Continuous observations of atmospheric and oceanic CO2 using a moored buoy in the East China Sea: Variations during the passage of typhoons
Identifieur interne : 008412 ( Main/Exploration ); précédent : 008411; suivant : 008413Continuous observations of atmospheric and oceanic CO2 using a moored buoy in the East China Sea: Variations during the passage of typhoons
Auteurs : K. Nemoto [Japon] ; T. Midorikawa [Japon] ; A. Wada [Japon] ; K. Ogawa [Japon] ; S. Takatani [Japon] ; H. Kimoto [Japon] ; M. Ishii [Japon] ; H. Y. Inoue [Japon]Source :
- Deep-sea research. Part 2. Topical studies in oceanography [ 0967-0645 ] ; 2009.
Descripteurs français
- Pascal (Inist)
- Bouée, Typhon, Pression partielle, Dioxyde carbone, Dioxyde de carbone, Météorologie maritime, Eau surface, Eté, Atmosphère, Série temporelle, Exposition, Variation court terme, Variation brusque, Variation diurne, Température surface marine, Position, Amarrage, Surface marine, Refroidissement, Entraînement (atmosphère, océan), Upwelling, Cycle carbone, Zone subtropicale, Cyclone tropical, Gaz effet serre, Mer de Chine Est, Océan Pacifique Nord.
- Wicri :
- topic : Atmosphère, Zone subtropicale.
English descriptors
- KwdEn :
- Buoy, Carbon dioxide, East China Sea, Entrainment (atmosphere, ocean), Marine meteorology, Mooring, North Pacific, Position, Sea surface, Sea surface temperature, Short term variation, Sudden variation, Summer, Time series, Tropical cyclone, Typhoon, atmosphere, carbon cycle, carbon dioxide, cooling, diurnal variations, exhibits, greenhouse gas, partial pressure, subtropical zone, surface water, upwelling.
Abstract
An automatic measuring system for the partial pressure, pCO2, of atmospheric and oceanic carbon dioxide was developed. The system was mounted on a moored buoy for routine observation of maritime meteorology in the East China Sea. CO2 observations were conducted from June 29, 1997 to January 6, 1998. During the observation period, the atmospheric pCO2 showed little variation (341-365 μatm), whereas pCO2 in the surface water varied significantly (308-408 μatm). In the summer, pCO2 was higher in the surface water than in the overlying atmosphere, implying that this area was a source for atmospheric CO2, though it became a sink after late September. Time-series data clearly exhibited significant short-term variations in the oceanic pCO2, i.e. sudden variations during the passage of typhoons, and diurnal variations driven by the diurnal variations in the sea-surface temperature under calm conditions. The effects of typhoons on ocean-atmosphere CO2 exchange at the surface could differ, depending on the relative position of the mooring site with respect to the center of the moving typhoons. These differences result from the different contributions of sea-surface cooling, entrainment, and upwelling. The efflux enhanced by three typhoons accounted for 60% of the efflux of CO2 in the warm season. It is suggested that typhoons have a significant impact on the carbon cycle in the western subtropical North Pacific.
Affiliations:
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Ogawa</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Global Environment and Marine Department, Japan Meteorological Agency, Otemachi 1-3-4</s1><s2>Chiyoda-ku, Tokyo 100-8122</s2><s3>JPN</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Japon</country><placeName><settlement type="city">Tokyo</settlement><region type="région">Région de Kantō</region></placeName></affiliation></author><author><name sortKey="Takatani, S" sort="Takatani, S" uniqKey="Takatani S" first="S." last="Takatani">S. Takatani</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Global Environment and Marine Department, Japan Meteorological Agency, Otemachi 1-3-4</s1><s2>Chiyoda-ku, Tokyo 100-8122</s2><s3>JPN</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Japon</country><placeName><settlement type="city">Tokyo</settlement><region type="région">Région de Kantō</region></placeName></affiliation></author><author><name sortKey="Kimoto, H" sort="Kimoto, H" uniqKey="Kimoto H" first="H." last="Kimoto">H. Kimoto</name><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Kimoto Electric Co. Ltd., 3-1, Funahashi-cho</s1><s2>Tennoji-ku, Osaka 543-0024</s2><s3>JPN</s3><sZ>6 aut.</sZ></inist:fA14><country>Japon</country><wicri:noRegion>Tennoji-ku, Osaka 543-0024</wicri:noRegion></affiliation></author><author><name sortKey="Ishii, M" sort="Ishii, M" uniqKey="Ishii M" first="M." last="Ishii">M. Ishii</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Geochemical Research Department, Meteorological Research Institute</s1><s2>Nagamine 1-1, Tsukuba 305-0052</s2><s3>JPN</s3><sZ>2 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country>Japon</country><wicri:noRegion>Nagamine 1-1, Tsukuba 305-0052</wicri:noRegion></affiliation></author><author><name sortKey="Inoue, H Y" sort="Inoue, H Y" uniqKey="Inoue H" first="H. Y" last="Inoue">H. Y. Inoue</name><affiliation wicri:level="1"><inist:fA14 i1="05"><s1>Graduate School of Environmental Earth Science, Hokkaido University, N10W5</s1><s2>Kita-ku, Sapporo 060-0810</s2><s3>JPN</s3><sZ>8 aut.</sZ></inist:fA14><country>Japon</country><wicri:noRegion>Kita-ku, Sapporo 060-0810</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">09-0358076</idno><date when="2009">2009</date><idno type="stanalyst">PASCAL 09-0358076 INIST</idno><idno type="RBID">Pascal:09-0358076</idno><idno type="wicri:Area/PascalFrancis/Corpus">002C38</idno><idno type="wicri:Area/PascalFrancis/Curation">003384</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">002C28</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">002C28</idno><idno type="wicri:doubleKey">0967-0645:2009:Nemoto K:continuous:observations:of</idno><idno type="wicri:Area/Main/Merge">008B97</idno><idno type="wicri:Area/Main/Curation">008412</idno><idno type="wicri:Area/Main/Exploration">008412</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Continuous observations of atmospheric and oceanic CO<sub>2</sub> using a moored buoy in the East China Sea: Variations during the passage of typhoons</title><author><name sortKey="Nemoto, K" sort="Nemoto, K" uniqKey="Nemoto K" first="K." last="Nemoto">K. Nemoto</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Global Environment and Marine Department, Japan Meteorological Agency, Otemachi 1-3-4</s1><s2>Chiyoda-ku, Tokyo 100-8122</s2><s3>JPN</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Japon</country><placeName><settlement type="city">Tokyo</settlement><region type="région">Région de Kantō</region></placeName></affiliation></author><author><name sortKey="Midorikawa, T" sort="Midorikawa, T" uniqKey="Midorikawa T" first="T." last="Midorikawa">T. Midorikawa</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Geochemical Research Department, Meteorological Research Institute</s1><s2>Nagamine 1-1, Tsukuba 305-0052</s2><s3>JPN</s3><sZ>2 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country>Japon</country><wicri:noRegion>Nagamine 1-1, Tsukuba 305-0052</wicri:noRegion></affiliation></author><author><name sortKey="Wada, A" sort="Wada, A" uniqKey="Wada A" first="A." last="Wada">A. Wada</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Typhoon Research Department, Meteorological Research Institute</s1><s2>Nagamine 1-1, Tsukuba 305-0052</s2><s3>JPN</s3><sZ>3 aut.</sZ></inist:fA14><country>Japon</country><wicri:noRegion>Nagamine 1-1, Tsukuba 305-0052</wicri:noRegion></affiliation></author><author><name sortKey="Ogawa, K" sort="Ogawa, K" uniqKey="Ogawa K" first="K." last="Ogawa">K. Ogawa</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Global Environment and Marine Department, Japan Meteorological Agency, Otemachi 1-3-4</s1><s2>Chiyoda-ku, Tokyo 100-8122</s2><s3>JPN</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Japon</country><placeName><settlement type="city">Tokyo</settlement><region type="région">Région de Kantō</region></placeName></affiliation></author><author><name sortKey="Takatani, S" sort="Takatani, S" uniqKey="Takatani S" first="S." last="Takatani">S. Takatani</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Global Environment and Marine Department, Japan Meteorological Agency, Otemachi 1-3-4</s1><s2>Chiyoda-ku, Tokyo 100-8122</s2><s3>JPN</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Japon</country><placeName><settlement type="city">Tokyo</settlement><region type="région">Région de Kantō</region></placeName></affiliation></author><author><name sortKey="Kimoto, H" sort="Kimoto, H" uniqKey="Kimoto H" first="H." last="Kimoto">H. Kimoto</name><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Kimoto Electric Co. Ltd., 3-1, Funahashi-cho</s1><s2>Tennoji-ku, Osaka 543-0024</s2><s3>JPN</s3><sZ>6 aut.</sZ></inist:fA14><country>Japon</country><wicri:noRegion>Tennoji-ku, Osaka 543-0024</wicri:noRegion></affiliation></author><author><name sortKey="Ishii, M" sort="Ishii, M" uniqKey="Ishii M" first="M." last="Ishii">M. Ishii</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Geochemical Research Department, Meteorological Research Institute</s1><s2>Nagamine 1-1, Tsukuba 305-0052</s2><s3>JPN</s3><sZ>2 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country>Japon</country><wicri:noRegion>Nagamine 1-1, Tsukuba 305-0052</wicri:noRegion></affiliation></author><author><name sortKey="Inoue, H Y" sort="Inoue, H Y" uniqKey="Inoue H" first="H. Y" last="Inoue">H. Y. Inoue</name><affiliation wicri:level="1"><inist:fA14 i1="05"><s1>Graduate School of Environmental Earth Science, Hokkaido University, N10W5</s1><s2>Kita-ku, Sapporo 060-0810</s2><s3>JPN</s3><sZ>8 aut.</sZ></inist:fA14><country>Japon</country><wicri:noRegion>Kita-ku, Sapporo 060-0810</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Deep-sea research. Part 2. Topical studies in oceanography</title><title level="j" type="abbreviated">Deep-sea res., Part 2, Top. stud. oceanogr.</title><idno type="ISSN">0967-0645</idno><imprint><date when="2009">2009</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Deep-sea research. Part 2. Topical studies in oceanography</title><title level="j" type="abbreviated">Deep-sea res., Part 2, Top. stud. oceanogr.</title><idno type="ISSN">0967-0645</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Buoy</term><term>Carbon dioxide</term><term>East China Sea</term><term>Entrainment (atmosphere, ocean)</term><term>Marine meteorology</term><term>Mooring</term><term>North Pacific</term><term>Position</term><term>Sea surface</term><term>Sea surface temperature</term><term>Short term variation</term><term>Sudden variation</term><term>Summer</term><term>Time series</term><term>Tropical cyclone</term><term>Typhoon</term><term>atmosphere</term><term>carbon cycle</term><term>carbon dioxide</term><term>cooling</term><term>diurnal variations</term><term>exhibits</term><term>greenhouse gas</term><term>partial pressure</term><term>subtropical zone</term><term>surface water</term><term>upwelling</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Bouée</term><term>Typhon</term><term>Pression partielle</term><term>Dioxyde carbone</term><term>Dioxyde de carbone</term><term>Météorologie maritime</term><term>Eau surface</term><term>Eté</term><term>Atmosphère</term><term>Série temporelle</term><term>Exposition</term><term>Variation court terme</term><term>Variation brusque</term><term>Variation diurne</term><term>Température surface marine</term><term>Position</term><term>Amarrage</term><term>Surface marine</term><term>Refroidissement</term><term>Entraînement (atmosphère, océan)</term><term>Upwelling</term><term>Cycle carbone</term><term>Zone subtropicale</term><term>Cyclone tropical</term><term>Gaz effet serre</term><term>Mer de Chine Est</term><term>Océan Pacifique Nord</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Atmosphère</term><term>Zone subtropicale</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">An automatic measuring system for the partial pressure, pCO<sub>2</sub>, of atmospheric and oceanic carbon dioxide was developed. The system was mounted on a moored buoy for routine observation of maritime meteorology in the East China Sea. CO<sub>2</sub> observations were conducted from June 29, 1997 to January 6, 1998. During the observation period, the atmospheric pCO<sub>2</sub> showed little variation (341-365 μatm), whereas pCO<sub>2</sub> in the surface water varied significantly (308-408 μatm). In the summer, pCO<sub>2</sub> was higher in the surface water than in the overlying atmosphere, implying that this area was a source for atmospheric CO<sub>2</sub>, though it became a sink after late September. Time-series data clearly exhibited significant short-term variations in the oceanic pCO<sub>2</sub>, i.e. sudden variations during the passage of typhoons, and diurnal variations driven by the diurnal variations in the sea-surface temperature under calm conditions. The effects of typhoons on ocean-atmosphere CO<sub>2</sub> exchange at the surface could differ, depending on the relative position of the mooring site with respect to the center of the moving typhoons. These differences result from the different contributions of sea-surface cooling, entrainment, and upwelling. The efflux enhanced by three typhoons accounted for 60% of the efflux of CO<sub>2</sub> in the warm season. It is suggested that typhoons have a significant impact on the carbon cycle in the western subtropical North Pacific.</div></front></TEI><affiliations><list><country><li>Japon</li></country><region><li>Région de Kantō</li></region><settlement><li>Tokyo</li></settlement></list><tree><country name="Japon"><region name="Région de Kantō"><name sortKey="Nemoto, K" sort="Nemoto, K" uniqKey="Nemoto K" first="K." last="Nemoto">K. Nemoto</name></region><name sortKey="Inoue, H Y" sort="Inoue, H Y" uniqKey="Inoue H" first="H. Y" last="Inoue">H. Y. Inoue</name><name sortKey="Ishii, M" sort="Ishii, M" uniqKey="Ishii M" first="M." last="Ishii">M. Ishii</name><name sortKey="Kimoto, H" sort="Kimoto, H" uniqKey="Kimoto H" first="H." last="Kimoto">H. Kimoto</name><name sortKey="Midorikawa, T" sort="Midorikawa, T" uniqKey="Midorikawa T" first="T." last="Midorikawa">T. Midorikawa</name><name sortKey="Ogawa, K" sort="Ogawa, K" uniqKey="Ogawa K" first="K." last="Ogawa">K. Ogawa</name><name sortKey="Takatani, S" sort="Takatani, S" uniqKey="Takatani S" first="S." last="Takatani">S. Takatani</name><name sortKey="Wada, A" sort="Wada, A" uniqKey="Wada A" first="A." last="Wada">A. Wada</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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