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The CAMS forecast 46R1 o-suite (experiment h9sp) was started on 2019-01-01 based on IFS CY46R1. It provides a high resolution forecast (tco1279 L137) in real time, starting from the GHG analysis experiment (h72g) running 4-days behind real time to real and the high resolution NWP analysis. The main features of are:

IFS branch 46R1.20190910
Resolution: Tco1279 (9km) and 137 vertical levels
Initial meteo from NWP OPER stream (early delivery) in order to start the forecast half a day earlier.
The experiment is initialised (with nudging) from the GHG analysis experiment h72g at 00UTC (the coupling with the analysis is done by merging the 4-day forecast from GHG delayed analysis experiment and the cyclic high resolution forecast).
5-day forecast from 00UTC
Coupled to CTESSEL Net Ecosystem Exchange surface fluxes.
New CAMS-GLOB-ANTv2.1 anthropogenic emissions for 2018 (2019 emissions were not available on time).
GFAS fire emissions 1 day behind real time.
Roedenbeck et al. (2013) CO2 air-sea monthly fluxes for 2017 (Jena-CarboScope v1.6 based on SOCAT data).
Tracer mass fixer: Diamantakis and Agusti-Panareda (2017) with BETA value of 2.

Changes introduced during production affecting the quality of the products

real date	exp date	description of change

Flux updates

real date	exp date	description of change
20200106	20200101	CO emissions from MACCity_gfas_rean_v2 (consistent with CAMS re-analysis)
20191216	20200101	CO2 emissions from CAMS-GLOB-ANTv2.1 2020
20191216	20200101	CH4 emissions from CAMS-GLOB-ANTv2.1 2020