Electron and ion temperature data in the ionosphere derived from incoherent scatter 
measurements with the MU radar (text, netCDF and png format)

Description:

   Electron and ion temperature data (about 1-hour average) in the ionosphere
 (228--724 km) taken by the MU radar at Shigaraki in Shiga Prefecture, Japan
 (34.86N, 136.11E, 385m MSL), which has been operated in the incoherent scatter observation mode.

Data and file name: 

  Text:   (YYYYMMdd)_drift.txt
  NetCDF: (YYYYMMdd)_drift.nc
  PNG:    (YYYYMMdd)_drift.png

  Details are described in the metadata (text, netCDF and png).


Data format (for text data)：

   17
  228.5  273.6  318.7  363.8  408.9  454.0  499.1  544.2  589.3  634.4  679.5  724.6
2012/06/15 00:00:17 -- 2012/06/15 00:58:53
     0.0     0.0   3     0.0     0.0   0.000E+00  -0.251E+02
   421.5   421.5   0   321.0   321.0   0.000E+00  -0.211E+02
   782.4   782.4   0   111.0   111.0   0.000E+00  -0.168E+02
   749.4   749.4   0   113.0   113.0   0.000E+00  -0.168E+02
   803.8   803.8   0   174.1   174.1   0.000E+00  -0.186E+02
   748.4   748.4   0   339.1   339.1   0.000E+00  -0.213E+02
   887.9   887.9   0   788.4   788.4   0.000E+00  -0.248E+02
   488.0   488.0   0  1141.2  1141.2   0.000E+00  -0.263E+02
     0.0     0.0   3     0.0     0.0   0.000E+00   0.000E+00
   860.0   860.0   1  -999.0  -999.0   0.000E+00  -0.440E+02
     0.0     0.0   3     0.0     0.0   0.000E+00   0.000E+00
   870.9   870.9   0     0.0     0.0   0.000E+00   0.000E+00

  line 1: Number of data (temporal dimension) stored in the file (N)
  line 2: Height(km) (h= 1..12)
  line 3: Datetime
　line 4--15: Data (Ti, Te, icon, er_Ti, er_Te, er_Tr, SNR) for each height

    column 1: (Ti)    Ion temperature [K]
    column 2: (Te)    Electron temperature [K]
    column 3: (icon)  Condition code (0 is normal.  0, 1, and 4 are available)
    column 4: (er_Ti) Error of estimate for Ti [K]
    column 5: (er_Te) Error of estimate for Te [K]
    column 6: (er_Tr) Error of estimate for Tr (=Te/Ti)
    column 7: (SNR)   Signal to noise ratio

  line 16: Datetime
　line 17--28: Data (Ti, Te, icon, er_Ti, er_Te, er_Tr, SNR) for each height
   ....


Data revision:

  Initial version was released on October 15, 2012. 


Revision history:

  15OCT2012  :  Updated metadata file.
  15OCT2012  :  Initial version for numerical data.
                Updated PNG data.