{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T02:27:52Z","timestamp":1760149672156,"version":"build-2065373602"},"reference-count":6,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2023,8,31]],"date-time":"2023-08-31T00:00:00Z","timestamp":1693440000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>The claim that incoherent scatter radar data show electron density enhancements of 50\u201380% during some ionospheric heating experiments in a recent paper is questioned. The backscatter from the monostatic radar can indeed be enhanced during these experiments, but the conclusion that a large electron density increase is the cause is almost certainly wrong. Some natural plasma line data are presented in support of our claim. Previously published studies of similar events and a possible explanation for the observed increases in backscattered power are pointed out.<\/jats:p>","DOI":"10.3390\/rs15174294","type":"journal-article","created":{"date-parts":[[2023,8,31]],"date-time":"2023-08-31T11:41:18Z","timestamp":1693482078000},"page":"4294","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Comment on Blagoveshchenskaya et al. Artificial Ducts Created via High-Power HF Radio Waves at EISCAT. Remote Sens. 2023, 15, 2300"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2331-4718","authenticated-orcid":false,"given":"Michael","family":"Rietveld","sequence":"first","affiliation":[{"name":"EISCAT Scientific Association, 9027 Ramfjordbotn, Norway"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7436-3758","authenticated-orcid":false,"given":"Andrew","family":"Senior","sequence":"additional","affiliation":[{"name":"Independent Researcher, Lancaster LA1 2RX, UK"}]}],"member":"1968","published-online":{"date-parts":[[2023,8,31]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Blagoveshchenskaya, N.F., Borisova, T.D., Kalishin, A.S., and Egorov, I.M. (2023). Artificial Ducts Created via High-Power HF Radio Waves at EISCAT. Remote Sens., 15.","DOI":"10.3390\/rs15092300"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1669","DOI":"10.1002\/grl.50272","article-title":"Radio induced incoherent scatter ion line enhancements with wide altitude extents in the high-latitude ionosphere","volume":"40","author":"Senior","year":"2013","journal-title":"Geophys. Res. Lett."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1101","DOI":"10.5194\/angeo-38-1101-2020","article-title":"Ducting of incoherent scatter radar waves by field-aligned irregularities","volume":"38","author":"Rietveld","year":"2020","journal-title":"Ann. Geophys."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"435","DOI":"10.1016\/0021-9169(95)00047-X","article-title":"General incoherent scatter analysis and GUISDAP","volume":"58","author":"Lehtinen","year":"1996","journal-title":"J. Atmos. Sol. Terr. Phys."},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Gurevich, A.V. (1978). Nonlinear Phenomena in the Ionosphere, Springer.","DOI":"10.1007\/978-3-642-87649-3"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"459","DOI":"10.5194\/angeo-22-459-2004","article-title":"Stereo CUTLASS: A new capability for the SuperDARN radars","volume":"22","author":"Lester","year":"2004","journal-title":"Ann. Geophys."}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/15\/17\/4294\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T20:44:00Z","timestamp":1760129040000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/15\/17\/4294"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,8,31]]},"references-count":6,"journal-issue":{"issue":"17","published-online":{"date-parts":[[2023,9]]}},"alternative-id":["rs15174294"],"URL":"https:\/\/doi.org\/10.3390\/rs15174294","relation":{},"ISSN":["2072-4292"],"issn-type":[{"type":"electronic","value":"2072-4292"}],"subject":[],"published":{"date-parts":[[2023,8,31]]}}}