Horizontal wind data in the mesosphere and lower thermosphere estimated from the meteor radar observations at Kototabang (netCDF format) Note: 1. The long_name of "num", number of observed meteors per hour", was incorrect in the older version (1.1.1 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 1.1.2. 2. The latest version number of the text and netCDF files is different, but the contents of both the data are the same. 3. SINCE TIME INFOMRTION OF ALL THE 1-MONTH NETCDF DATA WAS INCORRECT, WE MODIFIED TIME DATA AND REPLACED THEM WITH CORRECT ONES. PLEASE DO NOT USE THE WIND DATA DOWNLOADED FROM THIS HOMEPAGE BEFORE AUGUST 26, 2011 FOR ANY ANALYSES AND PUBLICATIONS. Description: The horizontal wind data in the mesosphere and lower thermosphere (70-110 km) estimated from the meteor wind radar observations at Kototabang, Indonesia (0.20S, 100.32E, 865m 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 Wk(year)(month).(resolution).nc or Wk(year)(month)(day).(resolution).nc. The resolution abbreviations are h2t60min00, h2t60min30, h4t60min00 and h4t60min30. 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 1.1.2 was released on February 2, 2012. In this version, we revised long_name of num variable in all the netCDF files. Please refer to the release note (Release_note_kototabang_netcdf_data.txt). Revision history: 13FEB2012 A. Shinbori : Updated metadata file for version 1.1.2. 13FEB2012 A. Shinbori : Released version 1.1.2. 18OCT2011 A. Shinbori : Updated metadata file for version 1.1.1. 18OCT2011 A. Shinbori : Released version 1.1.1. 29JUL2011 A. Shinbori : Updated metadata file for version 1.1. 29JUL2011 A. Shinbori : Released version 1.1. 14JUN2011 A. Shinbori : Updated metadata file. 13JUN2011 A. Shinbori : Released initial version.