Indian Journal of Radio & Space Physics

CODEN: IJRSAK        ISSN: 0367-8393 (print); 0975-105X (online)

http://www.niscair.res.in; http://nopr.niscair.res.in

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VOLUME 41

NUMBER 2

APRIL 2012

 

Special issue: Low-latitude upper atmosphere-ionosphere-plasmasphere system in a record low solar minimum in Asian sector

 

Cover & Title Page

CONTENTS

 

 

 

Preface


77

 

 

        N Balan, A K Patra & T K Pant

 

Secular changes in the solar terrestrial conditions observed during sunspot minima: Some implications for the earth’s ionosphere

83

        T E Girish* & G Gopkumar

 

 

 

Behaviour of the low-latitude ionosphere-plasmasphere system at long deep solar minimum

89

        N Balan*, C Y Chen, J Y Liu & G J Bailey

 

 

 

COSMIC observations of ionospheric density profiles over Indian region: Ionospheric conditions during extremely low solar activity period

98

        S Sripathi

 

 

 

Solar EUV flux (0.1-50 nm), F10.7 cm flux, sunspot number and the total electron content in the crest region of equatorial ionization anomaly during the deep minimum between solar cycle 23 and 24

110

        D Chakrabarty*, Mala S Bagiya, Smitha V Thampi & K N Iyer

 

 

 

Contrasting features of the F3 layer during high and low solar activity conditions observed from Indian low-latitude

121

        P Pavan Chaitanya*, A K Patra & S V B Rao

 

 

 

On the variability of the observed HF Doppler derived equatorial F-region plasma drifts during evening and morning hours and the chemical corrections therein

130

        S G Sumod*, T K Pant & S R P Nayar

 

 

 

Effect of solar flares on ionospheric TEC at Varanasi, near EIA crest, during solar minimum period

141

        Sanjay Kumar & A K Singh*

 

 

 

Airglow observation over equatorial and low-latitudes in the extreme solar minimum of 2007-2008

148

        P K Rajesh*, J Y Liu, C H Lin, A B Chen, R R Hsu & H T Su

 

 

 

Nightglow observations of OI 630 nm emission during the beginning of Solar cycle 24 over 25°N, India

155

        Navin Parihar$,*, B A Kakad & G K Mukherjee

 

 

Radio Beacon for Ionospheric Tomography (RaBIT) onboard YOUTHSAT: Preliminary results

162

        T K Pant*, P Sreelatha, N Mridula, S Trivedi, R M Das, S Koli, R Sharma, J Girija, Arun Alex, K K Mukundan, S B Shukla, P Purushottaman, J N Santosh, Biju Thomas, M Srikant, R Sridharan, K Krishnamoorthy, Ratan Bisht, D V A Raghavamurthy, M P T Chamy & J D Rao

 

 

 

Equatorial spread F development and quiet time variability under solar minimum conditions

168

        M A Abdu

 

 

 

Equinoctial and June solstitial F-region irregularities over Sanya

184

        Guozhu Li*, Baiqi Ning, Libo Liu, Weixing Wan, Lianhuan Hu, Biqiang Zhao & A K Patra

 

 

 

VHF radar observations of post-midnight F-region field-aligned irregularities over Indonesia during solar minimum

199

        Y Otsuka*, K Shiokawa, M Nishioka & Effendy

 

 

 

Equatorial F-region irregularities during low and high solar activity conditions

208

        L M Joshi*, A K Patra & S V B Rao

 

 

 

Multi-instrument observations of winter solstice F-region irregularities during the low solar activity

220

        N Dashora*, A Taori & A K Patra

 

 

 

Evolution of plasma bubbles over Vietnam region observed using the CERTO beacon on board C/NOFS satellite

233

        Smitha V Thampi* & Mamoru Yamamoto

 

 

 

Equinoctial asymmetry in the occurrence of equatorial spread F over Indian longitudes during moderate to low solar activity period 2004-2007

240

        G Manju*, M K Madhav Haridas, Sudha Ravindran, Tarun Kumar Pant & S Tulasi Ram

 

 

 

Impact of equatorial ionospheric irregularities on transionospheric satellite links observed from a low latitude station during the minima of solar cycle 24

247

        T Das, B Roy, A DasGupta & A Paul*

 

 

 

Enhanced gravity wave activity over the equatorial MLT region during counter electrojet events

258

        C Vineeth*, T K Pant & M M Hossain

 

 

 

On the linkage between mesospheric gravity waves and occurrence of equatorial plasma bubble observed during the low solar activity

264

        A Taori*, V Kamalakar, L M Joshi, S Sripathi & A K Patra

 

 

 

Planetary wave coupling of the mesosphere-lower thermosphere-ionosphere (MLTI) region during deep solar minimum 2005-2008

271

        R Dhanya*, S Gurubaran & S Sathishkumar

 

 

 

Sporadic E over Allahabad during the extremely prolonged low solar activity period of 2007-2009

285

        P Tiwari, D Tiwari*, G Surve & C Nayak

 

 

Corotating interaction regions (CIRs) at sub-harmonic solar rotational periods and their impact on ionosphere-thermosphere system during the extreme low solar activity year 2008

294

        S Tulasi Ram*, M Yamamoto, B Veenadhari, Sandeep Kumar & S Gurubaran

 

 

 

Corotating interaction region (CIR) induced magnetic storms during solar minimum and their effects on low latitude geomagnetic field and ionosphere

306

        B Veenadhari*, Sandeep Kumar, S Tulasi Ram, Rajesh Singh, S Alex

 

 

 

 

__________

 

*Authors for correspondence