US-GLOBEC: Satellite-Derived Estimates of Mixing Across Sea Surface Temperature Fronts in the Georges Bank Region

乔治浅滩是位于马萨诸塞州科德角东南部的一个大型海底浅滩，将缅因湾与北大西洋西部分开。在热致浮力输入与潮致浮力去除相等的点位上形成潮汐混合锋（TNF），将垂直混合良好的水体与分层水体分开。Georges Bank的TMF和附近的陆架/斜坡锋（SSF）的位置可以通过海表温度锋（SST）来确定，现在可以使用自动化方法从卫星获得的海表温度图像中绘制海表温度锋。作为Georges Bank GLOBEC第三阶段项目的一部分，我们将利用每日无云AVHRR卫星图像，实时和在互联网上向研究船和合作者提供覆盖Georges Bank、缅因湾、西苏格兰大陆架和附近斜坡地区的海温锋面位置。我们将保留一个非常大的数据档案，其中包含所有原始的AVHRR海温图像，这些图像是近实时获取和处理的，以及相应的海温正面位置图像和数据，这些图像和数据可供研究船只和合作调查人员通过高速拨入电话线和万维网访问。

Georges Bank is a large submarine bank located southeast of Cape Cod, Massachusetts, separating the Gulf of Maine from the western North Atlantic. A tidal mixing front (TNF) forms along the loci of points where the thermally-induced buoyancy input is equal to the tidal mixing-induced buoyancy removal, separating vertically well-mixed waters from stratified waters. Locations of the Georges Bank TMF and nearby shelf/slope front (SSF) can be determined using sea surface temperature (SST) fronts, which can now be mapped from satellite derived SST images using automated methods. As part of the Georges Bank GLOBEC Phase III project we will provide SST frontal positions to research vessels and collaborators, in real-time and on the World Wide Web, using daily cloud-cleared AVHRR satellite images which cover Georges Bank, the Gulf of Maine, the western Scotian shelf and nearby slope regions. We will maintain a very large data archive, containing all raw AVHRR SST images, acquired and processed in near real-time, together with corresponding SST frontal location images and data, which is accessible to research vessels and collaborating investigators over high-speed dial-in telephone lines and the World Wide Web.