The Hotel Atlantik (Universum) is very near the university (see map below).
University area The hotel can be found in the lower left corner of the map.
How to find the institute
The address of the iup/ife institutes is: Institute of Environmental Physics (iup) and Remote Sensing (ife) Dept. of Physics and Electrical Engineering, FB1 P.O. Box 330440 D-28334 Bremen Germany
From Bremen Airport, and also from Bremen Central Train Station, use streetcar line 6 to University, "Naturwissenschaften 1"