Mean Energies and Energy Fluxes from THEMIS ASIs on 2010-02-16 from 9-10 UT

This dataset includes the precipitated mean energies and energy fluxes determined using the THEMIS all-sky-imagers on February 16, 2010, from 9-10 UT. Versions that assumed a Gaussian distribution and those that assumed a Maxwellian distribution of the precipitated populations are both included. The methods to create the dataset are described in the following publication, for which this data was used:

Gabrielse C, Nishimura T, Chen M, Hecht JH, Kaeppler SR, Gillies DM, Reimer AS, Lyons LR, Deng Y, Donovan E and Evans J (2021) Estimating Precipitating Energy Flux, Average Energy, and Hall Auroral Conductance From THEMIS All-Sky- Imagers With Focus on Mesoscales. Front. Phys. 9:744298. doi: 10.3389/fphy.2021.744298 

https://www.frontiersin.org/articles/10.3389/fphy.2021.744298/full

The data are stored in TPLOT variables, which can be accessed using the SPEDAS software routines that can be downloaded here: http://themis.igpp.ucla.edu/software.shtml               

The TPLOT variables store the data in a structure that has the following format:

DOUBLE    Array[1200]
   X_IND           LONG      Array[1]
   Y               FLOAT     Array[1200, 400, 400]
   Y_IND           LONG      Array[1]
   GLAT            FLOAT     Array[400, 400]
   GLAT_IND        LONG      Array[1]
   GLON            FLOAT     Array[400, 400]
   GLON_IND        LONG      Array[1]

The Y attribute contains the data (either mean energy or energy flux) in a 1200 x 400 x 400 array. The 1200 points represent time, which are recorded in the X attribute as seconds since January 1, 1970. The 400 x 400 array represent the 400 x 400 locations where data was recorded. Those locations are stored as geographic latitude and longitudes in the GLAT and GLON attributes.