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HMI Ring Diagrams
Pipeline Module Specifications
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pspec3
Module Version
0.9 18 V 2010
General Description
pspec3 is designed to calculate the full 3-dimensional power spectra of
a set of time series of 2-dimensional images. The input data are optionally
apodized by a (1-x^2)^2 taper operating between specified inner and
outer radii of the images and a similar taper operating on the time axis
(image number). The input data series must consist of 3-dimensional
data cubes (such as those produced by mtrack), each treated as a
separate data record.
Status
This version has been superseded by Version 1.0
Never used for ring-diagram pipelines
Not included in any JSOC release
The source code and Makefile is in ~rick/src/pspec
This version supersedes Version 0.8
Usage
pspec3 [-lvx] in= InputDescriptor pspec= OutputDescriptor
[param= val ...]
Flags
-l output direct power spectrum rather than scaled log
-n do not save output record (diagnostics only)
-v run verbose
-x use double-precision calculation internally
Parameters
in The name of an input dataset (record selection); No default
segment The name of the segment in the input data set to be used;
ignored if there is only one 3-dimensional segment in the
data set. Default: not specified
pspec The name of the output data series, which must already
exist; record specification is based on the input data record(s)
and the series prime keywords. No default.
mask_in Inner radial edge of spatial taper; Default: 0.9375
mask_ex Outer radial edge of spatial taper; Default: 1.0
apodize Inner edge of temporal taper; Default: 0.96875
fbin Output frequency binning; 0 -> no binning; Default: 0
Input Data series class:
tracked mapped data cubes from solar image data
Input keys used or inspected:
MapScale, T_STOP, T_START, CDELT3
Sample input series:
mdi.rdVtrack_dp
Output Data series class:
power spectra of data cubes
Output keys set (if possible):
CRPIX1, CRPIX2, CRPIX3, CRVAL1, CRVAL2, CRVAL3, CTYPE1, CTYPE2, CTYPE3,
CDELT1, CDELT2, Delta_k, Delta_kx, Delta_ky, CDELT3, Delta_nu, D_OMEGA,
Cadence, Apode_k_min, APOD_MIN, Apode_k_max, APOD_MAX, apode_f, LOG_BASE,
DataMin, DataMax, Module, BLD_VERS, Source, Input, Created
Input keys propagated to output (if possible):
CarrTime, CarrRot, CMLon, LonHG, LatHG, LonCM, MidTime, Duration, LonSpan,
T_START, T_STOP, Coverage, ZonalTrk, ZonalVel, MeridTrk, MeridVel,
MapScale, Size, Width, Height, MapProj, Map_PA, PosAng, RSunRef, MAI,
RSunRef
Sample output series:
mdi.rdVpspec_dp
Significant changes from Previous Version
Added setting of several keys and modified default keyword propagation
list
Added optional segment argument, removing restriction on the name
Bugs in current version
There is no checking that the input data series corresponds with a link
in the output series (if present)
The value of CDELT3 in the input set overrides the value of Cadence if
propagated, but is not checked for units