Selection of a site for the DUMAND detector with optimal water transparency

With reference to selecting a site for the DUMAND detector with optimal water transparency, measurements were made of the spectral distribution of light attenuation coefficients in samples from diffearent bodies of water, including Lake Baikal, the Atlantic Ocean, and the Mediterranean Sea. Results on the detection efficiency of Cerenkov radiation by the DUMAND detector indicate that not only the abyssal waters of the open ocean but also depressions of land-locked seas have the optical properties suitable for the operation of the DUMAND detector.