Over the past few decades, geoportals have been considered as the key technological solutions for easy access to Earth observation (EO) products, and the implementation of spatial data infrastructure (SDI). However, less attention has been paid to developing an efficient model for crowdsourcing EO products through geoportals. To this end, a new model called the “Open Community-Based Crowdsourcing Geoportal for Earth Observation Products” (OCCGEOP) was proposed in this study. The model was developed based on the concepts of volunteered geographic information (VGI) and community-based geoportals using the latest open technological solutions. The key contribution lies in the conceptualization of the frameworks for automated publishing of standard map services such as the Web Map Service (WMS) and the Web Coverage Service (WCS) from heterogeneous EO products prepared by volunteers as well as the communication portion to request voluntary publication of the map services and giving feedback for quality assessment and assurance. To evaluate the feasibility and performance of the proposed model, a prototype implementation was carried out by conducting a pilot study in Iran. The results showed that the OCCGEOP is compatible with the priorities of the new generations of geoportals, having some unique features and promising performance.

中文翻译：

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用于地球观测产品的基于社区的开放式众包地理门户：模型设计和原型实现

在过去的几十年中，地理门户已被视为轻松访问地球观测（EO）产品和实施空间数据基础架构（SDI）的关键技术解决方案。但是，很少有人关注通过地理门户开发有效的EO产品众包模型。为此，在本研究中提出了一种新模型，即“面向地球观察产品的基于开放社区的众包地理门户”（OCCGEOP）。该模型是根据自愿地理信息（VGI）和基于社区的地理门户网站的概念，使用最新的开放技术解决方案开发的。关键贡献在于自动发布标准地图服务框架的概念，这些标准地图服务来自志愿者准备的异构EO产品的Web Map Service（WMS）和Web Coverage Service（WCS）以及要求自愿提供的通信部分发布地图服务，并提供反馈以进行质量评估和保证。为了评估该模型的可行性和性能，通过在伊朗进行的一项试点研究进行了原型实施。结果表明，OCCGEOP与新一代地理门户的优先级兼容，具有一些独特的功能和令人鼓舞的性能。