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Images from the Solar Dynamics Observatory (SDO) at 211A are used to identifythe solar source of the type III radio bursts seen in WIND/WAVES dynamicspectra. We analyse a 2.5 hour period during which six strong bursts are seen.The radio bursts correlate very well with the EUV jets coming from the westernside of a sunspot in AR11092. The EUV jet emission also correlates well withbrightening at what looks like their footpoint at the edge of the umbra. For10-15 min after strong EUV jets are ejected, the footpoint brightens at roughly3 min intervals. In both the EUV images and the extracted light curves, itlooks as though the brightening is related to the 3-min sunspot oscillations,although the correlation coefficient is rather low. The only open field nearthe jets is rooted in the sunspot. We conclude that active region EUV/X-rayjets and interplanetary electron streams originate on the edge of the sunspotumbra. They form along a current sheet between the sunspot open field andclosed field connecting to underlying satellite flux. Sunspot running penumbralwaves cause roughly 3-min jet footpoint brightening. The relationship betweenthe waves and jets is less clear.

EUV jets, type III radio bursts and sunspot waves investigated using SDO/AIA observations