EarthCube Building Blocks: Specifying and Implementing ODSIP, A Data-Service Invocation Protocol

此EarthCube构建块项目旨在构建ODSIP(开放数据服务调用协议)，以在客户端/服务器库中提供一系列开放规范。其核心思想是，EarthCube的关键部分可以有效地围绕客户端和服务器构建，这些客户端和服务器采用通用的概念丰富的协议进行数据采集。这些组件将被开发为1)ODSIP的开放规范(作为DAP4的扩展)；2)在开放源代码库中的ODSIP的参考实现；以及3)客户端-服务器演示，展示ODSIP如何支持三个选定的地球科学场景，每个演示将由一名地球科学家指导。这三种情景是：1)非矩形网格模型输出的加速可视化/分析(在北卡罗来纳州沿海上空)；2)区域效用气候预报的动态缩小尺度(在夏威夷上空)；3)卫星图像的面向特征的检索(侧重于卫星海面温度锋面)。ODSIP的更广泛影响包括使地球科学数据的使用民主化，特别是三种地球科学情景中的两种将如何使应急管理人员受益，并向决策者通报特定区域的气候变化风险。更广泛的影响还包括加强整个地球立方体社区的共识。

This EarthCube Building Blocks project intends to build ODSIP (Open Data Services Invocation Protocol) to provide a range of open specification in client/server libraries. The core idea is that key parts of EarthCube can be built effectively around clients and servers that employ a common and conceptually rich protocols for data acquisition. The components will be developed 1) an open specification for ODSIP (as a DAP4 extension); 2) a reference implementation of ODSIP in open-source libraries; and3) client-server demonstrations that show how ODSIP supports three selected geoscience scenarios, each demonstration to be guided by a geoscientist. The three scenarios are: 1) accelerated visualization/analysis of model outputs on non-rectangularmeshes (over coastal North Carolina); 2) dynamic downscaling of climate predictions for regional utility (over Hawaii); and 3) feature-oriented retrievals of satellite imagery (focusing on satellite-derived sea-surface-temperature fronts).The broader implications of ODSIP include democratizing the use of geoscience data, illustrated in particular by how two of the three geoscience scenarios will benefit emergency managers and inform decision makers about region-specific risks of climate change. The broader implications also include strengthening common understandings across the EarthCube community.