Ionospheric Science and Space Weather

Slides:

Advertisements

Similar presentations

Features of the Sun 6 th Grade. The Sun’s Composition.

Advertisements

ACTIVITY ON THE SUN: Prominences Sunspots Solar Flares CME’s – Coronal Mass Ejections Solar Wind Space Weather.

MHD Simulations of the January 10-11, 1997 Magnetic Storm Scientific visualizations provide both scientist and the general public with unprecedented view.

Space weather phenomena in the ionosphere and their effect on GNSS (Presented by Japan) IPXX ICAO ISTF/4 New Delhi, India, 5th to 7th February 2014 SUMMARY.

Title of Project Participants and Tutor Collect photos of group members.

Space Weather Workshop, Boulder, CO, April 2013 No. 1 Ionospheric plasma irregularities at high latitudes as observed by CHAMP Hermann Lühr and.

Modelling the Thermosphere-Ionosphere Response to Space Weather Effects: the Problem with the Inputs Alan Aylward, George Millward, Alex Lotinga Atmospheric.

Abstract Since the ionosphere is the interface between the Earth and space environments and impacts radio, television and satellite communication, it is.

Space Weather influence on satellite based navigation and precise positioning R. Warnant, S. Lejeune, M. Bavier Royal Observatory of Belgium Avenue Circulaire,

Anomalous Ionospheric Profiles Association of Anomalous Profiles and Magnetic Fields The Effects of Solar Flares on Earth and Mars.

Global Distribution / Structure of Aurora Photograph by Jan Curtis Synthetic Aurora pre- midnight,multi-banded Resonant ULF waves produce pre- midnight,

Solar Activity and VLF Prepared by Sheila Bijoor and Naoshin Haque Stanford University, Stanford, CA IHY Workshop on Advancing VLF through the Global AWESOME.

TIMED-GUVI for Nowcasting R. A. Goldberg and J. B. Sigwarth

1 UNCLASSIFIED – FOUO – Not for Public Release Operational Space Environment Network Display (OpSEND) & the Scintillation Network Decision Aid Dr. Keith.

Aurora Borealis By: Ariel Gooch Elementary Astronomy Spring 2011.

1 Saturn Aurora: The ionospheric and magnetospheric fingerprint, and a manifestation of interactions beyond. Saturn Aurora: The ionospheric and magnetospheric.

Space Weather Major sources of space weather ● Solar wind – a stream of plasma consisting of high energy charged particles released from the upper atmosphere.

The Sun Our Nearest Star. The Source of the Sun’s Energy The Source of the Sun’s Energy Fusion of light elements into heavier elements. Hydrogen converts.

Space Weather in Ionosphere and Thermosphere Yihua Zheng For SW REDI 2013.

Chapter 7 Propagation The Ionosphere

K9LA Vancouver 2003 Disturbances to Propagation Carl Luetzelschwab K9LA CQ DX?Where’d everybody go?

29 August, 2011 Beijing, China Space science missions related to ILWS in China

Space Science MO&DA Programs - September Page 1 SS It is known that the aurora is created by intense electron beams which impact the upper atmosphere.

Ionospheric Research at USU R.W. Schunk, L. Scherliess, J.J. Sojka, D.C. Thompson & L. Zhu Center for Atmospheric & Space Sciences Utah State University.

Solar Properties Has more than 99% the mass of our solar system Has more than 99% the mass of our solar system Diameter: 1,390,000 km Diameter: 1,390,000.

Response of the Magnetosphere and Ionosphere to Solar Wind Dynamic Pressure Pulse KYUNG SUN PARK 1, TATSUKI OGINO 2, and DAE-YOUNG LEE 3 1 School of Space.

Cosmic rays and solar flares Draw in the back of your book the life cycle of a star.

Intense Poynting flux at very high latitudes during magnetic storms: GITM simulation results Yue Deng 1 Cheng Sheng 1, Manqi Shi 1, Yanshi Huang 2, Cheryl.

Observations Of Temperature Gradient Instabilities In The Plasmapause Region Using The SuperDARN HF Wallops Radar And Millstone Hill CEDAR 2007 P. J. Erickson,

Mapping high-latitude TEC fluctuations using GNSS I.I. SHAGIMURATOV (1), A. KRANKOWSKI (2), R. SIERADZKI (2), I.E. ZAKHARENKOVA (1,2), Yu.V. CHERNIAK (1),

ESS 7 Lecture 13 October 29, 2008 Substorms. Time Series of Images of the Auroral Substorm This set of images in the ultra-violet from the Polar satellite.

Monitoring Space Weather with GPS Anthea J. Coster.

It is considered that until now in the 24th cycle of solar activity 2 ground level enhancements of solar cosmic rays (GLEs) are registered: on May 17,

WSM Whole Sun Month Sarah Gibson If the Sun is so quiet, why is the Earth still ringing?

What is a geomagnetic storm? A very efficient exchange of energy from the solar wind into the space environment surrounding Earth; These storms result.

1 SPACE WEATHER SPACE WEATHER. 2 Causes of space weather Space weather is caused mainly by storms and eruptions in our volatile Sun sending potentially.

Mike Ruohoniemi 2012VT SuperDARN Remote Sensing of the Ionosphere and Earth’s Surface with HF Radar J. Michael Ruohoniemi and Joseph Baker.

Characteristics and source of the electron density irregularities in the Earth’s ionosphere Hyosub Kil Johns Hopkins University / Applied Physics Laboratory.

Space Weather Services to Build Global Resilience Expert Meeting on Space Weather Services February 3, 2015 – UNCOPUOS STSC Assembly Goal: Foster greater.

By Martina Stumpp. Overview I.What are Auroras? II.What causes them? III.Auroral Zone IV.Colors V.Auroras on other planets.

Bringing 93,000,000 Miles to 40,000 Feet: Space Weather & Aviation An introduction to Space Weather What is it? Where does it come from? What does it do?

Radio Wave Propagation

Solar Radio Bursts and Effects on GPS*

 Morphology and Dynamics of Auroral Arcs By Sarah Bender Mentor: Kyle Murphy 8/7/2014.

VT SuperDARN Group Joseph Baker Ground-Based Observations of the Plasmapause Boundary Layer (PBL) Region with.

Add to table of Contents Atmosphere LayersPg. 76 AtmospherePg. 77.

near-Space Environment

When Lower Atmosphere Waves Invade the Upper Atmosphere

Data-Model Comparisons

Space Weather: From The Sun To The Earth

Space weather phenomena in the ionosphere and their effect on GNSS

Connecting Earth to Space: NASA Heliophysics Provides Data on how Space Weather Impacts Earth’s Environment Using NASA Van Allen Probes mission data, researchers.

CEDAR Frontiers: Daytime Optical Aeronomy Duggirala Pallamraju and Supriya Chakrabarti Center for Space Physics, Boston University &

S. Datta-Barua, Illinois Institute of Technology G. S. Bust, JHUAPL

The Ionosphere and Thermosphere GEM 2013 Student Tutorial

Space weather challenges of the polar cap ionosphere

The ionosphere is much more structured and variable than ever predicted. Solar Driven Model Since 2000, we have seen more, very clear evidence that the.

Ionospheric fluctuations structure during strong geomagnetic storm by incoherent scatter radar and GPS data Yu.V. CHERNIAK(1), I.I. SHAGIMURATOV(1), A.

Ionosphere, Magnetosphere and Thermosphere Anthea Coster

Solar Activity and Space Weather

The Closest Star- Our Sun

Solar and Heliospheric Physics

Radio frequencies and space weather

Ionospheric impacts on LoFAR

The Centre of the Solar System Earth Science 11

The Ionosphere Equatorial Anomaly.

by using EISCAT/ESR Radars Enhanced TEC fluctuations

Fig. 1 Solar cycle and experimental setup.

Three Regions of Auroral Acceleration

CORONAL MASS EJECTIONS

Presentation transcript:

Ionospheric Science and Space Weather GNSS data for Ionospheric Science and Space Weather Anthea Coster MIT Haystack Observatory

2. Illustrate the current uses of network data 1. Elucidate the current state of the network 2. Illustrate the current uses of network data 3. Identify potential new utility of the data 4. Determine the optimal configuration moving forward: Ideal number of stations, Placement of stations, Replacement and upgrade of stations, Data management. - how does your science use the current GNET? - to what extent does your work depend on the entire network? - how could the network be improved to support your work? - what new work could be enabled with this network, related to your work or not?

Strong growth in GNSS applications - surveying, drilling, precision agriculture, navigation, aviation Space weather leads to degradation in accuracy or availability IONOSPHERE

SPACE WEATHER

Near-Earth Space: Solar-Terrestrial Interaction Shue et al. magnetopause (blue) Radiation, solar wind (hydrogen+ and e-) and IMF; 8 minutes for radiation to reach earth and 2-4 days for solar wind to reach earth Ths is driver of space weather

Near-Earth Space: Terrestrial Environment Dipolar configuration does not support polar patches, aurora or storm enhanced density

The Aurora Altitudes of aurora

Increase in background noise level due to solar radio bursts How can we predict the occurrence of, and reaction to, Space Weather? Strong growth in GNSS applications - surveying, drilling, precision agricultures, navigation, aviation Space weather leads to degration in accuracy or availability Large scale TEC gradients Rapid change in the TEC due to solar flare Increase in background noise level due to solar radio bursts Scintillation you heard yesterday from Dale Gary about the effect of solar radio bursts to the operation of high precision GNSS systems - and where you see all these red dots is when these systems could not provide their results. Overhere you see the rapid change in tec in an 8 minute period following an x-class solar flare.

Storm-Enhanced Density Severe ionosphere gradients Impact on DGPS and SBAS positioning applications, among others

Space Weather: Gradients over the Poles Space weather can be defined as anomalous electron density strutures such as the storm endhanced electron density feature (which is represented by the red) seen below which converts into the tongue of ionization over the poles. This example is of the total electron content over the poles.

Enhanced TEC measured at ~ 24 UT

nain

Space Weather - Scintillation SV velocity vs Plasma drift vp Wave front: uniform phase uniform amplitude Incident wave Ionosphere Irregularities Wave emerging from below irregularities: non-uniform phase quasi-uniform/non-uniform amplitude Diffraction/interference pattern Ground

The Aurora Polar Region Auroral Oval What altitude distribution of irregularities? Differs polar cap versus auroral region due to different nature of phenomena (open versus closed magnetic field lines etc.)

Example: Auroral Arc Near South Pole All-sky imager (120 km altitude) (G. Bust) GPS signal

Auroral Arcs and Scintillation ASI field of view; keogram  (rad)

Patchy Pulsating Aurora Different types of aurora occur – patchy pulsating versus bright discrete arcs. Effects on GNSS signals can differ.

E. G. Thomas (Space@VT) GPS TEC & SuperDARN CEDAR-GEM, 2011

TRAVELING IONOSPHERIC DISTURBANCES

This develops into TIDS

2. Illustrate the current uses of network data 1. Elucidate the current state of the network 2. Illustrate the current uses of network data 3. Identify potential new utility of the data 4. Determine the optimal configuration moving forward: Ideal number of stations, Placement of stations, Replacement and upgrade of stations, Data management. - how does your science use the current GNET? - to what extent does your work depend on the entire network? - how could the network be improved to support your work? - what new work could be enabled with this network, related to your work or not?