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Dead Sea desiccation

Dead Sea desiccation. LAWRENCE NEMEH 2014. DEAD SEA BASICS. One of the saltiest seas in the world Lowest elevation of the world, deepest salt lake in the world Virtually impossible to host life = DEAD Density, the floating effect Vital interest for the region. IDENTIFYING DESICCATION.

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Dead Sea desiccation

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  1. Dead Sea desiccation LAWRENCE NEMEH 2014

  2. DEAD SEA BASICS • One of the saltiest seas in the world • Lowest elevation of the world, deepest salt lake in the world • Virtually impossible to host life = DEAD • Density, the floating effect • Vital interest for the region

  3. IDENTIFYING DESICCATION • Rapid recession of the Dead Sea’s surface level • Surface level from -395m to -418m between 1970- 2006 • 20m total, or 1m/year

  4. LINKS & CAUSES • Rising populations • Expanding agricultural sectors • Dams • Major industrial activities • Dead Sea Works processing potash from the man made evaporation ponds in the southern part of the sea

  5. IMPACTS • Sinkhole phenomenon • Desiccation, groundwater level recedes, allows freshwater to invade underground layers, displacing brines, dissolving salt layers, creating new cavities until ground surface collapses • Impacts the integrity of the land, commercial interests (hotels, restaurants) and lives

  6. RED SEA-DEAD SEA CANAL • Agreement between Israel, Jordan and the Palestinian Authority • Mission: transporting water north from the Red Sea to the Dead Sea • Desalination facility to purify half the water for Jordanians and Palestinians and for Israel’s use in the Arava and Eilat • Plans began in 2009, aiming for production in 2017

  7. SECOND TIMES THE CHARM? • ~100,000 years ago: Dead Sea almost dried up • Geologists from the Lamont Doherty Earth Observatory at Columbia University • Drilled a core to analyze about 250,000 of sediment history • Discovered 45-meter salt layer within the core

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