U.S. GLOBEC Northeast Pacific Coordinating Office

美国GLOBEC东北太平洋协调办公室

• 批准号: 0002047
• 金额: $ 126万
• 依托单位: Oregon State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-04-01 至 2006-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0002047&HistoricalAwards=false
• 关键词: U.S.; GLOBEC; Northeast; Pacific; Coordinating

GLOBEC NEP: Satellite?Observed Ocean Climate Variabili1yThe PIs will extend in time and expand in scope the satellite data development and satellite-based analyses of ocean climate variability in the Northeast Pacific (NEP), begun during the GLOBEC Pilot Project phase (1997 - 00). The overall scientific problem is to characterize and quantify the dominant modes of variability in the NEP as embodied by satellite measurements of surface transports, temperature and chlorophyll patterns. Our analyses address multiple spatial and temporal scales using merged satellite data products over GLOBEC target study regions in both the California Current (CCS) and the coastal Gulf of Alaska (CGOA).GLOBEC NEP field studies require both spatial and temporal context. The primary goal of this project is to quantify the degree of seasonal and interannual variability in small scale and mesoscale circulation patterns in each of the process study sites, and to relate changes in this variability to the seasonal and interannual changes in the strength of forcing by local winds and basin scale circulation. This goal will be accomplished through a systematic analysis of spatial temporal scales utilizing satellite measurements. The PIs will define and quantify a) small event-scale coastal features such as fronts, eddies and convergences (50 m ? 100 km). These features are thought to be critical to local success/ survival of GLOBEC target species, b) mesoscale circulation / seasonal variability over the shelf, upwelling fronts, coastal jets, buoyant plumes and eddies (10 km ? 500 km) - these also affect transport and retention of populations; and c) forcing and processes at basin and interannual scales (100 km ? 10,000 km). A second, related goal is to quantify changes in the timing and strength of seasonal transitions in both study regions. Specific objectives of the project are divided into two aspects of satellite oceanography, with which the three PIs have extensive experience: 1) Acquire, process, subset, QC, and archive satellite data in the NEP region at multiple scales and make these data electronically available to others in the program; 2) analyze these data, in conjunction with ancillary data, to address GLOBEC research goals at basin- meso- and nearshore scales. The core data sets are altimeter fields, NOAA AVHRR and NASA SeaWiFS data at both l km and 4 km resolution and synthetic aperture radar (SAR) imagery. These are supplemented with model and buoy winds, tide gauge sea levels and in situ data. Close collaboration with investigators carrying out field measurements will link scales and patterns determined in the satellite data analyses to 3D in situ processes.

GLOBEC NEP：卫星？观测到的海洋气候变率1 PIs将延长在GLOBEC试验项目阶段（1997 - 2000年）开始的东北太平洋海洋气候变率卫星数据开发和卫星分析的时间和范围。 总的科学问题是确定和量化NEP中的主要变化模式，如卫星测量的表面传输、温度和叶绿素模式所体现的。 我们的分析解决多个空间和时间尺度使用合并的卫星数据产品在GLOBEC目标研究区域在加州电流（CCS）和阿拉斯加湾（CGOA）。GLOBEC NEP现场研究需要空间和时间的背景。 该项目的主要目标是量化每个过程研究地点的小尺度和中尺度环流模式的季节和年际变化程度，并将这种变化与当地风和流域尺度环流强迫强度的季节和年际变化联系起来。 这一目标将通过利用卫星测量对时空尺度进行系统分析来实现。 PI将定义和量化a）小事件规模的沿海特征，如锋面、漩涡和收敛（50米？100公里）。 这些特征被认为是关键的地方成功/生存的GLOBEC目标物种，B）中尺度环流/季节性变化的货架上，上升流锋，沿海急流，浮力羽流和涡流（10公里？500公里）-这些也影响人口的运输和保留;和c）强迫和过程在流域和年际尺度（100公里？10，000公里）。 第二个相关目标是量化两个研究区域季节转换的时间和强度变化。该项目的具体目标分为两个方面的卫星海洋学，这三个PI在这方面具有丰富的经验：1）获取，处理，子集，质量控制和存档NEP区域的卫星数据在多个尺度上，并将这些数据以电子方式提供给计划中的其他人; 2）结合辅助数据分析这些数据，以解决流域-中-近岸尺度的GLOBEC研究目标。 核心数据集是高度计场、诺阿高级甚高分辨率辐射计和美国航天局SeaWiFS的1公里和4公里分辨率数据以及合成孔径雷达图像。 这些数据还辅以模型和浮标风、验潮仪海平面和现场数据。 与进行实地测量的调查人员密切合作，将把卫星数据分析中确定的尺度和模式与三维现场过程联系起来。