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The default value is no averaging, meaning the data is not altered. Some echosounders are configured to do ping averaging during acquisition, so the data you request with with 'Data not altered (none)' could already be averaged. To determine if the echosounder is averaging data as it is acquiring it, check the device details page (e.g. http://dmas.uvic.ca/DeviceListing?DeviceId=22608, go to the additional attributes tab) or check the data products: see the comment field in the plots or the Config structure in mat files, look for Config.p Available ensemble periods are 1, 10, 15 and 60 minutes.

• Data not altered

  Oceans 2.0 API filter: dpo_ensamblePeriod=0

• 1 Minute

  Oceans 2.0 API filter: dpo_ensamblePeriod=60

• 10 Minute

  Oceans 2.0 API filter: dpo_ensamblePeriod=600

• 15 Minute

  Oceans 2.0 API filter: dpo_ensamblePeriod=900

• 1 Hour

  Oceans 2.0 API filter: dpo_ensamblePeriod=3600

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• Calibrated (if available)

  Oceans 2.0 API filter: dpo_calibration=1

• Uncalibrated (raw data)

  Oceans 2.0 API filter: dpo_calibration=0

File-name mode field

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The default will not add a plot of sun elevation.

• Hide

  Oceans 2.0 API filter: dpo_sunElevation=0

• Show

  Oceans 2.0 API filter: dpo_sunElevation=1

File-name mode field

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