Atmospheric Trends Above Finland: II Troposhere and Stratosphere
Long-term meteorological monitoring activities at Sodankylä (67°N, 26°E) in Northern Finland are discussed. Observed time series of surface temperature, radiosoundings, solar radiation, and ozone, are described in more detail and availability of short-term or campaign-based records of other data are...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.523.5761 2023-05-15T17:42:40+02:00 Atmospheric Trends Above Finland: II Troposhere and Stratosphere Rigel Kivi Esko Kyrö Timo Turunen Thomas Ulich Esa Turunen The Pennsylvania State University CiteSeerX Archives 1998 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.523.5761 http://www.geophysica.fi/pdf/geophysica_1999_35_1-2_071_kivi.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.523.5761 http://www.geophysica.fi/pdf/geophysica_1999_35_1-2_071_kivi.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.geophysica.fi/pdf/geophysica_1999_35_1-2_071_kivi.pdf text 1998 ftciteseerx 2016-01-08T10:15:20Z Long-term meteorological monitoring activities at Sodankylä (67°N, 26°E) in Northern Finland are discussed. Observed time series of surface temperature, radiosoundings, solar radiation, and ozone, are described in more detail and availability of short-term or campaign-based records of other data are summarized. The trends found in the data are discussed and references to earlier analyses on the data sets are given. Data from Jyväskylä and Jokioinen (Finland) are found to agree well with the observed trends in long-term radiosonde data of Sodankylä. The long-term measurements suggest that changes in the atmosphere may occur in a stepwise manner. Here we report enhanced cooling of lower stratosphere as observed above Finland during the recent decade. For the time period January 1991 until December 1997 the observed cooling according to Sodankylä radiosondes has reached (-0.58 ± 0.11) K/year at 50 hPa, (-0.52 ± 0.14) K/year at 70 hPa and (-0.45 ± 0.15) K/year at 100 hPa air pressure level. Recent stratospheric cooling has been accompanied by decrease in ozone partial pressure which has reached (-2.2 ± 1.4) % / year at the level of 50 hPa for spring season according to the ozone sonde data of 1988-1997. The annual decrease of ozone in the lower stratosphere layer of 150 to 50 hPa has been (-1.3 ± 0.8) % / year according to the balloonborne ECC sonde data, while the measurements by Brewer spectrophotometer suggest that total column ozone for the same period has decreased by (-1 ± 0.1) % / year. Key words: Ozone, temperature, radiosoundings 1. Text Northern Finland Sodankylä Unknown Sodankylä ENVELOPE(26.600,26.600,67.417,67.417) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
Long-term meteorological monitoring activities at Sodankylä (67°N, 26°E) in Northern Finland are discussed. Observed time series of surface temperature, radiosoundings, solar radiation, and ozone, are described in more detail and availability of short-term or campaign-based records of other data are summarized. The trends found in the data are discussed and references to earlier analyses on the data sets are given. Data from Jyväskylä and Jokioinen (Finland) are found to agree well with the observed trends in long-term radiosonde data of Sodankylä. The long-term measurements suggest that changes in the atmosphere may occur in a stepwise manner. Here we report enhanced cooling of lower stratosphere as observed above Finland during the recent decade. For the time period January 1991 until December 1997 the observed cooling according to Sodankylä radiosondes has reached (-0.58 ± 0.11) K/year at 50 hPa, (-0.52 ± 0.14) K/year at 70 hPa and (-0.45 ± 0.15) K/year at 100 hPa air pressure level. Recent stratospheric cooling has been accompanied by decrease in ozone partial pressure which has reached (-2.2 ± 1.4) % / year at the level of 50 hPa for spring season according to the ozone sonde data of 1988-1997. The annual decrease of ozone in the lower stratosphere layer of 150 to 50 hPa has been (-1.3 ± 0.8) % / year according to the balloonborne ECC sonde data, while the measurements by Brewer spectrophotometer suggest that total column ozone for the same period has decreased by (-1 ± 0.1) % / year. Key words: Ozone, temperature, radiosoundings 1. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Rigel Kivi Esko Kyrö Timo Turunen Thomas Ulich Esa Turunen |
spellingShingle |
Rigel Kivi Esko Kyrö Timo Turunen Thomas Ulich Esa Turunen Atmospheric Trends Above Finland: II Troposhere and Stratosphere |
author_facet |
Rigel Kivi Esko Kyrö Timo Turunen Thomas Ulich Esa Turunen |
author_sort |
Rigel Kivi |
title |
Atmospheric Trends Above Finland: II Troposhere and Stratosphere |
title_short |
Atmospheric Trends Above Finland: II Troposhere and Stratosphere |
title_full |
Atmospheric Trends Above Finland: II Troposhere and Stratosphere |
title_fullStr |
Atmospheric Trends Above Finland: II Troposhere and Stratosphere |
title_full_unstemmed |
Atmospheric Trends Above Finland: II Troposhere and Stratosphere |
title_sort |
atmospheric trends above finland: ii troposhere and stratosphere |
publishDate |
1998 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.523.5761 http://www.geophysica.fi/pdf/geophysica_1999_35_1-2_071_kivi.pdf |
long_lat |
ENVELOPE(26.600,26.600,67.417,67.417) |
geographic |
Sodankylä |
geographic_facet |
Sodankylä |
genre |
Northern Finland Sodankylä |
genre_facet |
Northern Finland Sodankylä |
op_source |
http://www.geophysica.fi/pdf/geophysica_1999_35_1-2_071_kivi.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.523.5761 http://www.geophysica.fi/pdf/geophysica_1999_35_1-2_071_kivi.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766144561390813184 |