• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>OCEANS 2009, MTS/IEEE Biloxi - Marine Technology for Our Future: Global and Local Challenges >Using coupled models to study the effects of river discharge on biogeochemical cycling and hypoxia in the northern Gulf Of Mexico
【24h】

Using coupled models to study the effects of river discharge on biogeochemical cycling and hypoxia in the northern Gulf Of Mexico

机译：使用耦合模型研究河流排放对墨西哥湾北部生物地球化学循环和缺氧的影响

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We describe emerging capabilities to understand physical processes and biogeochemical cycles in coastal waters through the use of satellites, numerical models, and ship observations. Emerging capabilities provide significantly improved ability to model ecological systems and the impact of environmental management actions on them. The complex interaction of physical and biogeochemical processes responsible for hypoxic events requires an integrated approach to research, monitoring, and modeling in order to fully define the processes leading to hypoxia. Our effort characterizes the carbon cycle associated with river plumes and the export of organic matter and nutrients from coastal Louisiana wetlands and embayments in a spatially and temporally intensive manner previously not possible. Riverine nutrients clearly affect ecosystems in the northern Gulf of Mexico as evidenced in the occurrence of regional hypoxia events. Less known and largely unquantified is the export of organic matter and nutrients from the large areas of disappearing coastal wetlands and large embayments adjacent to the Louisiana Continental Shelf. This project provides new methods to track the river plume along the shelf and to estimate the rate of export of suspended inorganic and organic particulate matter and dissolved organic matter from coastal habitats of south Louisiana.
机译：我们描述了通过使用卫星，数值模型和船舶观测来了解沿海水域的物理过程和生物地球化学循环的新兴能力。新兴功能大大提高了对生态系统进行建模的能力，以及环境管理措施对其产生的影响。导致缺氧事件的物理和生物地球化学过程之间的复杂相互作用需要一种综合的方法来进行研究，监测和建模，以便充分定义导致缺氧的过程。我们的工作表征了与河羽相关的碳循环以及路易斯安那州沿海湿地和隔离带以时空密集的方式输出以前无法实现的有机物质和养分的出口。河流缺氧的养分明显影响了墨西哥湾北部的生态系统，这在区域缺氧事件的发生中得到了证明。鲜为人知且基本上未量化的是从路易斯安那州陆架附近的消失的沿海湿地和大型隔离区的大面积区域中出口的有机物和营养物质。该项目提供了新的方法来跟踪沿架子的河羽流，并估计悬浮的无机和有机颗粒物以及溶解的有机物从路易斯安那州南部沿海生境的出口速度。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号