Sentinel-1 EW RTC (pyroSAR)

Notebook for creating Radiometrically Terrain Corrected (RTC) backscatter data for Sentinel-1 EW using the pyroSAR (SNAP backend) software. All inputs are downloaded in the notebook.

SNAP Instructions

1. Install SNAP

Installers - https://step.esa.int/main/download/snap-download/

SNAP for linux can be installed from the command line.

wget https://download.esa.int/step/snap/9.0/installers/esa-snap_sentinel_unix_9_0_0.sh

chmod 777 esa-snap_sentinel_unix_9_0_0.sh

sh esa-snap_sentinel_unix_9_0_0.sh -q esa-snap.varfile

export PATH="$PATH:$HOME/snap/bin"

sh update_snap.sh

rm esa-snap_sentinel_unix_9_0_0.sh

2. Install miniconda (if a suitable conda envrionment not already installed)

mkdir  -p  ~/miniconda3

wget  https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh  -O  ~/miniconda3/miniconda.sh

bash  ~/miniconda3/miniconda.sh  -b  -u  -p  ~/miniconda3

rm  -rf  ~/miniconda3/miniconda.sh

~/miniconda3/bin/conda init bash

3. Create the conda envrionment

conda env create -f environment.yml

4. Activate the environment

conda activate pyrosar_rtc

5. Setup credentials

• setup a nasa earthdata account at https://urs.earthdata.nasa.gov/users/new
• add credentials to credentials/credentials_earthdata.yaml based on example file in folder
• setup a ESA CDSE account at https://dataspace.copernicus.eu/
• add credentials to credentials/copernicus_earthdata.yaml based on example file in folder

6. run the notebook

GAMMA Instructions

1. Connect to the NCI

You must have access to the following projects

• yp75
• dg9

It is useful to have access to the Copernicus Hub project (fj7) as well.

2. Set up and activate conda environment

See SNAP instructions above

3. Create PyroSAR's GAMMA API

cd to this repository, noting it is already located at /g/data/yp75/projects/pyrosar_processing/s1-rtc-pyrosar-notebook

Run python initialise_gamma.py

4. Move scene to be processed to data folder.

5. Run the notebook