Diff for "TimeAverage_IQUV"

Differences between revisions 1 and 8 (spanning 7 versions)

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

Overall Status of Module

75% complete

Status of Code

85%
Code has been run on HMI test data

Status of DRMS module

Issues needing resolution

Type of temporal anti-alias temporal filtering

Responsible scientist

Jesper Schou

Remarks

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-  ⇤ ← Revision 1 as of 2009-03-17 04:21:48 → 
  Size: 65
  Editor: l4-m0
  Comment:
+   ← Revision 8 as of 2009-03-19 03:01:17 → ⇥
  Size: 1734
  Editor: l4-m0
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
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-HMI Pipeline Module - TimeAveraged_IQUV
+=== HMI Pipeline Module - TimeAverage_IQUV ===
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-''Back to LevelOne''
+== 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 =====



----

 . ''Back to ["HMIModuleTable"]''
 . ''Back to Lev1Doc''
 . ''Back to VectorMagneticField''
 . ''Back to FrontPage''