| 1 | |

| 2 | == Data Organization == |

| 3 | |

| 4 | The data organization describes the physical meaning of the independent |

| 5 | variable(s) with respect to which the observables are measured. This is |

| 6 | useful for knowing whether and how different data sets can be directly |

| 7 | compared, 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 |