CEDAR email: ISEA-15: Abstract Submission now open

[Duggirala Pallamraju]

Dear Colleagues,

Greetings !!

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:  
https://www.prl.res.in/isea15/

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  
mid-latitudes
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  
modeling efforts.

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  
low-latitude aeronomy
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.
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-- 
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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