MPIC-OPT stands for Multiple Pairwise Image Correlation of OPtical image Time-series.
The service allows the processing of optical image pairs for the monitoring of Earth surface deformation.
The service version “MPIC-OPT-ICE” is designed for monitoring glacier and ice sheet persistent motion.
See the GEP tutorial
https://docs.terradue.com/geohazards-tep/tutorials/mpic-ice.html
Dear GEP community,
I wish to generate a time-series (e.g. monthly values) of horizontal surface velocity on glaciers using MPIC-OPT ICE. However, the result I got from a series of Sentinel-2 images was limited to average velocities for the entire image series provided. Is there an option within MPIC-OPT ICE to obtain e.g. monthly glacier velocities and/or individual displacements between images?
Thank you.
Best regards,
Michael
Dear Micheal,
You should be able to see four archives (.tgz) in the output of the MPIC-OPT-ICE service. Please, download the archive ending with “inversion.tgz” (see screenshot below). In this archive, you must find three CSV files for the EW, NS and total magnitude displacement. You will find inside these files the time series of the cumulative displacement and be able to perform your analysis.
Hope this is helpful.
Dear Ms Provost,
I tried to download the “inversion.tgz” file as mentioned before but when I try to unzip the file, I only have three .TIF files and no CSV. Perhaps you can help me with this ?
Thank you in advance for your help.
Valentine Piroton
Dear Valentine,
The format of file was changed temporarily during August 2022. This explains why you did not have this output with your last run.
We now added a new format (HDF5 file) to optimize the storage and the download of the displacement time series.
As for now, the time series are available in CSV and HDF5 files.
You may use the format that suit you the most.
Best,
