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== HMI Pipeline Module - TimeAveraged_IQUV == == HMI Pipeline Module - TimeAverage_IQUV ==
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The nominal cadence is 12 minutes, nominally averaging 8 90-second input records, but actually more with appropriate weighting to reduce aliasing.
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Output data are temporary products and not archived. ===== Module Inputs =====
 . Input is the set of corrected level 1.0 HMI filtergrams needed to compute I, Q, U, and V for a specified time period.
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Currently this module has not been prototyped. ===== Module Outputs =====
 . The output is a DRMS dataset containing the appropriately time-averaged quantities I, Q, U,and V, corrected for solar rotation and other known instrumental effects.
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Currently this code has not been written.
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Currently this module has not been tested. ===== Cadence =====
 . Nominally 12 minute averages of I,Q,U, and V will be produced.
 . Effectively 8 90-second input records will be averaged, but actually more will contribute with appropriate weighting to reduce aliasing.
 
===== Options =====
 . Anti-aliasing option
 . Time and duration of averaging
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Currently this module has known issues:
 * type of temporal anti-alias filtering		 ===== Archive =====
 . I,Q,U, and V are not archived.
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The responsible scientist is Jesper Schou ===== Overall Status of Module =====
 . 75% complete
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 . ''Back to ["HMIModuleTable"]''		 ===== Status of Code =====
 . 85%
 . Code has been run on HMI test data

===== Status of DRMS module =====
 . 50%

===== Issues needing resolution =====

  * Type of temporal anti-alias temporal filtering
 
===== Responsible scientist =====
 . Jesper Schou

===== Remarks =====



----

 . ''Back to [[HMIModuleTable]]''

HMI Pipeline Module - TimeAverage_IQUV

For a given time and duration this pipeline module locates the corrected level 1 HMI filtergrams needed to compute I, Q, U, and V. The filtergrams are interpolated to the proper time, remapped to the correct disk coordinates, and averaged to determine I,Q,U,& V. The output is a DRMS dataset containing the appropriately time-averaged quantities corrected for solar rotation and other known instrumental effects.

Module Inputs
  • Input is the set of corrected level 1.0 HMI filtergrams needed to compute I, Q, U, and V for a specified time period.

Module Outputs
  • The output is a DRMS dataset containing the appropriately time-averaged quantities I, Q, U,and V, corrected for solar rotation and other known instrumental effects.

Cadence
  • Nominally 12 minute averages of I,Q,U, and V will be produced.
  • Effectively 8 90-second input records will be averaged, but actually more will contribute with appropriate weighting to reduce aliasing.

Options
  • Anti-aliasing option
  • Time and duration of averaging

Archive
  • I,Q,U, and V are not archived.

Overall Status of Module
  • 75% complete

Status of Code
  • 85%
  • Code has been run on HMI test data

Status of DRMS module
  • 50%

Issues needing resolution
  • Type of temporal anti-alias temporal filtering

Responsible scientist
  • Jesper Schou

Remarks

JsocWiki: TimeAverage_IQUV (last edited 2013-05-01 04:35:23 by localhost)