Notes on the dynasonde soundings on this disk (CD-TR039) Notes specific to this disk: ============================ The data on this disk is from only a few days centred on the Leonids meteor shower from 16 to 18 Nov 1999. In this and in the associated limited edition disks named CDTR039B, CDTR039C etc. there are 4-pulse TR*.BPG files recorded (2 per hour) which were interspersed between ordinary 8-pulse TR*.B_G soundings (2 per hour). The "missing" data on this disk are mainly *.BPG files which are on the supplementary disks. A few files did actually go missing in the data shuffle between various hard disks. The CDTR039B etc. disks contain only the *BPG files which are probably of specialised interest to only a few. In addition TR*.P_G files were made at 7.953 MHz using the Heater as transmitter for the dynasonde. The approximately 12GB of data collected in this way were only recorded to tape at the time of writing. The latest versions of datmovie, echoplot, datbrows, and dataplot are in the file datmovie.zip ---------------------------------------------------------- General notes: ============== The data are from the Tromso dynasonde. Sounding raw data ================= The soundings are stored in directories according to the month of recording. In some cases the soundings for a month are spread over more than one directory e.g. DEC1994a and DEC1994B. In the listings of soundings (files with extension .DIR) the dates and times were read from the soundings and should be as accurate as the dynasonde PC clock at the time of data taking. A few files which show a date as 19700101 have a corrupted time/date. The soundings are listed according to type in files B-MODES.DIR, I-MODES.DIR, K-MODES.DIR, P-MODES.DIR, as well as a total listing in LIST-ALL.DIR Note that P-mode soundings that raw data soundings of type I- or B-mode, although also "P-mode" are usually named *.IPG or *.BPG and are numbered and catalogued as I or B-mode. The CALIBS.DIR shows where calibration soundings (with file extension NOT *.?_? , usually of type *.?r?) are stored. The GAPS-x.TXT files show missing soundings (or repeated sounding numbers) for the four various modes of sounding (b,i,k,p). IDI data ======== The results from the IDI ("Imaging Doppler Interferometry") soundings are included. Since 2 May 1999, this mode has been running between interspersed between the B-mode soundings. The original P-mode soundings on which they are based are not recorded, nor are the P-mode sounding numbers incremented. The results, together with some analysis/potting IDL scripts are in the directory IDI_RSLT. A byproduct of these soundings are possible meteor echoes. They are recoded in the directory METEORS together with some IDL plotting scripts. The software running in Tromso is an implementation of that written by Owen Jones of BAS for use at Halley Bay. Information on the IDI technique is found in notes in the file idi_note.wpd. In brief: the yyyymmdd.ivb file is the day's results in binary file format. The yymmddbn.zip files contain the individual day's "parameter files" in binary format. There are some IDL scripts which can handle these data. ***********************************************************