January 1984	VOLUME 9	NUMBER 1	IJOEDY	(ISSN 0364-9059)

 SPECIAL ISSUE ON Oceanic seismic exploration

NONTECHNICAL CONTENT
		Front cover and table of contents
		Back cover
INTRODUCTION
Rui J. P. De Figueiredo and Gerald H. F. Gardner		Special issue on oceanic seismic exploration--Introduction to the issue		1
INVITED PAPERS
David A. Fisher and Gerald H. F. Gardner		Physical and numerical modeling of reflections from interfaces and thin layers		3
John A. DeSanto		Oceanic sound speed profile inversion		12
David J. Thomson		An inverse method for reconstructing the density and sound speed profiles of a layered ocean bottom		18
N. Ross Chapman, Ian Barrodale, and Cedric A. Zala		Measurement of sound-speed gradients in deep-ocean sediments using l_{1} deconvolution techniques		26
Lester R. LeBlanc		Angular-spectral decomposition beamforming for acoustic arrays		31
William H. Dragoset and Kenneth L. Larner		Data enhancement from a 500-channel streamer		40
Jonathan M. Berkson and J. E. Matthews		Statistical characterization of seafloor roughness		48
BOOK REVIEWS
Roger G. Pridham		Acoustics and the Sea Bed		53