Article title	Pages
Full issue	401-555
Meteorology
T.E. Simakina, S.V. Kryukova. Spatio-temporal distribution of surface ozone in Saint Petersburg	407-420
E.N. Yakovleva, N.N. Yashalova, V.S. Vasil’tsov. Analysis of climate security of economic activities in the Russian Federation	421-436
Hydrology
E.V. Davydenko, E.V. Gaidukova, M.S. Dregval. Features of the level regime of the Kola peninsula lakes	437-445
A.E. Sumachev, L.S. Banshchikova. Ice regime of the Pechora river and features of forecasting the highest ice drift level	446-459
A.N. Chernyshev, V.O. Sergeeva, A.K. Kotova, S.N. Nikitina, A.V. Babin, E.Ju. Voyakina, A.B. Stepanova. Limnological parameters features of “Lake Leschovoye — Leschovyi bay” system in maximum water heating period (Valaam archipelago, lake Ladoga)	460-479
Oceanology
V.G. Gnevyshev, T.V. Belonenko The Rossby paradox and its solution	480-493
A.V. Kileso, Zh.I. Stont. Some aspects of the water level variability of the Curonian Lagoon (South-Eastern Baltic) under various synoptic situations	494-506
Ecology
D.A. Lebedev, A.A. Nikanorova. Separate waste accumulation and collection: prospects and opportunities	507-520
O. Lobchuk, A. Kileso Spatial distribution and sources of anthropogenic marine litter on the sea shore of the Kaliningrad region	521-533
Social science and humanities
E.V. Nesmeyanov On the mirage theory of the Titanic disaster	534-546
Chronicle	547-555