Identifying Probable Submarine Hydrothermal Spots in North Santorini Caldera Using the Generalized Moments Method
The presence of active hydrothermal vent fields near residential areas and their possible link to volcanic activity poses a potential hazard to the environment, society, and the economy. By capitalizing on Autonomous Underwater Vehicle sampling methodologies and applying the Generalized Moments Meth...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-09-01
|
| Series: | Geosciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3263/13/9/269 |
| _version_ | 1827726040212963328 |
|---|---|
| author | Ana Dura Paraskevi Nomikou Theo J. Mertzimekis Mark D. Hannington Sven Petersen Serafim Poulos |
| author_facet | Ana Dura Paraskevi Nomikou Theo J. Mertzimekis Mark D. Hannington Sven Petersen Serafim Poulos |
| author_sort | Ana Dura |
| collection | DOAJ |
| description | The presence of active hydrothermal vent fields near residential areas and their possible link to volcanic activity poses a potential hazard to the environment, society, and the economy. By capitalizing on Autonomous Underwater Vehicle sampling methodologies and applying the Generalized Moments Method model for geological and physical processes in these environments, we shed light on the underlying dynamics shaping the physicochemical characteristics of the vents. In this study, we focus on the Northern Caldera of Santorini and, more specifically, on the recorded CTD data (Conductivity, Temperature, Depth). The data sets were collected in 2017 in Santorini using an Autonomous Underwater Vehicle during the GEOMAR POS510 mission. Our research shows that the active vent field within the caldera probably follows a multifractal behavior and exhibits a weak memory effect. Depth Profiles and Time Series show similar behavior among conductivity and temperature. The variance and moments of both parameters underline the existence of two different mechanisms governing the behavior of the vent field. Finally, the structure function shows that changes in the time series are described by a Cauchy–Lorentz distribution. |
| first_indexed | 2024-03-10T22:43:41Z |
| format | Article |
| id | doaj.art-b430c48a22ad4258bff47160d709fcae |
| institution | Directory Open Access Journal |
| issn | 2076-3263 |
| language | English |
| last_indexed | 2024-03-10T22:43:41Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Geosciences |
| spelling | doaj.art-b430c48a22ad4258bff47160d709fcae2023-11-19T10:54:48ZengMDPI AGGeosciences2076-32632023-09-0113926910.3390/geosciences13090269Identifying Probable Submarine Hydrothermal Spots in North Santorini Caldera Using the Generalized Moments MethodAna Dura0Paraskevi Nomikou1Theo J. Mertzimekis2Mark D. Hannington3Sven Petersen4Serafim Poulos5Department of Geology and Geoenvironment, National and Kapodistrian University of Athens, Zografou Campus, GR-15784 Athens, GreeceDepartment of Geology and Geoenvironment, National and Kapodistrian University of Athens, Zografou Campus, GR-15784 Athens, GreeceDepartment of Physics, National and Kapodistrian University of Athens, Zografou Campus, GR-15784 Athens, GreeceGEOMAR—Helmholtz 7 Center for Ocean Research Kiel, D-24148 Kiel, GermanyGEOMAR—Helmholtz 7 Center for Ocean Research Kiel, D-24148 Kiel, GermanyDepartment of Geology and Geoenvironment, National and Kapodistrian University of Athens, Zografou Campus, GR-15784 Athens, GreeceThe presence of active hydrothermal vent fields near residential areas and their possible link to volcanic activity poses a potential hazard to the environment, society, and the economy. By capitalizing on Autonomous Underwater Vehicle sampling methodologies and applying the Generalized Moments Method model for geological and physical processes in these environments, we shed light on the underlying dynamics shaping the physicochemical characteristics of the vents. In this study, we focus on the Northern Caldera of Santorini and, more specifically, on the recorded CTD data (Conductivity, Temperature, Depth). The data sets were collected in 2017 in Santorini using an Autonomous Underwater Vehicle during the GEOMAR POS510 mission. Our research shows that the active vent field within the caldera probably follows a multifractal behavior and exhibits a weak memory effect. Depth Profiles and Time Series show similar behavior among conductivity and temperature. The variance and moments of both parameters underline the existence of two different mechanisms governing the behavior of the vent field. Finally, the structure function shows that changes in the time series are described by a Cauchy–Lorentz distribution.https://www.mdpi.com/2076-3263/13/9/269submarine volcanoSantoriniHellenic Volcanic Archydrothermal ventsactive volcanoesshallow hydrothermal systems |
| spellingShingle | Ana Dura Paraskevi Nomikou Theo J. Mertzimekis Mark D. Hannington Sven Petersen Serafim Poulos Identifying Probable Submarine Hydrothermal Spots in North Santorini Caldera Using the Generalized Moments Method Geosciences submarine volcano Santorini Hellenic Volcanic Arc hydrothermal vents active volcanoes shallow hydrothermal systems |
| title | Identifying Probable Submarine Hydrothermal Spots in North Santorini Caldera Using the Generalized Moments Method |
| title_full | Identifying Probable Submarine Hydrothermal Spots in North Santorini Caldera Using the Generalized Moments Method |
| title_fullStr | Identifying Probable Submarine Hydrothermal Spots in North Santorini Caldera Using the Generalized Moments Method |
| title_full_unstemmed | Identifying Probable Submarine Hydrothermal Spots in North Santorini Caldera Using the Generalized Moments Method |
| title_short | Identifying Probable Submarine Hydrothermal Spots in North Santorini Caldera Using the Generalized Moments Method |
| title_sort | identifying probable submarine hydrothermal spots in north santorini caldera using the generalized moments method |
| topic | submarine volcano Santorini Hellenic Volcanic Arc hydrothermal vents active volcanoes shallow hydrothermal systems |
| url | https://www.mdpi.com/2076-3263/13/9/269 |
| work_keys_str_mv | AT anadura identifyingprobablesubmarinehydrothermalspotsinnorthsantorinicalderausingthegeneralizedmomentsmethod AT paraskevinomikou identifyingprobablesubmarinehydrothermalspotsinnorthsantorinicalderausingthegeneralizedmomentsmethod AT theojmertzimekis identifyingprobablesubmarinehydrothermalspotsinnorthsantorinicalderausingthegeneralizedmomentsmethod AT markdhannington identifyingprobablesubmarinehydrothermalspotsinnorthsantorinicalderausingthegeneralizedmomentsmethod AT svenpetersen identifyingprobablesubmarinehydrothermalspotsinnorthsantorinicalderausingthegeneralizedmomentsmethod AT serafimpoulos identifyingprobablesubmarinehydrothermalspotsinnorthsantorinicalderausingthegeneralizedmomentsmethod |