Table 6. Differences of Annual, Zonal Mean DeltaD Between Pairs of Data Sets (DeltaDeltaDobs = DeltaDi,obs,data - DeltaDj,obs,data), and Their Relative Contributionsa Data Sets Location Level Total Difference (DeltaDeltaDobs) (permil) Spatiotemporal Sampling Effect (DeltaDeltaDcolloc) (permil) Instrument Sensitivity Effect (DeltaDeltaDconvol) (permil) Residual (DeltaDeltaDerrors) (permil) MUSICA-TCCON Lauder total column 11 1 1 9 MUSICA-TCCON Wollongong total column 17 -3 9 11 MUSICA-SCIAMACHY Arrival Heights total column -154 -24 -3 -127 MUSICA-SCIAMACHY Lauder total column 74 7 -2 69 MUSICA-SCIAMACHY Wollongong total column 106 19 -2 90 FTIR-SCIAMACHY Izana total column -25 -83 -4 62 MUSICA-SCIAMACHY Jungfraujoch total column -77 -93 4 12 MUSICA-SCIAMACHY Karlsruhe total column 97 19 9 70 MUSICA-SCIAMACHY Eureka total column -42 -63 3 17 TCCON-SCIAMACHY Lauder total column 63 6 -3 61 TCCON-SCIAMACHY Wollongong total column 89 22 -11 77 TCCON-SCIAMACHY Darwin total column 54 3 -4 61 TCCON-SCIAMACHY Pasadena total column 38 -53 7 84 TCCON-SCIAMACHY Oklahoma total column 72 5 -14 81 TCCON-SCIAMACHY Wisconsin total column 46 -13 -9 67 TCCON-SCIAMACHY Bremen total column 48 26 -7 30 TCCON-SCIAMACHY Ny Alesund total column -24 -15 -7 -2 MUSICA-TES Lauder 600 hPa 63 24 -30 69 MUSICA-TES Wollongong 600 hPa 57 37 -26 45 MUSICA-TES Izana 600 hPa 46 -13 -11 70 MUSICA-TES Karlsruhe 600 hPa 42 13 -34 52 MUSICA-TES Kiruna 600 hPa 50 15 -19 54 MUSICA-TES Eureka 600 hPa -30 -53 64 87 Ehhalt-TES Nebraska 600 hPa -56 -92 -14 51 Ehhalt-TES Santa Barbara 600 hPa -17 -78 -13 75 Ehhalt-TES Death Valley 600 hPa -11 11 -10 -12 Ehhalt-ACE Nebraska 350 hPa 282 74 0 208 Ehhalt-ACE Santa Barbara 350 hPa 278 11 0 268 Ehhalt-ACE Death Valley 350 hPa 325 65 0 260 ICOS-ACE CR-AVE/TC4 region 350 hPa 139 163 0 -24 ICOS-ACE CR-AVE/TC4 region 250 hPa -27 73 0 100 MIPAS-ACE tropics 350 hPa 281 2 255 24 MIPAS-ACE global 350 hPa 254 7 232 15 MIPAS-ACE tropics 250 hPa 269 -1 126 144 MIPAS-ACE global 250 hPa 187 4 96 87 aIncluded are effect of spatiotemporal sampling (DeltaDeltaDcolloc = DeltaDeltaDi,colloc,model - DeltaDeltaDj,colloc,model), effect of instrument sensitivity (DeltaDeltaDconvol = DeltaDeltaDi,convol,model - DeltaDeltaDj,convol,model) and residual (i.e., due to measurement errors or problems in the spatiotemporal distribution simulated by LMDZ: DeltaDeltaDerrors = DeltaDeltaDi,error,data - DeltaDeltaDj,error,data + epsii - epsij). See Appendix D for a detailed explanation of these different terms and notations. When we compare two satellite data sets, we average both data sets over the same band of latitude noted in the Location column: 30degreeS-30degreeN for the tropics and 80degreeS-80degreeN for global mean. When we compare a satellite data set with a ground-based or aircraft data set, the ground-based/aircraft observations are averaged over the region of observation indicated in the Location column, and the satellite observation is averaged zonally at the same latitude as the ground-based or aircraft observations. This makes the DeltaD difference in the Total Difference column consistent with what we can see on Figure 1. Ground-based stations at which no satellite data are available are not shown (e.g., no TES data at Arrival Heights).