Estimation of the along-shore flow in Peru-Chile Undercurrent

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Title: Estimation of the along-shore flow in Peru-Chile Undercurrent
Description:
Abstract:
Title: Estimation of the along-shore flow in the Peru-Chile Undercurrent and its inter-annual seasonal and along-shore variability. The Humboldt Current system, bound by the steep continental slope and narrow shelf of western South America, is one of the four major Eastern Ocean Boundary Current systems of the world. Equator-ward winds predominate during most of the year north of about 33S, driving a large coastal upwelling system that extends from central Chile to northern Peru. The large scale mean circulation and water properties distribution is consistent, in general, with a Sverdrup balance, while the physical coastal environment is dominated by the coastal upwelling, the persistent subsurface pole-ward Peru-Chile Undercurrent (PCU) and inter-annual variability related to El Nino-Southern oscillation (ENSO) and intra-seasonal, remotely-forced coastal-trapped waves. During the last 3 years (1997-2000), current measurements from two sites near 30S, started in 1991, continued with the support of the FONDAP-Humboldt programme. The time-series will cover the period from November 1991 to September 2000, including the 1991-92 and the strong 1997-98 El Nino, as well as the 1995-96 and the 1998-99 La Nina. One recording current meter (RCM)is located in the deep ocean at about 150km off the coast in a water depth of ~4200m with 5 Aanderaa RCM's located at 100m, 400m, 900m, 1900m and 3400m. The other mooring lays over the slope at ~15km from the coast in a water depth of ~850m. The latter line has 3 RCM's, at 220m, 450m and 750m. During 1998, a new mooring (equipped with 3 Aanderaa RCM's located at 240m, 450m and 750m depth and one upward looking ADCP situated at 120m) have been maintained over the slope off northern Chile around 21S. In addition, a hydrographic transect, extending about 170km offshore, near 30S, has been occupied regularly twice a year since November 1991.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Published and In press Shaffer, G., S. E. Hormazabal, O. Pizarro, & S. Salinas, 1999. Seasonal and interannual variability of currents and temperature off central Chile. J. Geoph.. 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. (In press).
Supplemental_Information:
REFERENCE: In preparation
Supplemental_Information:
REFERENCE: Pizarro, O., G. Shaffer & O. Ulloa. Interannual changes in the Peru-Chile Undercurrent. To be submitted to J. Geophys. Res.
Supplemental_Information:
REFERENCE: Other publications
Supplemental_Information:
REFERENCE: Pizarro, O., 1999. Low frequency fluctuations in the Eastern Boundary Current off South America: Remote and local forcing. Ph.D. Thesis, Gvteborg 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: GCMD PLATFORM
Theme_Keyword_Thesaurus: GCMD INSTRUMENT
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 > OCEANS > COASTAL PROCESSES > LONGSHORE CURRENTS
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > ACOUSTIC SCATTERING > ADCP
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 > WIND-DRIVEN CIRCULATION
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: ERS-1 > EUROPEAN REMOTE SENSING SATELLITE-1
Theme_Keyword: ERS-2 > EUROPEAN REMOTE SENSING SATELLITE-2
Theme_Keyword: CURRENT METERS
Theme_Keyword: ADCP > ACOUSTIC DOPPLER CURRENT PROFILER
Theme_Keyword: GLOBEC > GLOBAL OCEAN ECOSYSTEM DYNAMICS, IGBP
Theme_Keyword: IGBP > INTERNATIONAL GEOSPHERE-BIOSPHERE PROGRAMME
Theme_Keyword: Globec
Theme_Keyword: Chile
Theme_Keyword: Fondap-humboldt
Theme_Keyword: Humboldt Current System
Theme_Keyword: Eastern Ocean Boundary Current
Theme_Keyword: Variability
Theme_Keyword: El Nino
Theme_Keyword: Upwelling
Theme_Keyword: Current Measurements
Theme_Keyword: Wind Stress
Theme_Keyword: BIOTA
Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
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_047_CHL_011
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: 20011015
Metadata_Review_Date: 20070919
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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