Assessment of inter-annual and seasonal variability of the circulation over the shelf and slope off central Chile

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Title: Assessment of inter-annual and seasonal variability of the circulation over the shelf and slope off central Chile
Description:
Abstract:
Assessment of inter-annual and seasonal variability of the circulation over the shelf and slope off central Chile and the development of simple models of free and wind-forced trapped waves Hydrographic data together with current, sea level and wind time-series from several places along the west coast of South America were used to assess the temporal variability along this region. An important set of current meter data used here were obtained during an international study of the Humboldt Current system, as a contribution to the Joint Global Flux Study Project (JGOFS). The extension of this observational effort, supported in a second phase by the FONDAP-Humboldt programme, have allowed the completion of an 8 year record of moored current and temperature over the slope off Coquimbo, near 30S. A sister mooring, located about 500km south from Coquimbo, near 34 45'S, was maintained during October 1992 and July 1995 in order to study the alongshore propogation of current fluctuations. Time series of wind, sea-level and atmospheric pressure have been analysed and current records used to address the time variability at several scales over the slope off Chile. They encompass the moderate 1991-1992 and the strong 1997-1998 El Nino events and the 1995-96 and 1998 La Nina events. Interannual fluctuations of alongshore currents off 30S and seal level along the west coast of South America were analysed using a linear model forced by observed equatorial signal and regional wind stress. In addition, a wind-forced coastal trapped wave model was implemented and run. The circulation off Peninsula de Mejillones was analysed from hydrographic profiles and current-meters moored during January and July 1997.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Published and In press
Supplemental_Information:
REFERENCE: Rutllant J., H. Fuenzalida, R. Torres, & D. Figueroa, 1998. Interaccion oceano-atmosfera-tierra en la region de Antofagasta (Chile, 23 degrees S) : Experimento DICLIMA (Land-air-sea interaction at the Antofagasta region (Chile, 23 degrees S): The DICLIMA experiment. Rev. Chil.Hist. Nat. 75:405-427.
Supplemental_Information:
REFERENCE: Shaffer, G., S. Hormazabal, O. Pizarro & S. Salinas, 1999. Seasonal and interannual variability of currents and temperature over the slope off central Chile. J. Geophys. Res. 104, 29951-29961.
Supplemental_Information:
REFERENCE: Pizarro, O., A. J. Clarke & S. Van Gorder. El Nino, sea level and currents along the South American coast. J. Phys. Oceanogr.
Supplemental_Information:
REFERENCE: Sobarzo, M., D. Figueroa & L. Djurfeldt. Upwelling of subsurface water into the rim of the Biobio submarine canyon as a response to surface winds. Cont. Shelf Res.
Supplemental_Information:
REFERENCE: Submitted
Supplemental_Information:
REFERENCE: Hormazabal, S., G. Shaffer, J. Letelier & O. Ulloa. Remote forcing of SST in the coastal upwelling system off Chile. J. Geophys. Res.
Supplemental_Information:
REFERENCE: Sobarzo, M. & D. Figueroa. The physical structure of a cold filament in an upwelling zone (Peninsula de Mejillones, Chile, 23 degrees S). Deep Sea Res.
Supplemental_Information:
REFERENCE: In preparation
Supplemental_Information:
REFERENCE: Figueroa, D., M. Sobarzo, S. Hormazabal, J. Rutllant. Modulation of the physical coastal environment of an upwelling region produced by remotely low frequency variability. Cont. Shelf Res.
Supplemental_Information:
REFERENCE: Thesis
Supplemental_Information:
REFERENCE: Pizarro, O., 1999. Low frequency fluctuations in the Eastern Boundary Current off South America: Remote and local forcing. Ph. D. Thesis, Goteborg University, Sweden, 1999.
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: -77.16
East_Bounding_Coordinate: -64.9
North_Bounding_Coordinate: -15.72
South_Bounding_Coordinate: -56.79
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: PROJECT
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > PRESSURE ANOMALIES
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > SEA LEVEL PRESSURE
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > SURFACE PRESSURE
Theme_Keyword: EARTH SCIENCE > OCEANS > COASTAL PROCESSES > LONGSHORE CURRENTS
Theme_Keyword: EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > CONTINENTAL MARGINS > CONTINENTAL RISES/SLOPES
Theme_Keyword: EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > CONTINENTAL MARGINS > CONTINENTAL SHELVES
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > BUOY POSITION
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > OCEAN CURRENTS
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > UPWELLING/DOWNWELLING
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > WATER MASSES
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > WIND-DRIVEN CIRCULATION
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CIRCULATION
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN PRESSURE > SEA LEVEL PRESSURE
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN WAVES > WAVE FREQUENCY
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN WAVES > WAVE PERIOD
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN WINDS > WIND STRESS
Theme_Keyword: EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > TELECONNECTIONS > EL NINO SOUTHERN OSCILLATION (ENSO) > ENSO
Theme_Keyword: EARTH SCIENCE > BIOSPHERE > AQUATIC ECOSYSTEMS > PELAGIC HABITAT
Theme_Keyword: GLOBEC > GLOBAL OCEAN ECOSYSTEM DYNAMICS, IGBP
Theme_Keyword: IGBP > INTERNATIONAL GEOSPHERE-BIOSPHERE PROGRAMME
Theme_Keyword: Chile
Theme_Keyword: Circulation
Theme_Keyword: Coastal-trapped Waves
Theme_Keyword: Current Meter Mooring
Theme_Keyword: El Nino
Theme_Keyword: Fondap-humboldt
Theme_Keyword: Globec
Theme_Keyword: Humboldt Current System
Theme_Keyword: La Nina
Theme_Keyword: Longshore Currents
Theme_Keyword: Sea Level
Theme_Keyword: Time Series
Theme_Keyword: Wind Stress
Theme_Keyword: BIOTA
Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Theme_Keyword: ELEVATION
Theme_Keyword: OCEANS
Theme_Keyword: SPANISH
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN > HUMBOLDT CURRENT SYSTEM
Place_Keyword: CONTINENT > SOUTH AMERICA > CHILE
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: RUBEN ESCRIBANO
Contact_Position: INVESTIGATOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: University of Antofagasta
Address: PO Box 170
City: Antofagasta
Country: Chile
Contact_Electronic_Mail_Address: rescribano@uantof.cl
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Not Available
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: UDEC/EBMD > Estacion de Biologia Marina-Dichato, Universidad de Concepcion, Chile
Contact_Person: PROF. VICTOR A GALLARDO
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Fondap-Humboldt Program Office
Address: Estacion de Biologia Marina-Dichato (EBMD)
Address: Universidad de Concepcion
City: Concepcion
Country: Chile
Contact_Voice_Telephone: +56 41 683247
Contact_Facsimile_Telephone: +56 41 683902
Contact_Electronic_Mail_Address: vgallar@udec.cl
Resource_Description: GLOBEC_038_CHL_002
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Not Available
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.udec.cl/carreras/bmarina.html
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Fees: Not Available
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Metadata_Reference_Information:
Metadata_Date: 20010806
Metadata_Review_Date: 20050419
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GLOBEC IPO
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: GLOBEC International Project Office
Address: Plymouth Marine Laboratory
Address: Prospect Place
City: Plymouth
Postal_Code: PL1 3DH
Country: UK
Contact_Voice_Telephone: +44 (0)1752 633401
Contact_Facsimile_Telephone: +44 (0)1752 633101
Contact_Electronic_Mail_Address: globec@pml.ac.uk
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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