ISCE 2 StaMPS Manual

Manual

Manual

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ISCE to StaMPS Manual
Version 1.0.1

Author: David Bekaert
Jet Propulsion Laboratory, California Institute of Technology
United States Government Sponsorship acknowledged
20 April, 2018

Contents
1 DISCLAIMER

1

2 Installation

2

3 Introduction

3

4 Setting-up StaMPS processing directories
4.1 PS Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 SB Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4
5
5

5 Additional scripts

6

i

Chapter 1

DISCLAIMER
This manual and the included scripts call routines of the JPL/Caltech ISCE software to prepare
outputs of the ISCE stack processort for ingestion in the open source StaMPS package. It is
assumed that the user has already generated the coregisterd stack using the ”SLC” workflow of the
stack processors included ISCE contrib folder. At this time, the ISCE to StaMPS package supports
only outputs from the topsStack processor.

In additon to citing ISCE and the stack processor, cite the ISCE to StaMPS as:
D. P. S. Bekaert et al. Spaceborne Synthetic Aperture Radar Survey of Subsidence in Hampton
Roads, Virginia (USA), Scientific Reports (2017). DOI: 10.1038/s41598-017-15309-5
The provided scripts as part of this ISCE to StaMPS conversion package, are included into the
contrib of ISCE and are not supported as part of official ISCE applications. The provided scripts only
set-up the assumed StaMPS processing structure. Users should refer back to StaMPS for actual
time-series processing. The scripts are provided to you ”as is” with no warranties of corrections.
Use at your own risk.

Author: David Bekaert
Organization: Jet Propulsion Laboratory, California Institute of Technology
United States Government Sponsorship acknowledged.

1

Chapter 2

Installation
The provided scripts call ISCE and StaMPS functionality, both packages should be installed. In
addition the bin folder should be added to your PATH.

2

Chapter 3

Introduction
A set of shell scripts are provided that set-up the StaMPS directory structure using outputs from
the ISCE stack processors. Outputs from stripmapApp.py and topsApp.py are not supported as
these are pair-by-pair processing apps in ISCE. Only outputs from the topsStack and stripmapStack
processors are supported in which the user should have selected the ”SLC” workflow.

The SLC workflow outputs a stack of coregisted SLC’s, baselines grids for each SLC, and geometry
files (e.g., los, lon, lat, hgt). Each of these files should a corresponding xml file. In case xml files are
needed, use the gdal2isce xml.py script included in ISCE package to generate them.
The following structure is assumed:

• SLC’s are organized as yyyymmdd/yyyymmdd.slcSLC suffix, where the SLC suffix
is an optional suffix string.

• Baselines
are
organized
master slave/master slave.txt,
yyyymmdd format.

as
where

master slave/master slave
master
and
slave
are

or
in

• Geom data are stored together as lon.rdrgeom suffix, lat.rdrgeom suffix,
hgt.rdrgeom suffix and los.rdrgeom suffix, where the geom suffix is an
optional suffix string.

3

Chapter 4

Setting-up StaMPS processing
directories
Generate a file called ”input file” at the location where the INSAR master date needs to
be generated. The following parameters should be contained in the input file. Required
parameters are indicated with (R), optional parameters with (O). The master date can be chosen
based on minimizing perpendicular and temporal baseline. The baselines will be automatically
re-inverted to the chosen master.
Parameter Name

Value

source data
slc stack path
slc stack master

slc stack

slc stack geom path
slc stack baseline path
range looks

PATH geom
PATH baseline
40

azimuth looks

10

aspect ratio

4

lambda
slc suffix
geom suffix

0.056
.full
.full

PATH SLC
yyyymmdd

To generate the single master setup type:

make single master stack isce

4

Description:
R=required,O=optional
Do not change (R)
Path to the SLC stack (R)
Master date as to be used in StaMPS
processing. Does not need to be the
same as the master used for generating the coregistered stack. (R)
Path to the geometry directory. (R)
Path to the baselines directory (R)
Number of range looks multi-looked
products (R)
Number of azimuth look multi-looked
products (O). azimuth looks overrules aspect ratio.
Aspect ratio multi-looked products
(R)
Wavelength in meter units (R)
Suffix string for SLC’s (O)
Suffix string for geom files (O)

4.1. PS PROCESSING

5

4.1 PS Processing
If you plan to run the StaMPS PS processing, proceed directly to the ”PS processing” chapter of the
StaMPS manual. Unlike the mt prep command detailed in the StaMPS manual use mt prep isce
instead.

4.2 SB Processing
If you plan to only run the StaMPS Small Baseline processing, it will save time and disk space
to turn the hard-coded flag for the SM interferogram and amplitude file generation to ’n’ in the
make single master stack isce code. Even when not generating the interferograms or
amplitude files, the required information for the SMALL BASELINES processing will be extracted.

If you did not run the STAMPS PS processing in the INSAR master date directory, then first load
baseline info into the matlab workspace. If you already ran the PS processing, you can skip this step:

mt extract info isce
matlab
>>ps load info
To determine which small baseline interferograms to make, in the INSAR master date directory
run one of the sb find*.m codes included in StaMPS, e.g.,:

matlab
>>sb find (rho min , Ddiff max , Bdiff max)
Adjust the input parameters according to your data set, where rho min is the minimum coherence
based on the maximum temporal Ddiff max and perpendicular Bdiff max decorrelated baselines. There should be no isolated clusters of images. More connections can be made by reducing
rho min, or individual connections can be added by editing small baselines.list, which is
created by sb find. The connections in small baselines.list can then be plotted with the
default StaMPS program:

>>plot sb baselines.
To create the small baseline interferograms listed in small baselines.list in the

INSAR master date directory, run:
make small baselines isce.
Once completed, proceed directly to ”Small Baseline processing” chapter of the StaMPS manual.
Unlike the mt prep command detailed in the StaMPS manual use mt prep isce instead.

Chapter 5

Additional scripts
If mdx is intalled, the following command can be used to make snapshots of the interferograms:

get quickview isce isce minrefdem.int

6
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