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The CAMS forecast e-suite (experiment gznv) was started on 2018-06-01 based on IFS CY45R1 to couple the new the GHG analysis experiment  (gwx3) running 4-days behind real time and the high resolution cyclic forecast run. This new experiment benefits from a couple of bug fixes in the modelled biogenic fluxes which result in an improved seasonal cycle in the northern hemisphere and some degradation in the tropics.

Main features are:

  • The experiment was initialized from the GHG analysis experiment gwx3.

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

  • Resolution: Tco1279 (9km) and 137 vertical levels
  • 5-day forecast from 00UTC
  • IFS cycle 45R1
  • 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
  • branch: paf_CY45R1_paf_CY45R1_GHG_CARBONTRAC_bugfixes
  • New tracer mass fixer: Diamantakis and Agusti-Panareda (2017) with BETA value of 2.

Changes introduced during production affecting the quality of the products

real dateexp datedescription of change
 20190911 20190911Extension of forecast from T+120 to T+144 (to support field experiments)

Flux updates

real date  expdatedescription of change
2018081520180730CH4 flux bug fix associated with the temporal interpolation of monthly mean fluxes affecting second half of December.
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