NJ Flood Mapper: ABOUT NJ Flood Mapper home Rutgers, The State University of New Jersey

  Home > About > Why Is Sea Level Rising?  

 

WHY IS SEA LEVEL RISING?

Global sea level and the Earth’s climate are closely linked. The Earth’s climate has warmed about 1.8°F during the last 100 years.  The two major causes of global sea level rise are thermal expan­sion of the oceans (water expands as it warms) and the loss of land-based ice due to increased melting.  Along the Mid-Atlantic Coast, coastal lands are subsiding further exacerbating sea level rise. In addition, oceanographic effects due to shifting of the Gulf Stream will potentially affect sea level in this region.

Global sea level is projected to rise during the 21st century at a greater rate than during 1961 to 2003.  Thermal expansion is currently contributing about half of the average rise, but land ice will lose mass increasingly rapidly as the century progresses. It is uncertain how much of the current land ice located in the Antarctic and Greenland ice sheets may melt. Other factors include changes in ocean dynamics, glacial isostatic adjustment and sediment compaction.

> 



 

Funding for the developement of this website was provided by NOAA's Cooperative Institute for Coastal and Estuarine Environmental Technologies (CICEET), New Jersey Recovery Fund, New Jersey SeaGrant, New Jersey Department of Environmental Protection, and the New Jersey Agriculture Experiment Station.

 
 

Website composed by the Grant F. Walton Center for Remote Sensing and Spatial Analysis (CRSSA), Rutgers University, in partnership with the Jacques Cousteau National Estuarine Research Reserve (JCNERR), and in collaboration with the NOAA Office for Coastal Management (OCM), © 2017.