The Kwajalein Experiment (KWAJEX), held 23 July - 15 September 1999, was a field observation campaign centered on Kwajalein Atoll, Marshall Islands and sponsored by NASA in cooperation with the U.S. Army Kwajalein Atoll/Kwajalein Missile Range and the National Oceanographic and Atmospheric Administration. The joint U.S.-Japan Tropical Rainfall Measuring Mission (TRMM) satellite was launched in November 1997 and uses a Ku-band radar and a multi-channel passive microwave radiometer to map precipitation in the tropics. A number of physical assumptions are made within the TRMM satellite algorithms in order to obtain rain rates from the the satellite-measured radiances. The goals of KWAJEX were focused on making observations to reduce uncertainty in these physical assumptions by gathering a coordinated data set of airborne, shipborne, and ground-based measurements within tropical open ocean precipitating clouds. This site integrates information on the specific measurements made during the KWAJEX field campaign and on the ongoing data processing and analysis.
Sandra Yuter firstname.lastname@example.org
Robert A. Houze, Jr email@example.com
For more information, link to the KWAJEX homepage at