Growth rates of stratospheric HCFC-22
The Michelson Interferometer for Passive Atmospheric Sounding onboard ENVISAT (MIPAS-E) offers the opportunity to detect and spectrally resolve many atmospheric minor constituents affecting atmospheric chemistry. In this paper, we describe an algorithm produced to retrieve HCFC–22 prof...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2008-01-01
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| Series: | Atmospheric Chemistry and Physics |
| Online Access: | http://www.atmos-chem-phys.net/8/73/2008/acp-8-73-2008.pdf |
| _version_ | 1811318094804549632 |
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| author | D. P. Moore J. J. Remedios |
| author_facet | D. P. Moore J. J. Remedios |
| author_sort | D. P. Moore |
| collection | DOAJ |
| description | The Michelson Interferometer for Passive Atmospheric Sounding onboard ENVISAT (MIPAS-E) offers the opportunity to detect and spectrally resolve many atmospheric minor constituents affecting atmospheric chemistry. In this paper, we describe an algorithm produced to retrieve HCFC–22 profiles from MIPAS-E measurements made in 2003 and present results from this scheme between 300 and 50 mb. By comparison with ATMOS (AT–3) version 3 data, we find a mean Northern Hemisphere mid-latitude (20–50° N) HCFC–22 growth rate between 1994 and 2003 of 5.4±0.7 pptv/yr in the lower stratosphere (LS) and a mean LS Southern Hemisphere growth rate (60–80° S) of 6.0±0.7 pptv/yr in the same period. We test the feasibility of using a global data set to estimate the chemical lifetime of HCFC–22 in the LS and we derive this for two regions: 20–50° N (246±38 years) and 60–80° S (274±34 years). From these data we note a global LS lifetime of 260±25 years, significantly longer than previous estimates. |
| first_indexed | 2024-04-13T12:19:58Z |
| format | Article |
| id | doaj.art-ef7e553335ef453988c692f979c9a929 |
| institution | Directory Open Access Journal |
| issn | 1680-7316 1680-7324 |
| language | English |
| last_indexed | 2024-04-13T12:19:58Z |
| publishDate | 2008-01-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Chemistry and Physics |
| spelling | doaj.art-ef7e553335ef453988c692f979c9a9292022-12-22T02:47:15ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242008-01-01817382Growth rates of stratospheric HCFC-22D. P. MooreJ. J. RemediosThe Michelson Interferometer for Passive Atmospheric Sounding onboard ENVISAT (MIPAS-E) offers the opportunity to detect and spectrally resolve many atmospheric minor constituents affecting atmospheric chemistry. In this paper, we describe an algorithm produced to retrieve HCFC–22 profiles from MIPAS-E measurements made in 2003 and present results from this scheme between 300 and 50 mb. By comparison with ATMOS (AT–3) version 3 data, we find a mean Northern Hemisphere mid-latitude (20–50° N) HCFC–22 growth rate between 1994 and 2003 of 5.4±0.7 pptv/yr in the lower stratosphere (LS) and a mean LS Southern Hemisphere growth rate (60–80° S) of 6.0±0.7 pptv/yr in the same period. We test the feasibility of using a global data set to estimate the chemical lifetime of HCFC–22 in the LS and we derive this for two regions: 20–50° N (246±38 years) and 60–80° S (274±34 years). From these data we note a global LS lifetime of 260±25 years, significantly longer than previous estimates.http://www.atmos-chem-phys.net/8/73/2008/acp-8-73-2008.pdf |
| spellingShingle | D. P. Moore J. J. Remedios Growth rates of stratospheric HCFC-22 Atmospheric Chemistry and Physics |
| title | Growth rates of stratospheric HCFC-22 |
| title_full | Growth rates of stratospheric HCFC-22 |
| title_fullStr | Growth rates of stratospheric HCFC-22 |
| title_full_unstemmed | Growth rates of stratospheric HCFC-22 |
| title_short | Growth rates of stratospheric HCFC-22 |
| title_sort | growth rates of stratospheric hcfc 22 |
| url | http://www.atmos-chem-phys.net/8/73/2008/acp-8-73-2008.pdf |
| work_keys_str_mv | AT dpmoore growthratesofstratospherichcfc22 AT jjremedios growthratesofstratospherichcfc22 |