Technical Implementation Notice 11-43

National Weather Service Headquarters Washington DC

915 AM EDT Tue Sep 6 2011


To:        Subscribers:

           -Family of Services

           -NOAA Weather Wire Service

           -Emergency Managers Weather Information Network


           Other NWS Partners, Users and Employees


From:      Tim McClung

           Chief, Science Plans Branch

           Office of Science and Technology


Subject:   Upgrade to High Resolution Real Time Global   

           Sea Surface Temperature Analysis:

           Effective October 11, 2011


On Tuesday October 11, 2011, the National Centers for Environmental Prediction (NCEP) will make several changes to the High Resolution Real Time Global Sea Surface Temperature Analysis system (RTGSSTHR).  These changes are expected to improve performance of the RTG sea surface temperature (SST) analysis.


The analysis system changes include:


1.  Add use of Remote Sensing Systems (RSS) retrievals of SST from Advanced Microwave Scanning Radiometer (AMSR) to analysis system.


2. Switch from using NOAA-18 AVHRR SST for retrievals to using NOAA-19.


The combined effect of these changes has resulted in the following improvements to the analysis:


1. Reduced time between observation-based updates of analysis in cloudy regions.


2. Improved bias and rms of the analysis with respect to buoy observations.


Data format, volume, and delivery will not be affected by this implementation.


The RTGSSTHR products are available on the NCEP Server at



where YYYYMMDD corresponds to the four digit year, two digit month and two digit day.


The data is also available on NOAAPORT with the WMO header ETWA88 KWBI.


The Environmental Modeling Center (EMC) has a publicly available website which can provide users more information concerning the RTGSSTHR:


For questions regarding the scientific content of the RTGSSTHR please contact:


Robert Grumbine


Camp Springs , MD 20746

301-763-8000 x7214


NWS National Technical Implementation Notices are online at: