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		| Paper: | 
		Systematic Errors in Dopplergrams of Active Regions and Their Correction | 
	 
	
		| Volume: | 
		358, Solar Polarization 4 | 
	 
	
		| Page: | 
		100 | 
	 
	
		| Authors: | 
		Wachter, R.; Rajaguru, S.P. | 
	 
	
	
		| Abstract: | 
		We correct MDI Dopplergrams in magnetic regions for observational errors due to changes in the absorption line, and investigate the influence of the correction on travel time maps and power maps. | 
	 
	
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