Accessing Raw Data (raw_data_access)

CrocoDash uses several datasets to setup the model. Data can be gathered directly from public datasources (including the CESM inputdata svn repository) or through helper functions in the CrocoDash Raw Data Access module. The Raw Data Access Module is an expandible, verifyable, object-oriented module with access functions to raw datasets used in CrocoDash. This document explains what it is and what you can do to add more to it, if you would like to!

Specific datasets can either be accessed directly through the data access module or be chosen by adding arguments to the case.configure_forcings function. Check out the demo here.

Users can check if datasets are accessible at this link.

Please see below for available datasets.

Data Product Registry

Product	Description	Link
cesm_pop_output	CESM ocean output (POP2 grid) for use as IC and OBC, including CESM-HR FOSI and CESM2 Large Ensemble (LENS2)	https://gdex.ucar.edu/datasets/d267000/
cesm_mom_output	Native MOM6 output (full history/diagnostic files, or diag_table-extracted cross-section slices) for use as IC/OBC forcing - e.g. for nesting a child domain inside an outer/parent MOM6 run.	https://mom6.readthedocs.io/en/main/api/generated/pages/Diagnostics.html
tpxo	TPXO (TOPEX/POSEIDON Global Tidal Ocean I think) is a public tidal model dataset	https://www.tpxo.net/global
cesm inputdata	The CESM Input SVN repo holds all files CrocoDash exposes publicly themselves at the following repo link	https://svn-ccsm-inputdata.cgd.ucar.edu/trunk/inputdata/ocn/mom/croc
gebco	GEBCO (General Bathymetric Chart of the Ocean) is a public dataset of global ocean bathymetry	https://www.gebco.net/data_and_products/gridded_bathymetry_data/#global
glofas	GLOFAS (Global Flood Awareness System) is a public river discharge/runoff Product	https://ewds.climate.copernicus.eu/datasets/cems-glofas-historical?tab=download
glorys	GLORYS (Global Ocean Physics Reanalysis) is a public dataset provided through the copernicus marine service.	https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_PHY_001_030/description
seawifs	SEAWIFS is a Chlorophyll Dataset for MOM6	https://oceandata.sci.gsfc.nasa.gov/getfile/SEASTAR_SEAWIFS_GAC.19980201_20100228.L3m.MC.CHL.chlor_a.9km.nc
srtm	SRTM15+ is a global 15 arc-second resolution bathymetry/topography dataset compiled from SRTM land topography and satellite-derived ocean bathymetry.	https://topex.ucsd.edu/WWW_html/srtm15_plus.html

CrocoDash Data Access Module

CrocoDash has a data_access module for accessing various datasets. Please see below for a table of available methods.

Data Access Registry

Product	Function	Type	Description
cesm_pop_output	get_cesm_single_variable_data	python	Gets CESM single-variable-per-file (tseries) ocean data from a given path (by default a POP-MARBL run) — the standard CESM postprocessed output organization, one variable per file series with the date range encoded in the filename. Covers both CESM-HR FOSI and CESM2-LENS2 (pass member to select an ensemble member).
cesm_mom_output	get_mom6_output_data	python	Reads native MOM6 output (full history/diagnostic files, or diag_table-extracted cross-section slices) from any directory and subsets to a lat/lon bounding box — e.g. for nesting a child domain inside an outer/parent MOM6 run.
cesm_mom_output	get_mom6_single_variable_data	python	Gets native MOM6 output that’s organized in the CESM single-variable-per-file (tseries) convention instead of one multi-variable file per region/timestep — some parent runs post-process their history output this way before archiving it.
gebco	get_gebco_data_with_python	python	Python request for global bathymetry data
gebco	get_gebco_data_script	script	get script to download global bathymetry data
glofas	get_global_data_with_python	python	Gets glofas raw data through the cdsapi package
glofas	get_processed_global_glofas_script_for_cli	script	Generates bash script for access to CESM Inputdata processed glofas data
glorys	get_glorys_data_from_rda	python	Gathers GLORYS data from RDA on computers with access to glade/rda
glorys	get_glorys_data_from_cds_api	python	Python request with copernicusmarine api
glorys	get_glorys_data_script_for_cli	script	Generates bash script for direct CLI run with the copernicusmarine package
seawifs	get_global_seawifs_script_for_cli	script	Generates bash script for direct CLI access to chlorophyll data (No Package Required)
seawifs	get_processed_global_seawifs_script_for_cli	script	Generates bash script for direct CLI access to processed chlorophyll data (No Package Required)
srtm	get_srtm_data_with_python	python	Python download of the SRTM15+ global bathymetry NetCDF file
srtm	get_srtm_data_script	script	Bash script to download the SRTM15+ global bathymetry NetCDF file

Want to add more?

Interested in adding your own spin on a dataset? Maybe with alternative metadata? Check our our additional docs: Adding Raw Data Products