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Interactive comment on “ SCIAMACHY CO over the oceans : 2003 – 2007 interannual variability ” by A
| Content Provider | Semantic Scholar |
|---|---|
| Author | Gloudemans, Annemieke Laat, Jos De Schrijver, Hans M. Aben, Ilse |
| Copyright Year | 2009 |
| Abstract | i.e. the CH4 method indicates that the cloud is at a lower altitude than the actual cloud, the CO partial column is compared to a too large partial column of the comparison data set or the filling-up below the cloud is too small resulting in too low total columns over the oceans. However, the average differences between the CH4 cloud top pressures and the FRESCO+ cloud pressures are <20 hPa (Fig. 6). This corresponds to errors in the total column after filling-up below the cloud which are smaller or in the case of small instrument-noise errors at worst comparable to the instrument-noise error. This is in agreement with the statistics in Fig. 8 where SCIAMACHY CO measurements over the oceans are compared with the corresponding TM4 values: no significant bias is found here (Fig. 8b) and the spread in the differences in Fig. 8a is within the instrument-noise error. Thus, the error in the cloud top height does not have a significant impact on the comparison of the CO partial columns above clouded ocean scenes with other data sets nor on the total columns over the oceans after filling-up the column below the cloud. This has been added to the paper in section 3.2. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.atmos-chem-phys-discuss.net/9/C1145/2009/acpd-9-C1145-2009-print.pdf |
| Alternate Webpage(s) | https://www.atmos-chem-phys-discuss.net/9/C43/2009/acpd-9-C43-2009.pdf |
| Alternate Webpage(s) | https://www.atmos-chem-phys-discuss.net/9/C1145/2009/acpd-9-C1145-2009.pdf |
| Alternate Webpage(s) | https://www.atmos-chem-phys-discuss.net/9/C33/2009/acpd-9-C33-2009-print.pdf |
| Alternate Webpage(s) | https://www.atmos-chem-phys-discuss.net/9/C43/2009/acpd-9-C43-2009-print.pdf |
| Alternate Webpage(s) | https://www.atmos-chem-phys-discuss.net/9/C1140/2009/acpd-9-C1140-2009-print.pdf |
| Alternate Webpage(s) | https://www.atmos-chem-phys-discuss.net/9/C1140/2009/acpd-9-C1140-2009.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
