Climate Change Sea Level Rise Climate Change Weather

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Climate Change: Sea Level Rise

Climate Change: Sea Level Rise

Climate Change Weather vs. Climate Weather: day to day changes in temperature, rainfall, cloudiness,

Climate Change Weather vs. Climate Weather: day to day changes in temperature, rainfall, cloudiness, moisture Climate: long term changes in weather patterns on our planet Effects of climate change: Sea level rise (today’s activity) Warmer sea surface temperatures Drought (water shortage), flooding

Pacific Islands Ocean Observing System

Pacific Islands Ocean Observing System

Divers work on sensors at the Kilo Nalu Reef Observatory which monitor water quality

Divers work on sensors at the Kilo Nalu Reef Observatory which monitor water quality and temperature

HIOOS Wave buoys monitor wave Coastal Wave height, Buoy direction, and period around Measurements

HIOOS Wave buoys monitor wave Coastal Wave height, Buoy direction, and period around Measurements the Pacific Ocean

CO 2 Buoy – South Shore Oahu Temperature Carbon Dioxide Salinity Oxygen Chlorophyll Turbidity

CO 2 Buoy – South Shore Oahu Temperature Carbon Dioxide Salinity Oxygen Chlorophyll Turbidity Photo courtesy of R. David Beales, UH Creative Services

HIOOS Coastal Wave Buoy Measurements Sea Level Stations Tide gauge stations all over the

HIOOS Coastal Wave Buoy Measurements Sea Level Stations Tide gauge stations all over the world continuously monitor water level

CO 2 and Climate Change Greenhouse effect – makes life on Earth possible CO

CO 2 and Climate Change Greenhouse effect – makes life on Earth possible CO 2 comes from natural and man made sources: Natural: animal respiration, volcanoes Man made: burning fossil fuels (cars, planes, electricity), deforestation (cutting/burning trees) Too much CO 2 causes too much warming

What affects sea level on short time scales? • Tides • Weather • storms,

What affects sea level on short time scales? • Tides • Weather • storms, hurricanes, waves • El Nino • can lower or raise sea level depending on location

What causes global sea level rise? Climate Change Increasing temperatures cause melting ice in

What causes global sea level rise? Climate Change Increasing temperatures cause melting ice in alpine glaciers, Greenland, and Antarctica Warming causes thermal expansion of ocean water – like air and other fluids, water expands as the temperature increases

Types of ice Land-based ice (freshwater) Glaciers, icebergs Ice sheets (Antarctica and Greenland) Alpine

Types of ice Land-based ice (freshwater) Glaciers, icebergs Ice sheets (Antarctica and Greenland) Alpine (mountain) ice Sea ice (seawater) Forms in the sea as water freezes Floating in water Glacier Alpine Ice Sea Ice Photo credit: NSIDC

What are the effects of sea level rise? Coastal flooding Contaminating drinking water with

What are the effects of sea level rise? Coastal flooding Contaminating drinking water with seawater Increases impact of storms Increases risk of coastal erosion

Future Sea Level Rise Prediction: Sea level will rise 1 m (3. 3 ft)

Future Sea Level Rise Prediction: Sea level will rise 1 m (3. 3 ft) in the next 100 years Many areas in Hawaii are close to sea level Data from UH Coastal Geology Group