Woods Hole Oceanographic Institution UCTD and EM/APEX Measurements in Support of the April 2015 AirSWOT Campaign: Cruise and Data Report by J. Thomas Farrar, Benjamin Hodges, Sebastien Bigorre, Nan Galbraith, Physical Oceanography Department, Woods Hole Oceanographic Institution James Girton, University of Washington, Applied Physics Laboratory Yi Chao, Remote Sensing Solutions, Inc. December 2, 2015 Approved for public release; distribution unlimited. Technical Report WHOI-2015-04 This work was performed for the Jet Propulsion Laboratory, California Institute of Technology, sponsored by the United States Government under the prime Contract NNN12AA01C between the Caltech and NASA under subcontract number 1523706. Farrar and Girton were also supported by NASA Grants NNX13AD90G.