Accession Number : AD0708556

Title :   RAPLOT, A COMPUTER PROGRAM FOR DATA PROCESSING AND GRAPHICAL DISPLAY FOR RADIOISOTOPIC SAND TRACER STUDY,

Corporate Author : ARMY COASTAL ENGINEERING RESEARCH CENTER WASHINGTON D C

Personal Author(s) : Turner,Philip A.

Report Date : MAY 1970

Pagination or Media Count : 66

Abstract : RAPLOT II is a computer program for processing radiation and navigation data from field surveys of the Radioisotopic Sand Tracer (RIST) study, but is applicable to any survey type operation on the nearshore Continental Shelf. Collected data are punched onto paper tape by the data collection computer on the research vessel. The data are later transferred to magnetic tape which provides the input for the RAPLOT II Program. Program control parameters are on punched cards. The navigation data, which consists of ranges to two shore-based radar beacons, are first edited for spurious data, and then converted to rectangular coordinates (in this case the California Lambert Coordinate System). Radiation data are converted to count rate as counts per second. Background count rate is computed and subtracted from the observed count rate, and any radiation counts that are significantly above the background count rate are corrected for time of decay since the isotope was injected. Output from the program is in three forms - printed output, graphical output, and magnetic tape record. The processed data are transferred to magnetic tape and made available for further processing such as the generation of contour maps. (Author)

Descriptors :   (*BEACHES, EROSION), (*SAND, TRANSPORT PROPERTIES), (*TRACER STUDIES, COMPUTER PROGRAMS), DISPLAY SYSTEMS, RADIATION MONITORS, GRAPHICS, RADIOACTIVE ISOTOPES, MAPPING

Subject Categories : Physical and Dynamic Oceanography
      Computer Programming and Software
      Isotopes

Distribution Statement : APPROVED FOR PUBLIC RELEASE