Internetwork Grains with TRACE

Abstract

We demonstrate that TRACE data are well suite to study- ing internetwork grain patterns.We ?rst show that wide-ban Ca II K filtergrams register spatio-temporal internetwork morphology including the occurrence of K2V grains,although the latter are a narrow-band phe- nomenon.We then show that the TRACE near-UV passbands image the same morphology.TRACE does so free of seeing deformations,over long times and large areas,and adds photospheric context as well.