00000nam 2200000zi 4500 9.881084 CaOODSP 20240222165851 m o d f cr |n||||||||| 191024t20192018oncdb ob f000 0 eng d CaOODSP eng rda CaOODSP n-cn--- D68-3/040-2019E-PDF Themens, David R., author. The Empirical Canadian High Arctic Ionospheric Model (E-CHAIM) : NmF2 and hmF2 / David R. Themens [and three others]. Ottawa : Defence Research and Development Canada = Recherche et développement pour la défense Canada, 2019. ©2018 1 online resource (vi, 31 pages) : charts, maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Contract report ; DRDC-RDDC-2018-C195 "Can unclassified." "January 2019." Cover title. "PSPC Contract Number: W7714-186507/001/SS." Includes bibliographical references (pages 27-29). "We present here the Empirical Canadian High Arctic Ionospheric Model (E-CHAIM) quiet NmF2, perturbation NmF2, and quiet hmF2 models. These models provide peak ionospheric characteristics for a domain above 50ºN geomagnetic latitude. Model fitting is undertaken using all available ionosonde and radio occultation electron density data, constituting a dataset of over 28 million observations. A comprehensive validation of the model is undertaken and performance is compared to that of the International Reference Ionosphere (IRI)"--Abstract. gccst Northern Canada gccst Air Defence R&D Canada. Ottawa Research Centre. Contract report (Defence R&D Canada) DRDC-RDDC-2018-C195. (CaOODSP)9.802312 PDF 5.80 MB https://publications.gc.ca/collections/collection_2019/rddc-drdc/D68-3-195-2018-eng.pdf