Protocols to retrieve web-hosted data

Last updated on 2025-10-24 | Edit this page

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Overview

Questions

How do you write a lesson using Markdown and sandpaper?

Objectives

Understand the DAP protocol to access web hosted netcdf data
Access a NetCDF file using OpenDAP interface, via DAP protocol.(to be discussed)
Read a NetCDF file programatically, using DAP protocol - with open_dataset from xarray Python library.
Explore and manipulate a NetCDF file programatically.

Challenge

Exercise: TRUE or FALSE?

Is this statement true or false? > The xarray.open_data() function you used, has downladed the dataset file to your computer. Whay do you think so?

Show me the solution

No, the data has been accessed with the DAP protocol, which allows to explore and summarise the dimensions of the data, but they have not been downloaded to the computer.