An ‘Ionospheric Weather’ Index

1 COSMIC GPS Ionospheric Sensing and Space Weather

As our civilization becomes more dependent on space based technologies, we become more vulnerable to conditions in space weather. Accurate space weather specification and forecasting require proper modeling which account for the coupling between the sun, the magnetosphere, the thermosphere, the ionosphere and the mesosphere. In spite of the tremendous advances that have been made in understandi...

Implementation of Ionospheric Asymmetry Index in TRANSMIT Prototype

An Approach to Ionospheric Calibration

I am a low frequency radio astronomer, not an ionospheric physicist. Therefore, I struggle with the ionosphere and know about it only in the sense of “know thy enemy”. Much of what I say in this note is probably naive from the standpoint of ionospheric physics. Nevertheless, I hope that some of my suggestions may prove to be useful.

LOFAR as an ionospheric probe $

At the Low-Frequency Array (LOFAR)(Planet. Space Sci. (2004) these proceedings) frequencies (HF/VHF), extraterrestrial radiation experiences substantial propagation delay as it passes through the ionosphere. The adaptive calibration technique to be employed by LOFAR will use signals from many known bright radio sources in the sky to estimate and remove the effects of this delay. This technique ...

Real time monitoring for nowcasting and forecasting ionospheric space weather in Europe with ground digisondes

The Earth’s ionosphere largely determines space weather effects on radio wave communications, navigation and surveillance systems. Lately there has been an increasing demand for ionospheric nowcast and accurate forecast services by various groups of users, including European industry. The paper reviews research activities in Europe based on the exploitation of real-time ground digisondes for th...