SEMINAR: TIME CHANGE - SEMINAR: AOML Seminar - March 18, 2010 - 10:00 a.m.- Prof. Milton Halem -

["Aoml.Receptionist" <Aoml.Receptionist@noaa.gov>]

AOML Seminar

   DATE:           Thursday,  March 18, 2010

TIME:            10:00 a.m. –Refreshments at 9:45 a.m.

LOCATION:      1st Floor Conference Room

SPEAKER:      Prof. Milton Halem,

                    University of Maryland,

                        Baltimore County

TITLE :        "A New Data Product for the AIRS

                   and MODIS Instruments: A  Fundamental 
  Decadal Data Record of   Gridded Radiances"

Abstract: At the UMBC Multicore Computational Center, we were motivated by three significant scientific considerations to develop a Service Oriented
 Atmospheric Radiance (SOAR) gridding system to provide access to a new data product consisting of highly accurate Level 3 arrays of gridded AIRS,
MODIS and HIRS radiances or equivalently, Brightness Temperatures. First, gridded radiance data sets formed directly from the observations 
themselves, if well calibrated, can provide an unquestionable decadal record and trends of the variability of the atmosphere on different 
time and spatial scales. _Second_, gridded AIRS and MODIS radiance data on the same satellite can be inter-compared and aggregated on 
appropriate scales with each other as well as compared with observations of radiance data from other instruments such as HIRS that have 
been collected for more than thirty years over different spatial and spectral resolutions to provide a fundamental climate data record. 
_Third_, gridded arrays of variables constitute the most commonly used format for the study of dynamical processes and energy balances 
of our planet employed by atmospheric scientists, modelers and climatologists. Yet, no such data set of gridded radiance data is 
available today. We describe in this lecture a highly precise gridding calibration technique for precisely determining the radiances 
observed at the instrument detector emanating from a grid cell relative to the satellite viewing angle and show examples of scientific 
products derived from directly from the radiance observations such as ENSOs, MJOs, OLRs, and other processes. 

 

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