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NRT Notification Detail
Start of dissemination of ROM SAF Spire NRT products on GTS
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DATE: 2022-10-27 15:51
TYPE: DATA
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Description
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Dear ROM SAF GTS User



Issued: 2022-10-27 15:50 UTC



The ROM SAF is pleased to announce the start of production of near real-time (NRT) products based on a subset of radio occultation (RO) measurements from the Spire constellation of nanosatellites. The products contain vertical profiles of atmospheric pressure, temperature, humidity and refractivity. The ROM SAF data generation is based on the Spire Level 1B NRT data (bending angle) provided by the EUMETSAT Secretariat.



Products:



The ROM SAF Spire NRT products consists of the following geophysical variables:



 Level 2A: refractivity, dry temperature (GRM-210, GRM-215)

 Level 2B: temperature, humidity, pressure (GRM-211, GRM-212, GRM-213)

 Level 2C: surface pressure (GRM-214)



Formats:



The products are provided with the status “demonstration”. They are formatted as netCDF files, with a subset of the products formatted as BUFR. In addition, the files include a copy of the EUMETSAT Secretariat Spire NRT bending angle (Level 1B) at vertical levels corresponding to those of the Level 2A products. The available archived data cover the time period from 17 October 2022 up to the present.



Dissemination:



The ROM SAF BUFR data are disseminated over the GTS, and are available shortly after they are processed (the GTS abbreviated bulletin headers are: IUT[A-L]14 EKMI). In addition, the netCDF data are published on the ROM SAF website in compressed tar (tgz) files containing a full day, though with the current day updated every 10 minutes with additional occultations as they are processed. Access to products is available (after registration) at the ROM SAF Product Archive (http://www.romsaf.org/product_archive.php).



License:



Please note that the ROM SAF Spire NRT products are made available under a "Global License". See the details at EUMETSAT here: https://www.eumetsat.int/commercial-radio-occultation-data-gts-soon (23 March 2022); link to the license: https://www.eumetsat.int/commercial-radio-occultation-data-usage-terms-conditions.



Kind regards

The ROM SAF Team




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