Blue wing asymmetries for the eastern and western upflows of NOAA AR 11150 (No. 6 in Table 1). Left panel: 193 Å image taken by the Solar Dynamics Observatory/Atmospheric Imaging Assembly (SDO/AIA), with the white box corresponding to the EIS field-of-view. Middle panel: EIS Fe XII 192.394 Å image and Doppler velocity maps. Final panel: mean spectrum of the pixels highlighted by the black boxes in the EIS scans (middle panel), fitted with a single Gaussian.