The Diurnal Variation in Stratospheric Ozone from MACC Reanalysis, ERA-Interim, WACCM, and Earth Observation Data: Characteristics and Intercomparison
In this study, we compare the diurnal variation in stratospheric ozone of the MACC (Monitoring Atmospheric Composition and Climate) reanalysis, ECMWF Reanalysis Interim (ERA-Interim), and the free-running WACCM (Whole Atmosphere Community Climate Model). The diurnal variation of stratospheric ozone...
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2021
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ftmdpi:oai:mdpi.com:/2073-4433/12/5/625/ 2023-08-20T04:00:43+02:00 The Diurnal Variation in Stratospheric Ozone from MACC Reanalysis, ERA-Interim, WACCM, and Earth Observation Data: Characteristics and Intercomparison Ansgar Schanz Klemens Hocke Niklaus Kämpfer Simon Chabrillat Antje Inness Mathias Palm Justus Notholt Ian Boyd Alan Parrish Yasuko Kasai agris 2021-05-13 application/pdf https://doi.org/10.3390/atmos12050625 EN eng Multidisciplinary Digital Publishing Institute Air Quality https://dx.doi.org/10.3390/atmos12050625 https://creativecommons.org/licenses/by/4.0/ Atmosphere; Volume 12; Issue 5; Pages: 625 stratospheric ozone diurnal ozone cycle photochemistry dynamics reanalysis MACC ERA-Interim WACCM SMILES microwave radiometry Text 2021 ftmdpi https://doi.org/10.3390/atmos12050625 2023-08-01T01:42:23Z In this study, we compare the diurnal variation in stratospheric ozone of the MACC (Monitoring Atmospheric Composition and Climate) reanalysis, ECMWF Reanalysis Interim (ERA-Interim), and the free-running WACCM (Whole Atmosphere Community Climate Model). The diurnal variation of stratospheric ozone results from photochemical and dynamical processes depending on altitude, latitude, and season. MACC reanalysis and WACCM use similar chemistry modules and calculate a similar diurnal cycle in ozone when it is caused by a photochemical variation. The results of the two model systems are confirmed by observations of the Superconducting Submillimeter-Wave Limb-Emission Sounder (SMILES) experiment and three selected sites of the Network for Detection of Atmospheric Composition Change (NDACC) at Mauna Loa, Hawaii (tropics), Bern, Switzerland (midlatitudes), and Ny-Ålesund, Svalbard (high latitudes). On the other hand, the ozone product of ERA-Interim shows considerably less diurnal variation due to photochemical variations. The global maxima of diurnal variation occur at high latitudes in summer, e.g., near the Arctic NDACC site at Ny-Ålesund, Svalbard. The local OZORAM radiometer observes this effect in good agreement with MACC reanalysis and WACCM. The sensed diurnal variation at Ny-Ålesund is up to 8% (0.4 ppmv) due to photochemical variations in summer and negligible during the dynamically dominated winter. However, when dynamics play a major role for the diurnal ozone variation as in the lower stratosphere (100–20 hPa), the reanalysis models ERA-Interim and MACC which assimilate data from radiosondes and satellites outperform the free-running WACCM. Such a domain is the Antarctic polar winter where a surprising novel feature of diurnal variation is indicated by MACC reanalysis and ERA-Interim at the edge of the polar vortex. This effect accounts for up to 8% (0.4 ppmv) in both model systems. In summary, MACC reanalysis provides a global description of the diurnal variation of stratospheric ozone caused by dynamics ... Text Antarc* Antarctic Arctic Ny Ålesund Ny-Ålesund Svalbard MDPI Open Access Publishing Arctic Antarctic The Antarctic Svalbard Ny-Ålesund Atmosphere 12 5 625 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
stratospheric ozone diurnal ozone cycle photochemistry dynamics reanalysis MACC ERA-Interim WACCM SMILES microwave radiometry |
spellingShingle |
stratospheric ozone diurnal ozone cycle photochemistry dynamics reanalysis MACC ERA-Interim WACCM SMILES microwave radiometry Ansgar Schanz Klemens Hocke Niklaus Kämpfer Simon Chabrillat Antje Inness Mathias Palm Justus Notholt Ian Boyd Alan Parrish Yasuko Kasai The Diurnal Variation in Stratospheric Ozone from MACC Reanalysis, ERA-Interim, WACCM, and Earth Observation Data: Characteristics and Intercomparison |
topic_facet |
stratospheric ozone diurnal ozone cycle photochemistry dynamics reanalysis MACC ERA-Interim WACCM SMILES microwave radiometry |
description |
In this study, we compare the diurnal variation in stratospheric ozone of the MACC (Monitoring Atmospheric Composition and Climate) reanalysis, ECMWF Reanalysis Interim (ERA-Interim), and the free-running WACCM (Whole Atmosphere Community Climate Model). The diurnal variation of stratospheric ozone results from photochemical and dynamical processes depending on altitude, latitude, and season. MACC reanalysis and WACCM use similar chemistry modules and calculate a similar diurnal cycle in ozone when it is caused by a photochemical variation. The results of the two model systems are confirmed by observations of the Superconducting Submillimeter-Wave Limb-Emission Sounder (SMILES) experiment and three selected sites of the Network for Detection of Atmospheric Composition Change (NDACC) at Mauna Loa, Hawaii (tropics), Bern, Switzerland (midlatitudes), and Ny-Ålesund, Svalbard (high latitudes). On the other hand, the ozone product of ERA-Interim shows considerably less diurnal variation due to photochemical variations. The global maxima of diurnal variation occur at high latitudes in summer, e.g., near the Arctic NDACC site at Ny-Ålesund, Svalbard. The local OZORAM radiometer observes this effect in good agreement with MACC reanalysis and WACCM. The sensed diurnal variation at Ny-Ålesund is up to 8% (0.4 ppmv) due to photochemical variations in summer and negligible during the dynamically dominated winter. However, when dynamics play a major role for the diurnal ozone variation as in the lower stratosphere (100–20 hPa), the reanalysis models ERA-Interim and MACC which assimilate data from radiosondes and satellites outperform the free-running WACCM. Such a domain is the Antarctic polar winter where a surprising novel feature of diurnal variation is indicated by MACC reanalysis and ERA-Interim at the edge of the polar vortex. This effect accounts for up to 8% (0.4 ppmv) in both model systems. In summary, MACC reanalysis provides a global description of the diurnal variation of stratospheric ozone caused by dynamics ... |
format |
Text |
author |
Ansgar Schanz Klemens Hocke Niklaus Kämpfer Simon Chabrillat Antje Inness Mathias Palm Justus Notholt Ian Boyd Alan Parrish Yasuko Kasai |
author_facet |
Ansgar Schanz Klemens Hocke Niklaus Kämpfer Simon Chabrillat Antje Inness Mathias Palm Justus Notholt Ian Boyd Alan Parrish Yasuko Kasai |
author_sort |
Ansgar Schanz |
title |
The Diurnal Variation in Stratospheric Ozone from MACC Reanalysis, ERA-Interim, WACCM, and Earth Observation Data: Characteristics and Intercomparison |
title_short |
The Diurnal Variation in Stratospheric Ozone from MACC Reanalysis, ERA-Interim, WACCM, and Earth Observation Data: Characteristics and Intercomparison |
title_full |
The Diurnal Variation in Stratospheric Ozone from MACC Reanalysis, ERA-Interim, WACCM, and Earth Observation Data: Characteristics and Intercomparison |
title_fullStr |
The Diurnal Variation in Stratospheric Ozone from MACC Reanalysis, ERA-Interim, WACCM, and Earth Observation Data: Characteristics and Intercomparison |
title_full_unstemmed |
The Diurnal Variation in Stratospheric Ozone from MACC Reanalysis, ERA-Interim, WACCM, and Earth Observation Data: Characteristics and Intercomparison |
title_sort |
diurnal variation in stratospheric ozone from macc reanalysis, era-interim, waccm, and earth observation data: characteristics and intercomparison |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2021 |
url |
https://doi.org/10.3390/atmos12050625 |
op_coverage |
agris |
geographic |
Arctic Antarctic The Antarctic Svalbard Ny-Ålesund |
geographic_facet |
Arctic Antarctic The Antarctic Svalbard Ny-Ålesund |
genre |
Antarc* Antarctic Arctic Ny Ålesund Ny-Ålesund Svalbard |
genre_facet |
Antarc* Antarctic Arctic Ny Ålesund Ny-Ålesund Svalbard |
op_source |
Atmosphere; Volume 12; Issue 5; Pages: 625 |
op_relation |
Air Quality https://dx.doi.org/10.3390/atmos12050625 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/atmos12050625 |
container_title |
Atmosphere |
container_volume |
12 |
container_issue |
5 |
container_start_page |
625 |
_version_ |
1774719868401090560 |