Kp, Ap, 10.7 cm flux etc
The CEDAR Database contains the 3-h Kp and ap indices, daily Ap,
sunspot numbers and 10.7 cm solar flux values, and 81 day average
10.7 cm solar flux averages from 1 January 1960 to
within about 6 months of the present. These can be obtained via the
CEDAR Database (click on 'Data Services', 'Get/plot data' and proceed
with 'Select an Instrument', 'Geophysical Indices from NGDC: Lenhart'
about 3rd page down after the IS radars).
The 81 day average 10.7 cm solar flux is calculated, but our
source for the other indices is the
World Data Center in Boulder
where one can get:
-
Sunspot numbers (1818-present)
-
10.7 cm (2800 MHz) daily solar flux (1947-present),
observed and adjusted to 1 A.U.
-
Kp, ap and other indices (1932-present). These indices include
Bartels solar rotation number, 3-h Kp, Kp sum, 3-h ap, daily Ap, Bartels solar rotation number,
CP and C9 indices, international sunspot number,
and 10.7 cm flux adjusted to 1 A.U.
The Kp and ap indices are also
defined.
-Revised 10 Nov 2006 by emery@ucar.edu