Nearshore surface temperatures in Antofagasta Bay (Chile) and adjacent upwelling centers
Several years of sea surface temperature data (1997–2003) for the coast of Antofagasta Bay—a semi-enclosed bay in northern Chile—were analyzed in order to further exploring the nature of a warm-water retention pattern inside the bay. Based on time series techniques, we were able to confirm the per...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universidad Autónoma de Baja California
2007-03-01
|
| Series: | Ciencias Marinas |
| Subjects: | |
| Online Access: | http://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1226 |
| _version_ | 1797278631490224128 |
|---|---|
| author | A Piñones JC Castilla R Guiñez JL Largier |
| author_facet | A Piñones JC Castilla R Guiñez JL Largier |
| author_sort | A Piñones |
| collection | DOAJ |
| description |
Several years of sea surface temperature data (1997–2003) for the coast of Antofagasta Bay—a semi-enclosed bay in northern Chile—were analyzed in order to further exploring the nature of a warm-water retention pattern inside the bay. Based on time series techniques, we were able to confirm the persistence of warm water in the bay. This warm feature was found immediately downwind of the upwelling center at Jorgillo Point, where temperatures averaged 2–3ºC more than at the exposed upwelling sites outside and the bay. Temporal and spatial patterns in sea surface temperature were determined and showed being well associated with wind variability, indicated by the significant correlation between the first empirical orthogonal function modes of temperature variability and wind forcing. We discuss how the persistence of this warm feature and the thermal gradients or frontal structures associated with it are likely to play an important role in retaining larvae or other planktonic organisms in the bay.
|
| first_indexed | 2024-03-07T16:11:06Z |
| format | Article |
| id | doaj.art-732018e124d44c0f9170dfed1525008a |
| institution | Directory Open Access Journal |
| issn | 0185-3880 2395-9053 |
| language | English |
| last_indexed | 2024-03-07T16:11:06Z |
| publishDate | 2007-03-01 |
| publisher | Universidad Autónoma de Baja California |
| record_format | Article |
| series | Ciencias Marinas |
| spelling | doaj.art-732018e124d44c0f9170dfed1525008a2024-03-04T16:45:55ZengUniversidad Autónoma de Baja CaliforniaCiencias Marinas0185-38802395-90532007-03-0133110.7773/cm.v33i1.1226Nearshore surface temperatures in Antofagasta Bay (Chile) and adjacent upwelling centersA Piñones0JC Castilla1R Guiñez2JL Largier3Pontificia Universidad Católica de ChilePontificia Universidad Católica de ChilePontificia Universidad Católica de ChileUniversity of California Several years of sea surface temperature data (1997–2003) for the coast of Antofagasta Bay—a semi-enclosed bay in northern Chile—were analyzed in order to further exploring the nature of a warm-water retention pattern inside the bay. Based on time series techniques, we were able to confirm the persistence of warm water in the bay. This warm feature was found immediately downwind of the upwelling center at Jorgillo Point, where temperatures averaged 2–3ºC more than at the exposed upwelling sites outside and the bay. Temporal and spatial patterns in sea surface temperature were determined and showed being well associated with wind variability, indicated by the significant correlation between the first empirical orthogonal function modes of temperature variability and wind forcing. We discuss how the persistence of this warm feature and the thermal gradients or frontal structures associated with it are likely to play an important role in retaining larvae or other planktonic organisms in the bay. http://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1226baysupwellingnorthern Chileupwelling shadowupwelling traplarval retention |
| spellingShingle | A Piñones JC Castilla R Guiñez JL Largier Nearshore surface temperatures in Antofagasta Bay (Chile) and adjacent upwelling centers Ciencias Marinas bays upwelling northern Chile upwelling shadow upwelling trap larval retention |
| title | Nearshore surface temperatures in Antofagasta Bay (Chile) and adjacent upwelling centers |
| title_full | Nearshore surface temperatures in Antofagasta Bay (Chile) and adjacent upwelling centers |
| title_fullStr | Nearshore surface temperatures in Antofagasta Bay (Chile) and adjacent upwelling centers |
| title_full_unstemmed | Nearshore surface temperatures in Antofagasta Bay (Chile) and adjacent upwelling centers |
| title_short | Nearshore surface temperatures in Antofagasta Bay (Chile) and adjacent upwelling centers |
| title_sort | nearshore surface temperatures in antofagasta bay chile and adjacent upwelling centers |
| topic | bays upwelling northern Chile upwelling shadow upwelling trap larval retention |
| url | http://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1226 |
| work_keys_str_mv | AT apinones nearshoresurfacetemperaturesinantofagastabaychileandadjacentupwellingcenters AT jccastilla nearshoresurfacetemperaturesinantofagastabaychileandadjacentupwellingcenters AT rguinez nearshoresurfacetemperaturesinantofagastabaychileandadjacentupwellingcenters AT jllargier nearshoresurfacetemperaturesinantofagastabaychileandadjacentupwellingcenters |