Blocking Index

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Tibaldi, S., and F. Molteni
Publication_Date: ongoing
Title: Blocking Index
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/MJO/block.shtml
Description:
Abstract:
[Source: NOAA Climate Prediction Center, http://www.cpc.ncep.noaa.gov/ ] The blocking index of Tibaldi and Molteni (1990) was modified from that of Lejenas and Okland (1983). The index is local and instantaneous, ideally suited for real-time atmospheric monitoring, isolating regions of easterly flow at 500 hPa associated with high-latitude blocks. This dataset uses the blocking index calculation for the northern hemisphere, however the index can be easily modified to examine blocking in the southern hemisphere. Blocking in the southern hemisphere typically occurs at lower latitudes when compared with the northern hemisphere. The index follows Tibaldi et al. (1994).
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Lejenas, H., and H. Okland 1983 Characteristics of Northern Hemisphere blocking as determined from a long time series of observational data Tellus 35A 350-362
Supplemental_Information:
REFERENCE: Tibaldi, S., and F. Molten 1990 On the operational predictability of blocking Tellus 42A 343-365
Supplemental_Information:
REFERENCE: Tibaldi, S., E. Tosi, A. Navarra, and L. Pedulli 1994 Northern and Southern Hemisphere seasonal variability of blocking frequency and predictability Monthly Weather Review 122 1971-2003
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20020101
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: -180.0
East_Bounding_Coordinate: 180.0
North_Bounding_Coordinate: 90.0
South_Bounding_Coordinate: 0.0
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: -180.0
East_Bounding_Coordinate: 180.0
North_Bounding_Coordinate: -0.0
South_Bounding_Coordinate: -90.0
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 > BLOCKING INDEX
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > PRESSURE ANOMALIES
Theme_Keyword: EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > TELECONNECTIONS > BLOCKING INDEX
Theme_Keyword: Blocking Index
Theme_Keyword: Climate Index
Theme_Keyword: Climate Indices
Theme_Keyword: Forecast Indices
Theme_Keyword: Atmospheric Circulation
Theme_Keyword: Atmospheric Blocking
Theme_Keyword: Climate Change
Theme_Keyword: Geopotential Gradient Height
Theme_Keyword: Ghgs
Theme_Keyword: Blocking Strength
Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: GEOGRAPHIC REGION > NORTHERN HEMISPHERE
Place_Keyword: GEOGRAPHIC REGION > SOUTHERN HEMISPHERE
Temporal:
Temporal_Keyword_Thesaurus: GCMD
Temporal_Keyword: Daily
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: ED O'LENIC
Contact_Position: TECHNICAL CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Contact_Electronic_Mail_Address: Ed.Olenic@noaa.gov
Back to Top
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
Back to Top
Spatial_Reference_Information:
Back to Top
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: ED O'LENIC
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Contact_Electronic_Mail_Address: Ed.Olenic@noaa.gov
Resource_Description: Blocking 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 blocking index data, documentation, and graphs.
Fees: None
Back to Top
Metadata_Reference_Information:
Metadata_Date: 20030211
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
Back to Top
[ Update this Record ]


Link to Web Site