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Earth magnetic field and geomagnetic activity effects on long-term trends in the F2 layer at mid-high latitudes
(Elsevier, 2006-12)
It is well known that the Earth magnetic field, as well as geomagnetic activity, presents long-term variations.Both phenomena affect the height of the F2 layer peak, hmF2, and the maximum electron concentration estimated ...
Trends in the F2 ionospheric layer due to long-term variations in the Earth's magnetic field
(Elsevier, 2009-06)
The Earth's magnetic field presents long-term variations with changes in strength and orientation. Particularly, changes in the dip angle (I) and, consequently, in the sin(I)cos(I) factor, affect the thermospheric neutral ...
Possible sources of long-term variations in the mid-latitude ionosphere
(Bentham open, 2011-10)
Trends in the upper atmosphere, together with the global warming of the lower atmosphere, are part of the global change of the Earth system. In the present work, which is focused in the upper atmosphere, long-term variations ...
FoF2 long-term trend linked to Earth's magnetic field secular variation at a station under the northern crest of the equatorial ionization anomaly
(American Geophysical Union, 2016-01)
Long-term trend of the critical frequency of the F2 ionospheric region, foF2, at Phu Thuy station (21.03°N, 105.96°E), Vietnam, located under the northern crest of the equatorial ionization anomaly, EIA, is studied. Annual ...
Molecular analysis of genetic stability in long-term micropropagated shoots of banana using RAPD and ISSR markers
(Pontificia Universidad Católica de Valparaíso, 2007)
The large-scale effect of forest cover on long-term streamflow variations in mediterranean catchments of central Chile
(MDPI, 2022)
Forest ecosystems play an important role in hydrological processes as surface and subsurface runoff, as well as the storage of water at the catchment scale. Therefore, it is important to have a greater understanding of the ...
The influence of hydro‐climatic and anthropogenic effects on the long‐term variation of commercial fisheries in a large floodplain river
(John Wiley & Sons Ltd, 2020-10-21)
This study deals with the effects of climate fluctuations and anthropogenic impacts on fisheries of Paraná River over the last 100 years. It is the first attempt to appraise the influence of hydro-climatic and anthropogenic ...