[PDF] Top 20 Long-term trends in the relation between daytime and nighttime values of fo F2
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Long-term trends in the relation between daytime and nighttime values of fo F2
... The daytime value of NmF2 ...increases values of the atomic oxygen concentration. The same wind shifts the F2-layer maximum along the magnetic field lines down to lower altitudes into the region of ... See full document
8
Long-term trends of fo F2 independent of geomagnetic activity
... trend values is systematic: for all stations considered the trends for the later years are higher than the trends for the earlier ...netic trends derived for the 1948–1985 period are by about ... See full document
10
An interpretation of the fo F2 and hm F2 long-term trends in the framework of the geomagnetic control concept
... during nighttime) than can be described using the Ap 12 ...the daytime confirms the complexity of the F2-layer storm mechanisms as mentioned ...mid-latitude daytime F2-layer storm ... See full document
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LONG TERM TRENDS IN THE IONOSPHERIC fo F2 IN THE INDIAN ZONE LOW LATITUDE IONOSPHERE
... hourly values of the observed data represented as a r×s array with rows corresponding to months (m=1,2,……,r, r being the total number of month in the data set) and column corresponding to the local time ...longer ... See full document
6
Latitudinal variation of fo F2 hysteresis of solar cycles 20, 21 and 22 and its application to the analysis of long-term trends
... median values for equinoctial months of solar cycles 20, 21 and 22, were analyzed for 37 worldwide ...difference between foF2 in the falling branch of the cycle and the corresponding value of the rising ... See full document
5
Long-term trends in the ionospheric F2 region with different solar activity indices
... foF2 trends are caused by an increasing greenhouse effect, we have to com- pare the mean trend values in the right column of Table 2 with available model ...trend values to an interval corresponding ... See full document
13
The method of determination of the long-term trends in the F2 region independent of geomagnetic activity
... the long-term trends of the F2-layer parameter de- tected recently are mainly due to the long-term changes in geomagnetic activity during the recent ...derive trends ... See full document
11
Relation between Short-Term and Long-Term Variations of Precipitation
... to trends or interannual variations of precipitation. We analyzed nine long-term series of daily precipitation values of the Global Historical Climatology Network (GHCN-D ...the ... See full document
10
F2-layer parameters long-term trends at the Argentine Islands and Port Stanley stations
... the relation of the δfoF2 and δhmF2 values with geomagnetic activity, we used the annual mean values of the Ap 12 geomagnetic ...These values were compared with δfoF2 and δhmF2 for each ... See full document
10
F2-layer parameters long-term trends at the Argentine Islands and Port Stanley stations
... the relation of the δfoF2 and δhmF2 values with geomagnetic activity, we used the annual mean values of the Ap 12 geomagnetic ...These values were compared with δfoF2 and δhmF2 for each ... See full document
9
Relation between land use change and long-term trends of organic carbon in lake water and its importance for acidification assessment
... a long-term decreasing trend of TOC from 1860 up to ...correlation between land use change and long-term trends of TOC could be identified in this ...for long term ... See full document
57
Long term trends in the use of a protected area by small cetaceans in relation to changes in population status
... Where these changes occur during a longer-term study, survey protocols may need to be adapted to reduce sampling het- erogeneity. Similarly, developments in technology, statistical techniques, changing research ... See full document
11
Different long-term trends of the oxygen red 630.0 nm line nightglow intensity as the result of lowering the ionosphere F2 layer
... the nighttime is dissociative recombination of O + 2 ions (Fishkova, 1983; Semeter et ...sphere. Long-term variations in the red line intensity are related to many natural and anthropogenic ... See full document
12
The correlation between solar and geomagnetic activity – Part 2: Long-term trends
... cor- relation coefficient at zero lag (r 0 ), the maximum (r m ) and the corresponding lag time (L m ) between solar (R z ) and ge- omagnetic (aa) activity for a 528-month (44-year) running time window are ... See full document
8
Long-term trends in fo F2: their estimating and origin
... by long-term trend for the dataset analyzed in this ...for long-term variabil- ity the proxies work well (but well does not mean 100% rep- resentation of solar ...trend values from ... See full document
6
A revised approach to the fo F2 long-term trends analysis
... bear F2-layer storm effects (geomagnetic activity effects) which, however, cannot be removed using conven- tional monthly Ap ...the F2-layer storm effects with posi- tive and negative phases depending on ... See full document
13
Geomagnetic control of the <i>fo</i>F2 long-term trends
... foF2 trends in the post-midnight-early-morning LT sector and strong neg- ative trends during daytime hours are found on the sub-auroral stations for the period with increasing geo- magnetic ... See full document
14
Long-term trends of fo E and geomagnetic activity variations
... foE long-term ...to F2-layer trends, a time shift n (in years) of Ap 132 with respect to δfoE 132 variations is required to obtain the least SD for the residuals after the regression ...the ... See full document
10
A revised approach to the ?<i>o</i>F2 long-term trends analysis
... bear F2-layer storm effects (geomagnetic activity effects) which, however, cannot be removed using conven- tional monthly Ap ...the F2-layer storm effects with posi- tive and negative phases depending on ... See full document
14
SINUS CONGESTION AND PAIN DAYTIME NIGHTTIME-
... SINUS CONGESTION AND PAIN DAYTIME NIGHTTIME- acetaminophen, chlorpheniramine maleate, and phenylephrine hydrochloride AAA Pharmaceutical, Inc. Disclaimer: Most OTC drugs are not reviewed and approved by ... See full document
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