SPACE CENTER, Miss.
-- This spring, researchers from The University of Southern Mississippi's
Department of Marine Science will launch a new ocean observing system
in the central Gulf of Mexico to gather detailed data on the weather
and water in the central Gulf.
Funded by $1.6
million from the Office of Naval Research (ONR), the new system
called CenGOOS (Central Gulf Ocean Observing System), will begin
operations with a single three-meter discus buoy outfitted with
sensitive oceanographic and meteorological data-collecting instrumentation.
The buoy will have a high-resolution GPS receiver and other instruments
to measure wind speed, atmospheric pressure, air temperature, humidity,
waves, ocean currents, and sea temperature and salinity. Soon after
deployment, the data will be accessible on Southern Miss' CenGOOS
Science Research Center (HSRC) and its partners, propose to help
advance our ability to determine sea level elevation and vessel
under keel clearance by conducting research to advance the modeling
of tropospheric delay of GPS signals used for 3-D navigation in
the marine environment," said Dr. Stephan Howden, principal
investigator for the ONR grant. Tropospheric delays refer to the
refraction of GPS signals by the neutral atmosphere that result
in positioning errors.
could accurately measure sea level relative to a chart datum, one
of the main uncertainties and delays in producing bathymetry [water
level depth] data could be eliminated," Howden said.
Dr. Sunil Bisnath, an assistant research scientist specializing
in real-time kinematic GPS, said the ultimate result of better handling
of atmospheric error will be increased accuracy, reliability, and
availability of precise GPS positioning (within a few inches) in
and Environmental Research Group (GERG) at Texas A & M University
in College Station, Texas, is assembling the first buoy in collaboration
with Southern Miss.
project is coordinated through the Southern Miss Department of Marine
Science, located at Stennis Space Center in Hancock County.