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Mid to High latitude variability

Seasonal variability and descent of mid-latitude sporadic E layers at Arecibo

Seasonal variability and descent of mid-latitude sporadic E layers at Arecibo

... the upper E region semidiurnal tidal wavelengths increase with altitude, as shown for example by Zhou et al. (2005). Finally, in the present study we are primarily interested in the layers that showed good continuity. ...

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High resolution palaeoceanography and palaeoclimatology from mid and high latitude Late Cretaceous laminated sediments

High resolution palaeoceanography and palaeoclimatology from mid and high latitude Late Cretaceous laminated sediments

... Similar to today, the Pacific Ocean was characterised by an east-west sea surface temperature gradient of ~4ºC (Otto-Bliesner et al., 2002) and as such the main mechanism for ENSO-type dynamics in the ocean-climate ...

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Comparative Study of High and Mid Latitude foF2 during Low Solar Activity

Comparative Study of High and Mid Latitude foF2 during Low Solar Activity

... hourly variability of foF2 at Bhopal station during all the 12 months of the year ...hourly variability of foF2 at Bhopal station during all the months of the year 2007 is shown on figure ...diurnal ...

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Technological innovations at the onset of the Mid-Pleistocene Climate Transition in high-latitude East Asia

Technological innovations at the onset of the Mid-Pleistocene Climate Transition in high-latitude East Asia

... of high- and low-latitude ecosystems ...to high environmental diversity and variability, setting the stage for the expansion of populations into new climatic and biotic zones ...significant ...

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Empirical modeling of ITEC parameter at mid latitude

Empirical modeling of ITEC parameter at mid latitude

... low, mid and high latitude regions have been investigated by a number of researchers ...of variability in ionosphere are subject to a number of interconnecting drivers which can be basically ...

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Tropical and mid-latitude forcing of continental Antarctic temperatures

Tropical and mid-latitude forcing of continental Antarctic temperatures

... of variability are a major source of uncer- tainty in climate ...the mid-latitudes to high latitudes of the Southern Hemisphere (SH), which over the last few decades have experienced extreme and ...

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Spatial variability and detection levels for Chlorophyll-a estimates in high latitude lakes using Landsat imagery

Spatial variability and detection levels for Chlorophyll-a estimates in high latitude lakes using Landsat imagery

... the high variations of our model when applied to the calculation of chl a concentration in small ...of mid-latitude coastal environments (Bulgarelli et ...is high, or field surveys are ...

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Spatial Variability and Detection Levels for Chlorophyll-a Estimates in High Latitude Lakes Using Landsat Imagery

Spatial Variability and Detection Levels for Chlorophyll-a Estimates in High Latitude Lakes Using Landsat Imagery

... The adjacency effect, when quantified, could explain the high variations of our model when applied to the calculation of Chl concentration in small lakes. During this study, we came across the difficulty of ...

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High-latitude Southern Hemisphere fire history during the mid- to late Holocene (6000–750 BP)

High-latitude Southern Hemisphere fire history during the mid- to late Holocene (6000–750 BP)

... regional variability in eastern Australian fire activity (Mooney et ...the mid-Holocene, sites in the far south of southeastern Australia showed higher fire activ- ity due to a shift toward more ...

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Geomagnetic Disturbances and Its Impact on Ionospheric Critical Frequency (foF2) at High, Mid and Low Latitude Region

Geomagnetic Disturbances and Its Impact on Ionospheric Critical Frequency (foF2) at High, Mid and Low Latitude Region

... The continuous nuclear fusion process inside the sun, emit electromagnetic radiation. Earth’s magnetosphere, thermosphere and ionosphere are mostly affected by these electromagnetic radiations. Geomagnetic storms are ...

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Variability of MLT winds and waves over mid-latitude during the 2000/2001 and 2009/2010 winter stratospheric sudden warming

Variability of MLT winds and waves over mid-latitude during the 2000/2001 and 2009/2010 winter stratospheric sudden warming

... in mid-low-latitude MLT ...of high latitude stratospheric zonal wind at 10 hPa, 60 ◦ ...the mid-latitude MLT showed different behavior during the two SSW ...

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Dissipation of the energy imparted by mid-latitude storms in the Southern Ocean

Dissipation of the energy imparted by mid-latitude storms in the Southern Ocean

... and high- latitude storms with analytical ...to high-frequency winds are quan- tified and compared to those generated by eddy–topography interactions and dissipation of the balanced ...atmospheric ...

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PCA and vTEC climatology at midnight over mid-latitude regions

PCA and vTEC climatology at midnight over mid-latitude regions

... toward mid-high lati- tudes during summer is related to the MSNA, and it is weaker in the Asian region (Lin et ...wind variability, as described ...

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PCA and vTEC climatology at midnight over mid latitude regions

PCA and vTEC climatology at midnight over mid latitude regions

... toward mid-high lati- tudes during summer is related to the MSNA, and it is weaker in the Asian region (Lin et ...wind variability, as described ...

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On the influence of solar activity on the mid-latitude sporadic E layer

On the influence of solar activity on the mid-latitude sporadic E layer

... cycle variability and foEs (fbEs), the time series of foEsð365Þ 12LT and fbEsð365Þ 12LT were generated; the 365 day running mean in fact acts as a low pass band filter, which elim- inates the high ...

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Day to Day Variability of Ionospheric Parameters at Mid Latitude for Conjugate Locations

Day to Day Variability of Ionospheric Parameters at Mid Latitude for Conjugate Locations

... day-to-day variability in TEC is greater than in foF2 and exhibits its higher values during the nighttime hours Kouris et ...TEC variability have an average value over Europe (35o-60oN) circa ...TEC ...

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Climatology of GPS ionospheric scintillations over high and mid-latitude European regions

Climatology of GPS ionospheric scintillations over high and mid-latitude European regions

... ment located below 55 ◦ visible under both geomagnetic con- ditions. Both quiet and disturbed days plots of Fig. 7 show that the S 4 index enhances at noon and midnight in corre- spondence with the boundaries of the ...

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Thermal tolerance, climatic variability and latitude

Thermal tolerance, climatic variability and latitude

... Abraham Addo-Bediako 1 , Steven L. Chown 1* and Kevin J. Gaston 2 1 Department of Zoology and Entomology, University of Pretoria, Pretoria 0002, South Africa 2 Biodiversity and Macroecology Group, Department of Animal ...

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SESSION TWO: MID-LATITUDE AND TROPICAL CYCLONES

SESSION TWO: MID-LATITUDE AND TROPICAL CYCLONES

... Question 2: The South African Weather Service issued the following weather warnings for 26 June 2007. A mid-latitude cyclone was present. Gale-force south-westerly winds are expected between Plettenberg Bay ...

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The metastability of the mid-latitude Southern Hemisphere circulation

The metastability of the mid-latitude Southern Hemisphere circulation

... the mid-latitude sh atmosphere are characterised by the presence of regimes represented by the sam and high-low blocking ...identify mid-latitude ...

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