We investigated the accuracy of operational medium-range ensemble forecasts for 29 Atlantic hurricanes between 2007 and 2019.Upper-level troughs with strong wind promoted northward movement of hurricanes over the mid-latitudes.For hurricanes with upper-level troughs, relatively large errors in the prediction of troughs result in large ensemble spre
Abstract We investigate the interplay between the enumerative geometry of Calabi-Yau fourfolds with fluxes and the modularity of elliptic genera in four-dimensional string theories.We argue that certain contributions to the elliptic genus are given by derivatives of modular or quasi-modular forms, which may encode BPS invariants of Calabi-Yau or no
Abstract NLO evolution of the Jalilian-Marian-Iancu-McLerran-Weigert-Leonidov-Kovner (JIMWLK) equation with massless quarks was derived a few years ago.We make a step further to Spacers compute the evolution kernels focusing on the effects due to finite quark masses.To this goal, the light-cone wave function of a fast moving dilute hadronic project
Nerine Herbert, family Amaryllidaceae, is a genus of about 30 species that are native to South Africa, Botswana, Lesotho, Namibia, and Swatini (formerly known as Swaziland).Species of Nerine are autumn-flowering, perennial, bulbous plants, TABLE which inhabit areas with summer rainfall and cool, dry winters.Most Nerine species have been cultivated