Coronal Mass Ejections (CMEs) of 2012/03

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Jie Zhang and Oscar Olmedo
Publication_Date: Unknown
Title: Coronal Mass Ejections (CMEs) of 2012/03
Edition:
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name:
Issue_Identification:
Publication_Information:
Publication_Place:
Publisher: George Mason University
Other_Citation_Details:
Online_Linkage: http://spaceweather.gmu.edu/seeds/mkmovie_ql.php?cme=20120308.013839.w068.v0415.p226&frame=9
Description:
Abstract:
The sun erupted with one of the largest solar flares of this solar cycle on March 6, 2012 at 7PM EST. This flare was categorized as an X5.4, making it the second largest flare -- after an X6.9 on August 9, 2011 -- since the sun’s activity segued into a period of relatively low activity called solar minimum in early 2007. The current increase in the number of X-class flares is part of the sun’s normal 11-year solar cycle, during which activity on the sun ramps up to solar maximum, which is expected to peak in late 2013. About an hour later, at 8:14 PM ET, March 6, the same region let loose an X1.3 class flare. An X1 is 5 times smaller than an X5 flare. These X-class flares erupted from an active region named AR 1429 that rotated into view on March 2. Prior to this, the region had already produced numerous M-class and one X-class flare. The region continues to rotate across the front of the sun, so the March 6 flare was more Earthward facing than the previous ones. It triggered a temporary radio blackout on the sunlit side of Earth that interfered with radio navigation and short wave radio. In association with these flares, the sun also expelled two significant coronal mass ejections (CMEs), which are travelling faster than 600 miles a second and may arrive at Earth in the next few days. In the meantime, the CME associated with the X-class flare from March 4 has dumped solar particles and magnetic fields into Earth’s atmosphere and distorted Earth's magnetic fields, causing a moderate geomagnetic storm, rated a G2 on a scale from G1 to G5. Such storms happen when the magnetic fields around Earth rapidly change strength and shape. A moderate storm usually causes aurora and may interfere with high frequency radio transmission near the poles. This storm is already dwindling, but the Earth may experience another enhancement if the most recent CMEs are directed toward and impact Earth. As of March 8, the storm was fairly mild since the magnetic fields from the CMEs were partially aligned with Earth's own and thus slid around the magnetosphere. However, the geomagnetic storm has increased because the magnetic fields of the CMEs have now changed direction such that they can more easily deposit magnetic energy and radiation into Earth's environment. However, the geomagnetic storms due to coronal mass ejections (CMEs) have increased in strength, and are now rated a G3 on a scale from G1 to G5. Besides the August 2011 X-class flare, the last time the sun sent out flares of this magnitude was in 2006. There was an X6.5 on December 6, 2006 and an X9.0 on December 5, 2006. Like the most recent events, those two flares erupted from the same region on the sun, which is a common occurrence. For more information please visit: http://www.nasa.gov/mission_pages/sunearth/news/News030712-X5-4.html
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Fox, K. 2012 Geomagnetic Storm Strength Increases online NASA http://www.nasa.gov/mission_pages/sunearth/news/News030712-X5-4.html
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: Not Available
East_Bounding_Coordinate: Not Available
North_Bounding_Coordinate: Not Available
South_Bounding_Coordinate: Not Available
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > SUN-EARTH INTERACTIONS > SOLAR ACTIVITY > CORONAL MASS EJECTIONS
Theme_Keyword: GEOSCIENTIFIC INFORMATION
Theme_Keyword: ENGLISH
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: OSCAR OLMEDO
Contact_Person_Primary:
Contact_Person: JIE ZHANG
Contact_Position: TECHNICAL CONTACT
Contact_Position: TECHNICAL CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: 4400 University Drive, MSN 3A4
City: Fairfax
State_or_Province: VA
Postal_Code: 22030
Country: United States
Contact_Address:
Address_Type: Mailing and Physical Address
Address: 451, Jinqiao Road
City: Shanghai
State_or_Province: Shanghai
Postal_Code: 200136
Country: P.R.C.
Contact_Voice_Telephone: (703) 993-2400
Contact_Voice_Telephone: (8621) 5871-7576
Contact_Electronic_Mail_Address: oolmedo@gmu.edu
Contact_Electronic_Mail_Address: zhangjie@pric.gov.cn
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: GMU/PHYS-ASTR > Department of Physics and Astronomy, George Mason University
Contact_Person: GEORGE MASON UNIVERSITY SPACE WEATHER LAB FACULTY
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: 4400 University Drive, MSN 3A4
City: Fairfax
State_or_Province: VA
Postal_Code: 22030
Country: United States
Contact_Voice_Telephone: (703) 993-1002
Contact_Facsimile_Telephone: (703) 993-4622
Contact_Electronic_Mail_Address: swl-faculty-list@turtle.gmu.edu
Resource_Description: MAR0812_CME
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.physics.gmu.edu/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://spaceweather.gmu.edu/seeds/mkmovie_ql.php?c...
Access_Instructions:
Visualization of CME
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://spaceweather.gmu.edu/seeds/ql_lasco/2012/03...
Access_Instructions:
Fees: Not Available
Back to Top
Metadata_Reference_Information:
Metadata_Date: 20120702
Metadata_Review_Date: 20120710
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GCMD User Support Office
Contact_Organization: NASA Global Change Master Directory
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Not Available
City: Lanham
State_or_Province: MD
Postal_Code: 20706
Country: USA
Contact_Voice_Telephone: Not Available
Contact_Electronic_Mail_Address: gcmduso@gcmd.gsfc.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