  Images from the Solar Dynamics Observatory (SDO) at 211A are used to identify
the solar source of the type III radio bursts seen in WIND/WAVES dynamic
spectra. 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 western
side of a sunspot in AR11092. The EUV jet emission also correlates well with
brightening at what looks like their footpoint at the edge of the umbra. For
10-15 min after strong EUV jets are ejected, the footpoint brightens at roughly
3 min intervals. In both the EUV images and the extracted light curves, it
looks as though the brightening is related to the 3-min sunspot oscillations,
although the correlation coefficient is rather low. The only open field near
the jets is rooted in the sunspot. We conclude that active region EUV/X-ray
jets and interplanetary electron streams originate on the edge of the sunspot
umbra. They form along a current sheet between the sunspot open field and
closed field connecting to underlying satellite flux. Sunspot running penumbral
waves cause roughly 3-min jet footpoint brightening. The relationship between
the waves and jets is less clear.
