Database for "A New Four-Component L*-dependent Model for Radial Diffusion based on Solar Wind and Magnetospheric Drivers of ULF Waves"

Database for "A New Four-Component L*-dependent Model for Radial Diffusion based on Solar Wind and Magnetospheric Drivers of ULF Waves" submitted to Space Weather by Murphy et al. 

The repository contains 2 datasets:

• The power spectral density of the compressional magnetic field from THEMIS, Van Allen Probes, and GOES along with accompanying position (MLT, L, L* TS05), solar wind, and geomagnetic data
• The power spectral density of the azimuthal electric field from THEMIS and Van Allen Probes along with accompanying position (MLT, L, L* TS05), solar wind, and geomagnetic data

Both datasets are provided as an IDL save file and as an HDF5 file.

The IDL data can be loaded using: 

filename='electric_field_psd.sav'
filename='magnetic_field_psd.sav'

restore, filename, /verbose

The HDF5 file can be opened and investigate using (small changes will be required to store each variable):

import h5py

filename = 'magnetic_field_psd.h5' # magnetic field data
filename = 'magnetic_field_psd.h5' # electric field data

with h5py.File(filename, "r") as f:
    # loop through all keys (data)
    #print key and key attribute and size
    for i in f.keys():
    print(f"{i} - {f[i].attrs['attributes']}, shape - {f[i].shape}")
    ds_obj = f[i]      # returns as a h5py dataset object
    ds_arr = f[i][()]  # returns as a numpy array

Below is a description of unique and common variables in each file. The psd variables have a shape [f,t], indicating the first dimension is frequency and the second is time, the f_mhz variable has shape [f], and all time series have shape [t]; here [f] and [t] denotes the number of elements in frequency and time arrays.  

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Magnetic field data set:

Files

• magnetic_field_psd.h5
• magnetic_field_psd.sav

Unique Data (variable in file)

• psd 
  • Power spectral density of the compressional magnetic field from THEMIS, Van Allen Probes, and GOES
  • Units - nT²/mHz
  • Shape - [f, t]

------------------------------------

Electric field data set:

Files

• electric_field_psd.h5
• electric_field_psd.sav

Unique Data (variable in file)

• psd 
  • Power spectral density of the azimuthal electric field from THEMIS, Van Allen Probes, and GOES
  • Units - (mV/m)²/mHz
  • Shape - [f, t]

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Common Data in the Magnetic and Electric Field Datasets (variable in file):

• probe
  • Corresponding satellite of each time stamp
  • Shape [t]
• t
  • Time stamp of each time series; number of seconds since 1970  (UNIX time), [t]
  • Units - s
  • Shape [t]
• f_mhz
  • Frequency of psd data, [f]
  • Units - mHz
  • Shape [f] - (19)
• ae
  • OMNI AE index of each time stamp
  • Units - nT'
  • Shape [t]
• al
  • OMNI AL index of each time stamp, units - nT
  • Shape [t]
• au
  • OMNI AU index of each time stamp 
  • Units - nT
  • Shape [t]
• b_t
  • OMNI IMF B of each time stamp
  • Units - nT
  • Shape [t]
• b_x
  • OMNI IMF Bx (GSM) of each time stamp
  • Units - nT
  • Shape [t]
• b_y
  • OMNI IMF By (GSM) of each time stamp
  • Units - nT
  • Shape [t]
• b_z
  • OMNI IMF Bz (GSM) of each time stamp
  • Units - nT
  • Shape [t]
• dst
  • OMNI Dst of each time stamp
  • Units - nT
  • Shape [t]
• kp -
  • OMNI Kp (Kp*10) of each time stamp
  • units - NA
  • Shape [t]
• l_sh
  • L-shell of each time stamp
  • Shape [t]
• ls_t05
  • L* from TS05 of each time stamp
  • Shape [t]
• mlt
  • Magnetic Local Time of each time stamp
  • Unit - hour
  • Shape [t]
• n
  • OMNI Solar Wind Proton Density of each time stamp
  • Units - n/cc
  • Shape [t]
• pdyn
  • OMNI Solar Wind Dynamic Pressure (flow pressure) of each time stamp
  • Units - nPa
  • Shape [t]
• symh - b'OMNI Sym-H of each time stamp, units - nT', shape - (477205,)
• v_t
  • OMNI Solar wind V of each time stamp
  • Units - km/s
  • Shape [t]
• v_x
  • OMNI Solar wind Vx (GSE) of each time stamp
  • Units - km/s
  • Shape [t]
• v_y
  • OMNI Solar wind Vy (GSE) of each time stamp
  • Units - km/s
  • Shape [t]
• v_z
  • OMNI Solar wind Vz (GSE) of each time stamp
  • Units - km/s
  • Shape [t]