To obtain slr records
Download
1 / 47

To obtain SLR records - PowerPoint PPT Presentation


  • 68 Views
  • Uploaded on

To obtain SLR records. Tide gauge records (RSLR) Find something that “keeps up” with sea level (coral reefs, marshes) RSLR -- worry about crustal movements! GPS data. Measure absolute SLR from satellite data (average over many points - tides, dynamic ocean topography). Sea level change.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'To obtain SLR records' - olin


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
To obtain slr records

To obtain SLR records

Tide gauge records (RSLR)

Find something that “keeps up” with sea level (coral reefs, marshes) RSLR -- worry about crustal movements! GPS data.

Measure absolute SLR from satellite data (average over many points - tides, dynamic ocean topography)


Sea level change

Sea level change

Volume of ocean basins

Mass of water

Volume of water






Sea level rise over the last 8 000 years

Sea Level Rise Over the Last 8,000 Years


Average sea level rise over the last 120 years

Average Sea Level Rise Over the Last 120 Years



Rsl change juneau ak an example of post glacial rebound

RSL Change: Juneau, AKAn Example of Post Glacial Rebound



Subsidence

Subsidence

  • Subsidence can be substantial exceeding the eustatic component significantlyLong Beach, CA: > 6 m due to hydrocarbon extractionTokyo: 3.5 m due to water extractionOsaka: > 2 m due to water extractionCoastal Louisiana: Up to 1 m per century due to natural and anthropogenic causes


Is sea level accelerating

Is Sea Level Accelerating?

(1) There are Indications of Sea Level Acceleration Although They Are Weak and do not Appear to be Increasing(2) Probably Won’t Know About Anthropogenic Effects Definitively for 30 or More Years


To obtain slr records

Long Island Sound

Relative Sea level Rise Curves

Varekamp and Thomas



To obtain slr records

Projected Coastal Megacities: 2010By 2100, tens of millions/year will have to respond to coastal flooding; Most vulnerable regions are South and South-East Asia; Africa; Carribean; Indian Ocean Islands; Pacific Ocean Islands.

Tianjin

Dhaka

Seoul

Osaka

Istanbul

Tokyo

New York

Shanghai

Los Angeles

Manila

Bangkok

Lagos

Mumbai

Lima

Karachi

Madras

Jakarta

Rio de Janeiro

Buenos Aires

Calcutta



To obtain slr records

Not Good, about 2300

people drowned