Papers

Univariate statistical analysis of environmental (compositional) data:Problems and possibilities

Peter Filzmoser, Karel Hron, Clemens Reimann Received 8 May 2009 Received in revised form 24 July 2009 Accepted 5 August 200 abstract For almost 30 years it has been known that compositional (closed) data have special geometrical properties.In environmental sciences, where the concentration of chemical elements in different sample materials isinvestigated, almost all datasets are …

Has global warming already arrived?

Elsevier Journal of Atmospheric and Solar-Terrestrial Physics Volume 182, January 2019, Pages 31-38 C.A.Varotsos, M.N.Efstathiou https://doi.org/10.1016/j.jastp.2018.10.020 Highlights The global warming during 1978–2018 was not more enhanced at high latitudes near the surface. The intrinsic properties of the lower stratospheric temperature are not related to those in the troposphere. The results obtained do not reveal the …