Ensemble of HYCOM simulations of the Gulf of Mexico to study uncertainties stemming from uncertain initial conditions using the Polynomial Chaos approach

The 49 simulations forming the ensemble have been performed using the HYbrid Coordinate Ocean Model (HYCOM's web page can be found at http://www.hycom.org). The ensemble members differ in their initial conditions, which are perturbed to specifically isolate the uncertain signature of a cyclonic frontal eddy along the northern edge of the Loop Current. The Loop Current is the dominant dynamical feature in the Gulf of Mexico, and frontal eddies are known to affect the Loop Current pathway, and to play a role in the shedding of anticyclonic Loop Current Eddies. The data uploaded contain the daily model state for each member and cover the period May 1 to June 30, 2010.

构成该集合的49次模拟均采用混合坐标海洋模式（HYbrid Coordinate Ocean Model，HYCOM，其官方网页可访问于http://www.hycom.org）完成。该集合的各成员初始条件存在差异，通过对初始条件施加扰动，可专门分离出沿环海流（Loop Current）北侧边缘的气旋型锋面涡旋的不确定性特征。环海流是墨西哥湾最主要的动力特征，而锋面涡旋会影响环海流的路径，并在反气旋型环海流涡旋的脱落过程中发挥作用。本次上传的数据集包含各成员的每日模式状态数据，时间覆盖2010年5月1日至6月30日。