Accession Number : AD0476352


Title :   ELECTROMAGNETIC FIELDS IN THE OCEAN NEAR A SHORELINE


Descriptive Note : Technical rept.


Corporate Author : RHODE ISLAND UNIV KINGSTON DEPT OF ELECTRICAL ENGINEERING


Personal Author(s) : Spence, John E ; Sullivan, Edmund J ; Beville, James J


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/476352.pdf


Report Date : 15 Nov 1965


Pagination or Media Count : 31


Abstract : The electromagnetic fields in the ocean resulting from ground wave excitation over land by natural electromagnetic noise such as Micropulsations or ELF Atmospherics are investigated analytically. A simplified two dimensional model is used. The purpose of the study is to determine the relative importance of electromagnetic energy propagation via air into the ocean versus propagation through the soil and ocean bottom into the sea. Vertical profiles of the horizontal electric field are plotted for several values of frequency, ocean depth, and the distance from the shoreline. The relative importance of the soil path is seen to be greater for shorter distances from the shore and for deeper oceans.


Descriptors :   *ELECTROMAGNETIC FIELDS , PROPAGATION , COASTAL REGIONS , ELECTRIC FIELDS , OCEANS , EXTREMELY LOW FREQUENCY , AIR TO UNDERWATER , ATMOSPHERICS


Subject Categories : Radiofrequency Wave Propagation


Distribution Statement : APPROVED FOR PUBLIC RELEASE