Table of Contents ECSS Model Page
Background Information Atmosphere and ionosphere
Positional version

Overview

This implementation of the atmosphere and ionosphere models runs in combination with the coordinate grid generator. SPENVIS verifies if a coordinate grid has been generated prior to accessing the model page. If not, an error message is displayed with a link to the coordinate grid generator. Please note that running the grid generator will delete all existing output resulting from models that use the coordinate grid.

The atmosphere and ionosphere models can be evaluated over the following domains:

  1. one single geographical point, with one of the model parameters as an independent variable;
  2. a one-dimensional range of geographical points;
  3. a two-dimensional map in latitude and longitude, at fixed altitude and universal or local time.

The input parameters and options for the models are described below. When the input form has been completed, pressing the button will start the calculation and bring up the "Results" page.

Model parameters

The input parameters depend on the selected model.

If the coordinate grid generated previously is of the type "single geographic position", a range of one of the model parameters can be specified. For other coordinate grid types (profile, world map), this option is not available. The parameter range is defined by specifying the last value in the range, and the increments between the first and last value. The parameter can be incremented with a fixed step size, or the number of values (with linear or logarithmic spacing) can be specified.

Results

The atmosphere and ionosphere models produce the files listed in the table below. A description of the file formats can be brought up by clicking on their description in the table.

The report file spenvis_app.html contains the input parameters and summary tables. The spenvis_apo.txt file contains densities, temperatures and other parameters for each grid point.

Output files generated by the atmosphere and ionosphere models
File name Description
spenvis_app.html Report file
spenvis_apo.txt Densities and temperatures for each grid point

To generate plots, select the plot type(s), options and graphics format, and click the or button. The current page will be updated with the newly generated plot files.

Last update: Mon, 12 Mar 2018