Database-Exploration

This repository contains code to explore glacier databases and make intersection between them.

Supported databases:

• Randolph Glacier Inventory (RGI)
• Theia annual speed product from Millan et al. (2022)
• Surface flow velocity: datacubes of speed over time which are available through internal resources at IGE

Data folder

All data are stored in the data/ folder.

RGI

Data can be downloaded at https://daacdata.apps.nsidc.org/pub/DATASETS/nsidc0770_rgi_v7/ which requires to create an account (free). The regional files should be unzipped and placed in the data/RGI/ folder according to the following organization:

data/RGI
|-- RGI2000-v7.0-G-01_alaska
|   |-- README.md
|   |-- RGI2000-v7.0-G-01_alaska-attributes.csv
|   |-- RGI2000-v7.0-G-01_alaska-attributes_metadata.json
|   |-- RGI2000-v7.0-G-01_alaska.cpg
|   |-- RGI2000-v7.0-G-01_alaska.dbf
|   |-- RGI2000-v7.0-G-01_alaska-hypsometry.csv
|   |-- RGI2000-v7.0-G-01_alaska.prj
|   |-- RGI2000-v7.0-G-01_alaska-rgi6_links.csv
|   |-- RGI2000-v7.0-G-01_alaska.shp
|   |-- RGI2000-v7.0-G-01_alaska.shx
|   |-- RGI2000-v7.0-G-01_alaska-submission_info.csv
|   `-- RGI2000-v7.0-G-01_alaska-submission_info_metadata.json
|-- RGI2000-v7.0-G-02_western_canada_usa
|   |-- README.md
|   |-- RGI2000-v7.0-G-02_western_canada_usa-attributes.csv
|   |-- RGI2000-v7.0-G-02_western_canada_usa-attributes_metadata.json
|   |-- RGI2000-v7.0-G-02_western_canada_usa.cpg
|   |-- RGI2000-v7.0-G-02_western_canada_usa.dbf
|   |-- RGI2000-v7.0-G-02_western_canada_usa-hypsometry.csv
|   |-- RGI2000-v7.0-G-02_western_canada_usa.prj
|   |-- RGI2000-v7.0-G-02_western_canada_usa-rgi6_links.csv
|   |-- RGI2000-v7.0-G-02_western_canada_usa.shp
|   |-- RGI2000-v7.0-G-02_western_canada_usa.shx
|   |-- RGI2000-v7.0-G-02_western_canada_usa-submission_info.csv
|   `-- RGI2000-v7.0-G-02_western_canada_usa-submission_info_metadata.json
|-- RGI2000-v7.0-G-03_arctic_canada_north
|   |-- README.md
|   |-- RGI2000-v7.0-G-03_arctic_canada_north-attributes.csv
|   |-- RGI2000-v7.0-G-03_arctic_canada_north-attributes_metadata.json
|   |-- RGI2000-v7.0-G-03_arctic_canada_north.cpg
|   |-- RGI2000-v7.0-G-03_arctic_canada_north.dbf
|   |-- RGI2000-v7.0-G-03_arctic_canada_north-hypsometry.csv
|   |-- RGI2000-v7.0-G-03_arctic_canada_north.prj
|   |-- RGI2000-v7.0-G-03_arctic_canada_north-rgi6_links.csv
|   |-- RGI2000-v7.0-G-03_arctic_canada_north.shp
|   |-- RGI2000-v7.0-G-03_arctic_canada_north.shx
|   |-- RGI2000-v7.0-G-03_arctic_canada_north-submission_info.csv
|   `-- RGI2000-v7.0-G-03_arctic_canada_north-submission_info_metadata.json
...

Theia annual speed product

Data can be downloaded from the SEDOO website and they should be organized as follows in data/Theia_annual_speed/:

data/Theia_annual_speed
|-- thickness
|   |-- RGI-1.zip
|   |-- RGI-2.zip
|   `-- RGI-3.zip
`-- velocity
    |-- RGI-1.zip
    |-- RGI-2.zip
    `-- RGI-3.zip

Surface flow velocity

If you have access to the IGE's resources, the data/surface_flow_velocity/ folder can be copied using rsync. This is done automatically by the scripts provided that you have enabled SSH public key authentication.