00000nam 2200000zi 4500 9.950375 CaOODSP 20250702120433 m o d f cr |n||||||||| 250423e196801##bccabd ob f000 0 eng d CaOODSP eng rda CaOODSP n-cn-nt DR52-13/1-1968E-PDF Milne, Allen R., 1921- author. Under-ice acoustic stability : preliminary experiment and theory of measurement (U) / by A.R. Milne. Under-ice acoustic stability : preliminary experiment and theory of measurement Victoria, B.C. : Defence Research Establishment Pacific : Defence Research Board, January 1968. 1 online resource (32 pages, 9 unnumbered pages) : illustrations, map, charts text txt rdacontent computer c rdamedia online resource cr rdacarrier Report ; No. 68-1 "P.C.C.D45-38-01-26." Digitized edition from print [produced by Defence Research and Development Canada]. Includes bibliographical references (page 28). "Sound-paths under sea-ice appear to be more stable than those in ice-free seas. High stability may permit a certain degree of reverberation cancellation to be utilized in fixed location echo ranging. The results of a preliminary experiment which measured the stability of direct sound-paths under the sea-ice of M'Clure Strait in the Canadian Arctic Archipelago are described."--Abstract (page 1). Underwater acoustic telemetry Arctic Archipelago (Nunavut and N.W.T.) Underwater acoustics Mathematical models. Télémétrie acoustique sous-marine Arctique, Archipel (Nunavut et T.N.-O.) Acoustique sous-marine Modèles mathématiques. Defence Research Establishment Pacific, issuing body. Canada. Defence Research Board, issuing body. Report (Defence Research Establishment Pacific) No. 68-1. (CaOODSP)9.936121 PDF 1.43 MB https://publications.gc.ca/collections/collection_2025/rddc-drdc/DR52-13-1-1968-eng.pdf