16 
yearb/tabs5_YY/: Directory containing tables wngYYmmm.e of hourly and daily mean 
values for the month mmm of the element e 
yearb/tabs6/tab6_YY.txt: Tables of indices 
yearb/longterm.pdf: Reprint of Schulz, 1998a 
progs/yearb.exe: Visualisation programme for hourly and daily mean values as well as 
one-minute values located in data/ 
progs/readme.txt: Notes concerning operation of the programme year.exe and the 
meaning of the parameters in year.ini 
progs/setup.bat: Installs the programme year under the local directory c:\year and starts 
the visualisation software 
1943, 1944, ..., 1999 data: 
data/: 
respectively 
Directory containing the data from 1943 on; YY means 43, 44, ..., 99, 
data/wlh+wng.yr: 
Zin nT) 
Updated epoch values WLH and WNG (D and / in O.T; F, H, X, Y, and 
data/wng.mon: 
X, Y, and Zin nT) 
Updated monthly mean values WNG (since 1943; Dand / in O.T; F, H, 
data/wng.day: 
Y, and Zin nT) 
Updated daily mean values WNG (since 1943; Dand / in O.T; F, H, X, 
data/wng.k: 
Updated indices WNG (since 1944) 
data/wng.qd: 
International quiet (0) and disturbed (D) days used 
data/19YY/: 
Directory containing the following data 
wngYY.yr: 
Epoch values (Dand / in O.T; F, H, X, Y, and Zin nT) 
wngYY.mon: 
Monthly mean values (D and I in O.T; F, H, X, Y and Z in nT) 
wngYY.day: 
Daily mean values (D and I in O.T; F, H, X, Y and Z in nT) 
wngYY.hr: 
Hourly mean values in the format WDC (ICSU, 1989) 
wngYY.k: Activity figures K, Ak, Ck, and Cas well as monthly and annual mean 
values of Ak, Ck, and C 
hourYY/wngYYmmm.e: Hourly and daily mean values for the month mmm of the element e in 
tabular form 
yeab.exe input files: 
hourYY/wngYYmmm.wdc: Hourly mean values of the month mmm in the format WDC (ICSU, 
1989)