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首页> 外文会议>Conference on Earth Observing Systems VII, Jul 7-10, 2002, Seattle, USA >Operating the EOSDIS at the Land Processes DAAC Managing Expectations, Requirements, and Performance Across Agencies, Missions, Instruments, Systems, and User Communities
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Operating the EOSDIS at the Land Processes DAAC Managing Expectations, Requirements, and Performance Across Agencies, Missions, Instruments, Systems, and User Communities

机译：在陆地流程DAAC上运行EOSDIS来管理机构，任务，仪器，系统和用户社区的期望，要求和绩效

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NASA developed the Earth Observing System (EOS) during the 1990's. At the Land Processes Distributed Active Archive Center (LP DAAC), located at the USGS EROS Data Center, the EOS Data and Information System (EOSDIS) is required to support heritage missions as well as Landsat 7, Terra, and Aqua. The original system concept of the early 1990's changed as each community had its say - first the managers, then engineers, scientists, developers, operators, and then finally the general public. The systems at the LP DAAC - particularly the largest single system, the EOSDIS Core System (ECS) - are changing as experience accumulates, technology changes, and each user group gains influence. The LP DAAC has adapted as contingencies were planned for, requirements and therefore plans were modified, and expectations changed faster than requirements could hope to be satisfied. Although not responsible for Quality Assurance of the science data, the LP DAAC works to ensure the data are accessible and useable by influencing systems, capabilities, and data formats where possible, and providing tools and user support as necessary. While supporting multiple missions and instruments, the LP DAAC also works with and learns from multiple management and oversight group as they review mission requirements, system capabilities, and the overall operation of the LP DAAC. Stakeholders, including the Land Science community, are consulted regularly to ensure that the LP DAAC remains cognizant and responsive to the evolving needs of the user community. Today, the systems do not look or function as originally planned, but they do work, and they allow customers to search and order of an impressive amount of diverse data.
机译：美国宇航局在1990年代开发了地球观测系统（EOS）。在位于USGS EROS数据中心的“土地过程分布式活动存档中心（LP DAAC）”中，需要EOS数据和信息系统（EOSDIS）支持遗产任务以及Landsat 7，Terra和Aqua。 1990年代初期的原始系统概念随着每个社区的发言而发生了变化-首先是管理者，然后是工程师，科学家，开发人员，操作员，最后是公众。 LP DAAC的系统-尤其是最大的单一系统EOSDIS Core System（ECS）-随着经验的积累，技术的变化以及每个用户群体的影响力而不断变化。 LP DAAC已进行了调整，以适应计划中的突发事件，需求，因此对计划进行了修改，并且期望的变化速度快于需求所希望满足的速度。尽管不负责科学数据的质量保证，但LP DAAC努力通过在可能的情况下影响系统，功能和数据格式，并在必要时提供工具和用户支持，来确保数据可访问和可用。 LP DAAC在支持多个任务和工具的同时，还与多个管理和监督小组合作并从中学习，他们审查了任务要求，系统功能以及LP DAAC的整体操作。定期与利益相关者（包括土地科学社区）进行磋商，以确保LP DAAC始终对用户社区的不断发展的需求保持认知和响应。如今，这些系统的外观或功能并未达到最初的计划，但它们可以正常工作，并且它们使客户可以搜索和订购大量的各种数据。

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