HamSCI @ AGU 2019

HamSCI @ AGU 2019

Tuesday, December 10, 2019 - 12:59

This week, many HamSCI members are presenting their research at the American Geophysical Union (AGU) Fall Meeting in San Francisco. The AGU Fall meeting is one of the largest geoscience meetings in the world, and consists of about 24,000 attendees. The scientific program includes sessions pertaining to all areas of geophysics, including space weather, the solar wind, auroral activity, the ionosphere, and the neutral atmosphere. Below is a list of selected presentations and sessions being given by HamSCI members, or of general interest to ham radio operators. The complete scientific program is available here.


Selected AGU Presentations of Interest to HamSCI

Monday   December 9, 2019    
09:30 - 09:45 Moscone South - 205-206, L2 SA11A-07 - Observations of pole-to-pole, stratosphere-to-ionosphere connection Larisa Goncharenko (MIT Haystack)  
08:00 - 12:20 Moscone South - Poster Hall SM11C-3301 - An examination of sub-auroral ionospheric convection using SuperDARN and AMPERE Bharat Kunduri KK4DZY (Virginia Tech) VT SuperDARN
08:00 - 12:20 Moscone South - Poster Hall SM11B-3290 - Observations of Ground-level Auroral Kilometric Radiation and its relationship to simultaneous AKR observed with the Geotail and Cluster satellites James LaBelle (Dartmouth)  
Tuesday   December 10, 2019    
08:30 - 08:45 Moscone South - 207, L2 SM21A-03 - New STEVE phenomena characterization and database by ‘professional-amateur’ collaborative Heliophysics Elizabeth MacDonald (NASA) Aurorasaurus
09:00 - 09:15 Moscone South - 207, L2 SM21A-05 - Some Recent Observational and Theoretical Progress in Understanding Inner Magnetosphere Plasma Transport Dynamics (Invited) Phil Erickson W1PJE (MIT Haystack)  
11:30 - 11:40 Moscone South - 205-206, L2 SA22A-08 - A Traveling Ionospheric Disturbance Activity Index Anthea Coster (MIT Haystack)  
13:40 - 18:00 Moscone South - Poster Hall SA33B-3136 - Improvements to SuperDARN convection analysis and observation techniques William Bristow (U Alaska Fairbanks) UAF SuperDARN
Wednesday   December 11, 2019    
11:50 - 12:00 Moscone South - 215, L2 ED32A-10 - Towards developing appropriate and diverse metrics for citizen science – a case study Elizabeth MacDonald (NASA) Aurorasaurus
08:00 - 12:20 Moscone South - Poster Hall A31U-2759 - Airborne Weather Station And Amateur Radio Repeater For Disaster Response Gabriel Ladd KN4UJK  
Thursday   December 12, 2019    
10:20 - 10:50 Moscone South - 104-105, LLS TT42A - The Stories of STEVE, Community Science, and Disruptive Innovation Elizabeth MacDonald (NASA) Aurorasaurus
11:20 - 11:35 Moscone South - 208, L2 SH42A-05 - Stealthy Coronal Mass Ejections and High Speed Streams: A Recipe for Surprisingly Geoeffective Events at 1 AU Tamitha Skov WX6SWW (Aerospace Corp)  
08:00 - 12:20 Moscone South - Poster Hall SH41E-3297 - Design, Testing, and Implementation of the Marshall Grazing Incidence X-ray Spectrometer Slit-Jaw Context Imaging System Phillip Wilkerson KM4LVC (U Alabama Huntsville)  
13:40 - 18:00 Moscone South - Poster Hall SA43C-3213 - A Low-Cost HamSCI Citizen Science HF Doppler Receiver for Measuring Ionospheric Variability David Kazdan AD8Y and Kristina Collins KD8OXT (CWRU) PSWS
13:40 - 18:00 Moscone South - Poster Hall SA43C-3234 - SuperDARN echo occurrence during “Steve” events Gareth Perry KD2SAK (NJIT)  
  Moscone South - eLightning Theater III SA44A-07 - Exploring Earth’s High Latitude Aurora in Radio: The AERO and VISTA Cubesat Missions Phil Erickson W1PJE (MIT Haystack)  
Friday   December 13, 2019    
10:20 - 10:32 Moscone South - 203-204, L2 SA52A-01 - Large Scale Traveling Ionospheric Disturbances Observed using HamSCI Amateur Radio, SuperDARN, and GNSS TEC Nathaniel Frissell W2NAF (U Scranton) TIDs
16:00 - 16:15 Moscone South - 203-204, L2 SA54A-01 - TID wavelength control of disturbance features in quasi-vertically incident ionograms (Invited) Manuel Cervera (DST) TIDs
08:00 - 12:20 Moscone South - Poster Hall SA51C-3176 - Examining the Role of Dispersion Relation and Collision Frequency Formulations on Estimation of Shortwave–Fadeout Shibaji Chakraborty KN4BMT (Virginia Tech) Solar Flare Effects
08:00 - 12:20 Moscone South - Poster Hall SM51E-3239 - Statistical Study of Open Closed Boundaries (OCB) using ULF Wave Observations from Antarctic AGOs, McMurdo Station, and South Pole Station Rachel Frissell W2RUF (NJIT)  
08:00 - 12:20 Moscone South - Poster Hall SA51C-3173 - Propagation Teepee: A High Frequency (HF) Radio Spectral Feature Identified by Citizen Scientists Shing Fung (NASA) RadioJove
08:00 - 12:20 Moscone South - Poster Hall SM51I-3297 - Observations of Particle Loss due to Injection-Associated EMIC Waves Hyomin Kim KD2MCR (NJIT)  
08:00 - 12:20 Moscone South - Poster Hall SA51C-3170 - Bistatic SuperDARN Measurements: First-results Simon Shepherd (Dartmouth) Dartmouth SuperDARN
08:00 - 12:20 Moscone South - Poster Hall SA51C-3169 - Improved classification and geolocation of SuperDARN ground scatter Evan Thomas (Dartmouth) Dartmouth SuperDARN

Traveling Ionospheric Disturbances (TIDs)

Traveling ionospheric disturbances are space weather in nature and cause fluctuations in electron density that can have impacts on HF propagation.  Two techniques, GNSS based total electron content (integrated density through the ionosphere and plasmasphere), and incoherent scatter radar (direct altitude profiles of temperature, density, velocity), can provide spatial structure information on these disturbances.

Solar Flare and Storm Effects

Solar flares cause D region based HF blackouts, but have effects through the ionosphere and neutral atmosphere.  September 2017 was characterized by multiple solar flares as well as large geomagnetic storm perturbations.  Studying these helps understand the system's response to forcing.

Small-Scale Mid Latitude Irregularities

At mid-latitudes over North America, we have known for more than a decade that HF radars (SuperDARN) see almost constant backscatter from small-scale irregularities moving at slow ionospheric speeds.  The causes of these irregularities are still under investigation, but they are very useful as a remote diagnostic.  This will give updates on progress toward understanding the irregularity origins.  Their presence may cause short time period HF propagation path changes.