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Hi Biswadev, re: > I am looking for atmospheric Refractivity Data over CONUS for year > 2012 (June-July-August) period. Kindly let me know if refractivity > (profile) data are available from GPS/COSMIC We do not have any archives of the GPS data from COSMIC. Your best bet is to contact the COSMIC folks directly to see if they have the type of data for the time period you are interested in: The COSMIC HomePage is: http://www.cosmic.ucar.edu/ I quick look at the Data Products -> CDAAC link on the COSMIC HomePage: http://cdaac-www.cosmic.ucar.edu/cdaac/products.html shows the following: Current release of COSMIC atmPrf and wetPrf data from CDAAC are now available on CISL Research Data Archive (RDA) at NCAR in dataset ds723.0 (http://rda.ucar.edu/datasets/ds723.0). The data files are the same as on CDAAC, but organized as monthly tar balls archived on CISL HPSS. Data requests through the "Data Access" tab at the above URL will be reviewed. Once approved, the requested data will be staged for downloading via web tools. This dataset requires the same access permission as on CDAAC's web site. Should you decide to download the COSMIC data from CISL RDA, please register on http://rda.ucar.edu (top page, upper left side). Please feel free to send your questions/comments to address@hidden. I hope that this helps! Cheers, Tom -- **************************************************************************** Unidata User Support UCAR Unidata Program (303) 497-8642 P.O. Box 3000 address@hidden Boulder, CO 80307 ---------------------------------------------------------------------------- Unidata HomePage http://www.unidata.ucar.edu **************************************************************************** Ticket Details =================== Ticket ID: FZS-562707 Department: Support SUOMINET Priority: Normal Status: Closed