e-suite testing of the new CAMS high resolution CO₂ and CH₄  forecast (experiment gnoo) was started on 2016-03-08 to test the coupling between the GHG analysis experiment running 5-days behind real time and the high resolution cyclic forecast run previously as the NRT CO₂ and CH₄ forecast. New tagged tracers have been also introduced. This experiment also aims to replace the ghqy experiment for the period 20160308 and 20161231. The horizontal resolution and grid of the model have also been upgraded to 9km.

Main features are:

• The experiment was initialized from the GHG analysis experiment gg5m.

• The coupling with the analysis is done by merging the 4-day forecast from GHG delayed analysis experiment and the cyclic high resolution forecast.

• 24 h long forecast from 00UTC
• IFS cycle 43R1
• Coupled to CTESSEL Net Ecosystem Exchange surface fluxes.
• EDGARv4.2FT2010 anthropogenic emissions - scaled from 2011 with estimated and climatological trends for CO2.
• GFASv1.2 fire emissions
• Takahashi et al. (2009) CO2 air-sea CO2 flux climatology.
• IFS model resolution Tco1279L137
• operational meteorological analysis resolution
• time period 20160308 - 20170131
• branch: paf_CY43R1_CAMS_GHG_esuite
• New tracer mass fixer implemented based on Agusti-Panareda et al. (2007) with modified pressure weighting function (p replaced by dp) and BETA value of 1.5. This was necessary in order to avoid the creation of negative values near very strong point sources under stagnant conditions.

Changes introduced during production affecting the quality of the products

Flux updates