Wednesday, 15 January 2025: 8:45 AM
222 (New Orleans Ernest N. Morial Convention Center)
The validity of Observing System Simulation Experiments (OSSEs) can be strengthened by using forecast models that more closely resemble current or future operational systems. To that end, NOAA’s Quantitative Observing System Assessment Program (QOSAP) has upgraded its latest OSSEs to utilize Global Forecast System (GFS) Version 17, to become operational in 2025. While GFS V17 is planned to have multiple model components including ocean, ice, etc., only the atmosphere component is being utilized for now. This is both in order to allow more direct comparisons to the QOSAP GFS V16 operational system and due to what systems were available in Spring of 2024. Error characteristics will be compared to the previous QOSAP OSSE system, and preliminary results from V17 OSSEs will be discussed.
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