Mesospheric temperature response to variations in geomagnetic activity
Temperature data collected over several years from rocket grenade and other experiments at Point Barrow (Alaska), Fort Churchill (Canada) and Wallops Island (Virginia) have been analysed to determine the effect of geomagnetic activity on the neutral temperature in the mesosphere and to study the lat...
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Elsevier Science
1973
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ftiiscindia:oai:eprints.iisc.ernet.in:23171 2023-05-15T15:39:40+02:00 Mesospheric temperature response to variations in geomagnetic activity Ramakrishnan, S Seshamani, R 1973-08 http://eprints.iisc.ernet.in/23171/ http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6T-479D7K0-K&_user=512776&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000025298&_version=1&_urlVersion=0&_userid=512776&md5=86eca1e5dd849899b7dffac9bf280a2d unknown Elsevier Science Ramakrishnan, S and Seshamani, R (1973) Mesospheric temperature response to variations in geomagnetic activity. In: Planetary and Space Science, 21 (8). pp. 1447-1453. Aerospace Engineering (Formerly Aeronautical Engineering) Journal Article PeerReviewed 1973 ftiiscindia 2014-09-27T17:40:56Z Temperature data collected over several years from rocket grenade and other experiments at Point Barrow (Alaska), Fort Churchill (Canada) and Wallops Island (Virginia) have been analysed to determine the effect of geomagnetic activity on the neutral temperature in the mesosphere and to study the latitudinal variation of this effect. An analysis carried out has revealed almost certainly significant correlations between the temperature and the geomagnetic indicies Kp and Ap at Fort Churchill and marginally significant correlations at Barrow and Wallops. This has also been substantiated by a linear regression analysis. The results indicate two types of interdependence between mesospheric temperature and geomagnetic field variations. The first type is the direct heating effect, during a geomagnetic disturbance, which has been observed in the present analysis with a time lag of 3–15 hr at the high latitudes and 36 hr at the middle latitudes. The magnitude of this heating effect has been found to decrease at the lower altitudes. The second type of interrelation which has been observed is temperature perturbations preceding geomagnetic field variations, both presumably caused by a disturbance in atmospheric circulation at these levels. Article in Journal/Newspaper Barrow Point Barrow Alaska Indian Institute of Science, Bangalore: ePrints@IIsc Canada Fort Churchill ENVELOPE(-94.079,-94.079,58.756,58.756) |
institution |
Open Polar |
collection |
Indian Institute of Science, Bangalore: ePrints@IIsc |
op_collection_id |
ftiiscindia |
language |
unknown |
topic |
Aerospace Engineering (Formerly Aeronautical Engineering) |
spellingShingle |
Aerospace Engineering (Formerly Aeronautical Engineering) Ramakrishnan, S Seshamani, R Mesospheric temperature response to variations in geomagnetic activity |
topic_facet |
Aerospace Engineering (Formerly Aeronautical Engineering) |
description |
Temperature data collected over several years from rocket grenade and other experiments at Point Barrow (Alaska), Fort Churchill (Canada) and Wallops Island (Virginia) have been analysed to determine the effect of geomagnetic activity on the neutral temperature in the mesosphere and to study the latitudinal variation of this effect. An analysis carried out has revealed almost certainly significant correlations between the temperature and the geomagnetic indicies Kp and Ap at Fort Churchill and marginally significant correlations at Barrow and Wallops. This has also been substantiated by a linear regression analysis. The results indicate two types of interdependence between mesospheric temperature and geomagnetic field variations. The first type is the direct heating effect, during a geomagnetic disturbance, which has been observed in the present analysis with a time lag of 3–15 hr at the high latitudes and 36 hr at the middle latitudes. The magnitude of this heating effect has been found to decrease at the lower altitudes. The second type of interrelation which has been observed is temperature perturbations preceding geomagnetic field variations, both presumably caused by a disturbance in atmospheric circulation at these levels. |
format |
Article in Journal/Newspaper |
author |
Ramakrishnan, S Seshamani, R |
author_facet |
Ramakrishnan, S Seshamani, R |
author_sort |
Ramakrishnan, S |
title |
Mesospheric temperature response to variations in geomagnetic activity |
title_short |
Mesospheric temperature response to variations in geomagnetic activity |
title_full |
Mesospheric temperature response to variations in geomagnetic activity |
title_fullStr |
Mesospheric temperature response to variations in geomagnetic activity |
title_full_unstemmed |
Mesospheric temperature response to variations in geomagnetic activity |
title_sort |
mesospheric temperature response to variations in geomagnetic activity |
publisher |
Elsevier Science |
publishDate |
1973 |
url |
http://eprints.iisc.ernet.in/23171/ http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6T-479D7K0-K&_user=512776&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000025298&_version=1&_urlVersion=0&_userid=512776&md5=86eca1e5dd849899b7dffac9bf280a2d |
long_lat |
ENVELOPE(-94.079,-94.079,58.756,58.756) |
geographic |
Canada Fort Churchill |
geographic_facet |
Canada Fort Churchill |
genre |
Barrow Point Barrow Alaska |
genre_facet |
Barrow Point Barrow Alaska |
op_relation |
Ramakrishnan, S and Seshamani, R (1973) Mesospheric temperature response to variations in geomagnetic activity. In: Planetary and Space Science, 21 (8). pp. 1447-1453. |
_version_ |
1766371699037569024 |