CME Scoreboard

Prediction for CME (2014-09-02T16:00:00-CME-001)

Ensemble modeling estimates the spread/uncertainty in CME arrival time predictions using the WSA-ENLIL+Cone model due to uncertainties in CME input parameters.  This is achieved by measuring N CME input parameters, then performing an ensemble of N runs of WSA-ENLIL cone model.  This gives an ensemble of N CME arrival times and impact estimates.

NASA GSFC SWRC ENLIL settings:
ENLIL version: 2.7
Resolution: low2 (256x30x90)
Ambient settings: a3b1f
WSA version: 2.2
(Enlil 2.7 w/res:low2 ambient:a3b1f, WSA2.2)

Please enter a copy of the entire notification here:
## NASA Goddard Space Flight Center, Space Weather Research Center ( SWRC )
## Message Type: Space Weather Notification - CME update (ensemble) (Missions Near Earth)
##
## Message Issue Date: 2014-09-03T19:32:40Z
## Message ID: 20140903-AL-002
##
## Disclaimer: NOAA's Space Weather Prediction Center (http://swpc.noaa.gov) is the United States Government official source for space weather forecasts. This "Experimental Research Information" consists of preliminary NASA research products and should be interpreted and used accordingly.


## Summary:

BETA PRODUCT. ENSEMBLE PRODUCT IS STILL IN DEVELOPMENT MODE. PLEASE LET US KNOW IF YOU HAVE ANY SUGGESTIONS FOR MODIFICATIONS. 

Ensemble modeling update on CME with ID 2014-09-02T17:00:00-CME-001 (see previous notification 20140903-AL-001).  Based on heliospheric ensemble modeling carried out at NASA GSFC Space Weather Research Center, it is estimated that the CME may impact NASA missions near Earth. Out of 36 ensemble members (see notes section), 36 (100%) indicate impact at NASA missions near Earth. Ensemble simulations indicate that the leading edge of the CME will reach NASA missions near Earth between about 2014-09-04T23:53Z and 2014-09-06T00:13Z (average arrival 2014-09-05T08:52Z). The roughly estimated ensemble-based expected range of the maximum Kp index is 3-6 (below minor to moderate).

Links to the ensemble details of the modeled event:
http://iswa.gsfc.nasa.gov/ENSEMBLE/2014-09-03_ncmes1_sims36_LIHUE077/20140902_170000_ncmes1_sims36_LIHUE077_anim_tim-den.gif
http://iswa.gsfc.nasa.gov/ENSEMBLE/2014-09-03_ncmes1_sims36_LIHUE077/20140902_170000_ncmes1_sims36_LIHUE077_arrival_Earth.gif

## Notes:
Due to the poor imagery available the CME parameters are very approximate, which is reflected on the wide spread of the ensemble results.  

SWRC CME ensemble is obtained by building sets of initial CME parameters and by carrying out separate simulations for each set. This approach will allow mapping of uncertainties in the initial CME parameters into statistical characterization of the CME impact at locations of interest.

Description of links: The first link shows the WSA-ENLIL+Cone model animation for the median ensemble member and the links following show histograms of predicted arrival times at various locations.

For the full details of the modeled event, please go here:
http://iswa.gsfc.nasa.gov/ENSEMBLE/2014-09-03_ncmes1_sims36_LIHUE077/Detailed_results_20140902_170000_ncmes1_sims36_LIHUE077.txt
###


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NOAA's Space Weather Prediction Center (http://swpc.noaa.gov) is the United States Government official source for space weather forecasts. This "Experimental Research Information" consists of preliminary NASA research products and should be interpreted and used accordingly.

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If you are looking for the official U.S. Government forecast for space weather, please go to NOAA's Space Weather Prediction Center (https://swpc.noaa.gov). This "Experimental Research Information" consists of preliminary NASA research products and should be interpreted and used accordingly.

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