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Sea-Level Change

Sea-Level Change. www.theclimatescam.com. Sea Level Change – No joke and not funny. Sea Level – Global Historic R ecords. Rates for global average 1961-2003: 1.8mm/yr 1993-2003: 3.1 mm/yr. Causes? thermal expansion: as ocean water warms it expands

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Sea-Level Change

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  1. Sea-Level Change www.theclimatescam.com

  2. Sea Level Change – No joke and not funny

  3. Sea Level – Global HistoricRecords • Rates for global average • 1961-2003: 1.8mm/yr • 1993-2003: 3.1 mm/yr • Causes? • thermal expansion: as ocean water warms it expands • land-based ice: melting of glaciers and ice sheets • Subsiding lowlands (naturally; i.e. Lousiana) • Subsiding lowlands (human-induced; sediment-starved • due to river dams (i.e. Mississippi Delta) Ref: IPCC 4th Assessment, Summary for Policymakers, Feb. 2, 2007

  4. Sea Level – Historic Data for the USA Sea-level drop in parts of Alaska because land is rising Source: Monthly and Annual Mean Sea Level Station Files from the Permanent Service for Mean Sea Level (PSMSL) at the Proudman Oceanographic Laboratory

  5. Sea Level Change – Future Scenarios

  6. Sea Level Change – Impact on Bay Area? Afternoon Activity: Mapping sea level rise

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