Córdoba Diego, Fefferman Charles, Rodrigo José Luis
Consejo Superior de Investigaciones Científicas, Serrano 123, 28006 Madrid, Spain.
Proc Natl Acad Sci U S A. 2004 Mar 2;101(9):2687-91. doi: 10.1073/pnas.0308154101. Epub 2004 Feb 20.
We investigate the evolution of "almost sharp" fronts for the surface quasi-geostrophic equation. This equation was originally introduced in the geophysical context to investigate the formation and evolution of fronts, i.e., discontinuities between masses of hot and cold air. These almost sharp fronts are weak solutions of quasi-geostrophic with large gradient. We relate their evolution to the evolution of sharp fronts.
我们研究了表面准地转方程“几乎尖锐”锋面的演化。该方程最初是在地球物理背景下引入的,用于研究锋面的形成和演化,即冷热空气团之间的不连续面。这些几乎尖锐的锋面是具有大梯度的准地转方程的弱解。我们将它们的演化与尖锐锋面的演化联系起来。