group facilitation
Guided discussions
Discussion sequence
Moves FROM
sharing experiences
Moves TO
defining
Potential goals
Potential actions
Moves TO
considering views
Issue framing
Describes Main views
Describes options
Describes information sharing
Action strategy
Guided plan of attack
Connection to Outside Reference
Impact of Extreme Weather Events and Climate Change for Health and Social Care Systems
Impact on health system
:hospital:
Double burden
Increases demand
Disrupts supply
Social vulnerability
Elderly individuals
pre-existing health conditions
low-income groups
Socially isolated
Different Types of Stress
:forbidden:
Heatwaves
strain hospital buildings
increase respiratory illness
raise emergency visits
Coldwaves
disrupt transportation
limit access to care
increase falls
Increased cold realted illness
Flooding
damages facilities
interrupts utilities
long-term mental effects
Long-term physical effects
Climate change
Frequent and severe heatwaves
Increased flood risk
Uncertainty predicting future impacts
Inaccurate/broad climate projections
Lack of local-scale data
Unknown levels of future adaptation
Curtis, S., Fair, A., Wistow, J., Val, D. V., & Oven, K. (2017). Impact of extreme weather events and climate change for health and social care systems. Environmental Health, 16(1), 128.
https://doi.org/10.1186/s12940-017-0324-3
Understanding and Managing New Risks on the Nile With the Grand Ethiopian Renaissance Dam
The Nile River
~85% originates in Ethiopia
High downstream usage
Egypt
Sudan
Political tension
Who controls the river?
Who can use it?
No agreement
different goals and interests
On water sharing
On dam opperation
Main source of risk
Main source of water
Millions depend on river
water scarce region
Growing population
Grand Ethiopian Renaissance Dam
Will Produce Hydropower
Increas economic access
Increased electricty capacity
Alters River Conditions
Less downstream flooding
stable water supply
Improve irrigation
Controversy
Filling Period
Dependent on climate conditions
Downstream water quantity
False Confidence
Not acounts for climate change
relatively stable
Drought susceptibility
Public Perception
Falling downstream water levels
perception of hostility
"Water panic"
Wheeler, K. G., Jeuland, M., Hall, J. W., Zagona, E., & Whittington, D. (2020). Understanding and managing new risks on the Nile with the Grand Ethiopian Renaissance Dam. Nature Communications, 11(1), 5222.
https://doi.org/10.1038/s41467-020-19089-x
Carlos Pineda-Lopez
5/5/2026