COADS-based Southern Oscillation Index (SOI), 1854-1997

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: NOAA Climate Diagnostics Center, Comprehensive Ocean-Atmosphere Data Set (COADS)
Publication_Date: Unknown
Title: COADS-based Southern Oscillation Index (SOI), 1854-1997
Edition:
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name:
Issue_Identification:
Publication_Information:
Publication_Place: Seattle, Washington, USA
Publisher: Joint Institute for the Study of the Atmosphere and Ocean (JISAO)
Other_Citation_Details:
Online_Linkage:
Description:
Abstract:
The University of Washington Joint Institute for the Study of the Atmosphere and Ocean (JISAO) offers a COADS-based Southern Oscillation Index 1854-1997 dataset. A version of the Southern Oscillation Index (SOI) is presented here that is derived from ship-of-opportunity sea-level pressure (SLP) data contained in the Comprehensive Ocean-Atmosphere Data Set (COADS). The Southern Oscillation (SO) is an east-west pressure difference that dominates the year to year climate variability of the tropics. The SO can be seen in the following map of the correlation of monthly-mean SLP anomalies with a time series of the eastern equatorial Pacific SST anomalies. A &Tahiti& time series is calculated as the average SLP anomaly over the regions of negative correlations shown above, weighted by both the correlation value at each gridpoint and by the number of observations for that gridpoint in each year and month, and is named after the island at (18S, 150W). A &Darwin& time series is calculated in a similar manner for the regions of positive correlations, and is named after the station at (13S, 131E) in northern Australia. The station data at Tahiti and Darwin have traditionally been used to define the SO. The &Tahiti& and &Darwin& indices are calculated using data within 20-degrees latitude of the equator, and the &SOI& index is defined as the difference of the two, &Tahiti& minus &Darwin.& Indices calculated using a broader band of latitudes are not as well correlated with eastern Pacific SST. The choice of latitude band is important for the &Tahiti& index and not for &Darwin.& The anomalies are with respect to 1950-79. [Summary Adapted from the JISAO Homepage]
Purpose:
Not Available
Supplemental_Information:
Not Available
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 18540701
Ending_Date: 19971231
Currentness_Reference:Unknown
Status:
Progress: In Work
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: -180.0
East_Bounding_Coordinate: 180.0
North_Bounding_Coordinate: 30.0
South_Bounding_Coordinate: -30.0
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 131.0
East_Bounding_Coordinate: 131.0
North_Bounding_Coordinate: -13.0
South_Bounding_Coordinate: -13.0
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 150.0
East_Bounding_Coordinate: 150.0
North_Bounding_Coordinate: -18.0
South_Bounding_Coordinate: -18.0
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > OSCILLATIONS
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > PRESSURE ANOMALIES
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > SEA LEVEL PRESSURE
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE > SST
Theme_Keyword: EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > TELECONNECTIONS > EL NINO SOUTHERN OSCILLATION (ENSO) > ENSO
Theme_Keyword: El Nino
Theme_Keyword: Matlab
Theme_Keyword: Netcdf
Theme_Keyword: El Nino Southern Oscillation
Theme_Keyword: Enso
Theme_Keyword: Southern Oscillation Index
Theme_Keyword: Soi
Theme_Keyword: Slp
Theme_Keyword: Slp Anomalies
Theme_Keyword: Sst Anomalies
Theme_Keyword: Climate Index
Theme_Keyword: Climate Indices
Theme_Keyword: Climate Change
Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Theme_Keyword: OCEANS
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: OCEAN > INDIAN OCEAN
Place_Keyword: OCEAN > PACIFIC OCEAN
Place_Keyword: CONTINENT > AUSTRALIA/NEW ZEALAND > AUSTRALIA
Place_Keyword: GEOGRAPHIC REGION > EQUATORIAL
Place_Keyword: GEOGRAPHIC REGION > TROPICS
Access_Constraints: Not Available
Use_Constraints:
Please cite the dataset originator if you use this data.
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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: UWA/ATMOS/JISAO > Joint Institute for the Study of the Atmosphere and Ocean, Department of Atmospheric Sciences, University of Washington
Contact_Person: TODD MITCHELL
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Contact_Electronic_Mail_Address: mitchell@atmos.washington.edu
Resource_Description: JISAO_COADS_SOI_SLP
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ASCII, MATLAB
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.jisao.washington.edu/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://icoads.noaa.gov/
Access_Instructions:
The Comprehensive Ocean-Atmosphere Data Set (COADS) home page.
Fees: None
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Metadata_Reference_Information:
Metadata_Date: 19990727
Metadata_Review_Date: 20070910
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: SCOTT A. RITZ
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: NASA Goddard Space Flight Center
Address: Global Change Master Directory
City: Greenbelt
State_or_Province: Maryland
Postal_Code: 20771
Country: USA
Contact_Voice_Telephone: 301-614-5126
Contact_Facsimile_Telephone: 301-614-5268
Contact_Electronic_Mail_Address: Scott.A.Ritz@nasa.gov
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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