[PDF] Top 20 The correlation between solar and geomagnetic activity – Part 2: Long-term trends
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The correlation between solar and geomagnetic activity – Part 2: Long-term trends
... shift between the sunspot numbers and the aa in- ...for solar cycles may be also related to the non-linearity between R z and ...of geomagnetic activity by solar activity ... See full document
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The correlation between solar and geomagnetic activity – Part 1: Two-term decomposition of geomagnetic activity
... slower solar wind plasma is more difficult to transmit the magnetosphere and decays more than the faster ...relationship between lnaa and lnR z , this study shows that the aa values are all in ... See full document
10
The correlation between solar and geomagnetic activity – Part 3: An integral response model
... relationship between aa and R z has been analyzed by point-point ...the correlation between them is unsatisfactory whether consider- ing the time delay of aa to R z or ...relationship between ... See full document
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Long-term trends of fo F2 independent of geomagnetic activity
... and solar index data we used a 12-month smoothing of the E81 ...and 2 demonstrate that it is actually so. Figure 1 shows the relative trends (without getting rid of the geo- magnetic activity ... See full document
10
Connection between ENSO phenomena and solar and geomagnetic activity
... (Table 2). Only data NINO 1 + 2 correlates significantly with the Ap-index ...the correlation coefficient in the time interval 1950–1970 is much higher than in that after ...lation between ... See full document
7
Ionospheric F1 layer long-term trends and the geomagnetic control concept
... the trends analysis in the F2-layer was described by Mikhailov et ...of geomagnetic activity in ionospheric trends, was used with some modifications in the present ...foF1 ... See full document
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Solar Activity, Solar Wind and Geomagnetic Signatures
... 3.2. Solar Wind Characteristic and Geomagnetic Activity during the Four Latest Solar Cycles 20, 21, 22, and 23 Time scales for solar variation range from solar flare timescales ... See full document
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The relationship between plasmapause, solar wind and geomagnetic activity between 2007 and 2011
... highest correlation coefficient in each of the MLT sectors and also when all MLT are binned together is always found at a time lag of less than 30 h, and thus we took the length of 30 h as ...Fig. 2, we ... See full document
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ANGEO - Correlations between SAR arc intensity and solar and geomagnetic activity
... Revised: 2 November 1998 = Accepted: 10 November 1998 ...ships between SAR arc intensities acquired by the Paci®c Northwest Laboratory Photometer Network during 1978±1988 and solar and ... See full document
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Ionospheric long-term trends: can the geomagnetic control and the greenhouse hypotheses be reconciled?
... netic activity for adequate analysis of the long-term trends has been stressed in this paper, as well as in our previous publications on the ...when geomagnetic effects are removed only ... See full document
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Ionospheric long-term trends: can the geomagnetic control and the greenhouse hypotheses be reconciled?
... netic activity for adequate analysis of the long-term trends has been stressed in this paper, as well as in our previous publications on the ...when geomagnetic effects are removed only ... See full document
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Geomagnetic and ionospheric data analysis over Antarctica: a contribution to the long term trends investigation
... oF 2 ionosonde data ac- quired at mid and high latitudes reveals a general decreas- ing of the F2 plasma frequency over more than two solar cy- cles, showing steeper trends over the high latitude ... See full document
7
Secular trends in storm-level geomagnetic activity
... Monotonic trends in K More general than a linear trend is a monotonic trend, by which we mean a persistent increase (or decrease) over a cer- tain duration of time, but where the functional form is, oth- erwise, ... See full document
12
Long term trends in the ionospheric response to solar extreme ultraviolet variations
... lowest correlation of ...maximum correlation is observed again for the He II and Mg II indices, which have a correlation coefficient of ...and 2 d, respectively. Only a weak correlation ... See full document
19
Long-term trends of fo E and geomagnetic activity variations
... relationship between foE trends and geomag- netic activity long-term variations has been revealed for the first ...foF2 trends it is possible to speak about the ... See full document
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Long term variability in solar wind velocity and IMF intensity and the relationship between solar wind parameters & geomagnetic activity
... of solar minimum. of solar wind velocity from 1845 using the mean monthly val- ues of aa index between 1845 and 1867 given by Nevanlinna and Kataja (1993) and the published values of aa indices for ... See full document
12
Long term trends in geomagnetic daily variation
... magnetic activity. On disturbed days variations in the solar wind has a consider- able effect on the coupled magnetosphere-ionosphere sys- tem and as a result all currents are energized, especially those at ... See full document
5
Latitude dependence of long-term geomagnetic activity and its solar wind drivers
... mainly between the geomagnetic latitudes 65 ◦ to 70 ◦ N (Ritter et ...Region 2. South and north of the average oval, geomagnetic variations are normally less frequent and much ... See full document
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The method of determination of the long-term trends in the F2 region independent of geomagnetic activity
... nongeomagnetic trends at various stations is a matter of another publication, it is worth giving an example of the application of the approach proposed to another ...relations between k(obs), k(A p ), and ... See full document
11
Correlation between Solar Semi Diameter and Geomagnetic Time Series
... of geomagnetic storms actually veri- fied in the ...the solar activity cycle, there is no sta- tistical significant offset between peaks in the solar di- ameter series and negative ... See full document
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