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; リリースノート                                                                 2012年2月2日
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=============================
バージョン1.0.2 (2012/02/02)
=============================

1. 現バージョンの全てのnetCDFファイルについて、以下のようにいくつかのattributeを変更した。
    
  [Variable attribute]
   (1) num:long_name = "Number of observed meteors per hour"
                    -> "Number of meteors used for the weighted average of the horizontal wind"

  [Global attribute]
   (1) :History = "Data version 1.0.1"
               -> "Data version 1.0.2"

   (2) :ResouceName = "Horizontal wind data in the mesosphere and lower thermosphere 
                       estimated from the meteor wind radar at Serpong."
                   -> "Horizontal wind data in the mesosphere and lower thermosphere 
                       estimated from the meteor wind radar observations at Serpong."

   (3) :Description = "The horizontal wind data in the mesosphere and lower thermosphere 
                       (70-112 km) estimated from the meteor wind radar at Serpong, one 
                       of the south-west suburbs of Jakarta, Indonesia (6.36S, 106.65E, 
                       50m MSL). The wind data are calculated from the original observation 
                       data with a weighting function. They are stored in the netCDF (network 
                       Common Data Form) file named jkt(year)(month).(resolution).nc or 
                       jkt(year)(month)(day).(resolution).nc. The resolution abbreviations are 
                       h2t60min00 and h4t240min00. For example, h2t60min00 means the weighted 
                       average with height and time resolutions of 2 km and 60 minutes for the
                       data windows of +/-2 km and +/-60 minutes. The netCDF file includes time, 
                       height, zonal and meridional winds, standard deviations of zonal and 
                       meridional winds, and the number of meteor trails used to determine the 
                       horizontal wind."
                   -> "The horizontal wind data in the mesosphere and lower thermosphere 
                       (70-112 km) estimated from the meteor wind radar observations at Serpong, 
                       one of the south-west suburbs of Jakarta, Indonesia (6.36S, 106.65E,
                       50m MSL). The wind data are calculated from the original observation data 
                       with a weighting function. They are stored in the netCDF (network Common 
                       Data Form) file named jkt(year)(month).(resolution).nc or 
                       jkt(year)(month)(day).(resolution).nc. The resolution abbreviations are 
                       h2t60min00 and h4t240min00. For example, h2t60min00 means the weighted 
                       average with height and time resolutions of 2 km and 60 minutes for the 
                       data windows of +/-2 km and +/-60 minutes. The netCDF file includes time, 
                       height, zonal and meridional winds, standard deviations of zonal and 
                       meridional winds, and number of meteor trails used for the weighted average 
                       of the horizontal wind."

   (4) :MaximumAltitude = "110000" -> "112000" 

=============================
バージョン1.0.1 (2011/09/22)
=============================

1. バージョン1.0.1の全てのnetCDFファイルに対して、時刻とその
    attributeを変更した。この詳細は、以下の通りである。

(1) 変数timeの値を各月の初日の0時からの積算時間に修正した。
     (前バージョンでは、1992年10月27日17:00からの積算時間であった。)

(2) 変数timeのattributeを以下のように修正した。
    
    time:units = "hours since 1992-10-27 17:00:00" 
                → "hours since 1992-10-01 00:00:00 +07:00" 

(3) global attribute ':History =  "Data version 1.0.1"'を追加した。

2. 新たに1日ごとのnetCDFファイルを追加した。
   時刻情報に関しては、各日の0時からの積算になっている。

===========================
バージョン1.0 (2011/06/19)
===========================

1. 1ヶ月毎のnetCDFデータをリリースした。