Monitoring atmospheric composition & climate
 
 
Change log for g4e2

The MACC NRT o-suite for CY40R2_MACC (experiment g4e2) was started on 2014-09-18 for the analysis cycle 2014091800. Main features are:

  • 120 h long forecast from 00UTC
  • IFS cycle 40R2
  • C-IFS-TM5
  • MACCity anthropogenic emissions - scaled over North America and Europe
  • GFASv1.2 fire emissions
  • C-IFS model resolution T255L60
  • analysis resolution T159/T95, using 12h 4D-Var and VarBC
  • time period 20140918 -
  • Blacklist: black_ds_macc_nrt_40r2
  • branch: stj_CY40R2_MACC_esuite

 

Satellite data usage for atmospheric composition

Aerosol
Assimilated: AQUA MODIS, TERRA MODIS
   
Ozone
Assimilated: SBUV/2 21-layer, OMI, MLS, GOME-2A, GOME-2B
Monitored: SEVIRI
   
Carbon Monoxide
Assimilated: IASI-A, IASI-B, MOPITT
Monitored:
   
NO2
Assimilated: OMI
Monitored: GOME-2A, GOME-2B
   
SO2
Assimilated: OMI
Monitored: GOME-2A, GOME-2B
   
HCHO  
Monitored GOME-2A

 

Changes introduced during production affecting the quality of the products

real date exp date description of change
20140608 2013120100 Start of o-suite
20140926 2014092600 Loss of atmospheric composition satellite data due to technical problems with ECFS system
20140929 2014092900 Chnage GFAS input from fx5h to g6ek (no impact)
20141101 20141110 Change in MOPITT data to lower values and lower standard deviation. The problem appears to have been the result of calibration error related to the 'calibration history' file which is used in Level 1 processing.  This resulted in excessively large radiance uncertainty values for the MOPITT 7D radiance, which in turn decreased the DFS values and resulted in CO retrievals overly-constrained by the a priori.  Problem fixed by NCAR and data back to normal on 20141111.
20141119 2014111900 Problem with CrIS radiance data, which is only being monitored. Taken out of fetchobs.
20141120 2014112000 Problem with CrIS fixed; data have been re-introduced.
20141219 2014121900 Bug fix in UV processor. Prognostic aerosol effect now activated

 

Blacklist changes

real date
  expdate
description of change
20140501 2013120100 Created black_ds_macc_nrt_40r2 from operational blacklist. Blacklist directory /home/rd/ecgems/data/40r2/an/
20140930 20140929 Blacklist IASI CO from Metop-A  because the meteorological IASI L2 data that are used in the retrieval change from V5 to V6 on 30 Sept. IASI CO data will be monitored passively while the impact of this change is being assessed.
20141007 20141007 Blacklist IASI CO from Metop-B after the change to V6. This was forgotton on 20140930.
20141202 20141202 Re-activate IASI CO from Metop-A and Metop-B. Generally, the IASI data agree better with MOPITT CO after the change to V6 meteorological IASI L2 data that are used in the retrieval. However, there are some very high IASI CO values over Indonesia, which could either be a real signal (high CO because of fires) or point to smoke particles impacting the radiance signal and hence the retrieval. These high CO values should be rejected by the first-guess check.
20150115 20150115 Blacklist MOPITT CO to monitor them because of some changes from NCEP in the data processing.
20150121 20150121 Re-activate MOPITT CO.
20150323 20150323 Blacklist MOPITT CO because the MOPITT instrument will be calibrated from 23 March - 3 April.
20150414 20150414 Re-activate MOPITT CO.
20150415 20150415 Tighten OMI SO2 blacklist criterion because of row anomalies and now only assimilate rows 1-20.
20150625 20150625 Blacklist GOME-2A&B O3 because of GOME2 PPF update to 6.1 on 25th June.