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The top of the ionosphere can be below 250\u00a0km (25% occurrence rate) or above 650\u00a0km (1%); the topside ionosphere can be well\u2010described by a single scale height (10%) or two\/three regions with distinct scale heights (25% or 10%), where those scale heights range between tens and hundreds of kilometers; the main layer of the ionosphere can have a sharply pointed (5%), flat\u2010topped (6%), or wavy (8%) shape, in contrast to its usual Chapman\u2010like shape; a broad increase in electron density is detected at 160\u2013180\u00a0km (10%); a narrow increase in electron density is sometimes found in strongly\u2010magnetized regions; and an additional layer is present between the M1 and M2 layers (3%).<\/jats:p>","DOI":"10.1029\/2012gl053193","type":"journal-article","created":{"date-parts":[[2012,8,8]],"date-time":"2012-08-08T08:15:13Z","timestamp":1344413713000},"source":"Crossref","is-referenced-by-count":54,"title":["A clear view of the multifaceted dayside ionosphere of Mars"],"prefix":"10.1029","volume":"39","author":[{"given":"Paul","family":"Withers","sequence":"first","affiliation":[]},{"given":"Kathryn","family":"Fallows","sequence":"additional","affiliation":[]},{"given":"Zachary","family":"Girazian","sequence":"additional","affiliation":[]},{"given":"Majd","family":"Matta","sequence":"additional","affiliation":[]},{"given":"Bernd","family":"H\u00e4usler","sequence":"additional","affiliation":[]},{"given":"David","family":"Hinson","sequence":"additional","affiliation":[]},{"given":"Len","family":"Tyler","sequence":"additional","affiliation":[]},{"given":"David","family":"Morgan","sequence":"additional","affiliation":[]},{"given":"Martin","family":"P\u00e4tzold","sequence":"additional","affiliation":[]},{"given":"Kerstin","family":"Peter","sequence":"additional","affiliation":[]},{"given":"Silvia","family":"Tellmann","sequence":"additional","affiliation":[]},{"given":"Javier","family":"Peralta","sequence":"additional","affiliation":[]},{"given":"Oliver","family":"Witasse","sequence":"additional","affiliation":[]}],"member":"13","published-online":{"date-parts":[[2012,9,18]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1029\/2004JE002265"},{"key":"e_1_2_6_3_1","first-page":"1054","volume-title":"Mars","author":"Barth C. 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