ABSTRACT

Cloud-based services introduce a paradigm shift in how users access, process and analyse Big Earth data. A key challenge is to align the current state of how users access, process and analyse the data with trends and roadmaps large data organisations layout. In addition, due to the increased availability of open data, a more diverse user base wants to take advantage of Earth science data leading to new user requirements. We run a web-based survey among Big Earth data users to better understand the motivation to migrate to cloud-based services as well as the challenges and opportunities that might arise. Results show an overall interest in moving to cloud-based services but air an insufficient literacy in cloud systems and a lack of trust due to security concerns and opacity of emerging costs. These gaps demand efforts on three levels. First, cloud services shall be targeted at intermediate users instead of policy- and decision-makers and over-engineered systems with a high level of abstraction should be avoided. Second, more substantial capacity-building efforts are required to decrease the existing gap in cloud skills and uptake. Third, a cloud certification mechanism could help in building up overall trust in cloud-based services.

摘要

基于云的服务在用户访问、处理和分析大地球数据的方式方面引入了范式转变。一个关键的挑战是将用户访问、处理和分析数据的当前状态与趋势和路线图大数据组织布局保持一致。此外，由于开放数据的可用性增加，更加多样化的用户群希望利用导致新用户需求的地球科学数据。我们在大地球数据用户中进行了一项基于网络的调查，以更好地了解迁移到基于云的服务的动机以及可能出现的挑战和机遇。结果显示人们对迁移到基于云的服务总体感兴趣，但由于安全问题和新兴成本的不透明，人们对云系统的素养不足以及缺乏信任。这些差距需要在三个层面上做出努力。第一的，云服务应面向中间用户，而不是政策制定者和决策者，应避免高度抽象的过度设计的系统。其次，需要进行更大量的能力建设工作，以缩小现有的云技术和应用差距。第三，云认证机制有助于建立对基于云的服务的整体信任。