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Should I use Terra or Aqua data?

Users need to make this determination for themselves based on the particular needs of their study.  For Collection 5 we feel Aqua is the more reliatble sensor due to the issues discussed in the FAQ "Is there a difference between Terra vs Aqua AOD?"   However for many types of studies data from either sensor can be used. Collection 6 data will require further study but we expect Aqua to be the more reliable sensor.