European Geosciences Union (EGU)



The PO.DAAC is pleased to announce the "Preview" release of the "SeaWinds on QuikSCAT Arctic Sea Ice Age Classification (BYU/SCP)" dataset produced by Dr. David Long at Brigham Young University (BYU) as part of the Scatterometer Climate Record Pathfinder (SCP) (Swan and Long, 2012). This dataset identifies First-Year (FY) and Multi-Year (MY) sea ice using SeaWinds on QuikSCAT scatterometer observations on a daily basis from 20 June 2002 through 23 November 2009.
Over twenty years ago NASA and French partners, CNES, collaborated on what became the first of a series of important oceanographic missions that have been measuring ocean surface topography from space ever since. This first mission, TOPEX/Poseidon (T/P), is no longer operational, having exceeded its expected lifetime of 5 years to provide over 13 years of data. Two follow-on missions, Jason-1, and the Ocean Surface Topography Mission/Jason-2 (OSTM/Jason-2) launched in 2001 and 2008, respectively, and have extended the time series of data to over 20 years.
There's an old adage (with several variations) that California has four seasons: earthquake, fire, flood and drought. While Californians happily cede the title of Hurricane Capital of America to U.S. East and Gulf coasters, every once in a while, Mother Nature sends a reminder to Southern Californians that they are not completely immune to the whims of tropical cyclones.
There's an old adage (with several variations) that California has four seasons: earthquake, fire, flood and drought. While Californians happily cede the title of Hurricane Capital of America to U.S. East and Gulf coasters, every once in a while, Mother Nature sends a reminder to Southern Californians that they are not completely immune to the whims of tropical cyclones.



In mid 2010 to mid 2011, global mean sea level (GMSL) dropped by ~5 mm. By “weighing“ the ocean using the Gravity Recovery And Climate Experiment (GRACE) satellites, the source of this sudden decrease can be determined. Was there less water in the ocean or was it temporarily cooler than normal?