Integration of In-situ and remote sensing Data for Water Risk Management

Abstract: The combination of environmental measurements from different sensor equipment im-proves water quality monitoring and associated risk management. The merging of in-situ and remote sensing data is a prerequisite to efficient monitoring of coastal and marine environments, because of their complementary nature and application areas. Both sensor types can monitor the same phenomena, but remote sensing delivers the overall picture and in-situ measuring pro-vides localised, high resolution measurements, over a wide range of parameters. The WARMER (WAter RiskManagement in EuRope) system combines remote sensing satellite data with in-situ measurements for water quality risk management applications and delivers products to end-users through a web GIS (Geographic Information System) portal. This data combination aspect brings the WARMER system in line with the objectives of the GMES (European Global Monitoring for Environment and Security) initiative. The ADDP (Aberdeen DISPRO DB Proxy) is a key element in the WARMER system, because it conditions in-situ measurements for the data combination. This paper details the handling of in-situ data within the ADDP, especially its capability to aggregate in-situ data frommultiple sources. This aggregation caused problems with data synchronisation and unification, which influenced th