Global Sites Data Dowload Caribbean Network Processing Overwiew Ionospheric Map Weekly Results Slant Plots Database Interface SuomiNet Related Questions University SuomiNet Activities SuomiNet Publications Special Projects Links Global Sites Data Dowload Caribbean Network Processing Overwiew Ionospheric Map Global Weekly Results Slant Plots Database Interface SuomiNet Related Questions University SuomiNet Activities SuomiNet Publications Special Projects Links


Real Time Integrated Atmospheric Water Vapor and TEC from GPS

Processing GPS Data from Suomi Network + NOAA, USCG/USACE, DOT, and Other Sites.



Current Precipitable Water Vapor - US    Global Sites with Delay or PWV Estimates

Northwest Southwest Mountains North Mountains South Central North Central Central South Northeast Atlantic Southeast Caribbean


White squares show sites with both GPS and met data.   To view the results, please click on the desired area
USA Institutions Key

Comparison most recent GOES PWV image
Combined IR GOES and GPS PWV Amination - USA - Provided By Unidata

Combined IR GOES and GPS PWV Amination - Caribbean - Provided By Unidata

Update October 4, 2007

  An animation of GPS PW overlayed on GOES IR4 satellite images has been created for the Caribbean basin as hurricanes Dean and Emily move through the region. This animation can be viewed through our case studies page, or viewed directly at http://www.suominet.ucar.edu/dean/dean_pp.avi. We have also been including data from the Dominican Republic into our post-processed daily analysis to help augment the Caribbean data sets.

  Updated statistics comparing GPS PW estimates to both the ETA and GFS analysis fields are now available.

  As time permits, we are reanalyzing archived data using our most current processing strategies and the Bernese version 5.0 software. The global processing back to 2005 has been completed. North American processing back to 2006 is available, with 2005 results becoming available in the next couple of weeks.

  ASCII result files for individual stations within the North America region are now now available through our data download page: http://www.suominet.ucar.edu/data/index.html.
Results from the daily processing runs are available for 2006 and 2007. Hourly results are available for 2007.

Posted by The Suominet Group

To view past updates please go to: Past Updates


Map Plots of PWV Results
We display the current color contour PWV map based on our processing results. PWV is plotted in units of cm. You can also take a look at a near-real-time comparison GOES PWV image for the same area at The CIMSS Realtime GOES Page . The stations for which the wet delay was estimated in the last solution, shown as white squares on the map, are used to generate the contours (GMT routines are used to generate the maps.) Please note that for regions with sparse or no wet delay sites, the contour maps can contain incorrect values. When surface pressure and temperature are not available we use default pressure and temperature for the dry delay computation. These stations, shown by red squares are not used in generating the PWV map.

We have also generated total electron density maps for the region. These TEC maps are generated from 1 hour of dual frequency observations of the network and the TEC units represent the total number of electrons in a vertical column of 1 square meter.
Click here for postscript total electron density maps.





Acknowledgment and Disclaimer:
      This material is based upon work supported by the National Science Foundation under Grant No. 0313588. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.



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Last Modified: May, 2007

         

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