suppl-amt-6-565-2013.pdf (18.68Mb)

(1)

limb/nadir matching and comparison to Oslo CTM2 simulations:

Supplementary material

A. Hilboll ¹ , A. Richter ¹ , A. Rozanov ¹ , Ø. Hodnebrog ² , A. Heckel ^3,1 , S. Solberg ⁴ , F. Stordal ² , and J. P. Burrows ¹

1 Institute of Environmental Physics, University of Bremen, P.O. Box 330440, 28834 Bremen, Germany

2 Univeristy of Oslo, Oslo, Norway

3 Department of Geography, Swansea University, Swansea, UK

4 Norwegian Institute for Air Research, Kjeller, Norway

Abstract. This document contains supplementary material to the manuscript Improvements to the retrieval of tropo- spheric NO 2 from satellite – stratospheric correction using SCIAMACHY limb/nadir matching and comparison to Oslo CTM2 simulations (Hilboll et al., 2013).

1 Climatological comparison SCIAMACHY limb / Oslo CTM2

Expanding on Fig. 9 from Hilboll et al. (2013), we show the climatological comparison between SCIAMACHY limb measurements and Osloc CTM2 simulations for the years 2003–2007 for all months in Fig. 1.

To be able to compare to SCIAMACHY nadir mea- surements, we additionally show the climatological differ- ences between VCD ^0nadir _strat and the stratospheric columns from SCIAMACHY limb and Oslo CTM2 in Figs. 2 and 3, respec- tively. The large positive values in these two Figures can be associated with tropospheric pollution.

2 Daily maps of SCD _trop NO ₂

Expanding on Fig. 20 from Hilboll et al. (2013), we show global maps of daily SCD _trop NO ₂ for the additional days al- ready shown by Beirle et al. (2010) in Fig. 4.

3 Zonal variability of stratospheric NO ₂

Expanding on Figs. 10–14 from Hilboll et al. (2013), we show the zonal variation of stratospheric NO ₂ for all global 5° latitude bands for Jan and Aug 2006 in Figs. 5 and 6, respectively. As in the main manuscript, the plots show the

actual stratospheic NO ₂ load, i.e. limb measurements and model simulations are adjusted to the level of the nadir mea- surements over the Pacific Ocean, and all three datasets are subsequently corrected for a tropospheric influence on the nadir measurements in that meridional band. Details can be found in Sec. 4.1.4 of the main manuscript.

References

Beirle, S., K¨uhl, S., Puk¨ıte, J., and Wagner, T.: Retrieval of tropo- spheric column densities of NO ₂ from combined SCIAMACHY nadir/limb measurements, Atmos. Meas. Tech., 3, 283–299, doi:10.5194/amt-3-283-2010, 2010.

Hilboll, A., Richter, A., Rozanov, A., Hodnebrog, Ø., Heckel, A., Solberg, S., Stordal, F., and Burrows, J. P.: Improvements to the retrieval of tropospheric NO ₂ from satellite – stratospheric cor- rection using SCIAMACHY limb/nadir matching and compari- son to Oslo CTM2 simulations, Atmos. Meas. Tech., 6, 565–584, doi:10.5194/amt-6-565-2013, 2013.

Sentence.

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November

−4 −3 −2 −1 0 1 2 3 4

∆ VCD

_strat

NO

₂

[10

¹⁴

molec cm

⁻²

] September

July May March

January February

April

June

August

October

December

Fig. 1. Climatological differences VCD ⁰ _strat ^limb −VCD ^0mod _strat between SCIAMACHY limb measurements and Oslo CTM2 simulations, for the

years 2003–2007, offset to vanish over the Pacific Ocean.

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November

−4 −3 −2 −1 0 1 2 3 4

∆ VCD

_strat

NO

₂

[10

¹⁴

molec cm

⁻²

] September

July May March

January February

April

June

August

October

December

Fig. 2. Climatological differences VCD ^0nadir _strat − VCD ⁰ ^limb _strat between stratospheric NO ₂ columns from SCIAMACHY nadir and limb measure-

ments, for the years 2003-2007.

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November

−4 −3 −2 −1 0 1 2 3 4

∆ VCD

_strat

NO

₂

[10

¹⁴

molec cm

⁻²

] September

July May March

January February

April

June

August

October

December

Fig. 3. Climatological differences VCD ⁰ ^nadir _strat − VCD ^0mod _strat between stratospheric NO ₂ columns from SCIAMACHY nadir measurements and

Oslo CTM2 simulations, for the years 2003-2007.

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24 Oct 2005

−5 −4 −3 −2 −1 0 1 2 3 4 5

SCD _trop NO ₂ [10 ¹⁵ molec cm ⁻² ]

20 Jul 2005 02 Apr 2005

Fig. 4. SCD trop NO ₂ for the three days 02 Apr 2005 (top), 20 Jul 2005 (centre), and 24 Oct 2005 (bottom). These are the days which are

shown in Beirle et al. (2010).

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180 120 60 0 60 120 180 Longitude [°]

0.0 0.5 1.0 1.5 2.0

VCDstratNO2[1015moleccm2]

no data

90 S 85 S

180 120 60 0 60 120 180

Longitude [°]

4.4 4.6 4.8 5.0 5.2 5.4

85 S 80 S

SCIAMACHY limb Oslo CTM2 SCIAMACHY nadir reference sector

180 120 60 0 60 120 180

Longitude [°]

4.4 4.6 4.8 5.0 5.2 5.4

80 S 75 S

180 120 60 0 60 120 180

Longitude [°]

4.2 4.4 4.6 4.8 5.0 5.2

75 S 70 S

180 120 60 0 60 120 180

Longitude [°]

4.2 4.4 4.6 4.8 5.0 5.2

70 S 65 S

180 120 60 0 60 120 180

Longitude [°]

3.8 4.0 4.2 4.4 4.6

65 S 60 S

180 120 60 0 60 120 180

Longitude [°]

3.6 3.8 4.0 4.2 4.4

60 S 55 S

180 120 60 0 60 120 180

Longitude [°]

3.0 3.2 3.4 3.6 3.8 4.0

55 S 50 S

180 120 60 0 60 120 180

Longitude [°]

2.8 3.0 3.2 3.4 3.6

50 S 45 S

180 120 60 0 60 120 180

Longitude [°]

2.4 2.6 2.8 3.0 3.2

45 S 40 S

180 120 60 0 60 120 180

Longitude [°]

2.4 2.6 2.8 3.0 3.2

40 S 35 S

180 120 60 0 60 120 180

Longitude [°]

2.4 2.6 2.8 3.0 3.2

35 S 30 S

180 120 60 0 60 120 180

Longitude [°]

2.0 2.2 2.4 2.6 2.8 3.0

30 S 25 S

180 120 60 0 60 120 180

Longitude [°]

1.6 1.8 2.0 2.2 2.4 2.6

25 S 20 S

180 120 60 0 60 120 180

Longitude [°]

1.4 1.6 1.8 2.0 2.2

20 S 15 S

180 120 60 0 60 120 180

Longitude [°]

0.8 1.0 1.2 1.4 1.6 1.8

15 S 10 S

180 120 60 0 60 120 180

Longitude [°]

0.8 1.0 1.2 1.4 1.6 1.8

10 S 5 S

180 120 60 0 60 120 180

Longitude [°]

0.8 1.0 1.2 1.4 1.6 1.8

5 S 0

180 120 60 0 60 120 180

Longitude [°]

0.8 1.0 1.2 1.4 1.6 1.8

0 5 N

180 120 60 0 60 120 180

Longitude [°]

0.8 1.0 1.2 1.4 1.6 1.8

5 N 10 N

180 120 60 0 60 120 180

Longitude [°]

0.8 1.0 1.2 1.4 1.6 1.8

10 N 15 N

180 120 60 0 60 120 180

Longitude [°]

1.0 1.2 1.4 1.6 1.8 2.0 2.2

15 N 20 N

180 120 60 0 60 120 180

Longitude [°]

1.0 1.2 1.4 1.6 1.8 2.0 2.2

20 N 25 N

180 120 60 0 60 120 180

Longitude [°]

1.0 1.2 1.4 1.6 1.8 2.0 2.2

25 N 30 N

180 120 60 0 60 120 180

Longitude [°]

0.0 0.5 1.0 1.5 2.0 2.5 3.0

30 N 35 N

180 120 60 0 60 120 180

Longitude [°]

0.0 0.5 1.0 1.5 2.0 2.5 3.0

35 N 40 N

180 120 60 0 60 120 180

Longitude [°]

0.0 0.5 1.0 1.5 2.0 2.5 3.0

40 N 45 N

180 120 60 0 60 120 180

Longitude [°]

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5

45 N 50 N

180 120 60 0 60 120 180

Longitude [°]

0.0 0.5 1.0 1.5 2.0 2.5 3.0

50 N 55 N

180 120 60 0 60 120 180

Longitude [°]

0.0 0.5 1.0 1.5 2.0

55 N 60 N

180 120 60 0 60 120 180

Longitude [°]

0.0 0.5 1.0 1.5 2.0

60 N 65 N

180 120 60 0 60 120 180

Longitude [°]

0.0 0.5 1.0 1.5 2.0

65 N 70 N

180 120 60 0 60 120 180

Longitude [°]

0.0 0.5 1.0 1.5 2.0

no data

70 N 75 N

180 120 60 0 60 120 180

Longitude [°]

0.0 0.5 1.0 1.5 2.0

no data

75 N 80 N

180 120 60 0 60 120 180

Longitude [°]

0.0 0.5 1.0 1.5 2.0

no data

80 N 85 N

180 120 60 0 60 120 180

Longitude [°]

0.0 0.5 1.0 1.5 2.0

no data

85 N 90 N

VCD _strat zonal variability: January 2006

Fig. 5. Zonal variation of stratospheric NO ₂ columns from SCIAMACHY nadir (black), SCIAMACHY limb (red), and Oslo CTM2 (blue)

for Jan 2006.

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180 120 60 0 60 120 180 Longitude [°]

0.0 0.5 1.0 1.5 2.0

no data

90 S 85 S

180 120 60 0 60 120 180

Longitude [°]

0.0 0.5 1.0 1.5 2.0

no data

85 S 80 S

SCIAMACHY limb Oslo CTM2 SCIAMACHY nadir reference sector

180 120 60 0 60 120 180

Longitude [°]

0.0 0.5 1.0 1.5 2.0

no data

80 S 75 S

180 120 60 0 60 120 180

Longitude [°]

0.0 0.2 0.4 0.6 0.8 1.0

75 S 70 S

180 120 60 0 60 120 180

Longitude [°]

0.0 0.2 0.4 0.6 0.81.01.2 1.4 1.6 1.8

70 S 65 S

180 120 60 0 60 120 180

Longitude [°]

0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

65 S 60 S

180 120 60 0 60 120 180

Longitude [°]

0.8 1.0 1.2 1.4 1.6 1.8 2.0

60 S 55 S

180 120 60 0 60 120 180

Longitude [°]

0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8

55 S 50 S

180 120 60 0 60 120 180

Longitude [°]

1.0 1.2 1.4 1.6 1.8 2.0

50 S 45 S

180 120 60 0 60 120 180

Longitude [°]

1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0

45 S 40 S

180 120 60 0 60 120 180

Longitude [°]

1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2

40 S 35 S

180 120 60 0 60 120 180

Longitude [°]

1.6 1.8 2.0 2.2 2.4 2.6

35 S 30 S

180 120 60 0 60 120 180

Longitude [°]

2.0 2.5 3.0 3.5

30 S 25 S

180 120 60 0 60 120 180

Longitude [°]

1.6 1.8 2.0 2.2 2.4 2.6 2.8

25 S 20 S

180 120 60 0 60 120 180

Longitude [°]

1.4 1.6 1.8 2.0 2.2 2.4

20 S 15 S

180 120 60 0 60 120 180

Longitude [°]

1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0

15 S 10 S

180 120 60 0 60 120 180

Longitude [°]

1.5 2.0 2.5

10 S 5 S

180 120 60 0 60 120 180

Longitude [°]

1.0 1.2 1.4 1.6 1.8 2.0 2.2

5 S 0

180 120 60 0 60 120 180

Longitude [°]

1.0 1.2 1.4 1.6 1.8 2.0

0 5 N

180 120 60 0 60 120 180

Longitude [°]

1.2 1.4 1.6 1.8 2.0

5 N 10 N

180 120 60 0 60 120 180

Longitude [°]

1.2 1.4 1.6 1.8 2.0

10 N 15 N

180 120 60 0 60 120 180

Longitude [°]

1.2 1.4 1.6 1.8 2.0 2.2 2.4

15 N 20 N

180 120 60 0 60 120 180

Longitude [°]

1.5 2.0 2.5 3.0 3.5 4.0 4.5

20 N 25 N

180 120 60 0 60 120 180

Longitude [°]

1.5 2.0 2.5 3.0 3.5 4.0

25 N 30 N

180 120 60 0 60 120 180

Longitude [°]

1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

30 N 35 N

180 120 60 0 60 120 180

Longitude [°]

2.0 2.5 3.0 3.5 4.0 4.5

35 N 40 N

180 120 60 0 60 120 180

Longitude [°]

2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4

40 N 45 N

180 120 60 0 60 120 180

Longitude [°]

2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4

45 N 50 N

180 120 60 0 60 120 180

Longitude [°]

2.0 2.5 3.0 3.5 4.0

50 N 55 N

180 120 60 0 60 120 180

Longitude [°]

2.4 2.6 2.8 3.0 3.2 3.4

55 N 60 N

180 120 60 0 60 120 180

Longitude [°]

2.4 2.6 2.8 3.0 3.2

60 N 65 N

180 120 60 0 60 120 180

Longitude [°]

2.6 2.8 3.0 3.2 3.4

65 N 70 N

180 120 60 0 60 120 180

Longitude [°]

3.0 3.2 3.4 3.6 3.8

70 N 75 N

180 120 60 0 60 120 180

Longitude [°]

3.4 3.6 3.8 4.0 4.2

75 N 80 N

180 120 60 0 60 120 180

Longitude [°]

3.4 3.6 3.8 4.0 4.2

80 N 85 N

180 120 60 0 60 120 180

Longitude [°]

4.0 4.2 4.4 4.6 4.8 5.0

85 N 90 N

suppl-amt-6-565-2013.pdf (18.68Mb)

limb/nadir matching and comparison to Oslo CTM2 simulations:

Supplementary material

A. Hilboll 1 , A. Richter 1 , A. Rozanov 1 , Ø. Hodnebrog 2 , A. Heckel 3,1 , S. Solberg 4 , F. Stordal 2 , and J. P. Burrows 1

1 Institute of Environmental Physics, University of Bremen, P.O. Box 330440, 28834 Bremen, Germany

2 Univeristy of Oslo, Oslo, Norway

3 Department of Geography, Swansea University, Swansea, UK

4 Norwegian Institute for Air Research, Kjeller, Norway

Abstract. This document contains supplementary material to the manuscript Improvements to the retrieval of tropo- spheric NO 2 from satellite – stratospheric correction using SCIAMACHY limb/nadir matching and comparison to Oslo CTM2 simulations (Hilboll et al., 2013).

1 Climatological comparison SCIAMACHY limb / Oslo CTM2

Expanding on Fig. 9 from Hilboll et al. (2013), we show the climatological comparison between SCIAMACHY limb measurements and Osloc CTM2 simulations for the years 2003–2007 for all months in Fig. 1.

2 Daily maps of SCD trop NO 2

Expanding on Fig. 20 from Hilboll et al. (2013), we show global maps of daily SCD trop NO 2 for the additional days al- ready shown by Beirle et al. (2010) in Fig. 4.

3 Zonal variability of stratospheric NO 2

Expanding on Figs. 10–14 from Hilboll et al. (2013), we show the zonal variation of stratospheric NO 2 for all global 5° latitude bands for Jan and Aug 2006 in Figs. 5 and 6, respectively. As in the main manuscript, the plots show the

References

Beirle, S., K¨uhl, S., Puk¨ıte, J., and Wagner, T.: Retrieval of tropo- spheric column densities of NO 2 from combined SCIAMACHY nadir/limb measurements, Atmos. Meas. Tech., 3, 283–299, doi:10.5194/amt-3-283-2010, 2010.

Sentence.

November

∆ VCD

NO

[10

molec cm

] September

July May March

January February

April

June

August

October

December

Fig. 1. Climatological differences VCD 0 strat limb −VCD 0mod strat between SCIAMACHY limb measurements and Oslo CTM2 simulations, for the

years 2003–2007, offset to vanish over the Pacific Ocean.

November

∆ VCD

NO

[10

molec cm

] September

July May March

January February

April

June

August

October

December

Fig. 2. Climatological differences VCD 0nadir strat − VCD 0 limb strat between stratospheric NO 2 columns from SCIAMACHY nadir and limb measure-

ments, for the years 2003-2007.

November

∆ VCD

NO

[10

molec cm

] September

July May March

January February

April

June

August

October

December

Fig. 3. Climatological differences VCD 0 nadir strat − VCD 0mod strat between stratospheric NO 2 columns from SCIAMACHY nadir measurements and

Oslo CTM2 simulations, for the years 2003-2007.

24 Oct 2005

−5 −4 −3 −2 −1 0 1 2 3 4 5

SCD trop NO 2 [10 15 molec cm −2 ]

20 Jul 2005 02 Apr 2005

Fig. 4. SCD trop NO 2 for the three days 02 Apr 2005 (top), 20 Jul 2005 (centre), and 24 Oct 2005 (bottom). These are the days which are

shown in Beirle et al. (2010).

no data

SCIAMACHY limb Oslo CTM2 SCIAMACHY nadir reference sector

no data

no data

no data

no data

VCD strat zonal variability: January 2006

Fig. 5. Zonal variation of stratospheric NO 2 columns from SCIAMACHY nadir (black), SCIAMACHY limb (red), and Oslo CTM2 (blue)

for Jan 2006.

no data

no data

A. Hilboll ¹ , A. Richter ¹ , A. Rozanov ¹ , Ø. Hodnebrog ² , A. Heckel ^3,1 , S. Solberg ⁴ , F. Stordal ² , and J. P. Burrows ¹

2 Daily maps of SCD _trop NO ₂

Expanding on Fig. 20 from Hilboll et al. (2013), we show global maps of daily SCD _trop NO ₂ for the additional days al- ready shown by Beirle et al. (2010) in Fig. 4.

3 Zonal variability of stratospheric NO ₂

Expanding on Figs. 10–14 from Hilboll et al. (2013), we show the zonal variation of stratospheric NO ₂ for all global 5° latitude bands for Jan and Aug 2006 in Figs. 5 and 6, respectively. As in the main manuscript, the plots show the

Beirle, S., K¨uhl, S., Puk¨ıte, J., and Wagner, T.: Retrieval of tropo- spheric column densities of NO ₂ from combined SCIAMACHY nadir/limb measurements, Atmos. Meas. Tech., 3, 283–299, doi:10.5194/amt-3-283-2010, 2010.

Fig. 1. Climatological differences VCD ⁰ _strat ^limb −VCD ^0mod _strat between SCIAMACHY limb measurements and Oslo CTM2 simulations, for the

Fig. 2. Climatological differences VCD ^0nadir _strat − VCD ⁰ ^limb _strat between stratospheric NO ₂ columns from SCIAMACHY nadir and limb measure-

Fig. 3. Climatological differences VCD ⁰ ^nadir _strat − VCD ^0mod _strat between stratospheric NO ₂ columns from SCIAMACHY nadir measurements and

SCD _trop NO ₂ [10 ¹⁵ molec cm ⁻² ]

Fig. 4. SCD trop NO ₂ for the three days 02 Apr 2005 (top), 20 Jul 2005 (centre), and 24 Oct 2005 (bottom). These are the days which are

VCD _strat zonal variability: January 2006

Fig. 5. Zonal variation of stratospheric NO ₂ columns from SCIAMACHY nadir (black), SCIAMACHY limb (red), and Oslo CTM2 (blue)

VCD _strat zonal variability: August 2006

Fig. 6. Zonal variation of stratospheric NO ₂ columns from SCIAMACHY nadir (black), SCIAMACHY limb (red), and Oslo CTM2 (blue)