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Ionospheric  Data ::...

:::: Introduction :

India now has an impressive chain of Ionosonde (see Table 1 below) covering almost the entire country starting from geomagnetic equator to about 20N geomagnetic latitude. The latest to join this chain is the Modern Digital Ionosonde installed during July 2000 at New Delhi in the campus of National Physical Laboratory. 

This chain also covers the equatorial ionization anomaly region in the Indian sector and provides data critical to long term planning as well as for short-term frequency updates for HF links operating in the country. The data from this ionosonde network is also being used in a number of nationally coordinated research programs to study the equatorial ionospheric dynamics.
 
:::: Solar Cycle :
Ionosonde Stations
Latitude Geographic(degrees)
Longitude Geographic(degrees)
Latitude Geomagnetic(degrees)
Latitude Magnetic(degrees)
Magnetic Dip(Degrees)
Delhi28. 6 N77. 2 E19.2 N24.8 N42.4 N
Ahmedabad23.0 N72. 6 E14.0 N18.8 N34.0 N
Waltair17.7 N83.3 E6.4 N10.0 N20.0 N
Kodaikanal10.2 N77.5 E0.75 N1.75 N3.5 N
Tiruvananthapuram8.6 N76. 9 E0. 63 S0.3 N0.6 S
Table 1. Geographic and geomagnetic locations of ionosonde stations in India.
:::: Note :
For Further Details, Kindly Contact Dr. A.K Upadhayaya .
 
       2003 Data Centre, Centre for Global Change, National Physical Laboratory, Dr. K.S. Krishnan Marg, New Delhi-12, India.