Notes on the dynasonde soundings on this disk (CD-TR031)

Notes specific to this disk:
============================

On November 17, (Leonids meteor shower) P-modes were
run at 4.04 MHz (so-called IDI-mode) between 10 UT on
17 Nov and 10 UT on 18 Nov, synchronous with EISCAT
UHF and VHF radar measurements. These soundings,
from TR002565.P_G to TR002804.P_G (601 MB) are recorded
to a separate CD-ROM CDTR030B (2 copies), not in this series.

In November 1998 there were several Heating campaigns.


General notes:
==============

The data are from the Tromso dynasonde.

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.

Before up to CD-TR030 they are numbered and catalogued as I or B-mode. 
From CD-TR031 they are listed both as (I- and P-mode) or (B- and P-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).