By: Gordon Rutherford
WORKS CITED:
By: Gordon Rutherford
:Product: Forecast Discussion
:Issued: 2022 Feb 27 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
Solar Activity.24 hr Summary...
Solar activity was at very low levels with a few B-class flares observed
on, or behind the E limb. The two spotted regions on the disk, Region
2954 (N17W06, Hsx/alpha) and Region 2955 (N14E04, Hsx/alpha) were both
stable with a single B-class flare observed from Region 2955. No
Earth-directed CMEs were observed in available coronagraph imagery.
.Forecast...
Solar activity is expected to remain at very low levels with a slight
chance for C-class activity through the period 27-29 Feb.
Energetic Particles.24 hr Summary...
The greater than 2 MeV electron flux reached high levels with a peak
flux of 1,216 pfu observed at 26/1755 UTC. The 10 MeV proton flux
remained at background levels.
.Forecast...
The greater than 2 MeV electron flux is expected to reach moderate to
high levels levels on 27-28 Feb and 01 Mar due to high speed winds from
a series of geoeffective coronal holes. The greater than 10 MeV proton
flux is expected to be at background levels on 27-28 Feb and 01 Mar.
Solar Wind.24 hr Summary...
Solar wind parameters, as measured by the DSCOVR spacecraft, reflected
mostly nominal conditions. Total magnetic field strength was at or below
4 nT while the Bz component was primarily oriented northward. Solar wind
speeds steadily declined through the period from ~430 km/s to ~350 km/s.
Phi angle was predominantly oriented in the positive sector.
.Forecast...
The solar wind environment is expected to range from near background
levels to slightly enhanced levels due to the influence from a series of
isolated, small, positive polarity CH HSSs.
Geospace.24 hr Summary...
The geomagnetic field was at quiet levels.
.Forecast...
Quiet to unsettled conditions are expected on 27 Feb, increasing to
unsettled to active levels on 28 Feb and 01 Mar, due to positive
polarity CH HSS influence.
SOLAR CYCLE MAGNETIC FIELD GEOMETRIES
By: Gordon Rutherford
By: Gordon Rutherford
Northern and Southern Hemisphere
- Planetary Spatial Separation
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WORKS CITED: