Ozone profiles above Kiruna from two ground-based radiometers
This paper presents new atmospheric ozone concentration profiles retrieved from measurements made with two ground-based millimetre-wave radiometers in Kiruna, Sweden. The instruments are the Kiruna Microwave Radiometer (KIMRA) and the Millimeter wave Radiometer 2 (MIRA 2). The ozone concentration pr...
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ftdatacite:10.5445/ir/1000059784 2023-05-15T17:04:04+02:00 Ozone profiles above Kiruna from two ground-based radiometers Ryan, Niall J. Walker, Kaley A. Raffalski, Uwe Kivi, Rigel Gross, Jochen Manney, Gloria L. 2016 PDF https://dx.doi.org/10.5445/ir/1000059784 https://publikationen.bibliothek.kit.edu/1000059784 en eng Karlsruhe Creative Commons Namensnennung 3.0 Deutschland Open Access info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/3.0/de CC-BY Text article-journal Journal Article ScholarlyArticle 2016 ftdatacite https://doi.org/10.5445/ir/1000059784 2021-11-05T12:55:41Z This paper presents new atmospheric ozone concentration profiles retrieved from measurements made with two ground-based millimetre-wave radiometers in Kiruna, Sweden. The instruments are the Kiruna Microwave Radiometer (KIMRA) and the Millimeter wave Radiometer 2 (MIRA 2). The ozone concentration profiles are retrieved using an optimal estimation inversion technique, and they cover an altitude range of ~16–54 km, with an altitude resolution of, at best, 8 km. The KIMRA and MIRA 2 measurements are compared to each other, to measurements from balloon-borne ozonesonde measurements at Sodankylä, Finland, and to measurements made by the Microwave Limb Sounder (MLS) aboard the Aura satellite. KIMRA has a correlation of 0.82, but shows a low bias, with respect to the ozonesonde data, and MIRA 2 shows a smaller magnitude low bias and a 0.98 correlation coefficient. Both radiometers are in general agreement with each other and with MLS data, showing high correlation coefficients, but there are differences between measurements that are not explained by random errors. An oscillatory bias with a peak of approximately ±1 ppmv is identified in the KIMRA ozone profiles over an altitude range of ~18–35 km, and is believed to be due to baseline wave features that are present in the spectra. A time series analysis of KIMRA ozone for winters 2008– 2013 shows the existence of a local wintertime minimum in the ozone profile above Kiruna. The measurements have been ongoing at Kiruna since 2002 and late 2012 for KIMRA and MIRA 2, respectively. Text Kiruna Sodankylä DataCite Metadata Store (German National Library of Science and Technology) Kiruna Sodankylä ENVELOPE(26.600,26.600,67.417,67.417) Mira ENVELOPE(10.500,10.500,-70.417,-70.417) |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
language |
English |
description |
This paper presents new atmospheric ozone concentration profiles retrieved from measurements made with two ground-based millimetre-wave radiometers in Kiruna, Sweden. The instruments are the Kiruna Microwave Radiometer (KIMRA) and the Millimeter wave Radiometer 2 (MIRA 2). The ozone concentration profiles are retrieved using an optimal estimation inversion technique, and they cover an altitude range of ~16–54 km, with an altitude resolution of, at best, 8 km. The KIMRA and MIRA 2 measurements are compared to each other, to measurements from balloon-borne ozonesonde measurements at Sodankylä, Finland, and to measurements made by the Microwave Limb Sounder (MLS) aboard the Aura satellite. KIMRA has a correlation of 0.82, but shows a low bias, with respect to the ozonesonde data, and MIRA 2 shows a smaller magnitude low bias and a 0.98 correlation coefficient. Both radiometers are in general agreement with each other and with MLS data, showing high correlation coefficients, but there are differences between measurements that are not explained by random errors. An oscillatory bias with a peak of approximately ±1 ppmv is identified in the KIMRA ozone profiles over an altitude range of ~18–35 km, and is believed to be due to baseline wave features that are present in the spectra. A time series analysis of KIMRA ozone for winters 2008– 2013 shows the existence of a local wintertime minimum in the ozone profile above Kiruna. The measurements have been ongoing at Kiruna since 2002 and late 2012 for KIMRA and MIRA 2, respectively. |
format |
Text |
author |
Ryan, Niall J. Walker, Kaley A. Raffalski, Uwe Kivi, Rigel Gross, Jochen Manney, Gloria L. |
spellingShingle |
Ryan, Niall J. Walker, Kaley A. Raffalski, Uwe Kivi, Rigel Gross, Jochen Manney, Gloria L. Ozone profiles above Kiruna from two ground-based radiometers |
author_facet |
Ryan, Niall J. Walker, Kaley A. Raffalski, Uwe Kivi, Rigel Gross, Jochen Manney, Gloria L. |
author_sort |
Ryan, Niall J. |
title |
Ozone profiles above Kiruna from two ground-based radiometers |
title_short |
Ozone profiles above Kiruna from two ground-based radiometers |
title_full |
Ozone profiles above Kiruna from two ground-based radiometers |
title_fullStr |
Ozone profiles above Kiruna from two ground-based radiometers |
title_full_unstemmed |
Ozone profiles above Kiruna from two ground-based radiometers |
title_sort |
ozone profiles above kiruna from two ground-based radiometers |
publisher |
Karlsruhe |
publishDate |
2016 |
url |
https://dx.doi.org/10.5445/ir/1000059784 https://publikationen.bibliothek.kit.edu/1000059784 |
long_lat |
ENVELOPE(26.600,26.600,67.417,67.417) ENVELOPE(10.500,10.500,-70.417,-70.417) |
geographic |
Kiruna Sodankylä Mira |
geographic_facet |
Kiruna Sodankylä Mira |
genre |
Kiruna Sodankylä |
genre_facet |
Kiruna Sodankylä |
op_rights |
Creative Commons Namensnennung 3.0 Deutschland Open Access info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/3.0/de |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5445/ir/1000059784 |
_version_ |
1766058111267766272 |