Basin dependencies of tropical cyclone genesis environment and possible future changes revealed by machine learning methods.

Tropical cyclone (TC) genesis mechanisms remain debated, complicating predictions of climate change impacts. This study uses principal-component analysis (PCA), confidence ellipses, and correlation circles to analyze TC genesis environments across ocean basins. Results show that TC genesis is basin dependent, except in the North Atlantic (NA), where absolute vorticity primarily drives differences in genesis locations.

[μ-6,9-Bis(carboxylatomethyl)-3,12-bis(car-boxymethyl)-3,6,9,12-tetraaza-tetradecanedioato]bis-[aqua-cobalt(II)] tetra-hydrate.

The binuclear title complex, [Co(2)(C(18)H(26)N(4)O(12))(H(2)O)(2)]·4H(2)O, lies about a centre of inversion, the Co(II) atom being coordinated in a distorted octa-hedral arrangement defined by one water mol-ecule and N(2)O(3) donors derived from one end of a 6,9-bis(carboxylatomethyl)-3,12-bis(car-boxy-methyl)-3,6,9,12-tetraaza-tetradecanedioate (H(2)TTHA(4-)) tetra-anion. In the crystal, numerous O-H⋯O hydrogen bonds link the mol-ecules into a three-dimensional network.