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Area Radio wave propagation / Influence of the ionosphere on radio wave propagation

IEV ref 705-07-87

Symbol
R12

en
twelve-month running-mean sunspot number
the mean value of the international relative sunspot number for the month n obtained by the following equation:

R 12 = 1 12 R n6 + R n+6 2 + k R k MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGe aGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaq Fn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpe WZqaaeaaciWaamGadaGadeaabaGaaqaaaOqaaiaadkfadaWgaaWcba GaaGymaiaaikdaaeqaaOGaeyypa0ZaaSaaaeaacaaIXaaabaGaaGym aiaaikdaaaWaamWaaeaadaWcaaqaaiaadkfadaWgaaWcbaGaamOBai abgkHiTiaaiAdaaeqaaOGaey4kaSIaamOuamaaBaaaleaacaWGUbGa ey4kaSIaaGOnaaqabaaakeaacaaIYaaaaiabgUcaRmaaqafabaGaam OuamaaBaaaleaacaWGRbaabeaaaeaacaWGRbaabeqdcqGHris5aaGc caGLBbGaayzxaaaaaa@4BF0@

for k = n − 5, n − 4, ..., n, ..., n + 5

where Rk is the mean international relative sunspot number for the kth month


fr
moyenne glissante sur douze mois du nombre de taches solaires, f
valeur moyenne du nombre relatif international de taches solaires pour le mois de rang n, obtenue par la formule suivante:

R 12 = 1 12 R n6 + R n+6 2 + k R k MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGe aGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaq Fn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpe WZqaaeaaciWaamGadaGadeaabaGaaqaaaOqaaiaadkfadaWgaaWcba GaaGymaiaaikdaaeqaaOGaeyypa0ZaaSaaaeaacaaIXaaabaGaaGym aiaaikdaaaWaamWaaeaadaWcaaqaaiaadkfadaWgaaWcbaGaamOBai abgkHiTiaaiAdaaeqaaOGaey4kaSIaamOuamaaBaaaleaacaWGUbGa ey4kaSIaaGOnaaqabaaakeaacaaIYaaaaiabgUcaRmaaqafabaGaam OuamaaBaaaleaacaWGRbaabeaaaeaacaWGRbaabeqdcqGHris5aaGc caGLBbGaayzxaaaaaa@4BF0@

pour k = n − 5, n − 4, ..., n, ..., n + 5

Rk est le nombre relatif international de taches solaires moyen pour le mois de rang k


ar
رقم البقعة الشمسية لمتوسط التشغيل لمدة 12 شهر

de
gleitender zwölfmonatiger Mittelwert der Sonnenfleckenzahl, f

es
promedio del número internacional relativo de manchas solares a lo largo de 12 meses

it
numero di macchie solari medio sui dodici mesi (simbolo: R12)

ko
십이 개월 이동 평균 태양흑점수

ja
12か月移動平均太陽黒点数

pl
liczba plam słonecznych wybranego miesiąca

pt
média deslizante em doze meses do número de manchas solares

Publication date: 1995-09
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