........................................................................... 3 SVENSK SAMMANFATTNING .................................................. 5 LIST OF PAPERS ..................................................................... 7 ACKNOWLEDGEMENTS ......................................................... 9 INTRODUCTION .................................................................. ...

[1] Two end-member hypotheses have been proposed to account for the emplacement and distribution of ice in the near-subsurface of Mars at mid to high latitudes during recent spin-axis/orbital variation-induced climate change. In the first, diffusion of atmospheric water vapor into and out of a porous regolith forms ice-cemented soils whose latitudinal stability migrates as a function of orbital...

Abstract The statistical study of the coronal mass ejections (CMEs) is a hot topic in solar physics. To further reveal temporal and spatial behaviors CMEs at different latitudes heights, we analyzed correlation phase relationships between occurrence rate CMEs, brightness index (CBI), 10.7 cm radio flux (F10.7). We found that correlates with CBI relatively stronger high (≥60°) than low (≤50°). A...

theory subsequently developed. His torch is carried on by an enthusiastic group of followers, and his efforts have ensured that the topic of regular polytopes still has plenty of life in it.Coxeter Groups

BACKGROUND Large-scale patterns or trends in species diversity have long interested ecologists. The classic pattern is for diversity (e.g., species richness) to decrease with increasing latitude. Taxonomic distinctness is a diversity measure based on the relatedness of the species within a sample. Here we examined patterns of taxonomic distinctness in relation to latitude (ca. 32-48 degrees N) ...

[1] The TRMM Multi-satellite Precipitation Analysis (TMPA) system underwent a crucial upgrade in early 2009 to include a climatological calibration algorithm (CCA) to its realtime product 3B42RT, and this algorithm will continue to be applied in the future Global Precipitation Measurement era constellation precipitation products. In this study, efforts are focused on the comparison and validati...

A comprehensive set of stratospheric balloon and aircraft samples was analyzed for the position-dependent isotopic composition of nitrous oxide (N2O). Results for a total of 220 samples from between 1987 and 2003 are presented, nearly tripling the number of mass-spectrometric N2O isotope measurements in the stratosphere published to date. Cryogenic balloon samples were obtained at polar (Kiruna...

The interplanetary and magnetospheric phenomena time-coincident with intense geomagnetically induced current (GIC) > 10 A 30 events during 21 years (1999 through 2019) at the Mäntsälä, Finland (57.9° magnetic latitude) gas pipeline have been studied. Although forward shocks substorms are predominant causes of GICs, some newly discovered geoeffective features are: solar wind plasma parcel (PP...