00000nam 2200000zi 4500 9.881097 CaOODSP 20240219183523 m o d f cr |n||||||||| 191024t20182018onc ob f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn--- D68-3/184-2018E-PDF Themens, David R., author. The Empirical Canadian High Arctic Ionospheric Model (E-CHAIM) : bottomside / David Themens [and three others]. Ottawa : Defence Research and Development Canada = Recherche et développement pour la défense Canada, 2018. ©2018 1 online resource (vii, 29 pages) text txt rdacontent computer c rdamedia online resource cr rdacarrier Contract report ; DRDC-RDDC-2018-C184 "Can unclassified." "October 2018." "PSPC Contract Number: W7714-186507/001/SS." Includes bibliographical references (pages 26-27). "In this study, we present a bottomside model representation to be used by the Empirical Canadian High Arctic Ionospheric Model (E-CHAIM). This model features a new approach to modeling the bottomside electron density; namely, instead of modelling electron density directly, E-CHAIM models the altitude profile of the scale thickness of a single bottomside layer. In this approach the curvature in the bottomside associated with the E-region and F1-layer is represented in the scale thickness domain as a peak function centered at the layer peak altitude. The use of this approach ensures the production of explicitly doubly differentiable bottomside electron density profiles and directly avoids issues known to exist within current standard, such as the International Reference Ionosphere (IRI), which has discontinuities in space, time, and in the vertical electron density gradient"--Abstract. Includes abstract in French. gccst Northern Canada gccst Air Defence R&D Canada. Contract report (Defence R&D Canada) DRDC-RDDC-2018-C184. (CaOODSP)9.802312 PDF 5.72 MB https://publications.gc.ca/collections/collection_2019/rddc-drdc/D68-3-184-2018-eng.pdf