FInite eLement Adaptive grid Modelling of Ecosystems and Nutrient Transport

生态系统和养分输送的有限元自适应网格建模

基本信息

批准号：
NE/F00270X/1
负责人：
Meric Srokosz
金额：
$ 24.43万
依托单位：
NATIONAL OCEANOGRAPHY CENTRE
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2008
资助国家：
英国
起止时间：
2008 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=NE%2FF00270X%2F1
关键词：
FInite eLement Adaptive grid Modelling

项目摘要

Phytoplankton (microscopic plants) grow in the surface waters of the ocean and, like plants on land, use up carbon dioxide, which is absorbed into the ocean from the atmosphere. The growth of the phytoplankton depends on sunlight and on their supply of nutrients (food). This supply in turn is influenced by the ocean eddies and currents, and vertical motions that bring the nutrients into the surface waters from deeper in the ocean. Just how these mechanisms operate is not well understood in some parts of the ocean (the subtropics). Therefore, computer models of the biology (ecosystem) and the physics (eddies, currents, vertical motions) are used to try to help our understanding. Unfortunately, despite many advances in computing, limitations on computer power mean that it is not easy to model large areas of the ocean, such as the North Atlantic, while at the same time being able to capture all that is happening at much smaller scales (down to one kilometre or less). In this research project we will develop a new model that can represent what is happening accurately at both the large and small scales. The model will work by continuously adapting how it carries out calculations, in order to resolve the spatial scales required to accurately simulate the biology and physics at any location in the ocean. This will make best use of the available computer power. It will allow us to develop a better understanding of how the ocean physics affects the biology. This will contribute to a better understanding of the part the oceans play in the global carbon cycle and so in climate change.

浮游植物（微观植物）生长在海洋的地表水中，就像陆地上的植物一样，用二氧化碳从大气中吸收到海洋中。浮游植物的生长取决于阳光及其养分供应（食物）。反过来，这种供应受海洋涡流和电流的影响，以及将养分从海洋深处带入地表水进入地表水的垂直运动。这些机制的运作方式在海洋的某些地区（亚热带）尚未得到很好的了解。因此，使用生物学的计算机模型（生态系统）和物理学（涡流，电流，垂直运动）来帮助我们的理解。不幸的是，尽管计算方面有很多进步，但对计算机功率的限制意味着对海洋大区域（例如北大西洋）进行建模并不容易，而同时可以捕获所有正在较小的尺度（降至一公里或更少）的情况。在该研究项目中，我们将开发一个新模型，可以在大小规模上准确地表示发生的事情。该模型将通过不断调整其进行计算的方式来工作，以解决准确模拟海洋中任何位置的生物学和物理学所需的空间尺度。这将充分利用可用的计算机电源。这将使我们能够更好地了解海洋物理学如何影响生物学。这将有助于更好地了解海洋在全球碳循环中发挥作用以及气候变化中的作用。