Rising sea levels are a global concern, several coastal cities and island will submerge undersea. to sustain this climate / environmental change, we might need to shift our habitat from land to ocean.

1. RISING SEA LEVELS
CCA_M.ARCH_DISASTER AND RISK MANAGEMENT OF THE BUILT
ENVIRONMENT
Submitted to - Dr Rashmi Sanghi
Submitted by - Ar. Prerna Chouhan

2. MELTING ICE
GLOBALLY
CAUSES OF SEA
LEVEL RISE
REGIONALY
THERMAL
EXPANSION
OCEAN
CURRENTS
REBOUND &
SINKING OF
LAND
How does Sea Level Rises ?

3. Future - Emissions Could Add 15 Inches to 2100
Sea Level Rise
ANTARCTICA
GREENLAND

4. What is it we need to do to be
ready for the effects of climate
change?
What uncertainties do we
face?
LONDON UNDERWATER - PREDICTED

5. HOW ARE RISING SEA LEVELS A PREDICTABLE
DISASTER ?
Sea-level rise of 210
feet - a little taller than
the Leaning Tower of
Pisa.
3
Exact estimates remain
elusive - ranging from
just over a foot to
several feet above
current levels.
2
Complex dynamics of
massive ice sheets
1

6. HOW ARE RISING SEA LEVELS A PREDICTABLE
DISASTER ? FLOODING -
FORCING
MIGRATION
EXISTING
CONSEQUENCES
SEA LEVEL
RISE AS A
DISASTER
FUTURE
CONSEQUENCES
THREATENING
BASIC
SERVICES
LOSS OF COASTAL
HABITAT & SEA
LIFE
100 MILLION
MIGRANTS -
NOWHERE TO GO

7. We need to begin planning and designing for that
while there is time to adapt
Mumbai has a population of 12.5 million, Rising sea
level puts Mumbai at risk of being submerged by
2050 (ARABIAN SEA)
Kolkata is going to be submerged in standing water
(SEA OF BAY OF BENGAL)
CITIES WILL DISAPPEAR FROM THE FACE OF MAP
Waterborne disease will be born causing epidemics
of massive scale

8. Sea Level Projections Drive San Francisco's
Adaptation Planning (CASE STUDY)
• Pacific Decadal Oscillation (PDO), a key driver of
sea level fluctuations along the West Coast.
• The PDO alternates between warm and cool phase
about every five to 20 years, bringing warm or
cool waters to the West Coast and raising or
lowering sea levels in the process.
• These can lead to extended periods of elevated
flood risk.
• Seal level increase of about 0.4 inches (10
millimeters) a year for the past five years at West
Coast is observed and will continue to see similar
increases for the next few years.
• San Francisco’s potential vulnerabilities to sea
level rise
• Adaptation playbook- Green infrastructure
• Establishing wetlands to reduce the effects of
wave action.

9. Sea Level Projections Drive San Francisco's
Adaptation Planning (CASE STUDY)
• Approximately four-square
miles of San Francisco are
located within the City’s
SLR Vulnerability Zone.
• The SLR Vulnerability Zone
is 108 inches above today’s
high tide.
• Action plan - Mission rock development elevations
Sea Walls & coastal Houseboats
• Ocean Beach Master Plan implementation

10. Sea Level Projections Drive San Francisco's
Adaptation Planning (CASE STUDY)
• Action plan - Mission
rock development
elevations Sea Walls
& coastal Houseboats
• Ocean Beach Master
Plan implementation

11. Mitigation Measures - Assessment Tools
• New High Tide Flooding Projection Tool Aids U.S.
Coastal Decision Making
• This tool can assess how sea level rise and other
factors will affect the frequency of high tide
flooding in U.S. coastal locations in the next 50 to
100 years.
• National Oceanic and Atmospheric Administration
(NOAA)
• If ΔH is negative, the reaction is exothermic; if ΔH
is positive, the reaction is endothermic.

12. Barriers to Sea | Floating Habitats (CASE STUDY)
• The Maeslantkering in southern Holland is
the world's biggest storm surge barrier.
• 22 meters high, made from thick steel, -
defends a huge part of the Netherlands
against the sea.- formidable machine.
• The barrier - protect the large areas of The
Netherlands - below sea level
• Architecture firm BIG - designed a concept for a floating
city of 10,000 people - threatened by extreme weather
events and rising sea levels.

13. Aquatecture - Complete Urban Habitat
AQUATECTURE
Floating Fields-
establishes
farming in a new
frontier.
Patterned Energy-
water environment
for major energy
systems
Mobile Offshore
Industry- off
remote shores,
over sea
bottoms, near
fishing fleets or
with other
aquatectural
structures
Cross Roads in
the Sea-
intermodal
transportation

14. REFERENCES
• https://www.nasa.gov/specials/sea-level-rise-2020/?utm_source=TWITTER&utm_medium=NASA&utm_campaign=NASASocial&linkId=103744599&fbclid=IwAR3e8dz1ZA3elIq-QUo6OnBBuEyp3QbpVFYg5EhGSzh0G35_w1jkEsM-JmY
• https://www.nasa.gov/feature/goddard/2020/emissions-could-add-15-inches-to-2100-sea-level-rise-nasa-led-study-finds
• https://sealevel.nasa.gov/news/209/sea-level-projections-drive-san-franciscos-adaptation-planning
• https://sfplanning.org/sea-level-rise-action-plan
• https://default.sfplanning.org/plans-and-programs/planning-for-the-city/sea-level-rise/SLRVCA_Report_Executive_Summary.pdf
• https://default.sfplanning.org/plans-and-programs/planning-for-the-city/sea-level-rise/SLRVCA_Report_02.pdf
• https://sealevel.nasa.gov/news/206/new-high-tide-flooding-projection-tool-aids-us-coastal-decision-making
• https://earthdata.nasa.gov/learn/sealevel
• https://sealevel.nasa.gov/vesl/web/sea-level/slr-gravity/
• https://sealevel.nasa.gov/data_tools/2
• https://www.architecture.com/riba-books/books/landscape-architecture-and-design/product/9781859465318-aquatecture-buildings-and-cities-designed-to-live-and-work-with-water.html
• https://www.baca.uk.com/books-aquatecture.html
• https://www.cbsnews.com/news/climate-change-rising-sea-levels-worst-case-projections/
• https://www.nationalgeographic.com/environment/global-warming/sea-level-rise/#:~:text=Consequences&text=When%20sea%20levels%20rise%20as,fish%2C%20birds%2C%20and%20plants.
• https://bacablog01.wordpress.com/2014/07/23/bacas-floating-village-a-crown-in-the-royal-docks/
• https://www.dezeen.com/2019/04/04/oceanix-city-floating-big-mit-united-nations/
• https://youtu.be/aUqrBV4SiqQ
• https://id.iit.edu/projects/aquatecture/
• https://www.business-standard.com/article/pti-stories/mumbai-could-be-submerged-by-2050-sea-rise-may-impact-five-times-more-indians-by-2100-study-119103001294_1.html
• https://youtu.be/cPSOaf1Mld4
• https://youtu.be/QDKobsJJlRw
• https://www.insider.com/sinking-cities-climate-change-2019-5#rotterdam-the-netherlands-9
• https://climate.nasa.gov/climate_resources/18/quiz-sea-level-rise/

15. It is well said that Change is only Constant but
Together as Professionals we can Sustain all the
Changes.
THANK YOU !
Hope you find this presentation informative and enjoyable.
Presented by - Ar. Prerna Chouhan
Student of M.arch batch 2020-2022 at CCA
prernachouhan@hotmail.com