THIS PROJECT WILL STUDY TRAVELING IONOSPHERIC DISTURBANCES (TIDS) AND THEIR CONNECTION TO IONOSPHERIC IRREGULARITIES. IONOSPHERIC IRREGULARITIES ARE SMALL-SCALE PLASMA DENSITY STRUCTURES THAT EXIST NEARLY UNIVERSALLY IN THE EARTH'S UPPER ATMOSPHERE AND WHICH EXHIBIT DIVERSE CHARACTERISTICS. THEY ARE BELIEVED TO BE INITIATED THROUGH PLASMA NONLINEAR INSTABILITY PROCESSES. FRONTIER COMMUNITY TOPICS OF RELEVANCE INCLUDE HOW WHERE WHEN AND EXACTLY WHICH INSTABILITIES ARE IN ACTION FOR A GIVEN CONDITION. FURTHERMORE TIDS ARE VERY MUCH LIKE IRREGULARITIES A UBIQUITOUS AND PERMANENT FEATURE OF IONOSPHERIC VARIABILITY. DEPENDING ON SPATIAL SCALE AND PROPAGATION PROPERTIES TIDS ARE EXCITED BY FORCING FROM HIGH LATITUDES AND FROM BELOW. A JOINT TID AND IRREGULARITY RELATIONSHIP HAS BEEN REPORTED IN THE LITERATURE BUT THERE STILL EXISTS A LACK OF COMPREHENSIVE KNOWLEDGE TO ESTABLISH A CONNECTION BETWEEN CONDITIONS FOR TID EXCITATION TID PROPAGATION AND IRREGULARITY ONSET.