CEO:P--COMET: Coast-to-Mountain Environmental Transect

该项目的目标是开发一个实用的网络基础设施原型，以促进研究包括气候变异性在内的多种环境因素如何影响从加州沿海到内华达州山脉顶峰的海拔梯度沿着的主要生态系统。了解加州上升流系统的强度与陆地生态系统碳交换之间的耦合是核心科学问题。其他的科学目标是更好地了解大气灰尘被输送到太浩湖的方式，并检查上升流过程减缓的沿海地区的碳通量。在地理环境中，有各种各样的生态系统，据信对气候变化很敏感。回答科学问题所需的数据的分散性和复杂性推动了最先进的网络基础设施的发展，从而促进了科学研究。这一网络基础设施将基于对分布式和各种数据收集和数据流的访问、数据的语义登记、模型和分析工具、语义感知数据查询机制以及先进科学工作流程的编排系统的整合。将通过一个网络门户提供对这一网络基础设施的访问。

The goal of this project is to develop a practical cyberinfrastructure prototype to facilitate the study of the way in which multiple environmental factors, including climatic variability, affect major ecosystems along an elevation gradient from coastal California to the summit of the Sierra Nevada. An understanding of the coupling between the strength of the California upwelling system and terrestrial ecosystem carbon exchange is the central scientific question. Additional scientific goals are to better understand the way in which atmospheric dust is transported to Lake Tahoe and an examination of carbon flux in the coastal zone as moderated by upwelling processes. The geographic context is one in which there is a diversity of ecosystems that are believed to be sensitive to climatological changes. The dispersion and complexity of the data needed to answer the scientific questions motivate the development of a state-of-the-art cyberinfrastructure so facilitate the scientific research. This cyberinfrastructure will be based around the integration of access to distributed and varied data collections and data streams, semantic registration of data, models and analysis tools, semantically-aware data query mechanisms, and an orchestration system for advanced scientific workflows. Access to this cyberinfrastructure will be provided through a web-based portal.