Detection of Spread-F, foF2 values and Planetary and Gravity Wave Signatures using Digisonde instruments and their comparison with COSMIC-I/FORMOSAT-3, SAMI and IRI data ...

• Main Authors: Bhaneja, Preeti, Klenzing, Jeffery, Bullett, Terry
• Format: Conference Object
• Language: unknown
• Published: Zenodo 2023
• Subjects: Poster Session; sami
• Online Access: https://dx.doi.org/10.5281/zenodo.7883843; https://zenodo.org/record/7883843

A comprehensive statistical study of Spread F using digisonde data from low and midlatitude global sites has been conducted. Data from five midlatitude stations in the north-American include: Ramey AFB, Puerto Rico (18.5°N, 67.1°W, -14° declination angle) for 1996-2011, Wallops Island, Virginia (37.95°N, 75.5°W, -11° declination angle) for 1996-2011, Dyess, Texas (32.4°N, 99.8°W, 6.9° decl. angle) for 1996-2009, Boulder, Colorado (40°N, 105.3°W, 10° decl. angle) for 2004-2011, and Vandenberg AFB, California (34.8°N,120.5°W, 13° decl. angle) for 1996-2009. Low-latitude stations include: Ascension Island (7.9°S, 14.4°W, -15.09° decl. angle) from 2000-2014, Kwajalein (8.71°N, 167.7°E, 7.5° decl. angle) from 2004-2012. Multiple algorithms have been written to process the raw data and determine spread F by using edge detection and pattern recognition techniques. Pattern recognition algorithms are used to determine the presence of both range and frequency spread F. Algorithms have also been written to find foF2 ...