Conversion Tables for Kp Observatories

From K to Ks

 

There is a pronounced diurnal variation in the K index at a single station, with intervals close to local midnight being substantially more disturbed in comparison with those centered on local noon. This diurnal variation also exhibits seasonal and latitudinal dependence. Mere averaging of the logarithm of activity was therefore not considered proper unless the stations were densely and evenly distributed over the world. To overcome this, a standardization procedure was developed by J. Bartels for assigning to each K value a standardized alternate - designated by Ks - which could be more refined than K in the sense that it is given in thirds.

The present conversion tables for three seasons have been prepared using selected data from 1943 to 1948 (except Niemegk). The three seasons are:

 

JFND

The months around winter solstice: January, February, November and December.

MASO

The months around the equinoxes: March, April, September and October.

MJJA

The months around summer solstice: May, June, July and August.

 

Conversion Tables

MEA Meanook

SIT Sitka

LER Lerwick

ESK Eskdalemuir

UPS Uppsala

LOV Lovö

BFE Brorfelde

RSV Rude Skov

WNG Wingst

WIT Witteveen

HAD Hartland

ABN Abinger

OTT Ottawa

AGN Agincourt

FRD Fredericksburg

CLH Cheltenham

EYR Eyrewell

AML Amberley

CNB Canberra

TOO Toolangi

NGK Niemegk

Contact

Profile photo of  Dr. Jürgen Matzka

Dr. Jürgen Matzka
Geomagnetism

Lindenstr. 7
Building H 1, room 101
14823 Niemegk
tel. +49 33843 624-18

Contact

Profile photo of  Prof. Dr. Claudia Stolle

Prof. Dr. Claudia Stolle
Geomagnetism

Behlertstraße 3a
Building K 3, room 006
14467 Potsdam
tel. +49 331 288-1230