Browsing by Author "Gajewski, Lucjan"

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Metody badań dna morskiego pod kątem szacowania zasobów kruszyw mineralnych w Zatoce Koszalińskiej
(Wydawnictwa AGH, 2011) Szefler, Kazimierz; Hac, Benedykt; Rudowski, Stanisław; Gajewski, Lucjan; Gajewski, Łukasz
The effects of the application of modern, integrated non-invasive measuring system to detailed recognition and mapping of the sea bottom in relation to determination of the mineral aggregates are presented. The bottom images obtained by Multibeam Echosounder and Side-Scan Sonar, seismic profiling by Subbottom Profiler, bottom inspection by underwater TV ROV system and magnetometer measurements were used. All data were collected and elaborated with precise positioning system, with precision better than 0.2 m, in nearly real time. Presented examples are situated within sandy/gravelly exploitation field in the Bay of Koszalin. The obtained results demonstrate the necessity to strongly demand the use of the adequate methods in regulations concerning exploration, exploitation and monitoring of the resources on the sea bottom. According to authors the first stage of the work must be to obtain bottom images by Multibeam Echosounder. The next stages will depend on the obtained bottom shape. The studies and measurements realized without Multibeam Echosounder images are not credible.
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Organizacja morskich badań geofizycznych na przykładzie projektu »BalticPipe«
(Wydawnictwa AGH, 2011) Hac, Benedykt; Gajewski, Juliusz; Gajewski, Lucjan; Nowak, Jarosław Robert; Szefler, Kazimierz
Exploration of raw minerals on sea bottom using specialised research vessels, equipped in devices (multibeam echosounders, side scan sonars, subbottom profilers, etc.) for geophysical investigations, in its organizational aspects does not essentially differ from other activities aimed at investigation of surface sea bottom sediments. This information concerning sea bottom is also necessary for preparatory work before laying pipelines, power and telecommunication cables, and building hydraulic engineering constructions. The organization of geophysical investigations in the sea named in the title of the paper, aimed at gaining knowledge on sea bottom structure along a planned pipeline, is a good tool to demonstrate the way how to prepare and to carry out exploration of raw materials on the sea bottom, using acoustic methods.