Please note that there is currently a problem with the monitoring
of ATOVS data which accounts for the noise on some of the plots.
There is no problem with the instrumentation on the satellite.
ATOVS Advanced TIROS Operational Vertical Sounder
TOVS TIROS Operational Vertical Sounder
AMSU Advanced Microwave Sounding Unit
HIRS HIgh Resolution Infrared Sounder
NOAA National Oceanic and Atmospheric Administration
NESDIS National Environmental Satellite, Data and Information
TIROS Television InfraRed Observation Satellite
1D-VAR One Dimensional Variational Analysis