A previous run in support of eclipse observations was carried out in Japan during the annular eclipse of May 20-21, 2012. See the SuperDARN News item at

http://vt.superdarn.org/tiki-read_article.php?articleId=86(external link)

The results were described by Prof. Ogawa at the SuperDARN 2013 Workshop in Moose Jaw, Saskatchewan, Canada. The Hokkaido radar was run in 'Eclipse-Scan' mode, basically Themis-Scan with 15 km range resolution and beam 0 omitted. Quoting Nishitani-san: 'He found 6 min and 2-3 min vertical oscillations of the ionosphere in association with the approaching of the eclipse region. It was difficult to identify one-to-one relationship, however, because the eclipse region did not cross the Hokkaido radar field of view.' Eclipse effects were clearly made out only in the high-resolution camping beam (Beam 4). Analogous effects in TEC were also observed.

Related reading:

Pitout, F., P.-L. Blelly, D. Alcaydé, High-latitude ionospheric response to the solar eclipse of 1 August 2008: EISCAT observations and TRANSCAR simulation, J. Atmos. Sol. Terr. Phys., 105-106, 336-349, 2013.