Because of theinfluence of wind in creating current, there is a relationshipbetween this oceanic circulation and the general circulationof the atmosphere. The oceanic circulation is shown on thechart following this page (winter N. hemisphere), with thenames of the major ocean currents.
Radiological Dispersion Device. Terrorist use of a Radiological Dispersion Device (RDD) â often called âdirty nukeâ or âdirty bombâ â is considered far more likely than use of a nuclear explosive device. An RDD combines a conventional explosive device â such as a bomb â with radioactive material.
Data flow diagrams (DFDs) reveal relationships among. and between the various components in a program or. system. DFDs are an important technique for modeling a. systemâs high-level detail by showing how input data is. transformed to output results through a sequence of. functional transformations. DFDs consist of four major.