000	02308nam  2200373zi 4500
001	9.942900
003	CaOODSP
005	20240918081939
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008	240905e198012##nscad   ob   f000 0 eng d
040	|aCaOODSP|beng|erda|cCaOODSP
041	0 |aeng|beng|bfre
086	1 |aD68-21/4-1980E-PDF
100	1 |aEllis, Dale Douglas, |eauthor.
245	10|aNORM2L : |ban interactive computer program for acoustic normal mode calculations for the Pekeris model / |cD. D. Ellis ; approved by R. F. Brown.
264	1|aDartmouth, N.S. : |bCanada Research and Development Branch, Department of National Defence, Defence Research Establishment Atlantic, |cDecember 1980.
300	|a1 online resource (iv, 74 pages) : |billustrations, graphs.
336	|atext|btxt|2rdacontent
337	|acomputer|bc|2rdamedia
338	|aonline resource|bcr|2rdacarrier
490	1 |aD.R.E.A. technical memorandum ; |v80/K
500	|aDigitized edition from print [produced by Defence Research and Development Canada].
504	|aIncludes bibliographical references (page 31).
520	3 |a"The interactive computer program, NORM2L, calculates the discrete normal modes and acoustic propagation loss for the Pekeris model of the ocean. The Pekeris model is a simple two-layer model in which the two layers represent the seawater and seabed. For many shallow-water environments, the model is a reasonable approximation to the actual physical situation and can be used to investigate acoustic propagation at low frequencies. For ease of future expansion and modification, the program NORM2L is written in modular form in FORTRAN. The results of NORM2L are compared with those of other computer programs"--Abstract, page ii.
546	|aIncludes abstracts in English and French.
650	0|aUnderwater acoustics|xComputer programs.
650	0|aFORTRAN (Computer program language)
650	6|aAcoustique sous-marine|xLogiciels.
650	6|aFortran (Langage de programmation)
710	2 |aDefence Research Establishment Atlantic, |eissuing body.
830	#0|aD.R.E.A. technical memorandum ;|v80/K.|w(CaOODSP)9.941838
856	40|qPDF|s1.48 MB|uhttps://publications.gc.ca/collections/collection_2024/rddc-drdc/D68-21-4-1980-eng.pdf