Tropical Rainfall Measuring Mission (TRMM) KWAJEX
NOAA AL Profiler Observations in Support of KWAJEX, Legan Island, Kwajalein Atoll, Republic of the Marshall Islands
KWAJEX is an international field program led by scientists at the University of Washington. The aim of KWAJEX is to provide ground validation for the TRMM satellite and test the physical basis of algorithms used in estimating precipitation from the TRMM satellite. KWAJEX takes on a special significance since Kwajalein is the only TRMM ground validation field site over the open ocean. The data base developed in KWAJEX will be suitable for validation of numerical simulation of mesoscale convective systems using cloud-resolving models and forward radiative transfer models to understand and improve the performance of the satellite and ground validation algorithms. The KWAJEX data archive will reside at the GSFC DAAC.
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| Figure 1. Map of Kwajalein Atoll and the neighboring atolls and islands showing the Kwajalein GV radar and GV rain gauges. | Figure 2. Photo of Legan Island showing the location of the profiler size relative to the other buildings on the island. | Figure 3. Paul Johnston with the wind profilers on Legan showing the profiler container (center) and the two antenna shrouds (left). |
Links to AL KWAJEX profiler archives:
- Browse archive of profiler images (a new window will open). This link provides images of the profiler observations.
- Profiler calibration. This link describes the profiler calibration using the collocated surface Joss-Waldvogel disdrometer.
- Calibrated profiler data archive. This link contains the calibrated profiler observations of reflectivity, Doppler velocity, and spectral width.
- Surface Meteorological data archive. This link contains the observations from the collocated surface met observations.
- Joss-Waldvogel Disdrometer. This link contains the observations from the collocated Joss-Waldvogel disdrometer.