Horizontal wind data in the mesosphere and lower thermosphere estimated from the meteor wind radar observations at Serpong (netCDF format) Note: 1. The long_name of "num", number of observed meteors per hour, was incorrect in the older version (1.0.1 and earlier) of netCDF data. The variable is not hourly rate but total number of meteors in a time and height bin (e.g., +/-2 km and +/- 60 minutes for h2t60). The data itself is not wrong. Please do not misunderstand the meaning of the number of meteors when you use this data for any analyses and interpretations of meteor distribution. The long_name has been fixed in version 1.0.2. 2. The latest version number of the text and netCDF files is different, but the contents of both the data are the same. Description: 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, the h2t60 means weighted average of the horizontal wind with Gaussian factors over +/-2 km in height and +/-60 minutes in time. In this case, the number of meteors stands for that of data points included in the height and time window. The min00 shows that the center of the Gaussian window corresponds to 00 minute of every hour. The intervals of the wind data are every 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 meteors. Details are described in the metadata. Data revision: Data version 1.0.2 was released on February 2, 2012. In this version, we revised several attributes for all the netCDF files. Please refer to the release note (Release_note_serpong_netcdf_data.txt). Revision history: 13FEB2012 A. Shinbori : Updated metadata file for version 1.0.2. 13FEB2012 A. Shinbori : Version 1.0.2. 22SEP2011 A. Shinbori : Updated metadata file for version 1.0.1. 22SEP2011 A. Shinbori : Version 1.0.1. 19JUN2011 A. Shinbori : Updated metadata file. 19JUN2011 A. Shinbori : Initial version.