Developments in the use of EISCAT for interplanetary scintillation
The antennas of EISCAT have been used for interplanetary scintillation (IPS) studies of the solar wind for many years. The main science found from these studies is obtained through the cross-correlation of signals from antennas having the longest baseline, providing more accurate information on the...
Published in: | Annales Geophysicae |
---|---|
Main Authors: | , , |
Format: | Text |
Language: | English |
Published: |
2018
|
Subjects: | |
Online Access: | https://doi.org/10.5194/angeo-26-2229-2008 https://angeo.copernicus.org/articles/26/2229/2008/ |
id |
ftcopernicus:oai:publications.copernicus.org:angeo36481 |
---|---|
record_format |
openpolar |
spelling |
ftcopernicus:oai:publications.copernicus.org:angeo36481 2023-05-15T16:04:10+02:00 Developments in the use of EISCAT for interplanetary scintillation Fallows, R. A. Breen, A. R. Dorrian, G. D. 2018-09-27 application/pdf https://doi.org/10.5194/angeo-26-2229-2008 https://angeo.copernicus.org/articles/26/2229/2008/ eng eng doi:10.5194/angeo-26-2229-2008 https://angeo.copernicus.org/articles/26/2229/2008/ eISSN: 1432-0576 Text 2018 ftcopernicus https://doi.org/10.5194/angeo-26-2229-2008 2020-07-20T16:26:51Z The antennas of EISCAT have been used for interplanetary scintillation (IPS) studies of the solar wind for many years. The main science found from these studies is obtained through the cross-correlation of signals from antennas having the longest baseline, providing more accurate information on the different solar wind streams which may be present in the line of sight. The development of dual-frequency IPS observations between the 1.4 GHz receivers at the remote sites and Tromsø, has allowed the use of the EISCAT Svalbard Radar for IPS, increasing the available baselines to the extent that three solar wind streams can sometimes be identified in the cross-correlation functions. A weak-scattering model incorporating three possible solar wind streams and dual observing frequencies is discussed and some results presented. A recent study found that the current sampling bandwidth limits the sensitivity of IPS observations at EISCAT. Methods of increasing the sensitivity, and the results of trials, are discussed. Text EISCAT Svalbard Tromsø Copernicus Publications: E-Journals Svalbard Tromsø Annales Geophysicae 26 8 2229 2236 |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
The antennas of EISCAT have been used for interplanetary scintillation (IPS) studies of the solar wind for many years. The main science found from these studies is obtained through the cross-correlation of signals from antennas having the longest baseline, providing more accurate information on the different solar wind streams which may be present in the line of sight. The development of dual-frequency IPS observations between the 1.4 GHz receivers at the remote sites and Tromsø, has allowed the use of the EISCAT Svalbard Radar for IPS, increasing the available baselines to the extent that three solar wind streams can sometimes be identified in the cross-correlation functions. A weak-scattering model incorporating three possible solar wind streams and dual observing frequencies is discussed and some results presented. A recent study found that the current sampling bandwidth limits the sensitivity of IPS observations at EISCAT. Methods of increasing the sensitivity, and the results of trials, are discussed. |
format |
Text |
author |
Fallows, R. A. Breen, A. R. Dorrian, G. D. |
spellingShingle |
Fallows, R. A. Breen, A. R. Dorrian, G. D. Developments in the use of EISCAT for interplanetary scintillation |
author_facet |
Fallows, R. A. Breen, A. R. Dorrian, G. D. |
author_sort |
Fallows, R. A. |
title |
Developments in the use of EISCAT for interplanetary scintillation |
title_short |
Developments in the use of EISCAT for interplanetary scintillation |
title_full |
Developments in the use of EISCAT for interplanetary scintillation |
title_fullStr |
Developments in the use of EISCAT for interplanetary scintillation |
title_full_unstemmed |
Developments in the use of EISCAT for interplanetary scintillation |
title_sort |
developments in the use of eiscat for interplanetary scintillation |
publishDate |
2018 |
url |
https://doi.org/10.5194/angeo-26-2229-2008 https://angeo.copernicus.org/articles/26/2229/2008/ |
geographic |
Svalbard Tromsø |
geographic_facet |
Svalbard Tromsø |
genre |
EISCAT Svalbard Tromsø |
genre_facet |
EISCAT Svalbard Tromsø |
op_source |
eISSN: 1432-0576 |
op_relation |
doi:10.5194/angeo-26-2229-2008 https://angeo.copernicus.org/articles/26/2229/2008/ |
op_doi |
https://doi.org/10.5194/angeo-26-2229-2008 |
container_title |
Annales Geophysicae |
container_volume |
26 |
container_issue |
8 |
container_start_page |
2229 |
op_container_end_page |
2236 |
_version_ |
1766399868204482560 |