CEDAR email: ISEA-15: Abstract Submission now open
raju at prl.res.in
Wed Apr 18 11:23:35 MDT 2018
The International Symposium on Equatorial Aeronomy (ISEA) is held once
in every three to four years. Researchers from the fields of
atmosphere, ionosphere and magnetosphere gather together in ISEA to
share new findings, discuss the current status, and identify topics
for future research. The 15th International Symposium on Equatorial
Aeronomy (ISEA-15) will be held during 22 - 26 October 2018 at
Physical Research Laboratory, Ahmedabad, India.
Abstract submission for ISEA-15 is now open. There are seven science
sessions in ISEA-15 (description given below). For more details and
abstract submission please visit the Symposium Website:
Abstract submission ends: 31 May 2018 (for those requesting financial
support) & 10 June 2018 (for all others).
We hope to have an exciting ISEA-15 meeting. Please join us !!
Scientific Organizing Committee:
Duggirala Pallamraju, Endawoke Yizengaw, Jonathan Makela, Philip
Erickson, Claudia Stolle, Marco Milla, Clezio De Nardin, Mamoru Yamamoto
Email: isea15 at prl.res.in
Session 1 : Equatorial E- and F-region irregularities: Cause and effects
Conveners : Amit K. Patra, NARL, India ; Fabiano Rodrigues, UTD, USA
MSO : Jonathan J. Makela, UI, USA.
This session covers contributions related to fundamental and applied
aspects of E- and F-region ionospheric irregularities occurring at
equatorial and low latitudes. The session welcomes, in particular,
presentations related to studies of ionospheric irregularities
associated with the equatorial electrojet, valley region, 150-km
echoes, and those associated with equatorial spread F events during
geomagnetically quiet and/or disturbed conditions. Presentations
related to experimental investigations of the conditions leading to
the genesis, development and decay of ionospheric irregularities using
ground- and space-based instrumentation are invited. Contributions
describing current efforts associated with ongoing and upcoming rocket
campaigns, cubesats and new ground-based instruments are encouraged.
Finally, the session also welcomes contributions describing new
results of numerical modeling efforts towards a better description of
ionospheric irregularities, and presentations related to studies of
the effects of the turbulent equatorial ionosphere on various
applications (GNSS, IRNSS, OTH radars, remote sensing, etc.).
Session 2 : Longitudinal dependence of equatorial electrodynamics
Conveners : Larisa P. Goncharenko, MIT Haystack Observatory, USA ;
Geeta Vichare, IIG, India
MSO : Endawoke Yizengaw, BC, USA.
Analysis of longitudinal differences in thermospheric and ionospheric
parameters can illuminate variety of mechanisms responsible for upper
atmospheric variability as well as the drivers of longitudinal
differences in scintillations. Recent advances in networks of
distributed instruments provide new evidence of longitudinal
differences on a large variety of spatial and temporal scales. The
main focus of this session is to examine new evidence of longitudinal
variations in equatorial and low-latitude electrodynamics
(drift/electrojet, neutral wind, and gravity waves and tides) as well
as thermospheric and ionospheric parameters on time scales from hours
to decades and spatial scales from few degrees to the entire globe.
The observations during geomagnetic quiet as well as disturbed times
are solicited. This session invites contributions that discuss
space-borne and ground-based observations, and theory/modeling of the
mechanisms responsible for the longitudinal dependence of equatorial
and low-latitude ionosphere.
Session 3 : Mesosphere Ionosphere Thermosphere coupling at low- and
Conveners : Kazuo Shiokawa, ISEE, Japan ; Sundararajan Sridharan, NARL, India
MSO : Philip J. Erickson, MIT Haystack Observatory, USA.
Coupling of the mesosphere, ionosphere, and thermosphere (MIT) is a
key science issue in the Earth’s upper atmosphere. During geomagnetic
quiet times, the coupling mainly occurs though wave motions of various
time and spatial scales ranging from sound waves, gravity waves,
tides, to planetary waves. This coupling contributes to mesospheric
oscillations, thermospheric midnight temperature maximum and
ionospheric variabilities, namely, electrojet strength, electron
density, sporadic E, equatorial ionization anomaly, and spread F, etc.
It is also interesting to see how the
dynamics/electrodynamics/composition of this coupled system varies in
response to the prompt penetration and disturbance dynamo electric
fields caused by the storms. The ionospheric plasmas can also affect
dynamics of the thermosphere through the ion drag. These coupling
processes also affect the variability of MLT over long-term and show
trends with respect to solar activity. In this session, we focus on
these various topics related to the mesosphere-ionosphere-thermosphere
coupling at low- and mid-latitudes during quiet and disturbed times.
We welcome results obtained from recent satellite measurements,
ground-based instruments, as well as recent global and regional
Session 4 : Mid- and low-latitude effects of global atmospheric wave coupling
Conveners : Subramanian Gurubaran, IIG, India ; Erdal Yigit, GMU, USA
MSO : Duggirala Pallam Raju, PRL, India.
This session focuses on the dynamical aspects of atmosphere-ionosphere
coupling at middle- and low-latitudes from the perspective of
vertical/lateral coupling by global atmospheric waves. There has been
growing interest in recent years to understand the role of atmospheric
wave forcing in determining the state of the upper atmosphere during
geomagnetic quiet conditions. The challenge so far has been to
associate the variabilities observed at ionospheric heights with
distant wave sources as the observational knowledge about many of
these sources is limited. For this session, studies dealing with this
aspect that make use of ground-based experimental campaigns, satellite
observations, and numerical model simulations are solicited. Results
on a multitude of wave effects on the atmosphere-ionosphere system,
involving chemical, dynamical and electrodynamical processes are
encouraged for submission. This session will aim to review the
progress made in these areas and propose future directions.
Session 5 : Space weather effects on low- and mid-latitudes
Conveners : Anthea Coster, MIT Haystack Observatory USA ; Dibyendu
Chakrabarty, PRL, India
MSO : Claudia Stolle, GFZ, Germany.
The focus of this session is on space weather effects at low and mid
latitudes. Space weather phenomena include electron density gradients
which can affect GNSS range solutions; the formation of severe
small-scale plasma irregularities which can lead to trans-ionospheric
radio wave scintillations that impact aeronautical and marine
navigation; atmospheric neutral density perturbations which can impair
the accuracy of satellite orbit predictions; and ionospheric currents
that can induce ground-electric currents which can impact the
electrical grid. Many, but not all of these effects, are generated
during geomagnetic storms and substorms and their associated
variability of electric fields and neutral density and winds. This
session solicits contributions that address processes in the
ionosphere and upper atmosphere leading to space weather effects.
Works based on observations and/or modeling results as well as
contributions that discuss mitigation strategies are highly welcome.
Session 6 : Results from new techniques, experiments, and campaigns
Conveners : Juha Viernen, UIT, Norway ; Raj Kumar Choudhary, SPL, India
MSO : Marco Milla, JRO, Peru ; Mamoru Yamamoto, RISH, Japan.
This is an open session for the scientific community to report
observations from new instruments and new observation programs that
aim to explore the equatorial mesosphere, thermosphere, and
ionospheric regions. Contributions showing results that make use of
newly developed observation techniques or newly established
instrumentation networks are invited. We also invite contributions
that show new results from ground-based, and/ or space-borne
instrumentation. This instrumentation may be recently deployed,
redeployed, or may have recently been upgraded. Examples of relevant
instrumentation include, but are not limited to digital ionosondes,
magnetometers, GNSS receivers, coherent or incoherent backscatter
radars, VLF/ELF receivers, rockets, space probes, optical imagers,
Fabry-Perot interferometers, etc.
Session 7 : Future trends, opportunities, and challenges in
Conveners : Jorge L. Chau, IAP, Germany ; Tarun Kumar Pant, SPL, India
MSO : Clezio De Nardin, INPE, Brazil ; Mamoru Yamamoto, RISH, Japan.
Low-latitude aeronomy is a mature field, however with the advent of
new instruments, techniques, satellite missions, improved coupled
models, etc., its understanding and corresponding utility for society
can be significantly improved. This session will be devoted to ongoing
and future perspectives of expected improvements in both basic as well
as applied sciences. Topics of this session include: Altitude and
latitude coupling as drivers for low latitude dynamics and ionospheric
irregularities, extracting new information from existing and improved
ground- and satellite-based techniques (e.g., radar imaging, dynamical
parameters from network measurements, ICON, GOLD, COSMIC2, Swarm,
among others), integrating large datasets (multiple instrument
datasets, model output/dataset integration), next-generation numerical
models of the coupled geospace system, and meeting the operational
needs for space weather predictions. This session will be composed of
invited talks. If you feel you can contribute to the session, please
contact the conveners.
Dr. D. Pallamraju, Professor,
Space and Atmospheric Sciences Division,
Physical Research Laboratory,
Navrangpura, Ahmedabad 380 009, INDIA
Email: raju at prl.res.in; URL: http://www.prl.res.in/~raju/
Phone: +91-79-26314658; Fax: +91-79-26314659
Convener, ISEA-15. ISEA-15 will be held in PRL during Oct 22-26, 2018.
Pl. visit https://www.prl.res.in/isea15 for more information.
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