THEMIS Particle Moments (Ground): Difference between revisions
Jump to navigation
Jump to search
(adding basic data product descriptions) |
(→Products: adding table for variable descriptions) |
||
| Line 10: | Line 10: | ||
==Products== | ==Products== | ||
Products marked with a * require magnetic field data to be loaded. | Products marked with a * require magnetic field data to be loaded. All "vector" data types are 3-vectors. Symmetric tensors are stored in six dimensions: xx, yy, zz, xy, xz, yz. | ||
{| class="wikitable" style="border: 1px solid LightGray; background-color:#F9F9F9; margin-left:5px;" | |||
|- | |||
|'''''Variable Name''''' | |||
|'''''Description''''' | |||
|'''''Units''''' | |||
|'''''Data type''''' | |||
|- | |||
|density | |||
|Density | |||
|1/cm<sup>3</sup> | |||
|scalar | |||
|- | |||
|current | |||
|Current | |||
| | |||
|scalar | |||
|- | |||
|flux | |||
|Number flux | |||
|1/(s·cm<sup>2</sup>) | |||
|vector | |||
|- | |||
|eflux | |||
|Energy flux | |||
|eV/(s·cm<sup>2</sup>) | |||
|vector | |||
|- | |||
|velocity | |||
|Velocity | |||
|km/s | |||
|vector | |||
|- | |||
|t3 | |||
|Diagonalized temperature | |||
|eV | |||
|vector | |||
|- | |||
|magt3 | |||
|Magnetic field aligned temperature* | |||
|eV | |||
|vector | |||
|- | |||
|avgtemp | |||
|Average temperature | |||
|eV | |||
|scalar | |||
|- | |||
|vthermal | |||
|Thermal velocity | |||
|km/s | |||
|vector | |||
|- | |||
|mftens | |||
|Momentum flux tensor | |||
|eV/cm<sup>3</sup> | |||
|symmetric tensor | |||
|- | |||
|ptens | |||
|Pressure tensor | |||
|eV/cm<sup>3</sup> | |||
|symmetric tensor | |||
|- | |||
|symm | |||
|Direction of pressure tensor symmetry | |||
|''n/a'' | |||
|vector | |||
|- | |||
|symm_phi | |||
|Phi (longitude) direction of symmetry vector | |||
|° | |||
|scalar | |||
|- | |||
|symm_theta | |||
|Theta (latitude) direction of symmetry vector | |||
|° | |||
|scalar | |||
|- | |||
|symm_ang | |||
|Angle between symmetry vector and magnetic field* | |||
|° | |||
|scalar | |||
|} | |||
==Contamination== | ==Contamination== | ||
Revision as of 02:04, 7 March 2015
A variety of data products can be derived by computing the moments of measured THEMIS particle data. Moments are produced after selecting a spacecraft, particle data type, and time range. Some products also require a magnetic field variable.
For command line usage see:
Products
Products marked with a * require magnetic field data to be loaded. All "vector" data types are 3-vectors. Symmetric tensors are stored in six dimensions: xx, yy, zz, xy, xz, yz.
| Variable Name | Description | Units | Data type |
| density | Density | 1/cm3 | scalar |
| current | Current | scalar | |
| flux | Number flux | 1/(s·cm2) | vector |
| eflux | Energy flux | eV/(s·cm2) | vector |
| velocity | Velocity | km/s | vector |
| t3 | Diagonalized temperature | eV | vector |
| magt3 | Magnetic field aligned temperature* | eV | vector |
| avgtemp | Average temperature | eV | scalar |
| vthermal | Thermal velocity | km/s | vector |
| mftens | Momentum flux tensor | eV/cm3 | symmetric tensor |
| ptens | Pressure tensor | eV/cm3 | symmetric tensor |
| symm | Direction of pressure tensor symmetry | n/a | vector |
| symm_phi | Phi (longitude) direction of symmetry vector | ° | scalar |
| symm_theta | Theta (latitude) direction of symmetry vector | ° | scalar |
| symm_ang | Angle between symmetry vector and magnetic field* | ° | scalar |