Table S1 Figures S1 to S10

Transcription

1 Table S Figures S to S

2 Table S. Comparison and inter-correlation between AeroCom I and AeroCom II individual models bias in simulating CALIOP-derived Zα-6 km and AOD diagnostics over the 2 selected regions. Nlev- km is the number of model levels below km. Significant correlation (p <.5; bold) are highlighted (see also Figure S7). Model performance metrics R correlation coefficients N = 8 models MAM AeroCom I AeroCom II AeroCom II versus AeroCom I AeroCom II minus AeroCom I Zα-6 km bias : AOD bias Zα-6 km bias : Nlev - km AOD bias : Nlev - km.2 Zα-6 km bias : AOD bias -.5 Zα-6 km bias : Nlev - km -.57 AOD bias : Nlev - km.27.6 Zα-6 km bias AOD bias.295 Δ Zα-6 km bias : ΔAOD bias -.84 Δ Zα-6 km bias : Δ Nlev - km -.58 Δ AOD bias : Δ Nlev - km.8 JJA SON DJF R correlation coefficients N =7 models (GISS-ModelE excluded) JJA SON DJF MAM

3 Figure Sa. 27 mean annual absolute extinction coefficient (km-) profiles at 52 nm over the 2 selected regions, as derived from the AeroCom-CALIOP gridded product (black; this study) and compared to the ones derived from regional averaging ([K2]). The mean extinction height (km) at 52 nm over the -6 km altitude range (ZȺ -6 km) is also reported.

4 Figure Sb. As Figure Sa but for the mean annual normalized (AOD =) aerosol extinction coefficient (km-) profiles (see discussion section for details).

5 Figure S2a. 27 mean annual absolute aerosol extinction coefficient (km-) profiles at 52 nm over the 2 selected regions, as derived from K2 (solid blue) and Winker et al. [2] (W, dotted black) methodologies. Our study shows that K2 profiles, after correcting for the overlapping aerosol layers (solid green) and applying Winker et al. [2] Vertical Resolution (VR) and Low Troposphere Processing method (LTP) still significantly differ from W profiles.

6 Figure S2b. As Figure S2a but for the mean annual normalized aerosol extinction coefficient (km-) profiles. The ZȺ -6 km extinction heights are reported (see discussion section for details).

7 .6 r =.66 r =.98.4 o_.2,'.. -* ' DJF. t- MAM..6 r =.98.4 r =.66 I o J.2... /t- '.2 JJA.4 MODIS AOD Northern Hemisphere ' L. SON.2.4 MODIS AOD.6 Southern Hemisphere Figure Sa mean seasonal AOD over the 7 N to 7 S latitude range (4 bands of ), as derived from the AeroCom CALIOP-derived product, compared to MODIS measurements for land. Significant (p <.5) regression lines are plotted.

8 . r = L o_ r =.824. / DJF MAM.. r =.78.2 o_ r = =f-. JJA.2 MODIS AOD Northern Hemisphere L. {,-... SON.2 MODIS AOD. Southern Hemisphere Figure Sb. As Figure Sa but over ocean (different scales are used).

9 r =.2 Ê -=- t2 -=- E E u e a. ::::; * t2 u e a. ::::; ----*' E MAM..2.4 CALIOP-AeroCom AOD -=- E :: , l:s N E u e Cil a. ::::; JJA,... -it * SON u.6.6 r =.546 Ê -t.4.2 CALIOP-AeroCom AOD >-- a. ::::;.6 u ;:t, u. E l:s N e r =.58 -=- Cil u CALIOP-AeroCom AOD --,,-:, E DJF. l:s N u Ê t 2 r Cil E - l:s N r =.76 Ê..4.2 CALIOP-AeroCom AOD.6 Selected studied regions : lndustrial (N=4), Dust (N=2), Biomass Burning (N=), Maritime (N=) Figure S mean seasonal Zα -6 km extinction height and AOD, as derived from the AeroCom CALIOP product over the 2 selected regions. Significant (p <.5) regression lines are plotted.

10 AOD : JJA season.7..6 Z 6 km (km) : JJA season NAT CAT NWP EUS WEU IND ECN SAM CAF SAF NAF WCN NAT CAT NWP EUS WEU IND ECN SAM CAF SAF NAF WCN AOD : SON season.7.6. Z 6 km (km) : SON season NAT CAT NWP EUS WEU IND ECN SAM CAF SAF NAF WCN 26 Min Max NAT CAT NWP EUS WEU IND ECN SAM CAF SAF NAF WCN 26 Min Max Figure S5. JJA (top) and SON (bottom) mean AOD (left) and Zα -6 km extinction height (right) over the 2 selected regions: 26 compared to values.

11 #!" * * * * & * * * * * * * * $ * * %"# )* %"# * * ' ' ' 6 6 * ( * Figure S6. Mean annual AOD as derived from the AeroCom II models (2, 26), compared to AeroCom CALIOP-derived gridded product (27-29) over the 2 selected regions. Significant (p <.5) regression lines are plotted.

12 MAM Change in Z -6 km bias SON. Change in Z -6 km bias Change in Nlev - km DJF..2 - JJA Change in Nlev - km x GISS-ModelE, x GOCART, x SPRINTARS, x LSCE, x ECHAM-HAM, x PNNL, x Oslo_CTM2, x CAM4_Oslo Figure S7. Change in Z -6 km seasonal bias over the 2 selected regions between AeroCom I and AeroCom II simulations, as a function of the change in the number of model levels below km (Nlev - km). The regression coefficients are provided in Table S.

13 !!!!, /, %(*! '#!!! 2! /- ' ' /- )$& - $))!!!!! /.. ' /. ''"!!!!!!!!!!!!!!! /, '#!!!!!!!!, #&!!!!!!!! Figure S8a. ZȺ -6 km mean annual extinction height over land (7 N to 7 S latitude range ; 4 bands of ), as derived from the AeroCom II models (2, 26), compared to AeroCom CALIOP-derived gridded product (27-29). Significant (p <.5) regression lines are plotted.

14 Figure S8b. As Figure S8a but over ocean.

15 Figure S9a. As Figure S8a but for the mean annual AOD over land.

16 Figure S9b. As Figure S8b but for the mean annual AOD over ocean.

17 Winker et al. [2] New NASA product versus AeroCom-CALIOP product Winker et al. [2] New NASA product versus MODIS Selected studied regions : lndustrial (N=4), Dust (N=2), Biomass Burning (N=), Maritime (N=) Figure S. 27 mean annual ZȺ -6 km extinction height and AOD over the 2 selected regions as derived from the (a) previous [Winker et al., 2] and (b) new version of the NASA product: comparison to the AeroCom-CALIOP product (top and middle plots) and to MODIS measurements (bottom plots).