Comparisons between ground-based FTIR and MIPAS N 2 O and HNO 3 profiles before and after assimilation in BASCOE
International audience Within the framework of the Network for Detection of Atmospheric Composition Change (NDACC), regular ground-based Fourier transform infrared (FTIR) measurements of many species are performed at several locations. Inversion schemes provide vertical profile information and chara...
Main Authors: | , , , , , , , , , , |
---|---|
Other Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2006
|
Subjects: | |
Online Access: | https://hal.science/hal-00302093 https://hal.science/hal-00302093/document https://hal.science/hal-00302093/file/acpd-6-8335-2006.pdf |
id |
ftinsu:oai:HAL:hal-00302093v1 |
---|---|
record_format |
openpolar |
spelling |
ftinsu:oai:HAL:hal-00302093v1 2023-11-12T04:20:22+01:00 Comparisons between ground-based FTIR and MIPAS N 2 O and HNO 3 profiles before and after assimilation in BASCOE Vigouroux, C. de Mazière, M. Errera, Q. Mahieu, E. Duchatelet, P. Wood, S. Smale, D. Mikuteit, S. Blumenstock, T. Hase, F. Jones, N. Belgian Institute for Space Aeronomy / Institut d'Aéronomie Spatiale de Belgique (BIRA-IASB) Institut d'Astrophysique et de Géophysique Liège Université de Liège National Institute of Water and Atmospheric Research Lauder (NIWA) Institute for Meteorology and Climate Research (IMK) Karlsruhe Institute of Technology (KIT) University of Wollongong Australia 2006-09-01 https://hal.science/hal-00302093 https://hal.science/hal-00302093/document https://hal.science/hal-00302093/file/acpd-6-8335-2006.pdf en eng HAL CCSD European Geosciences Union hal-00302093 https://hal.science/hal-00302093 https://hal.science/hal-00302093/document https://hal.science/hal-00302093/file/acpd-6-8335-2006.pdf info:eu-repo/semantics/OpenAccess ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal.science/hal-00302093 Atmospheric Chemistry and Physics Discussions, 2006, 6 (5), pp.8335-8382 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2006 ftinsu 2023-11-01T17:26:01Z International audience Within the framework of the Network for Detection of Atmospheric Composition Change (NDACC), regular ground-based Fourier transform infrared (FTIR) measurements of many species are performed at several locations. Inversion schemes provide vertical profile information and characterization of the retrieved products which are therefore relevant for contributing to the validation of MIPAS profiles in the stratosphere and upper troposphere. We have focused on the species HNO 3 and N 2 O at 5 NDACC-sites distributed in both hemispheres, i.e., Jungfraujoch (46.5° N) and Kiruna (68° N) for the northern hemisphere, and Wollongong (34° S), Lauder (45° S) and Arrival Heights (78° S) for the southern hemisphere. These ground-based data have been compared with MIPAS offline profiles (v4.61) for the year 2003, collocated within 1000 km around the stations, in the lower to middle stratosphere. To get around the spatial collocation problem, comparisons have also been made between the same ground-based FTIR data and the corresponding profiles resulting from the stratospheric 4D-VAR data assimilation system BASCOE. This paper discusses the results of the comparisons and the usefullness of using BASCOE profiles as proxies for MIPAS data. It shows good agreement between MIPAS and FTIR N 2 O partial columns: the biases are below 5% for all the stations and the standard deviations are below 7% for the three mid-latitude stations, and below 10% for the high latitude ones. The comparisons with BASCOE partial columns give standard deviations below 4% for the mid-latitude stations to less than 8% for the high-latitude ones. After making some corrections to take into account the known bias due to the use of different spectroscopic parameters, the comparisons of HNO 3 partial columns show biases below 3% and standard deviations below 15% for all the stations except Arrival Heights (bias of 6%, standard deviation of 21%). The results for this species, which has a larger spatial variability, highlight the necessity ... Article in Journal/Newspaper Kiruna Institut national des sciences de l'Univers: HAL-INSU Arrival Heights ENVELOPE(166.650,166.650,-77.817,-77.817) Kiruna |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Vigouroux, C. de Mazière, M. Errera, Q. Mahieu, E. Duchatelet, P. Wood, S. Smale, D. Mikuteit, S. Blumenstock, T. Hase, F. Jones, N. Comparisons between ground-based FTIR and MIPAS N 2 O and HNO 3 profiles before and after assimilation in BASCOE |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience Within the framework of the Network for Detection of Atmospheric Composition Change (NDACC), regular ground-based Fourier transform infrared (FTIR) measurements of many species are performed at several locations. Inversion schemes provide vertical profile information and characterization of the retrieved products which are therefore relevant for contributing to the validation of MIPAS profiles in the stratosphere and upper troposphere. We have focused on the species HNO 3 and N 2 O at 5 NDACC-sites distributed in both hemispheres, i.e., Jungfraujoch (46.5° N) and Kiruna (68° N) for the northern hemisphere, and Wollongong (34° S), Lauder (45° S) and Arrival Heights (78° S) for the southern hemisphere. These ground-based data have been compared with MIPAS offline profiles (v4.61) for the year 2003, collocated within 1000 km around the stations, in the lower to middle stratosphere. To get around the spatial collocation problem, comparisons have also been made between the same ground-based FTIR data and the corresponding profiles resulting from the stratospheric 4D-VAR data assimilation system BASCOE. This paper discusses the results of the comparisons and the usefullness of using BASCOE profiles as proxies for MIPAS data. It shows good agreement between MIPAS and FTIR N 2 O partial columns: the biases are below 5% for all the stations and the standard deviations are below 7% for the three mid-latitude stations, and below 10% for the high latitude ones. The comparisons with BASCOE partial columns give standard deviations below 4% for the mid-latitude stations to less than 8% for the high-latitude ones. After making some corrections to take into account the known bias due to the use of different spectroscopic parameters, the comparisons of HNO 3 partial columns show biases below 3% and standard deviations below 15% for all the stations except Arrival Heights (bias of 6%, standard deviation of 21%). The results for this species, which has a larger spatial variability, highlight the necessity ... |
author2 |
Belgian Institute for Space Aeronomy / Institut d'Aéronomie Spatiale de Belgique (BIRA-IASB) Institut d'Astrophysique et de Géophysique Liège Université de Liège National Institute of Water and Atmospheric Research Lauder (NIWA) Institute for Meteorology and Climate Research (IMK) Karlsruhe Institute of Technology (KIT) University of Wollongong Australia |
format |
Article in Journal/Newspaper |
author |
Vigouroux, C. de Mazière, M. Errera, Q. Mahieu, E. Duchatelet, P. Wood, S. Smale, D. Mikuteit, S. Blumenstock, T. Hase, F. Jones, N. |
author_facet |
Vigouroux, C. de Mazière, M. Errera, Q. Mahieu, E. Duchatelet, P. Wood, S. Smale, D. Mikuteit, S. Blumenstock, T. Hase, F. Jones, N. |
author_sort |
Vigouroux, C. |
title |
Comparisons between ground-based FTIR and MIPAS N 2 O and HNO 3 profiles before and after assimilation in BASCOE |
title_short |
Comparisons between ground-based FTIR and MIPAS N 2 O and HNO 3 profiles before and after assimilation in BASCOE |
title_full |
Comparisons between ground-based FTIR and MIPAS N 2 O and HNO 3 profiles before and after assimilation in BASCOE |
title_fullStr |
Comparisons between ground-based FTIR and MIPAS N 2 O and HNO 3 profiles before and after assimilation in BASCOE |
title_full_unstemmed |
Comparisons between ground-based FTIR and MIPAS N 2 O and HNO 3 profiles before and after assimilation in BASCOE |
title_sort |
comparisons between ground-based ftir and mipas n 2 o and hno 3 profiles before and after assimilation in bascoe |
publisher |
HAL CCSD |
publishDate |
2006 |
url |
https://hal.science/hal-00302093 https://hal.science/hal-00302093/document https://hal.science/hal-00302093/file/acpd-6-8335-2006.pdf |
long_lat |
ENVELOPE(166.650,166.650,-77.817,-77.817) |
geographic |
Arrival Heights Kiruna |
geographic_facet |
Arrival Heights Kiruna |
genre |
Kiruna |
genre_facet |
Kiruna |
op_source |
ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal.science/hal-00302093 Atmospheric Chemistry and Physics Discussions, 2006, 6 (5), pp.8335-8382 |
op_relation |
hal-00302093 https://hal.science/hal-00302093 https://hal.science/hal-00302093/document https://hal.science/hal-00302093/file/acpd-6-8335-2006.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782336364245680128 |