Changes between Initial Version and Version 1 of DataOrganization


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Timestamp:
06/09/05 12:33:03 (14 years ago)
Author:
rick
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  • DataOrganization

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     1 
     2== Data Organization == 
     3 
     4The data organization describes the physical meaning of the independent 
     5variable(s) with respect to which the observables are measured.  This is 
     6useful for knowing whether and how different data sets can be directly 
     7compared, overlaid, mapped, or otherwise transformed. 
     8 
     9 
     10 
     11==== Data_Layout ==== 
     12 
     13 
     14  type: ''menu''[[BR]] 
     15  FITS keyword: ''DATA_ORG''[[BR]] 
     16  The following values are recognized: 
     17 
     18 
     19  ''' image ''' 
     20 
     21 
     22    data organized by two dimensions corresponding to angular displacement 
     23    along the axes; examples include photograms (digital or digitized 
     24    photographs), spectroheliograms, magnetograms, and Dopplergrams 
     25 
     26  ''' map ''' 
     27 
     28 
     29    data organized by two dimensions corresponding to spatial displacement 
     30    along the axes; examples include synoptic charts 
     31 
     32  ''' time_series ''' 
     33 
     34 
     35    data organized by one dimension corresponding 
     36    to temporal displacement along the axis; note that this is not the 
     37    same as a time-tagged set of data records, since it implies sampling 
     38    uniformity and provision for data gaps 
     39 
     40  ''' movie ''' 
     41 
     42 
     43    data organized by three dimensions corresponding to spatial or 
     44    angular displacement along two axes and temporal displacement along 
     45    the principal (most slowly varying) axis 
     46 
     47  ''' spectrum ''' 
     48 
     49 
     50    data organized by one dimension corresponding to displacement in 
     51    electromagnetic wavelength or frequency along the axis 
     52 
     53  ''' mode_spectrum ''' 
     54 
     55 
     56    data organized by one or more dimensions corresponding to the quantum 
     57    numbers of oscillations 
     58 
     59  ''' spectral_temporal ''' 
     60 
     61 
     62    data organized by two dimension corresponding to displacement in wavelength or frequency along one axis and temporal diplacement along the other 
     63 
     64  ''' spatial_spectral ''' 
     65 
     66 
     67    data organized by two dimensions corresponding to spatial or angular image axes and one corresponding to electromagnetic spectral displacement