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Project description
Copernicus Marine Service client
A library to facilitate the access of Copernicus Marine Service products and datasets.
Introduction
This package allows to recover products and datasets information from Command Line Interface or with Python code, as well as download subsets through opendap protocol.
Command Line Interface (CLI)
Command describe
Retrieve information about products as JSON:
> copernicus-marine describe
{
"products": [
{
"bbox": [
"-25.00",
"75.00",
"70.00",
"86.00"
],
"created": "2011-10-11",
"product_id": "SEAICE_ARC_PHY_L3M_NRT_011_017",
"temporal_extent": [
"2021-04-27",
null
],
"thumbnail": "https://catalogue.marine.copernicus.eu/documents/IMG/SEAICE_ARC_PHY_L3M_NRT_011_017.png",
"title": "ARCTIC Ocean and Sea-Ice Sigma-Nought"
}
...
]
}
Retrieve all information about products and datasets as JSON:
> copernicus-marine describe --include-description --include-datasets --include-providers --include-keywords
{
"products": {
"title": "ARCTIC Ocean and Sea-Ice Sigma-Nought",
"product_id": "SEAICE_ARC_PHY_L3M_NRT_011_017",
"thumbnail": "https://catalogue.marine.copernicus.eu/documents/IMG/SEAICE_ARC_PHY_L3M_NRT_011_017.png",
"description": "'''Short description:''' \nFor the Arctic Ocean - multiple Sentinel-1 scenes, Sigma0 calibrated and noise-corrected, with individual geographical map projections over Svalbard and Greenland Sea regions.\n\n'''DOI (product) :''' \nhttps://doi.org/10.48670/moi-00124",
"providers": [
{
"name": "OSI-METNO-OSLO-NO (SD)",
"roles": [
"pointOfContact"
],
"url": null,
"email": "marine-servicedesk@met.no"
},
{
"name": "OSI-METNO-OSLO-NO (PM)",
"roles": [
"originator"
],
"url": null,
"email": "cecilie.wettre@met.no"
},
{
"name": "OSI-METNO-OSLO-NO (WPL)",
"roles": [
"custodian"
],
"url": null,
"email": "ositac-manager@met.no"
},
{
"name": "SIW-METNO-OSLO-NO",
"roles": [
"resourceProvider"
],
"url": null,
"email": "ositac-prod@met.no"
},
{
"name": "SIW-METNO-OSLO-NO",
"roles": [
"distributor"
],
"url": null,
"email": "cmems-tech@met.no"
}
],
"created": "2011-10-11",
"bbox": [
"-25.00",
"75.00",
"70.00",
"86.00"
],
"uri": "ftp://nrt.cmems-du.eu/Core/SEAICE_ARC_PHY_L3M_NRT_011_017/cmems_obs-si_arc_physic_nrt_L2-EW_PT1H-irr"
}
]
}
...
]
}
}
Check out the help:
> copernicus-marine describe --help
Usage: copernicus-marine describe [OPTIONS]
Options:
--one-line Output JSON on one line
--include-description Include product description in output
--include-datasets Include product dataset details in output
--include-providers Include product provider details in output
--include-keywords Include product keyword details in output
-c, --contains TEXT Filter catalogue output. Returns products with
attributes matching a string token
--overwrite-cache Force to refresh the catalogue by overwriting the
local cache
--help Show this message and exit.
Command subset
Download a dataset subset, based on dataset id, variable names and attributes slices:
> copernicus-marine subset -p METOFFICE-GLO-SST-L4-NRT-OBS-SST-V2 -v analysed_sst -v sea_ice_fraction -t 2021-01-01 2021-01-03 -g 0.0 0.1 0.0 0.1
< Login:
< Password:
< Trying to download as one file...
File downloaded to ./{dataset_id}.nc if not specified otherwise (through -o/--output-path and -f/--output-file options).
Check out the help:
> copernicus-marine subset --help
Usage: copernicus-marine subset [OPTIONS]
Downloads subsets of datasets as NetCDF files taking into account the server
data query limit. A 'dataset-id' (can be found via the 'copernicus-marine
describe' command) is required.
Example:
copernicus-marine subset --dataset-id METOFFICE-GLO-SST-L4-NRT-OBS-SST-V2
--variable analysed_sst --variable sea_ice_fraction --temporal-subset
2021-01-01 2021-01-02 --geographical-subset 0.0 0.1 0.0 0.1
copernicus-marine subset -i METOFFICE-GLO-SST-L4-NRT-OBS-SST-V2 -v
analysed_sst -v sea_ice_fraction -t 2021-01-01 2021-01-02 -g 0.0 0.1 0.0
0.1
Options:
-u, --dataset-url TEXT The full dataset URL option is mutually
exclusive with dataset_id.
-i, --dataset-id TEXT The dataset id option is mutually exclusive
with dataset_url.
--login TEXT
--password TEXT
-v, --variable TEXT Specify dataset variables
-g, --geographical-subset <FLOAT RANGE FLOAT RANGE FLOAT RANGE FLOAT RANGE>...
The geographical subset as minimal latitude,
maximal latitude, minimal longitude and
maximal longitude
-t, --temporal-subset <DATETIME DATETIME>...
The temporal subset as start datetime and
end datetime
-d, --depth-range <FLOAT RANGE FLOAT RANGE>...
The depth range in meters, if depth is a
dataset coordinate
-o, --output-path PATH The destination path for the downloaded
files. Default is the current directory
[required]
-f, --output-file PATH Concatenate the downloaded data in the given
file name (under the output path)
-l, --limit INTEGER Specify the download size limit (in MB) of
the Opendap server if it can't be provided
by the message error
--confirmation Print dataset metadata and ask for
confirmation before download
--force-protocol [WWW:OPENDAP|MYO:MOTU-SUB]
Force download through one of the available
protocols
--dry-run Flag to specify NOT to send the request to
external server. Returns the request instead
--help Show this message and exit.
Command native
Download a native file (or files), based on dataset id or path to files:
Example:
> copernicus-marine native -u ftp://my.cmems-du.eu/Core/NWSHELF_MULTIYEAR_BGC_004_011/cmems_mod_nws_bgc-pft_myint_7km-3D-diato_P1M-m/2022/
< Login:
< Password:
< You requested the download of the following files:
Core/NWSHELF_MULTIYEAR_BGC_004_011/cmems_mod_nws_bgc-pft_myint_7km-3D-diato_P1M-m/2022/metoffice_foam1_amm7_NWS_DIATO_CPWC_mm202207.nc - 3.27 MB
Core/NWSHELF_MULTIYEAR_BGC_004_011/cmems_mod_nws_bgc-pft_myint_7km-3D-diato_P1M-m/2022/metoffice_foam1_amm7_NWS_DIATO_CPWC_mm202208.nc - 3.29 MB
Core/NWSHELF_MULTIYEAR_BGC_004_011/cmems_mod_nws_bgc-pft_myint_7km-3D-diato_P1M-m/2022/metoffice_foam1_amm7_NWS_DIATO_CPWC_mm202209.nc - 3.28 MB
Core/NWSHELF_MULTIYEAR_BGC_004_011/cmems_mod_nws_bgc-pft_myint_7km-3D-diato_P1M-m/2022/metoffice_foam1_amm7_NWS_DIATO_CPWC_mm202210.nc - 3.26 MB
Core/NWSHELF_MULTIYEAR_BGC_004_011/cmems_mod_nws_bgc-pft_myint_7km-3D-diato_P1M-m/2022/metoffice_foam1_amm7_NWS_DIATO_CPWC_mm202211.nc - 3.26 MB
Core/NWSHELF_MULTIYEAR_BGC_004_011/cmems_mod_nws_bgc-pft_myint_7km-3D-diato_P1M-m/2022/metoffice_foam1_amm7_NWS_DIATO_CPWC_mm202212.nc - 3.26 MB
Total size of the download: 19.62 MB
Do you want to continue? [y/N]:
File(s) downloaded to ./{path}/{filename} if not specified otherwise:
- "--output-path" specifies a directory to dump the files in
- "--no-directories" to not recreate the folder structure
If not specified otherwise, after the header display with a summary of the request, the user is asked for confirmation:
- "--no-confirmation" to turn down the confirmation prompt
- "--show-outputnames" to display the full paths of the outputs files
Check out the help:
> copernicus-marine native --help
Usage: copernicus-marine native [OPTIONS]
Downloads native data files based on dataset_id or datafiles url path.
The function fetches the files recursively if a folder path is passed as
url. When provided a dataset id, all the files in the corresponding
folder will be downloaded.
By default for any download request, a summary of the request result is
displayed to the user and a confirmation is asked. This can be
turned down. Example:
copernicus-marine native -nd -o data_folder --dataset-id
cmems_mod_nws_bgc-pft_myint_7km-3D-diato_P1M-m
copernicus-marine native -nd -o data_folder --dataset-url
ftp://my.cmems-du.eu/Core/NWSHELF_MULTIYEAR_BGC_004_011/cmems_mod_nws_bgc-
pft_myint_7km-3D-diato_P1M-m
Options:
-u, --dataset-url TEXT Path to the data files option is mutually exclusive
with dataset_id.
-i, --dataset-id TEXT The dataset id option is mutually exclusive with
dataset_url.
--login TEXT
--password TEXT
-nd, --no-directories Option to not recreate folder hierarchy in ouput
directory.
--show-outputnames Option to display the names of the output files
before download.
-o, --output-path PATH The destination path for the downloaded files.
Default is the current directory [required]
--no-confirmation Ask for confirmation before download, after header
display
--dry-run Flag to specify NOT to send the request to external
server. Returns the request instead
--help Show this message and exit.
Installation
Using pip, for example:
pip install copernicus-marine-client
Technical details
This module is organized around two capabilities:
- a catalogue, parsed from web requests, that contains informations on the available datasets
- a downloader, to simplify the download of dataset files or subsets
The catalogue can be displayed by the user and is used by the downloader to link the user requests with files or subset of files to retrieve. The downloader will help the user download the needed datasets.
Project details
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