We analyze the auroral boundary corrected geomagnetic latitude provided by Auroral Boundary Index (ABI) database to estimate long-term changes of core origin in area enclosed this during 1983–2016. design a four-step filtering process minimize solar contribution temporal variation for northern and southern hemispheres. This includes activity effects, removal high-frequency signal, additional ~2...

Large-scale TEC perturbations/enhancements observed during the day sectors of major storm periods, 12– 13 February 2000, 23 September 1999, 29 October 2003, and 21 November 2003, were studied using a high resolution GPS network over Japan. TEC enhancements described in the present study have large magnitudes (≥25×1016 electrons/m2) compared to the quiet-time values and long periods (≥120 min). ...

Previous population dynamics data, generated for Amblyomma parvum Aragão and Amblyomma cajennense (Fabricius) in Argentina and southeastern Brazil, have indicated that these ticks complete 1 generation per year, with larvae predominating in autumn, nymphs in winter, and mostly adults during spring and summer. The present study reports population dynamics data for free-living Amblyomma spp. tick...

OBJECTIVE To address the inconsistency in the reported concordance of multiple sclerosis (MS) among twins by zygosity, sex, and latitude. METHODS Four hundred eighteen medically documented monozygotic (MZ) and 380 same-sex dizygotic (DZ) pairs were ascertained from 1980 to 1992 and followed. The study population was representative of twins with multiple sclerosis. Twins from Canada and adjace...

Short-term constituents of the secular variation, at inter-decadal (20–30 years) and sub-centennial (60–90 years) time scales, present in observatory data and main field models, are also found in the radial field evolution at core surface. The paper is focused on the sub-centennial constituent in the gufm1 model. Time–Longitude (t–λ) plots, covering the 400 years time span of the model, at vari...

In this study Mixed structural covariance, Path and Cultivation Value analyses and the CERES-Wheat crop model were used to evaluate vegetation and yield component variation affecting yield potential between different highlatitude (> 60° N lat.) and mid-European (< 60° N lat.) spring wheat (Triticum aestivum L.) genotypes currently cultivated in southern Finland. Path modeling results from this ...

Abstract. Carbon and water cycle dynamics of vegetation are controlled primarily by photosynthesis stomatal conductance (gs). Our goal is to improve the representation these key physiological processes within JULES land surface model, with a particular focus on refining temperature sensitivity photosynthesis, impacting modelled carbon, energy fluxes. We test (1) an implementation Farquhar et al...

[1] To elucidate the nature of permafrost in the shallow subsurface of Mars, we analyze jointly neutron albedo from the High Energy Neutron Detector (HEND) on the Mars Odyssey spacecraft and near-IR (1064-nm) surface reflectance from the Mars Orbiter Laser Altimeter (MOLA) on Mars Global Surveyor. The first dataset measures the content of hydrogen (in the form of water or hydroxyl) in the soil,...