Affichage des archives de samedi, 29 juillet 2000
Rapport d'activité solaire
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Rapport d'activité solaire et géophysique 2000 Jul 29 2200 UTCFait par le NOAA © SWPC et adapté par SpaceWeatherLive.com
Rapport de l'USAF/NOAA sur l'activité solaire et géophysique
SDF numéro 211 publié à 2200Z le 29 JUL 2000IA. Analyse des régions solaires actives et activité du 28-2100Z au 29-2100Z SOLAR ACTIVITY HAS BEEN LOW. SEVERAL C-CLASS FLARES
WERE OBSERVED, THOUGH MANY WERE OPTICALLY UNCORRELATED. AN
OPTICALLY UNCORRELATED TYPE II SWEEP WAS OBSERVED AT 28/2222Z, MOST
LIKELY RESULTING FROM ACTIVITY BEHIND THE LIMB. THE LARGEST FLARE
OBSERVED WAS A C3.5/SF FROM REGION 9105 (N14E54). SMALLER
C-CLASS/SF FLARES WERE OBSERVED FROM REGIONS 9100 (S29W28), 9103
(N08W11), AND NEW REGION 9107 (S19E69). REGION 9103 EXHIBITED
CONTINUED GROWTH, WHILE REGION 9097 (N09W68) HAS FURTHER DECAYED.
NEW REGIONS NUMBERED TODAY INCLUDE 9107, 9108 (S09W18), AND 9109
(S07E40).
IB. Prévisions d'activité solaire
SOLAR ACTIVITY IS EXPECTED TO BE LOW
FOR THE NEXT THREE DAYS, WITH A CHANCE FOR ISOLATED M-CLASS FLARES.
IIA. GEOPHYSICAL ACTIVITY SUMMARY 28/2100Z TO 29/2100Z:
THE GEOMAGNETIC FIELD RANGED FROM PREDOMINANTLY ACTIVE TO MINOR STORM
LEVELS, WITH AN ISOLATED PERIOD OF MAJOR STORMING AT HIGH LATITUDES.
ACTIVITY WAS DUE TO CONTINUED EFFECTS OF TRANSIENT MATERIAL PASSAGE
FROM THE CME OBSERVED ON 25 JULY. BY LATE IN THE PERIOD, THE
GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED.
IIB. Prévision de l'activité géophysique
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE UNSETTLED TO ACTIVE FOR THE NEXT THREE DAYS. ACTIVE
LEVELS MAY BE OBSERVED IN CONJUNCTION WITH POSSIBLE INFLUENCE OF
CORONAL HOLES EXPECTED BY DAY THREE.
III. Probabilité d'éruption solaire du 30 JUL au 01 AUG
| Classe M | 25% | 25% | 25% |
| Classe X | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | GREEN | ||
IV. Flux Penticton 10.7 cm
Observé 29 JUL 153 Prévisionnel 30 JUL-01 AUG 150/150/155 Moyenne des 90 derniers jours 29 JUL 189
V. Indice géomagnetique A
OBSERVED AFR/AP 28 JUL 016/030 ESTIMATED AFR/AP 29 JUL 021/026 PREDICTED AFR/AP 30 JUL-01 AUG 010/015-010/012-010/010
VI. Probabilités d'activité géomagnétique du 30 JUL au 01 AUG
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 30% | 25% | 25% |
| Tempête mineure | 15% | 10% | 05% |
| Tempête majeure/sévère | 05% | 05% | 01% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 30% | 30% | 25% |
| Tempête mineure | 20% | 15% | 10% |
| Tempête majeure/sévère | 05% | 05% | 01% |
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