Introduction
N. Gopalswamy and A. Bhattacharyya ....................................................................................................................ix
Historical
perspective and research centres in India in the fields of solar astronomy
G. Swarup
(Inaugural address) ..................................................................................................................................xi
Solar influences on lower atmosphere - nagging uncertainities
B. M. Reddy (Keynote address) ...............................................................................................................................xiv
Summary of sessions: Solar and
Heliospheric Working Group
J. T. Hoeksema .........................................................................................................................................................1
Summary of sessions: Magnetospheric
Working Group
A. S. Sharma and J. U. Kozyra
.................................................................................................................................3
Summary of sessions:
Ionosphere-Thermosphere-Mesosphere Working Group
J. F. Spann and A. Bhattacharyya ............................................................................................................................9
Panel discussion: ILWS Panel Discussion
on Future Collaborations
J. F. Spann and R. Sridharan
..................................................................................................................................13
Solar and Heliosphere
Recent advances in helioseismic predictors of
space weather
F. Hill .......................................................................................................................................................................15
Influence of magnetic field on the Doppler
measurements of velocity field in the solar photosphere
and implications for helioseismology
S. P. Rajaguru, R. Wachter and S. S. Hasan
............................................................................................................21
Linear simulations of acoustic wave
propagation in a sun-like spherical shell
S. M. Hanasoge ........................................................................................................................................................27
.
Theoretical model for calculation of helicity in solar active regions
P. Chatterjee ...........................................................................................................................................................30
Helicity observation of weak and strong fields
M. Zhang .................................................................................................................................................................34
B. N. Dwivedi ...........................................................................................................................................................39
Solar flare imaging in X-rays and g-rays
Solar X-ray Spectrometer (SOXS) mission: Observations and new results
R. Jain, N. J. Bhatt and L. Bharti .............................................................................................................................54
Effects of sunspot umbral rotation in
the onset of flares
K. Sundara Raman ...................................................................................................................................................61
Large scale solar chromospheric
eruptive activity - a signature of magnetic reconnection
K. S.
Balasubramaniam, A. A. Pevtsov, D. F. Neidig and R. A. Hock.....................................................................65
Coronal mass ejections and space weather
D. F. Webb and
Coronal mass ejections and space weather
due to extreme events
N. Gopalswamy, S. Yashiro
and
The search for a causal link between CMEs and
large flares
G. M. Simnett ...........................................................................................................................................................85
Role of ambient solar wind conditions in CME
evolution
R. M. Jadav and K. N.
Iyer ......................................................................................................................................89
Characteristic features of coronal mass
ejections and their effect on geomagnetosphere
A. P. Mishra and R.
Tripathi ....................................................................................................................................91
Occurrence of severe geomagnetic storms and
their association with solar–interplanetary features
R. Tripathi and A. P.
Mishra ....................................................................................................................................95
Velocity scaling and coupling of prominences and coronal mass ejections
I. S.Veselovsky .........................................................................................................................................................99
How good is the prediction of space
weather based on solar and interplanetary properties?
Calculation of RF emission brightness temperature
of high density plasmas clouds
in Sun-terrestrial interplanetary space
W. Sun and J. Wu ...................................................................................................................................................107
Coronal origins of the solar wind - sources of
steady streams and transient flows
caused by solar magnetic eruptions
Magnetic cloud events during 2005 and their geoeffectiveness
G. Rajaram, A. C. Reddy, R. Alyana, J. Rathod, D. S. Misra, C. G. Patil, M. Y. S. Prasad and A. G. Ananth
........................................................................................................................................................................119
Three-dimensional time-dependent MHD simulation model of the solar corona and solar wind
K. Hayashi ..............................................................................................................................................................124
2D MHD model of the solar corona and solar
wind: Recent results
E. C. Sittler Jr. and L. Ofman
................................................................................................................................128
Locating the solar source of the extremely
low-density, low-velocity solar wind flows of 11 May 1999
P. Janardhan, K. Fujiki, M. Kojima and M. Tokumaru ........................................................................................132
..
Planetary X-rays: Relationship with solar
X-rays and solar wind
A. Bhardwaj ...........................................................................................................................................................140
The EUV Variability Experiment (EVE) on the solar dynamics
observatory (SDO)
: Science
plans and instrument overview
T. N. Woods, J. L. Lean and F. G. Eparvier ..........................................................................................................145
Flare Irradiance Spectral Model (FISM) use
for space weather applications
P. C. Chamberlin, T.
N. Woods and F. G. Eparvier ..............................................................................................153
Unraveling long-term solar variability and its
impact on space climate: The stars as suns project
D. Nandy and P. C. H.
Martens .............................................................................................................................158
Long-term variations of the green coronal
(530.3 nm) irradiance
V. Rušin, M.
Minarovjech, M. Saniga and Ľ. Klocok .............................................................................................165
Periodicities in solar activity and their signature in the terrestrial environment
S. R. Prabhakaran Nayar .......................................................................................................................................170
Influence of solar activity on the rainfall
over India
K. M. Hiremath ......................................................................................................................................................178
Study of short-term modulation of galactic
cosmic rays: A new approach
Badruddin and Y. P.
Singh
......................................................................................................................182
Long term variability of heliopause due to
changing conditions in local interstellar medium
M. N.Vahia .............................................................................................................................................................189
Solar
Orbiter: A mission update
R. G. Marsden, N.
Rando, A. Owens, A. Jeanes and A. Lyngvi .............................................................................196
G. Thuillier and J.
-Y. Prado ..................................................................................................................................200
Solar probe mission: close encounter with the sun
E. C. Sittler Jr., D. J. McComas and R. L. McNutt Jr. and the STDT Team .........................................................204
A brief introduction to SMESE mission
C. Wang, C. Fang, W. Gan , J.-Y. Prado, G. Trottet,
J.-C. Vial , Y. Yan, F. Auchere,
J. Chang and G. Molodi........................................................................................................................................211
Solar polar orbit radio telescope for space
weather forecast
J. Wu, C. Wang, S.
Wang, J. Wu, W. Sun, J. Cai and Y. Yan .................................................................................215
Space
weather activities in Europe
R. F.
Wimmer-Schweingruber
................................................................................................................................219
C. A. Young, J. B.
Gurman, G. Dimitoglou, J. Hourcle, R. S. Bogart, K. Tian, F. Hill,
I. Suarz-Sola,
Preparing for the International Heliophysical
Year (IHY) 2007
J. M. Davila, N.
Gopalswamy and B. J. Thompson ...............................................................................................231
Magnetosphere
Multiple flare occurrences and
the geomagnetic storm characteristics during solar cycle 23
S. Alex, S. Mukherjee and B. M. Pathan ...............................................................................................................237
Non-radial solar wind flows and geomagnetic activity changes during 1973-2003
B. F. Pereira and T. E. Girish ................................................................................................................................242
Storm time magnetic field variations at low latitude and its association with solar wind parameters
G. Vichare and S. Alex ..........................................................................................................................................245
Penetration of interplanetary
electric field to the equatorial F region
during the magnetic storm on November 20, 2003
C. V. Sreehari and S.
R. Prabhakaran Nayar.........................................................................................................249
Low latitude geomagnetic signatures following
two major solar energetic particle events
at different phases of solar cycle-23
R. Rawat, S. Alex and
G. S. Lakhina ......................................................................................................................253
Extended period of low density solar wind - ground geomagnetic signatures
B. M. Pathan, A. Dhar, A. Hanchinal and C. Selvaraj ..........................................................................................258
Main features of the IMF sector structure during 23 circle of solar activity
A. N. Zaitzev and V.
I. Odintsov ............................................................................................................................262
ICME and CIR storms with particular
emphasis on HILDCAA events
F. L.
Guarnieri, B. T. Tsurutani, W. D. Gonzalez, A. L. C. Gonzalez, M. Grande,
F. Soraas and
A review of recent observations of
relativistic electron energization
in the Earth's outer Van Allen radiation
belt
S. G. Kanekal .........................................................................................................................................................274
Use of pitch angle dependence of flux
oscillations as a diagnostic tool
for determining the spatial structure of
oscillations
R. Rajaram ..............................................................................................................................................................280
Effect of pressure pulse on
geomagnetic field oscillations
A. K. Sinha and R. Rajaram ...................................................................................................................................284
Solar
wind velocity and its control on low latitude Pc3 geomagnetic pulsations
I. A. Ansari .............................................................................................................................................................289
Modulational instability of electron-acoustic waves in the auroral region
S. V. Singh, R. V. Reddy and G. S. Lakhina ...........................................................................................................293
Nonlinear
evolution of Alfvén waves and particle acceleration in
space
R. P. Sharma, H. D.
Singh and M. Malik
...............................................................................................................297
Mapping of poynting flux of dispersive Alfvén waves
A. P. Kakad, S. V. Singh, R. V. Reddy and G. S. Lakhina .....................................................................................306
Surface waves induced magnetic reconnection and quantification of space weather phenomena
C. Uberoi ...............................................................................................................................................................310
Thinning of current sheets and magnetic reconnection
N. Singh and C. Deverapalli ..................................................................................................................................315
On magnetic storms and substorms
G. S. Lakhina, S.
Alex, S. Mukherjee and G. Vichare ...........................................................................................320
Investigation of substorms during geomagnetic storms using wavelet techniques
S. R. Prabhakaran
Nayar, V. N. Radhika and P. T. Seena.....................................................................................328
The geomagnetic storm-time response to
different solar wind driving conditions
C. R. Clauer ...........................................................................................................................................................332
Global and multiscale features of the
magnetosphere: data-derived and global MHD modeling
A. S. Sharma ..........................................................................................................................................................340
Canadian radiation
belt science in the ILWS era
I. R. Mann ..............................................................................................................................................................348
On the relationship between
interplanetary magnetic field and cosmic ray flux over Antarctica
R. Selvamurugan and D. N. Rao ............................................................................................................................356
Ionosphere-Thermosphere-Mesosphere
Effect
of magnetic storms and substorms on the low- latitude/ equatorial ionosphere
J. H. Sastri ..............................................................................................................................................................361
The thermospheric response to geomagnetic
storms
H. Lühr and H. Liu .................................................................................................................................................369
Low latitude topside ionospheric response to
magnetic storms from in-situ satellite measurements
D. R. Lakshmi..........................................................................................................................................................376
The
Dayside Ionospheric gSuperfountainh (DIS), plasma transport and other
consequences
B. T. Tsurutani, A.
Saito, O. P. Verkhoglyadova, A. J. Mannucci, M. A. Abdu, T. Araki, W. D.
Gonzalez,
B. A. Iijima, G. S.
Lakhina, H. McCreadie, J. H. A. Sobral, T. Tsuda, K. Yumoto and V. M.
Vasyliunas
.............................................................................................................................................................
384
in the Peruvian, Philippine and Indian longitude sectors under quiet and disturbed conditions
D. Anderson, A. Anghel,
J. Chau, K. Yumoto, A. Bhattacharyya and S. Alex .......................................................389
Space weather effects on low latitude geomagnetic field and ionospheric plasma response
B. Veenadhari and S. Alex .....................................................................................................................................395
MAGDAS project and its application for space weather
K. Yumoto and the MAGDAS Group .....................................................................................................................399
The role of postsunset vertical drifts at the
equator in predicting the onset of VHF scintillations
during high and low sunspot activity years
P. V. S. Rama Rao, S. Tulasi Ram, K. Niranjan and D. S. V. V. D. Prasad
...........................................................406
Prediction of post-sunset ESF based on the
strength and asymmetry of EIA
from ground based TEC measurements
S. V. Thampi, S.
Ravindran, C. V. Devasia, T. K. Pant, P. Sreelatha and
R. Sridharan ......................................414
Long-term control of solar activity on
equatorial scintillations
A. DasGupta ..........................................................................................................................................................418
Effect of solar variability on transionospheric
radio wave propagation in the equatorial region
A. Bhattacharyya, B.
Engavale, D. Tiwari and
Effect of magnetic activity on equatorial F
region plasma drifts
B. Engavale, K.
Jeeva, K. U. Nair and A. Bhattacharyya .....................................................................................432
Tidal oscillations in the MLT
region over Trivandrum (8N, 77E)
–results from SKiYMET meteor radar
observations
V. Deepa, G.
Ramkumar, M. Antonita, K. K. Kumar and M. N. Sasi ....................................................................436
.
Meteor radar observations of solar tides and
planetary waves interaction in the MLT region
K. K. Kumar, V. Deepa, T. M. Antonita and G. Ramkumar ..................................................................................440
Does solar variability affect Indian
(Tropical) weather and climate? : An assessment
Badruddin, Y. P.
Singh and M. Singh
.....................................................................................................................444
The atmosphere-space interactions monitor
(ASIM) for the international space station
T. Neubert, I.
Kuvvetli, C. Budtz-Jørgensen, N. Østgaard, V. Reglero and N. Arnold .........................................448
Author Index .........................................................................................................................................................452
