FORUM RADIOAMATORIALE - SIX METER MAGIC BAND ANALYSIS
    FORUM RADIOAMATORIALE
Sostieni il nostro lavoro. Per altri modi leggi FAQ


FORUM RADIOAMATORIALE
Nome Utente:

Password:
 


Registrati
Salva Password
Password Dimenticata?

 

    


Menù riservato agli utenti registrati - Registrati  




 Tutti i Forum
 Discussioni
 PROPAGAZIONE IONOSFERICA
 SIX METER MAGIC BAND ANALYSIS
I seguenti utenti stanno leggendo questo Forum Qui c'è:


Tutti gli utenti possono inserire NUOVE discussioni in questo forum Tutti gli utenti possono rispondere in questo forum
  Bookmark this Topic  
| Altri..
Autore Discussione  

IK3IUL

Utente Normale


Inserito il - 03/07/2018 : 14:11:15  Link diretto a questa discussione  Mostra Profilo  Visita l'Homepage di IK3IUL Invia a IK3IUL un Messaggio Privato
:Product: Weekly Highlights and Forecasts
:Issued: 2018 Sep 17 0146 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/weekly.html
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity
10 - 16 September 2018

Solar activity was very low throughout the period. Region 2722 (S07,
Lo=215, class/area Bxo/10 on 11 Sep) produced the strongest flare of
the period, a B1 flare at 11/0759 UTC. The region decayed to plage
in the following days. No Earth-directed CMEs were observed in
available coronagraph imagery.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit ranged
from normal background to high levels. High levels were reached on
12-16 Sep and moderate levels were reached on 10-11 Sep. All
enhancements in electron flux are associated with the influence of a
positive polarity CH HSS.

Geomagnetic field activity ranged from quiet to G2 (Moderate)
geomagnetic storm levels. The onset of a CIR ahead of a positive
polarity CH HSS on 10 Sep increased geomagnetic activity to G1
levels. As wind speeds increased to around 550 km/s on 11 Sep,
geomagnetic activity further increased to G2 (Moderate) geomagnetic
storm levels. Total magnetic field strength (Bt) peaked at 15 nT
late on 10 Sep. Bt then decreased to near 5-6 nT by mid-day on 11
Sep, which decreased the geomagnetic response to mostly quiet to
active levels. One additional period of isolated G1 (Minor)
geomagnetic storming was observed early on 14 Sep. Wind speeds
persisted at elevated levels through 16 Sep, with a notable increase
to a peak around 650 km/s observed early on 15 Sep. As wind speeds
decreased, quiet to unsettled levels on 15 Sep gave way to quiet
levels on 16 Sep.

Forecast of Solar and Geomagnetic Activity
17 September - 13 October 2018

Solar activity is expected to be very low throughout the outlook
period.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is
expected to be at moderate levels on 06-08 Oct and at high levels
for the remainder of the outlook period. All enhancements in
electron flux are expected due to multiple, recurrent CH HSSs.

Geomagnetic field activity is expected to range from quiet to G2
(Moderate) geomagnetic storm levels. G2 (Moderate) geomagnetic storm
levels are expected on 08 Oct; G1 (Minor) geomagnetic storm levels
are expected on 07 Oct and 10 Oct; active conditions are expected on
17 Sep, 23 Sep, 02 Oct and 11 Oct; unsettled conditions are expected
on 18 Sep, 24 Sep, 01 Oct, 09 Oct and 12 Oct. All levels of elevated
geomagnetic activity are due to the anticipated influence of
multiple, recurrent CH HSSs.








Modificato da - IK3IUL in Data 17/09/2018 11:32:28

 Messaggi: 64  ~  Membro dal: 04/02/2014  ~  Ultima visita: 18/09/2018

ik0fta

Utente Medio

Nota: 

Inserito il - 18/09/2018 : 08:14:49  Link diretto a questa risposta  Mostra Profilo  Visita l'Homepage di ik0fta Invia a ik0fta un Messaggio Privato

Buongiorno.
Non vorrei sbagliarmi ma il titolo del thread è fuorviante.
Il riportare le previsioni della attività solari del NOAA è una cosa, sicuramente, molto rilevante per tutte le gamme radio e non solo per i 50 MHz.
La propagazione in 6m - almeno durante gli anni di minima - è poco "prevedibile" (almeno cercando di ricavarla dai dati pubblicati) essendo - prevalentemente - limitata al fenomeno dell'Esporadico e non leggo, poi, sull'argomento, alcuna analisi specifica.
Nei periodi di maggiore attività solare (fra 3 o 4 anni) la cosa sarà differente ma le previsioni NOAA riguarderanno, sempre e comunque, l'attività solare con relativa influenza sulle onde radio in tutte le gamme (non solo e non prevalentemente i sei metri).
Non sarebbe il caso di dare al thread un nome più corretto come, ad esempio: "Weekly Highlights and Forecasts by Noaa" o cosa similare?



Messaggio di IK3IUL

:Product: Weekly Highlights and Forecasts
:Issued: 2018 Sep 17 0146 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/weekly.html
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity
10 - 16 September 2018

Solar activity was very low throughout the period. Region 2722 (S07,
Lo=215, class/area Bxo/10 on 11 Sep) produced the strongest flare of
the period, a B1 flare at 11/0759 UTC. The region decayed to plage
in the following days. No Earth-directed CMEs were observed in
available coronagraph imagery.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit ranged
from normal background to high levels. High levels were reached on
12-16 Sep and moderate levels were reached on 10-11 Sep. All
enhancements in electron flux are associated with the influence of a
positive polarity CH HSS.

Geomagnetic field activity ranged from quiet to G2 (Moderate)
geomagnetic storm levels. The onset of a CIR ahead of a positive
polarity CH HSS on 10 Sep increased geomagnetic activity to G1
levels. As wind speeds increased to around 550 km/s on 11 Sep,
geomagnetic activity further increased to G2 (Moderate) geomagnetic
storm levels. Total magnetic field strength (Bt) peaked at 15 nT
late on 10 Sep. Bt then decreased to near 5-6 nT by mid-day on 11
Sep, which decreased the geomagnetic response to mostly quiet to
active levels. One additional period of isolated G1 (Minor)
geomagnetic storming was observed early on 14 Sep. Wind speeds
persisted at elevated levels through 16 Sep, with a notable increase
to a peak around 650 km/s observed early on 15 Sep. As wind speeds
decreased, quiet to unsettled levels on 15 Sep gave way to quiet
levels on 16 Sep.

Forecast of Solar and Geomagnetic Activity
17 September - 13 October 2018

Solar activity is expected to be very low throughout the outlook
period.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is
expected to be at moderate levels on 06-08 Oct and at high levels
for the remainder of the outlook period. All enhancements in
electron flux are expected due to multiple, recurrent CH HSSs.

Geomagnetic field activity is expected to range from quiet to G2
(Moderate) geomagnetic storm levels. G2 (Moderate) geomagnetic storm
levels are expected on 08 Oct; G1 (Minor) geomagnetic storm levels
are expected on 07 Oct and 10 Oct; active conditions are expected on
17 Sep, 23 Sep, 02 Oct and 11 Oct; unsettled conditions are expected
on 18 Sep, 24 Sep, 01 Oct, 09 Oct and 12 Oct. All levels of elevated
geomagnetic activity are due to the anticipated influence of
multiple, recurrent CH HSSs.











  Firma di ik0fta 
Sergio, IK0FTA - Sez. 0001 - ARI Roma.

Contro la dittatura Asburgica Brecht avrebbe detto : "Una risata vi seppellirà" ;-) .. L'Asburgo illegale dei 45m (cqww docet), è nudo!!!

 Messaggi: 481  ~  Membro dal: 17/01/2011  ~  Ultima visita: 18/09/2018 Torna all'inizio della Pagina
  Discussione  
  Bookmark this Topic  
| Altri..
 
Vai a:

Herniasurgery.it | Snitz.it | Crediti Snitz Forums 2000
Questa pagina è stata generata in 0,11 secondi.