Comparison of ground-based FTIR measurements and EMAC model simulations of trace-gases columns near St. Petersburg (Russia) in 2009-2012 Yana Virolainen (1), Maria Makarova (1), Dmitry Ionov (1), Alexander Polyakov (1), Oliver Kirner (2), Yury Timofeyev (1), Anatoly Poberovsky (1), and Hamud Imhasin (1) (1)St.Petersburg State University, St. Petersburg, Russian Federation, (2) Steinbuch Centre for Computing, Karlsruhe Institute of Technology, Karlsruhe, Germany Instrume ntation solar FTIR- spectrometer Bruker 125HR Spectral resoluti on ~0.005 cm -1 Location Peterhof - St. Petersburg (59.88 N, 29.82 E) Time 2009-2012 Gases Spectral windows, сm -1 Random error of measurement Influenced gases H 2 O 1110.00-1113.00 1117.30-1117.90 1120.10-1122.00 1196.00-1200.40 1220.50-1221.50 1251.75-1253.00 0.9-1.3% N 2 O, CO 2 , CH 4 , O 3 O 3 991.25-993.80 1001.47-1003.04 1005.00-1006.90 1007.35-1009.00 1011.15-1013.55 1-2% H 2 O, CO 2 , C 2 H 4 ClONO 2 779.0-779.8 780.0-780.3 780.3-781.3 15-20% H 2 O, CO 2 , O 3 , HNO 3 , C 2 H 2 HNO 3 867.00-869.60 872.80-875.20 1-2% H 2 O, CO 2 , NO 2 HCl 2925.75-2926.00 2727.73-2727.83 2775.70-2775.80 2925.80-2926.00 2-5% CH 4 , H 2 O CH 4 2613.7-2615.4 2921.0–2921.6 2835.5-2835.8 0.3-0.5% H 2 O, HDO, CO 2 , NO 2 CO 2057.7-2058.0 2069.56-2069.76 2157.5-2159.15 1.1-1.4% O 3 ,CO 2 ,OCS,N 2 O ,H 2 O NO 2 2914.590-2914.707 8-12% CH 4 , HDO The EMAC model is a numerical chemistry and climate simulation system that includes sub-models describing troposphere and middle atmosphere processes and their interaction with oceans, land and human influences. The simulation includes a comprehensive atmospheric chemistry setup for the troposphere, the stratosphere and the lower mesosphere. We applied the EMAC (ECHAM5 version 5.3.01, MESSy version 1.10) in the T42L39MAresolution, i.e. with a spherical truncation of T42 (corresponding to a quadratic Gaussian grid of approximately 2.8 by 2.8 degrees in latitude and longitude) with 39 vertical hybrid pressure levels up to Gas (number of days) Method Mean ± variability, cm -2 Bias ± SD, % Correlati on coefficie nt H 2 O (191) FTIR (4.49±2.99) × 10 22 -3.1 ± 21.5 0.95±0.01 EMAC (4.62±2.79) × 10 22 O 3 (189) FTIR (9.25±1.24) × 10 18 -12.5 ± 8.2 0.91±0.01 EMAC (10.4±1.7) × 10 18 ClONO 2 (89) FTIR (1.12±0.50) × 10 15 -0.7 ± 32.5 0.70±0.06 EMAC (1.13±0.41) × 10 15 HNO 3 (89) FTIR (2.39±0.51) × 10 16 +33.2 ± 16.8 0.65±0.06 EMAC (1.60±0.44) × 10 16 HCl (309) FTIR (4.36±0.60) × 10 15 +22 ± 8.1 0.81±0.02 EMAC (3.40±0.44) × 10 15 CH (232) FTIR (3.83±0.06) × 10 19 +1.4 ±
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Comparison of ground-based FTIR measurements and EMAC model simulations of trace-gases columns near St. Petersburg (Russia) in 2009-2012Yana Virolainen (1), Maria Makarova (1), Dmitry Ionov (1), Alexander Polyakov (1), Oliver Kirner (2), Yury Timofeyev (1), Anatoly Poberovsky (1), and Hamud
Imhasin (1)(1)St.Petersburg State University, St. Petersburg, Russian Federation, (2) Steinbuch Centre for Computing, Karlsruhe Institute of Technology, Karlsruhe,
Germany
Instrumentation
solar FTIR-spectrometer Bruker 125HR
Spectral resolutio
n~0.005 cm-1
LocationPeterhof - St. Petersburg (59.88 N, 29.82 E)
The EMAC model is a numerical chemistry and climate simulation system that includes sub-models describing troposphere and middle atmosphere processes and their interaction with oceans, land and human influences. The simulation includes a comprehensive atmospheric chemistry setup for the troposphere, the stratosphere and the lower mesosphere. We applied the EMAC (ECHAM5 version 5.3.01, MESSy version 1.10) in the T42L39MAresolution, i.e. with a spherical truncation of T42 (corresponding to a quadratic Gaussian grid of approximately 2.8 by 2.8 degrees in latitude and longitude) with 39 vertical hybrid pressure levels up to 0.01 hPa.
Gas (number of days)
Method Mean ± variability, cm-2
Bias ± SD, %
Correlation
coefficient
H2O (191)
FTIR (4.49±2.99) × 1022-3.1 ± 21.5
0.95±0.01EMAC (4.62±2.79) × 1022
O3 (189)FTIR (9.25±1.24) × 1018
-12.5 ± 8.2
0.91±0.01EMAC (10.4±1.7) × 1018
ClONO2 (89)
FTIR (1.12±0.50) × 1015-0.7 ± 32.5
0.70±0.06EMAC (1.13±0.41) × 1015
HNO3 (89)
FTIR (2.39±0.51) × 1016+33.2 ±
16.80.65±0.0
6EMAC (1.60±0.44) × 1016
HCl (309)FTIR (4.36±0.60) × 1015 +22 ±
8.10.81±0.0
2EMAC (3.40±0.44) × 1015
CH4 (232)FTIR (3.83±0.06) × 1019 +1.4 ±
1.00.82±0.0
2EMAC (3.77±0.04) × 1019
CO (452)FTIR (2.12±0.33) ×1018 +14.0 ±
5.70.93±0.0
1EMAC (1.82±0.31)×1018
NO2 (233)
FTIR (3.32±1.10) × 1015+14.1 ±
13.20.92±0.0
1EMAC (2.85±1.05) × 1015
Comparison of ground-based FTIR measurements and EMAC model simulations of trace-gases columns near St. Petersburg (Russia) in 2009-2012
Seasonal cycle
0 1 2 3 4 5 6 7 8 9 10 11 122009-2012
3,7x1019
3,8x1019
3,8x1019
3,9x1019
3,9x1019
4,0x1019
4,0x1019
CH
4 col
umn,
cm
-2
Monthly meanFTIR (232)EMAC (232)
0,511,522,53
(FTIR-E
MA
C)/FTIR
, %
1 2 3 4 5 6 7 8 9 10 11 122009-2012
4,0x1014
8,0x1014
1,2x1015
1,6x1015
2,0x1015
2,4x1015
ClO
NO
2 col
umn,
cm
-2 Monthly meanFTIR (191)EMAC (191)EMAC (all)
-30-20-1001020
(FTIR-E
MA
C)/FTIR
, %
1 2 3 4 5 6 7 8 9 10 11 122009-2012
8,0x1018
1,0x1019
1,2x1019
1,4x1019
Ozo
ne c
olum
n, c
m-2
Monthly meanFTIR (189)EMAC (189)EMAC (all)
-25-20-15-10-5
(FTIR-E
MA
C)/FTIR
, %
1 2 3 4 5 6 7 8 9 10 11 122009-2012
0,0x100
1,0x1015
2,0x1015
3,0x1015
4,0x1015
5,0x1015
NO
2 col
umn,
cm
-2
Monthly meanFTIR (233)EMAC (233)EMAC (all)
020406080
(FTIR-E
MA
C)/FTIR
, %
1 2 3 4 5 6 7 8 9 10 11 122009-2012
5,0x1015
1,0x1016
1,5x1016
2,0x1016
2,5x1016
3,0x1016
3,5x1016
HN
O3 c
olum
n, c
m-2
Monthly meanFTIR (89)EMAC (89)EMAC (all)
1020304050
(FTIR-E
MA
C)/FTIR
, %1 2 3 4 5 6 7 8 9 10 11 122009-2012
2,5x1015
3,0x1015
3,5x1015
4,0x1015
4,5x1015
5,0x1015
HC
l col
umn,
cm
-2
Monthly meanFTIR (309)EMAC (309)EMAC (all)
51015202530
(FTIR-E
MA
C)/FTIR
, %
1 2 3 4 5 6 7 8 9 10 11 122009-2012
0,0x100
2,0x1022
4,0x1022
6,0x1022
8,0x1022
1,0x1023
H2O
col
umn,
cm
-2
Monthly meanFTIR (191)EMAC (191)EMAC (all)
-20-1001020
(FTIR-E
MA
C)/FTIR
, %
0 1 2 3 4 5 6 7 8 9 10 11 122009-2012
1,2x1018
1,6x1018
2,0x1018
2,4x1018
2,8x1018
CO
col
umn,
cm
-2
Monthly meanFTIR (452)EMAC (452)
101214161820
(FTIR-E
MA
C)/FTIR
, %
Comparison of ground-based FTIR measurements and EMAC model simulations of trace-gases columns near St. Petersburg (Russia) in 2009-2012