Probable regional geothermal field reconnaissance in the Aegean region from modern multi-temporal night LST imagery
Identifieur interne : 000060 ( Main/Exploration ); précédent : 000059; suivant : 000061Probable regional geothermal field reconnaissance in the Aegean region from modern multi-temporal night LST imagery
Auteurs : D. Zouzias [Grèce] ; George Ch. Miliaresis [Grèce] ; K. St. Seymour [Canada]Source :
- Environmental earth sciences : (Print) [ 1866-6280 ] ; 2011.
Descripteurs français
- Pascal (Inist)
- Champ géothermique, Actuel, Imagerie, Satellite, Température surface, Pixel, Modèle numérique élévation, Distribution spatiale, Arc volcanique, Enthalpie, Interprétation, Télédétection spatiale, Anomalie thermique, Volcan, Granodiorite, Pluton, Puits forage, Mer Ionienne, Crète, Ile Milos, Iles Dodécanèse, Mer Egée.
- Wicri :
- topic : Satellite, Interprétation, Mer Ionienne.
English descriptors
- KwdEn :
- Aegean Sea, Crete, Dodecanese, Ionian Sea, Milos, Pixel, Space remote sensing, boreholes, digital elevation models, enthalpy, geothermal fields, granodiorites, imagery, interpretation, modern, plutons, satellites, spatial distribution, surface temperature, thermal anomalies, volcanic arcs, volcanoes.
Abstract
The Hellenic Peninsula and the adjacent Aegean and Ionian seas are segmented into regions on the basis of Terra satellite-MODIS instrument derived land surface temperatures (LST) to test if they can be used in the field reconnaissance for potential geothermal targets, each region representing a different thermal signature. The method has been used successfully to identify hot spot and geothermal activity in the Afar Triangle and in the Red Sea. Night monthly average LST values per pixel, since 2001, are used in this work for geothermal field identification. Average LST seasonal variability is expressed by a common centroid curve of pixel cluster. Clusters were subsequently ranked in increasing LST according to their centroids. Cluster-2 represents by far the Aegean volcanic arc (AVA) which comprises the high enthalpy (320 and 350°C, respectively) geothermal fields of Milos and Nisyros. The interpretation of LST terrain segmentation into sub-clusters of Cluster-2 is consistent with thermal anomalies related to the volcano-islands of the AVA, the occurrence of thermal anomalies related to granodiorite plutons in the Cyclades and to the volcano-related anomalies of the Dodecanese Province. We conclude that the identification of such thermal anomalies obtained by a combination of remote sensing (LST), regional geology and field data (borehole, thermal spring and subsurface hydrothermal reservoir temperatures) can be a particularly useful exploration tool for localizing geothermal anomalies.
Affiliations:
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Le document en format XML
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Miliaresis</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Geology, University of Patras</s1><s2>26504 Rion</s2><s3>GRC</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Grèce</country><wicri:noRegion>26504 Rion</wicri:noRegion></affiliation></author><author><name sortKey="Seymour, K St" sort="Seymour, K St" uniqKey="Seymour K" first="K. St." last="Seymour">K. St. Seymour</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Geography, Urban Planning and Environment, Concordia University</s1><s2>Montreal, QC H3G1M8</s2><s3>CAN</s3><sZ>3 aut.</sZ></inist:fA14><country>Canada</country><wicri:noRegion>Montreal, QC H3G1M8</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">11-0166701</idno><date when="2011">2011</date><idno type="stanalyst">PASCAL 11-0166701 INIST</idno><idno type="RBID">Pascal:11-0166701</idno><idno type="wicri:Area/PascalFrancis/Corpus">000011</idno><idno type="wicri:Area/PascalFrancis/Curation">000029</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000007</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000007</idno><idno type="wicri:doubleKey">1866-6280:2011:Zouzias D:probable:regional:geothermal</idno><idno type="wicri:Area/Main/Merge">000060</idno><idno type="wicri:Area/Main/Curation">000060</idno><idno type="wicri:Area/Main/Exploration">000060</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Probable regional geothermal field reconnaissance in the Aegean region from modern multi-temporal night LST imagery</title><author><name sortKey="Zouzias, D" sort="Zouzias, D" uniqKey="Zouzias D" first="D." last="Zouzias">D. Zouzias</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Geology, University of Patras</s1><s2>26504 Rion</s2><s3>GRC</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Grèce</country><wicri:noRegion>26504 Rion</wicri:noRegion></affiliation></author><author><name sortKey="Miliaresis, George Ch" sort="Miliaresis, George Ch" uniqKey="Miliaresis G" first="George Ch." last="Miliaresis">George Ch. Miliaresis</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Geology, University of Patras</s1><s2>26504 Rion</s2><s3>GRC</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Grèce</country><wicri:noRegion>26504 Rion</wicri:noRegion></affiliation></author><author><name sortKey="Seymour, K St" sort="Seymour, K St" uniqKey="Seymour K" first="K. St." last="Seymour">K. St. Seymour</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Geography, Urban Planning and Environment, Concordia University</s1><s2>Montreal, QC H3G1M8</s2><s3>CAN</s3><sZ>3 aut.</sZ></inist:fA14><country>Canada</country><wicri:noRegion>Montreal, QC H3G1M8</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Environmental earth sciences : (Print)</title><title level="j" type="abbreviated">Environ. earth sci. : (Print)</title><idno type="ISSN">1866-6280</idno><imprint><date when="2011">2011</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Environmental earth sciences : (Print)</title><title level="j" type="abbreviated">Environ. earth sci. : (Print)</title><idno type="ISSN">1866-6280</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aegean Sea</term><term>Crete</term><term>Dodecanese</term><term>Ionian Sea</term><term>Milos</term><term>Pixel</term><term>Space remote sensing</term><term>boreholes</term><term>digital elevation models</term><term>enthalpy</term><term>geothermal fields</term><term>granodiorites</term><term>imagery</term><term>interpretation</term><term>modern</term><term>plutons</term><term>satellites</term><term>spatial distribution</term><term>surface temperature</term><term>thermal anomalies</term><term>volcanic arcs</term><term>volcanoes</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Champ géothermique</term><term>Actuel</term><term>Imagerie</term><term>Satellite</term><term>Température surface</term><term>Pixel</term><term>Modèle numérique élévation</term><term>Distribution spatiale</term><term>Arc volcanique</term><term>Enthalpie</term><term>Interprétation</term><term>Télédétection spatiale</term><term>Anomalie thermique</term><term>Volcan</term><term>Granodiorite</term><term>Pluton</term><term>Puits forage</term><term>Mer Ionienne</term><term>Crète</term><term>Ile Milos</term><term>Iles Dodécanèse</term><term>Mer Egée</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Satellite</term><term>Interprétation</term><term>Mer Ionienne</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The Hellenic Peninsula and the adjacent Aegean and Ionian seas are segmented into regions on the basis of Terra satellite-MODIS instrument derived land surface temperatures (LST) to test if they can be used in the field reconnaissance for potential geothermal targets, each region representing a different thermal signature. The method has been used successfully to identify hot spot and geothermal activity in the Afar Triangle and in the Red Sea. Night monthly average LST values per pixel, since 2001, are used in this work for geothermal field identification. Average LST seasonal variability is expressed by a common centroid curve of pixel cluster. Clusters were subsequently ranked in increasing LST according to their centroids. Cluster-2 represents by far the Aegean volcanic arc (AVA) which comprises the high enthalpy (320 and 350°C, respectively) geothermal fields of Milos and Nisyros. The interpretation of LST terrain segmentation into sub-clusters of Cluster-2 is consistent with thermal anomalies related to the volcano-islands of the AVA, the occurrence of thermal anomalies related to granodiorite plutons in the Cyclades and to the volcano-related anomalies of the Dodecanese Province. We conclude that the identification of such thermal anomalies obtained by a combination of remote sensing (LST), regional geology and field data (borehole, thermal spring and subsurface hydrothermal reservoir temperatures) can be a particularly useful exploration tool for localizing geothermal anomalies.</div></front></TEI><affiliations><list><country><li>Canada</li><li>Grèce</li></country></list><tree><country name="Grèce"><noRegion><name sortKey="Zouzias, D" sort="Zouzias, D" uniqKey="Zouzias D" first="D." last="Zouzias">D. Zouzias</name></noRegion><name sortKey="Miliaresis, George Ch" sort="Miliaresis, George Ch" uniqKey="Miliaresis G" first="George Ch." last="Miliaresis">George Ch. Miliaresis</name></country><country name="Canada"><noRegion><name sortKey="Seymour, K St" sort="Seymour, K St" uniqKey="Seymour K" first="K. St." last="Seymour">K. St. Seymour</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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