Accession Number : AD1051604


Title :   Total electron count variability and stratospheric ozone effects on solar backscatter and LWIR emissions


Descriptive Note : Technical Report,01 Jun 2015,31 Mar 2017


Corporate Author : Air Force Institute of Technology WPAFB United States


Personal Author(s) : Ross, John S


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1051604.pdf


Report Date : 10 Mar 2017


Pagination or Media Count : 94


Abstract : The development of an accurate ionospheric Total Electron Content (TEC) model is of critical importance to High Frequency (HF) radio wave propagation. However, the TEC is highly variable and is continuously influenced by geomagnetic storms, extreme Ultraviolet (UV) radiation, diurnal variation, and planetary waves. The ability to capture this variability is essential to improve current TEC models. Analysis of the growing body of data involving ionospheric fluctuations and thermal tides has revealed persistent correlation between increases in stratospheric ozone and variability of the TEC. The spectral properties of ozone show that it is a greenhouse gas that alters longwave emissions from Earth and interacts with the UV spectrum coming from the sun. This study uses the Laser Environment Effects Definition and Reference (LEEDR) to model and simulate the effect of changes in stratospheric ozone on solar backscatter and longwave terrestrial emissions and infer TEC variability.


Descriptors :   electromagnetic radiation , measurement , solar radiation , jet propulsion , global navigation satellite systems , electron density , electromagnetic scattering , artificial satellites , altitude , ionosphere , optical properties , backscattering , High Frequency , wave propagation , LONGWAVELENGTH INFRARED RADIATION


Subject Categories : Radiofrequency Wave Propagation
      Atmospheric Physics


Distribution Statement : APPROVED FOR PUBLIC RELEASE