digisondeindices's Introduction

Digisonde Indices

Digisonde Indices is a downloader and parser that retrieves Digisonde data from DIDBase. Output datatype is xarray.DataSet. Missing data is returned as an empty dataset.

Data Selection:

CS is Autoscaling Confidence Score (from 0 to 100, 999 if manual scaling, -1 if unknown)
foF2 (MHz) - F2 layer critical frequency
foF1 (MHz) - F1 layer critical frequency
MUFD (MHz) - Maximum usable frequency for ground distance D
foE (MHz) - E layer critical frequency
hF (km) - Minimum virtual height of F trace
hF2 (km) - Minimum virtual height of F2 trace
hmE (km) - Peak height of E-layer
hmF2 (km) - Peak height F2-layer
hmF1 (km) - Peak height F1-layer
yF2 (km) - Half thickness of F2-layer, parabolic model
yF1 (km) - Half thickness of F1-layer, parabolic model
B0 (km) - IRI thickness parameter
TEC (m^-2) - Total electron content

Example

Use from other scripts like:

import digisondeindices as didbase
import datetime as dt

# timezone-unaware example
date = dt.datetime(2012, 1, 1, 5, 0, 0) # 2012-01-01 05:00:00 UTC, even though datetime object created in timezone of machine at runtime
inds = didbase.get_indices(date, 'AH223') # retrieve data from Ahmedabad station

# timezone-aware example
date = dt.datetime(2012, 1, 1, 5, 0, 0) # 2012-01-01 10:00:00 UTC for US/Eastern (UTC-05:00) given execution machine time zone is set to US/Eastern
inds = didbase.get_indices(date, 'AH223', tzaware=True) # retrieve data from Ahmedabad station

Returned indices are always in UTC (as numpy.datetime64).

A list of available stations is provided by the Global Ionosphere Radio Observatory: DIDBase stations list

Data License

All GIRO measurements are released under CC-BY-NC-SA 4.0 license. Please follow the Lowell GIRO Data Center RULES OF THE ROAD. Requires acknowledgement of station data provider.

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