Daily Madden-Julian Oscillation Indices

Federal Geographic Data Committee (FGDC) Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Reference_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: NOAA/NWS/CPC

Publication_Date: ongoing

Title: Daily Madden-Julian Oscillation Indices

Edition:

Geospatial_Data_Presentation_Form:

Series_Information:

Series_Name: NOAA/NWS/CPC Indices and Forecasts

Issue_Identification:

Publication_Information:

Publication_Place: Camp Springs, MD

Publisher: NOAA National Weather Service, Center for Climate Prediction

Other_Citation_Details:

Online_Linkage: http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_mjo_index/mjo_index.html

Description:

Abstract:

[Source: NOAA Climate Prediction Center, http://www.cpc.ncep.noaa.gov/ ] An extended Empirical Orthogonal Function (EEOF) analysis is applied to pentad velocity potential at 200-hPa for ENSO-neutral and weak ENSO winters (November-April) during 1979-2000. The first EEOF is composed of ten time-lagged patterns . Ten Madden-Julian Oscillation (MJO) indices are constructed by regressing the daily data onto the ten patterns of the first EEOF. Data is available for the ten MJO indices (normalized) for the previous 6 and 12 months. The MJO Indices are centered at 20E, 70E, 80E, 100E 120E, 140E, 160E, 120W, 40W and 10W indicating centers of enhanced convection for the ten indices, which are determined from the ten time-lagged patterns of the first EEOF of CHI200. Anomalies are based on the 1979-1995 period, and each index is normalized by its standard deviation during ENSO-neutral and weak ENSO winters (November-April) in 1979-2000. Pentad MJO indices are available since 1978.

Purpose:

Not Available

Supplemental_Information:

REFERENCE: Madden, R. A., and P. R. Julian, 1971: Detection of a 40-50 day oscillation in the zonal wind in the tropical Pacific.J. Atmos. Sci., 28, 702-708. Madden, R. A., and P. R. Julian, 1994: Observations of the 40-50 day tropical oscillation: a review. Mon. Wea. Rev., 122, 814-837. Jones, C., D.E. Waliser and C. Gautier 1998. The influence of the Madden-Julian Oscillation on ocean surface heat fluxes and sea-surface temperatures. J. Climate 11, 1057-72. (also on the web: Coupled modes of air-sea interaction and the Madden and Julian oscillation.) "http://www.crseo.ucsb.edu/esrg/papers/paper3/toga_paper.html" Rui, H., and B. Wang, 1990: Development characteristics and dynamic structure of tropical intraseasonal convection anomalies. J. Atmos. Sci., 47, 357-379. Jones, C. and B.C. Weare 1996. The role of low-level moisture convergence and ocean latent-heat fluxes in the Madden and Julian Oscillation. J. Climate, 9, 3086-104. Hayashi, Y. and D.G. Golder 1993. Tropical 40-50 and 25-30 day oscillations. J. Atmos. Sci., 50, 464-94. For additional MJO references, see: "http://www.coaps.fsu.edu/lib/elninobib/Madden-Julian-Oscillation/"

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19780101

Ending_Date: Unknown

Currentness_Reference:Unknown

Status:

Progress: In Work

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Description_of_Geographic_Extent:

Bounding_Coordinates:

West_Bounding_Coordinate: 80.0

East_Bounding_Coordinate: 70.0

North_Bounding_Coordinate: 30.0

South_Bounding_Coordinate: 0.0

Keywords:

Theme:

Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS

Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS

Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY

Theme_Keyword_Thesaurus: DATA SET LANGUAGE

Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ALTITUDE > GEOPOTENTIAL HEIGHT

Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > OSCILLATIONS > MADDEN-JULIAN OSCILLATION INDEX

Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > PRESSURE ANOMALIES

Theme_Keyword: EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > TELECONNECTIONS > EL NINO SOUTHERN OSCILLATION (ENSO) > ENSO

Theme_Keyword: EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > TELECONNECTIONS > MADDEN-JULIAN OSCILLATION

Theme_Keyword: Mjo

Theme_Keyword: Madden-julian Oscillation Index

Theme_Keyword: Climate Index

Theme_Keyword: Climate Indices

Theme_Keyword: Atmospheric Circulation

Theme_Keyword: Climate Change

Theme_Keyword: Enso

Theme_Keyword: El Nino Southern Oscillation

Theme_Keyword: Tropical Intersasonal Oscillation

Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Theme_Keyword: ENGLISH

Place:

Place_Keyword_Thesaurus: GCMD

Place_Keyword: GEOGRAPHIC REGION > EQUATORIAL

Place_Keyword: GEOGRAPHIC REGION > TROPICS

Temporal:

Temporal_Keyword_Thesaurus: GCMD

Temporal_Keyword: Daily, Pentad

Access_Constraints: Not Available

Use_Constraints:

Not Available

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: JON GOTTSCHALCK

Contact_Position: TECHNICAL CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Contact_Electronic_Mail_Address: Jon.Gottschalck@noaa.gov

Browse_Graphic:

Browse_Graphic_File_Name: http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_mjo_index/tm_long_order_2002.gif

Browse_Graphic_File_Description:

MJO Indices for 2002

Browse_Graphic_File_Type: GIF

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

Spatial_Reference_Information:

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: DOC/NOAA/NWS/NCEP/CPC > Climate Prediction Center, National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce

Contact_Person: JON GOTTSCHALCK

Contact_Position: DATA CENTER CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Contact_Electronic_Mail_Address: Jon.Gottschalck@noaa.gov

Resource_Description: MJO Index

Distribution_Liability:

Not Available

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ascii

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://www.cpc.ncep.noaa.gov/

Access_Instructions:

DATA CENTER URL

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://www.cpc.ncep.noaa.gov/products/precip/CWlin...

Access_Instructions:

Access to MJO Index documentation, graphs, and data

Fees: None

Metadata_Reference_Information:

Metadata_Date: 20030213

Metadata_Review_Date: 20091104

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