Impact of short-wavelength sea-level oscillations on coastal biological zoning : Evidence from Nisyros Island (Aegean Sea), and implications for the use of the Biological Mean Sea Level as a geodetic datum
Identifieur interne : 000030 ( PascalFrancis/Checkpoint ); précédent : 000029; suivant : 000031Impact of short-wavelength sea-level oscillations on coastal biological zoning : Evidence from Nisyros Island (Aegean Sea), and implications for the use of the Biological Mean Sea Level as a geodetic datum
Auteurs : S. C. Stiros [Grèce] ; P. A. Pirazzoli [France]Source :
- Journal of coastal research [ 0749-0208 ] ; 2004.
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Abstract
An analysis of tide-gauge and atmospheric data reveals that a transient, unusual sea-level drop occurred in mid-April 1997 along coasts of the Nisyros island volcano, SE Aegean Sea. This event had an amplitude several times larger than the average tidal range (∼6 cm) and caused a transient shift of coastal biological zones and a biological anomaly, the signs of which survived for at least one year. This proves first, that the observed sea-level low was an effect of meteorological origin, not related to a clustering of seismicity which affected Nisyros and the wider area. Second, that the coastal biological zoning and the Biological Mean Sea Level (BMSL) are stable and characteristic in each site, and do not depend on short-wavelength fluctuations of the sea level. And third, that biological observations can be used to identify the detailed history of recent sea-level changes caused by tectonic, volcanic or even meteorological effects; the amplitude of such changes may be as low as a few tens of centimeters. An implication of the above is that in rocky, nearly tideless and low-energy coasts, BMSL (which generally corresponds to the Mean Low Waters during spring tides) approximates Mean Sea Level (MSL) with an accuracy similar to that obtained from ∼1 year long tide-gauge records, and therefore can define a geodetic datum suitable for all engineering projects.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Impact of short-wavelength sea-level oscillations on coastal biological zoning : Evidence from Nisyros Island (Aegean Sea), and implications for the use of the Biological Mean Sea Level as a geodetic datum</title><author><name sortKey="Stiros, S C" sort="Stiros, S C" uniqKey="Stiros S" first="S. C." last="Stiros">S. C. Stiros</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Geodesy Laboratory, Department of Civil Engineering, Patras University</s1><s2>Patras 26500</s2><s3>GRC</s3><sZ>1 aut.</sZ></inist:fA14><country>Grèce</country><wicri:noRegion>Patras 26500</wicri:noRegion></affiliation></author><author><name sortKey="Pirazzoli, P A" sort="Pirazzoli, P A" uniqKey="Pirazzoli P" first="P. A." last="Pirazzoli">P. A. Pirazzoli</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>CNRS Laboratoire de Géographie Physique</s1><s2>92195 Meudon-Bellevue</s2><s3>FRA</s3><sZ>2 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Île-de-France</region><settlement type="city">Meudon-Bellevue</settlement></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">04-0427961</idno><date when="2004">2004</date><idno type="stanalyst">PASCAL 04-0427961 INIST</idno><idno type="RBID">Pascal:04-0427961</idno><idno type="wicri:Area/PascalFrancis/Corpus">000031</idno><idno type="wicri:Area/PascalFrancis/Curation">000009</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000030</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000030</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Impact of short-wavelength sea-level oscillations on coastal biological zoning : Evidence from Nisyros Island (Aegean Sea), and implications for the use of the Biological Mean Sea Level as a geodetic datum</title><author><name sortKey="Stiros, S C" sort="Stiros, S C" uniqKey="Stiros S" first="S. C." last="Stiros">S. C. Stiros</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Geodesy Laboratory, Department of Civil Engineering, Patras University</s1><s2>Patras 26500</s2><s3>GRC</s3><sZ>1 aut.</sZ></inist:fA14><country>Grèce</country><wicri:noRegion>Patras 26500</wicri:noRegion></affiliation></author><author><name sortKey="Pirazzoli, P A" sort="Pirazzoli, P A" uniqKey="Pirazzoli P" first="P. A." last="Pirazzoli">P. A. Pirazzoli</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>CNRS Laboratoire de Géographie Physique</s1><s2>92195 Meudon-Bellevue</s2><s3>FRA</s3><sZ>2 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Île-de-France</region><settlement type="city">Meudon-Bellevue</settlement></placeName></affiliation></author></analytic><series><title level="j" type="main">Journal of coastal research</title><title level="j" type="abbreviated">J. coast. res.</title><idno type="ISSN">0749-0208</idno><imprint><date when="2004">2004</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of coastal research</title><title level="j" type="abbreviated">J. coast. res.</title><idno type="ISSN">0749-0208</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aegean Islands</term><term>Aegean Sea</term><term>accuracy</term><term>anomalies</term><term>bathymetry</term><term>changes of level</term><term>earthquakes</term><term>ecosystems</term><term>eustacy</term><term>fluctuations</term><term>geodesy</term><term>impact statements</term><term>oscillations</term><term>sea level</term><term>seismicity</term><term>volcanism</term><term>volcanoes</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Iles Mer Egée</term><term>Mer Egée</term><term>Niveau mer</term><term>Oscillation</term><term>Volcan</term><term>Anomalie</term><term>Sismicité</term><term>Fluctuation</term><term>Variation niveau</term><term>Eustatisme</term><term>Précision</term><term>Ecosystème</term><term>Géodésie</term><term>Bathymétrie</term><term>Ile Nisyros</term><term>Séisme</term><term>Volcanisme</term><term>Etude impact milieu</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Séisme</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">An analysis of tide-gauge and atmospheric data reveals that a transient, unusual sea-level drop occurred in mid-April 1997 along coasts of the Nisyros island volcano, SE Aegean Sea. This event had an amplitude several times larger than the average tidal range (∼6 cm) and caused a transient shift of coastal biological zones and a biological anomaly, the signs of which survived for at least one year. This proves first, that the observed sea-level low was an effect of meteorological origin, not related to a clustering of seismicity which affected Nisyros and the wider area. Second, that the coastal biological zoning and the Biological Mean Sea Level (BMSL) are stable and characteristic in each site, and do not depend on short-wavelength fluctuations of the sea level. And third, that biological observations can be used to identify the detailed history of recent sea-level changes caused by tectonic, volcanic or even meteorological effects; the amplitude of such changes may be as low as a few tens of centimeters. An implication of the above is that in rocky, nearly tideless and low-energy coasts, BMSL (which generally corresponds to the Mean Low Waters during spring tides) approximates Mean Sea Level (MSL) with an accuracy similar to that obtained from ∼1 year long tide-gauge records, and therefore can define a geodetic datum suitable for all engineering projects.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0749-0208</s0></fA01><fA02 i1="01"><s0>JCRSEK</s0></fA02><fA03 i2="1"><s0>J. coast. res.</s0></fA03><fA05><s2>20</s2></fA05><fA06><s2>1</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Impact of short-wavelength sea-level oscillations on coastal biological zoning : Evidence from Nisyros Island (Aegean Sea), and implications for the use of the Biological Mean Sea Level as a geodetic datum</s1></fA08><fA11 i1="01" i2="1"><s1>STIROS (S. C.)</s1></fA11><fA11 i1="02" i2="1"><s1>PIRAZZOLI (P. A.)</s1></fA11><fA14 i1="01"><s1>Geodesy Laboratory, Department of Civil Engineering, Patras University</s1><s2>Patras 26500</s2><s3>GRC</s3><sZ>1 aut.</sZ></fA14><fA14 i1="02"><s1>CNRS Laboratoire de Géographie Physique</s1><s2>92195 Meudon-Bellevue</s2><s3>FRA</s3><sZ>2 aut.</sZ></fA14><fA20><s1>244-255</s1><s7>2</s7></fA20><fA21><s1>2004</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>20944</s2><s5>354000113748820170</s5></fA43><fA44><s0>0000</s0><s1>© 2004 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>42 ref.</s0></fA45><fA47 i1="01" i2="1"><s0>04-0427961</s0></fA47><fA60><s1>P</s1><s3>PR</s3></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Journal of coastal research</s0></fA64><fA66 i1="01"><s0>USA</s0></fA66><fC01 i1="01" l="ENG"><s0>An analysis of tide-gauge and atmospheric data reveals that a transient, unusual sea-level drop occurred in mid-April 1997 along coasts of the Nisyros island volcano, SE Aegean Sea. 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C." last="Stiros">S. C. Stiros</name></noRegion></country><country name="France"><region name="Île-de-France"><name sortKey="Pirazzoli, P A" sort="Pirazzoli, P A" uniqKey="Pirazzoli P" first="P. A." last="Pirazzoli">P. A. Pirazzoli</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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