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NRT Notification Detail
| Release of the ROM SAF multi-mission Climate Data Record
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DATE: 2021-06-09 08:23
TYPE: DATA
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| Description
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Dear ROM SAF DATA User



Issued : 2021-06-09 08:20 UTC



The ROM SAF is pleased to announce that the multi-mission Climate Data Record (CDR) based on Metop, COSMIC, GRACE, and CHAMP data, is now available (product id: GRM-28-R1). The multi-mission CDR covers the time period from September 2001 to December 2016.



The multi-mission CDR was generated as a part of the first ROM SAF reprocessing (RE1). Unlike the single-mission CDRs, this data record only contains Level 3 gridded monthly mean data. The corresponding Level 1B and Level 2 profile data are included in the single-mission CDRs.



The ROM SAF multi-mission CDR is based on the following data:



 | MISSION | TIME PERIOD | INPUT FROM |



 ------------------------------------------

 | Metop | Dec 2006-Dec 2016 | EUMETSAT |



 | COSMIC | Jul 2006-Dec 2016 | UCAR |



 | GRACE | Mar 2007-Dec 2016 | UCAR |



 | CHAMP | Sep 2001-Sep 2008 | UCAR |



For more information see the Validation Report for Reprocessed Level 3 gridded data.



The ROM SAF product archive contains the resulting Level 1B, 2A, 2B and 2C data (atmospheric profiles), and Level 3 data (gridded monthly means) formatted as netCDF files, with a subset of the atmospheric profiles formatted as BUFR. The definition of processing

levels are as follows:



 Level 1A: excess phases, amplitudes, satellite orbital data (input)

 Level 1B: bending angle

 Level 2A: refractivity, dry temperature

 Level 2B: temperature, humidity, pressure

 Level 2C: surface pressure, tropopause height

 Level 3: gridded monthly means of all geophysical variables



Documentation (including algorithm descriptions, product user manuals and validation reports) and access to the products are available at the Product Archive (https://www.romsaf.org/product_archive.php).



Kind regards

The ROM SAF Team




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