ENSO Precipitation Index (ESPI)

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: Curtis, S. and R. Adler

Publication_Date: ongoing

Title: ENSO Precipitation Index (ESPI)

Edition:

Geospatial_Data_Presentation_Form:

Series_Information:

Series_Name:

Issue_Identification:

Publication_Information:

Publication_Place: Greenbelt, MD, USA

Publisher: NASA TRMM Project Office

Other_Citation_Details:

Online_Linkage: http://trmm.gsfc.nasa.gov/ESPIsummary.html

Description:

Abstract:

[Text Source: Curtis, S. and R. Adler, 2000: ENSO indexes based on patterns of satellite-derived precipitation. J. Climate, 13, 2786-2793 and http://trmm.gsfc.nasa.gov/ESPIsummary.html ] A summary of the GPCP precipitation-based ENSO indices (EI, LI, ESPI) The goal in constructing a precipitation-based measure of ENSO was to estimate the gradient of rainfall anomalies across the Pacific basin and ensure a good relationship with SST- and pressure-based indices. Areas were selected that represent the Maritime Continent (MC) (10° N – 10°S; 90° E – 150° E) and central to eastern Pacific (P) (10° N – 10° S; 160° E – 100° W). These regions capture the largest precipitation anomalies associated with the interannual variations of the Walker circulation and contain the largest correlations between GPCP and Nino 3.4 and SOI. Within P and MC the absolute magnitude of the largest correlation is over +0.6. Because of the spatially varying nature of rainfall, it was decided to use a moving block average which would capture the strongest zonal gradients within the equatorial Pacific. This procedure is unlike many fixed area average indices, and allows for a realistic meridional component of the precipitation gradient and migration of the ascending and descending branches of the Walker circulation. Additional Information: http://trmm.gsfc.nasa.gov/ESPIsummary.html

Purpose:

Not Available

Supplemental_Information:

REFERENCE: Curtis, S. and R. Adler 2000 ENSO indexes based on patterns of satellite-derived precipitation J. Climate 13 2786-2793

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19790101

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: 90.0

East_Bounding_Coordinate: 150.0

North_Bounding_Coordinate: 10.0

South_Bounding_Coordinate: -10.0

Spatial_Domain:

Description_of_Geographic_Extent:

Bounding_Coordinates:

West_Bounding_Coordinate: 160.0

East_Bounding_Coordinate: -100.0

North_Bounding_Coordinate: 10.0

South_Bounding_Coordinate: -10.0

Keywords:

Theme:

Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS

Theme_Keyword_Thesaurus: GCMD PLATFORM

Theme_Keyword_Thesaurus: GCMD INSTRUMENT

Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS

Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY

Theme_Keyword_Thesaurus: DATA SET LANGUAGE

Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > PRECIPITATION AMOUNT

Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > PRECIPITATION ANOMALIES

Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > PRECIPITATION RATE

Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > RAIN

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

Theme_Keyword: EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > PRECIPITATION INDICES > ENSO PRECIPITATION INDEX

Theme_Keyword: TRMM > TROPICAL RAINFALL MEASURING MISSION

Theme_Keyword: PR > TRMM PRECIPITATION RADAR

Theme_Keyword: Enso Precipitation Index

Theme_Keyword: Espi

Theme_Keyword: Rainfall Anomalies

Theme_Keyword: El Nino

Theme_Keyword: La Nina

Theme_Keyword: Climate Index

Theme_Keyword: Climate Indices

Theme_Keyword: Climate Change

Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Theme_Keyword: ENGLISH

Place:

Place_Keyword_Thesaurus: GCMD

Place_Keyword: OCEAN > PACIFIC OCEAN

Place_Keyword: GEOGRAPHIC REGION > TROPICS

Temporal:

Temporal_Keyword_Thesaurus: GCMD

Temporal_Keyword: Monthly

Temporal_Keyword: Monthly - < Annual

Access_Constraints: Not Available

Use_Constraints:

Not Available

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: SCOTT, DR. BRAUN

Contact_Position: TECHNICAL CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Address: TRMM Project Scientist

Address: NASA Goddard Space Flight Center

Address: 8800 Greenbelt Road

City: Greenbelt

State_or_Province: MD

Postal_Code: 20771

Country: USA

Contact_Voice_Telephone: 301-614-6316

Contact_Electronic_Mail_Address: Scott.A.Braun@nasa.gov

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: NASA/GSFC/SED/ESD/LA/MAP/TRMM > Tropical Rainfall Measuring Mission, Mesoscale Atmospheric Processes, Laboratory for Atmospheres, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA

Contact_Person: SCOTT, DR. BRAUN

Contact_Position: DATA CENTER CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Address: TRMM Project Scientist

Address: NASA Goddard Space Flight Center

Address: 8800 Greenbelt Road

City: Greenbelt

State_or_Province: MD

Postal_Code: 20771

Country: USA

Contact_Voice_Telephone: 301-614-6316

Contact_Electronic_Mail_Address: Scott.A.Braun@nasa.gov

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: DOC/NOAA/OAR/ESRL/PSD > Physical Sciences Division, Earth System Research Laboratory, OAR, NOAA, U.S. Department of Commerce

Contact_Person: ESRL/PSD DATA INQUIRIES

Contact_Position: DATA CENTER CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Contact_Electronic_Mail_Address: esrl.psd.data@noaa.gov

Resource_Description: ESPI 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://trmm.gsfc.nasa.gov/

Access_Instructions:

DATA CENTER URL

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://www.esrl.noaa.gov/psd/

Access_Instructions:

DATA CENTER URL

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://www.esrl.noaa.gov/psd/data/correlation/espi...

Access_Instructions:

Access to monthly ESPI Precipitation index since 1979

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://precip.gsfc.nasa.gov/ESPItable.html

Access_Instructions:

Access to monthly ESPI, LI and EI indices

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://trmm.gsfc.nasa.gov/trmm_rain/Events/thirty_...

Access_Instructions:

ESPI rainfall anomalies and graphics

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://trmm.gsfc.nasa.gov/ESPIsummary.html

Access_Instructions:

Documentation on how indices were derived

Fees: None

Metadata_Reference_Information:

Metadata_Date: 20051215

Metadata_Review_Date: 20110406

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