istsa 1.0.3

ISTerre Time Series Analysis (ITSA) is a tool developed by Lou Marill. This tool, developed in Python, produces a trajectory model for GNSS time series.

ITSA = ISTerre Time Series Analysis

ITSA was developped by Lou Marill during her PhD, as a member of the ISTerre Cycle team. This tool developped in python produces a trajectory model for GNSS time series.

Inputs:

• the time series in PBO pos format
• the dates and types of discontinuities (antenna, earthquakes, slow-slip events, swarms)
• station coordinates (used to get earthquakes-station distance)
• optionally, a list of position outliers

ITSA calculates:

• the 3 dimensional offset for each equipment discontinuity
• post-seismic relaxation, currently without inversion (tau is an input parameter)
• linear, seasonal, and acceleration on the full time series

Outputs:

• Final time series
• Intermediate time series
• All modelled and applied corrections

ITSA is distributed under the licence CC-BY-NC: https://creativecommons.org/licenses/by-nc/4.0/

Documentation is available on the gitlab wiki: https://gricad-gitlab.univ-grenoble-alpes.fr/isterre-cycle/itsa/-/wikis/home