Meteorological data provides a rich source of imagery which is well suited to the growing eld of agent networks based image processing. Here we discuss one such system which analyses Doppler and reeec-tivity radar volumes to detect microbursts (windshear events). The system employs a network of agents, each performing a subtask of the detection, with message passing between agents. The various ...

We present statistical characteristics of electron microburst precipitation using high time-resolution measurements from the low-altitude Electron Losses and Fields InvestigatioN (ELFIN) CubeSats. The radial distribution equatorial projection microbursts as a function geomagnetic activity suggests that they are produced by resonant interaction with quasi-parallel lower-band chorus waves. ELFIN ...

[1] We examine signatures of two types of waves that may be involved in the acceleration of energetic electrons in Earth’s outer radiation belts. We have compiled a database of ULF wave power from SAMNET and IMAGE ground magnetometer stations for 1987– 2001. Long-duration, comprehensive, in situ VLF/ELF chorus wave observations are not available, so we infer chorus wave activity from low-altitu...

A microburst is a local, intense downdraft which induces an outburst of damaging winds near the ground which extends 4 km or less. Microbursts are of interest to researchers because of the strong, occasionally damaging surface winds they produce, and the hazardous wind patterns they create for aircraft in the landing or takeoff phases of flight. The dynamics and aircraft hazards posed by an iso...

This study investigates the energy spectrum of electron microbursts observed by Focused Investigations Relativistic Electron Burst Intensity, Range, and Dynamics II (FIREBIRD-II, henceforth FIREBIRD) CubeSats. FIREBIRD is a pair CubeSats, launched in January 2015 into low Earth orbit, which focuses on studying microbursts. High-resolution data from FIREBIRD-II consist 5 differential channels be...

During magnetospheric storms, radiation belt electrons are produced and then removed by collisions with the lower atmosphere on varying timescales. An efficient loss process is microbursts, strong, transient precipitation of over a wide energy range, from tens keV to sub-relativistic relativistic energies (100s above). However, detailed generation mechanism especially energies, remains unknown....

Wind shear, which refers to sudden and sustained changes in the wind direction and speed, could be hazardous to aviation. Windshear is rather difficult to predict due to its transient and sporadic nature. Moreover, the causes of wind shear may be different at different airports. In some places it is caused by microbursts, while in other places wind shear may result from meso-scale weather pheno...