Planning an event-based monitoring campaign on the regional scale is challenging, e.g. the timing and location of monitoring visits can dramatically impact monitoring efficacy and depends on the optimal environmental conditions required by the measurement parameters and the overarching monitoring goal. Therefore we developed a generic campaign planning approach utilizing interactive visualization methods and implemented this approach into the component-based web tool called Tocap: Tool for Campaign Planning. As a case study, we determine the most suitable time and location for event-driven, ad-hoc monitoring in hydrology using soil moisture measurements as our target variable. Our approach supports: (1) data acquisition from various digital data sources, (2) identification of the most suitable locations for measurements, (3) identification of the most suitable time for measurements at the selected locations, and (4) planning an optimized monitoring route.

在区域范围内规划基于事件的监测活动具有挑战性，例如监测访问的时间和地点会极大地影响监测效率，并取决于测量参数和总体监测目标所需的最佳环境条件。因此，我们利用交互式可视化方法开发了一种通用的活动策划方法，并将这种方法实施到名为 Tocap：活动策划工具的基于组件的 Web 工具中。作为一个案例研究，我们使用土壤湿度测量作为目标变量，确定最适合水文事件驱动的临时监测的时间和地点。我们的方法支持：（1）从各种数字数据源获取数据，（2）确定最适合测量的位置，