Notes on the dynasonde soundings on this disk (CD-TR049) Notes specific to this disk: ============================ Some heating campaigns March 2001, as well as UHF/VHF radar operation for CLUSTER, etc. The soundings from 16 March onwards are with the A300 driver, so 200-300 watts output, in spite of the Hp Tx status word sometimes indicating HV on etc. The HV power supply transformer failed. New one not delivered until June 2001 No IDI and meteor detection done since 16 March because of the lower Tx power. 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. ***********************************************************