TOMS total ozone data compared with northern latitude Dobson ground stations
Ozone measurements from the Total Ozone Mapping Spectrometer on the Nimbus 7 satellite are compared with ground-based measurements from five Dobson stations at northern latitudes to evaluate the accuracy of the TOMS data, particularly in regions north of 50 deg N. The measurements from the individua...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19950004229 2023-05-15T15:40:01+02:00 TOMS total ozone data compared with northern latitude Dobson ground stations Heese, B. Hov, O. Barthel, K. Unclassified, Unlimited, Publicly available Apr 1, 1994 application/pdf http://hdl.handle.net/2060/19950004229 unknown Document ID: 19950004229 Accession ID: 95N10641 http://hdl.handle.net/2060/19950004229 No Copyright CASI METEOROLOGY AND CLIMATOLOGY NASA. Goddard Space Flight Center, Ozone in the Troposphere and Stratosphere, Part 1; p 215-218 1994 ftnasantrs 2015-03-15T03:40:32Z Ozone measurements from the Total Ozone Mapping Spectrometer on the Nimbus 7 satellite are compared with ground-based measurements from five Dobson stations at northern latitudes to evaluate the accuracy of the TOMS data, particularly in regions north of 50 deg N. The measurements from the individual stations show mean differences from -2.5 percent up to plus 8.3 percent relative to TOMS measurements and two of the ground stations, Oslo and Longyearbyen, show a significant drift of plus 1.2 percent and plus 3.7 percent per year, respectively. It can be shown from nearly simultaneous measurements in two different wavelength double pairs at Oslo that at least 2 percent of the differences result from the use of the CC' wavelength double pair instead of the standard AD wavelength double pair. Since all Norwegian stations used the CC' wavelength double pair exclusively a similar error can be assumed for Tromso and Longyearbyren. A comparison between the tropospheric ozone content in TOMS data and from ECC ozonesonde measurements at Ny-Alesund and Bear Island shows that the amount of tropospheric ozone in the standard profiles used in the TOMS algorithm is too low, which leads to an error of about 2 percent in total ozone. Particularly at high solar zenith angles (greater than 80 deg), Dobson measurements become unreliable. They are up to 20 percent lower than TOMS measurements averaged over solar zenith angles of 88 deg to 89 deg. Other/Unknown Material Bear Island Longyearbyen Tromso Tromso NASA Technical Reports Server (NTRS) Bear Island ENVELOPE(-67.250,-67.250,-68.151,-68.151) Longyearbyen Tromso ENVELOPE(16.546,16.546,68.801,68.801) |
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Open Polar |
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NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
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topic |
METEOROLOGY AND CLIMATOLOGY |
spellingShingle |
METEOROLOGY AND CLIMATOLOGY Heese, B. Hov, O. Barthel, K. TOMS total ozone data compared with northern latitude Dobson ground stations |
topic_facet |
METEOROLOGY AND CLIMATOLOGY |
description |
Ozone measurements from the Total Ozone Mapping Spectrometer on the Nimbus 7 satellite are compared with ground-based measurements from five Dobson stations at northern latitudes to evaluate the accuracy of the TOMS data, particularly in regions north of 50 deg N. The measurements from the individual stations show mean differences from -2.5 percent up to plus 8.3 percent relative to TOMS measurements and two of the ground stations, Oslo and Longyearbyen, show a significant drift of plus 1.2 percent and plus 3.7 percent per year, respectively. It can be shown from nearly simultaneous measurements in two different wavelength double pairs at Oslo that at least 2 percent of the differences result from the use of the CC' wavelength double pair instead of the standard AD wavelength double pair. Since all Norwegian stations used the CC' wavelength double pair exclusively a similar error can be assumed for Tromso and Longyearbyren. A comparison between the tropospheric ozone content in TOMS data and from ECC ozonesonde measurements at Ny-Alesund and Bear Island shows that the amount of tropospheric ozone in the standard profiles used in the TOMS algorithm is too low, which leads to an error of about 2 percent in total ozone. Particularly at high solar zenith angles (greater than 80 deg), Dobson measurements become unreliable. They are up to 20 percent lower than TOMS measurements averaged over solar zenith angles of 88 deg to 89 deg. |
format |
Other/Unknown Material |
author |
Heese, B. Hov, O. Barthel, K. |
author_facet |
Heese, B. Hov, O. Barthel, K. |
author_sort |
Heese, B. |
title |
TOMS total ozone data compared with northern latitude Dobson ground stations |
title_short |
TOMS total ozone data compared with northern latitude Dobson ground stations |
title_full |
TOMS total ozone data compared with northern latitude Dobson ground stations |
title_fullStr |
TOMS total ozone data compared with northern latitude Dobson ground stations |
title_full_unstemmed |
TOMS total ozone data compared with northern latitude Dobson ground stations |
title_sort |
toms total ozone data compared with northern latitude dobson ground stations |
publishDate |
1994 |
url |
http://hdl.handle.net/2060/19950004229 |
op_coverage |
Unclassified, Unlimited, Publicly available |
long_lat |
ENVELOPE(-67.250,-67.250,-68.151,-68.151) ENVELOPE(16.546,16.546,68.801,68.801) |
geographic |
Bear Island Longyearbyen Tromso |
geographic_facet |
Bear Island Longyearbyen Tromso |
genre |
Bear Island Longyearbyen Tromso Tromso |
genre_facet |
Bear Island Longyearbyen Tromso Tromso |
op_source |
CASI |
op_relation |
Document ID: 19950004229 Accession ID: 95N10641 http://hdl.handle.net/2060/19950004229 |
op_rights |
No Copyright |
_version_ |
1766372120969871360 |