2021-08-25T11:50:15.000Z http://sot.lmsal.com Ted Tarbell LMSAL http://lmsal.com 3251 Hanover Rd, O/ADBS, B/252, Palo Alto, CA, 94304 +1-650-424-2400 tarbell@lmsal.com Hinode SOTSP Arai Yoshitake Tiwari (RCO) 362 362 null HOP 362 on AR 12859 PLG PLG 12859 Plage 6 -402 161 0 0 2021-08-26T00:04:00.000Z 2021-08-26T01:03:00.000Z -402 161 The role of chromospheric jets for the heating of plages Fast map, 164x164", 1-side, Q75, no repeat Main Objective: Chromospheric jets and photospheric magnetic fields in plage regions Scientific Justification: The main purpose is spectroscopically revealing the role of chromospheric jets for the heating of plages by investigating time variation of chromospheric absorption lines around fine structures in plages. Chromospheric lines (CaII, MgII, H-alpha) are observed with spectroscopes of IRIS and Hida/DST. The chromospheric temperature will be derived from CaII and MgII, and velocity field will be derived from H-alpha. On the other hand, photospheric magnetic fields under jets are observed with HINODE/SOT.