US-GLOBEC: NWA Georges Bank: :Impacts of Climate and Basin-Scale Variability on Seeding and Production of Calanus finmarchicus in the Gulf of Maine/Georges Bank Region

US-GLOBEC：NWA 乔治滩：：气候和流域尺度变异对缅因湾/乔治滩地区 Calanus finmarchicus 播种和生产的影响

• 批准号: 0535379
• 负责人: Avijit Gangopadhyay
• 金额: $ 21.31万
• 依托单位: University of Massachusetts, Dartmouth
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-01-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0535379&HistoricalAwards=false
• 关键词: US; GLOBEC; NWA; Georges; Bank

The processes linking the ecosystems of Georges Bank, Scotian Shelf, Slope Sea and Gulf of Main to climate variability-induced, basin-scale circulation changes caused by large-scale atmospheric effects such as the North Atlantic Oscillation (NAO) appear to occur over both multi-decadal and interannual time scales. This project aims to elucidate how these multi-year changes in circulation within the western North Atlantic basin affect C. finmarchicus, specifically its transport onto Georges Bank. This will be accomplished via a combination of numerical model simulations and observational data.Primary tasks include: (1) Setting up and running an individual based model (IBM) for the Northwest Atlantic, using physical fields corresponding to the high-NAO (1980-1993) and low-NAO (1962-1971) periods obtained from an ongoing eddy-resolving North Atlantic simulation to understand multidecadal variability of Calanus finmarchicus seeding and production in this region; (2) Performing eddy-resolving basin-scale model simulations during 1988-1999 starting from already existing high-NAO simulations (from an ongoing NASA project) and run the IBM to study the interannual variability of C. finmarchicus seeding and production in this region; (3) Analyzing long-term in-situ physical and biological datasets and satellite-derived sea surface temperature (SST) along with in-situ physical, biological, and chemical data collected during the GLOBEC core-measurement period (1995-1999) to validate the basin-scale physical and biological fields and develop a broader understanding of C. finmarchicus seeding and production; (4) Generating four-dimensional high-resolution (5-km) physical fields using basin-scale fields and available data during 1993-1999, and running a series of IBM simulations at higher resolution in order to address questions relating ecosystem variability in the study regions to the large-scale fluctuations of the NAO.Within the GLOBEC synthesis effort, this study will enhance the scientific understanding of large-scale climatic and basin-scale forcing on the regional ecosystem of the NWA/GB region. Two graduate students will be trained. Results will be disseminated in scientific publications and presentations at national conferences while model output and several value-added fields will be made available via a website linked to the GLOBEC Georges Bank website.

连接乔治银行，斯科省架子，坡海和海湾的生态系统的过程，由气候变化引起的，盆地规模的循环变化是由大规模大气效应引起的，例如北大西洋振荡（NAO），例如在多年和间年间的时间范围内都发生了。该项目旨在阐明北大西洋盆地西部的这些多年流通变化如何影响Finmarchicus，特别是其运输到Georges Bank。这将通过数字模型模拟和观察数据的结合来实现。主要任务包括：（1）使用与High-nao（1980-1993）和低Nao（1962-1971）相对应了解的北大西洋（1980-1993）的物理领域，为西北大西洋建立基于单个的模型（IBM）（IBM），从该地区的Calanus Finmarchicus播种和生产； （2）从已经存在的高NOO模拟开始（来自正在进行的NASA项目）并运行IBM来研究该区域的Finmarchicus播种和生产的年度变异性，从而进行1988 - 1999年期间进行涡流盆地模型模拟。 (3) Analyzing long-term in-situ physical and biological datasets and satellite-derived sea surface temperature (SST) along with in-situ physical, biological, and chemical data collected during the GLOBEC core-measurement period (1995-1999) to validate the basin-scale physical and biological fields and develop a broader understanding of C. finmarchicus seeding and production; （4）在1993年至1999年期间使用盆地规模领域和可用数据生成四维高分辨率（5公里）物理领域在NWA/GB地区的区域生态系统上强迫盆地规模。两名研究生将接受培训。结果将在国家会议上的科学出版物和演讲中传播，而模型输出和几个增值领域将通过与Globec Georges Bank网站相关的网站提供。