Runoff and stable isotope data of the Wüstebach catchment

The target of the Open Geospatial Consortium (OGC) is interoperability of geographic information, which means creating opportunities to access geodata in a consistent, standardized way. In the domain of sensor data, the target will be picked up within the OGC Sensor Web Enablement Initiative and especially reached through the Sensor Observation Service (SOS) standard. This one defines a service for a standardized access to time series data and is usually used for in situ sensors (like discharge gauges and climate stations). Although the standard considers raster data, no implementation of the standard for raster data exists presently. In this paper an OGC-compliant Sensor Observation Service for a standardized access to raster data is described. A data model was developed that enables effective storage of the raster data with the corresponding metadata in a database, reading this data in an efficient way, and encoding it with result formats that the SOS-standard provides.开放地理空间联盟（Open Geospatial Consortium, OGC）的核心目标是实现地理信息的互操作性，即打造以统一、标准化的方式访问地理数据的途径。在传感器数据领域，该目标将通过OGC传感器网启用（Sensor Web Enablement）倡议推进，尤其依托传感器观测服务（Sensor Observation Service, SOS）标准得以实现。该标准定义了一套用于标准化访问时间序列数据的服务规范，通常应用于原位传感器（如流量计、气候监测站）场景。尽管该标准已覆盖栅格数据，但目前尚未出现针对栅格数据的标准实现方案。本文阐述了一种兼容OGC规范的传感器观测服务，用于标准化访问栅格数据。研究团队开发了一款数据模型，可实现栅格数据及其关联元数据在数据库中的高效存储、高效读取，并采用SOS标准所支持的结果格式完成数据编码。