Wedel is a small German town to the west of Hamburg. It is located at the right (northern) bank of the river Elbe and lies within the metropolitan area of Hamburg. The measurement devices are set up in a small building at the Wedel branch office of the Water and Shipping Authority of Hamburg (WSA), very close to the river (about 10 m apart). Included is a one-channel MAX-DOAS instrument measuring in the UV and the visible, the Airpointer in-situ device (29.04.2013–03.07.2013), passive samplers, a high volume sampler and an AIS receiver.

Viewing Directions of the Wedel MAX-DOAS instrument towards the river Elbe [Image source:    (01.04.2014)