Columbia University

IRI/LDEO Climate Data Library

The Climate Data Library run by the International Research Institute for Climate and Society and the Lamont-Doherty Earth Observatory, both Columbia University units. A long-running research-computing surface with its own URL-based dataset query language, OPeNDAP access and OGC WMS output, and historically one of the more genuinely programmable things any university operated. It is recorded here with a material access change: the landing pages still return 200, but every data path probed — /SOURCES/, the OPeNDAP endpoints and a WMS GetCapabilities request — now redirects to /auth/login. Presence without access, announced nowhere machine-readable.

GitHub

Documentation

📖
Documentation
https://iridl.ldeo.columbia.edu/dochelp/

Other Resources

🔗
Lifecycle
https://raw.githubusercontent.com/api-evangelist/columbia/refs/heads/main/lifecycle/columbia-lifecycle.yml

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API entry from apis.yml

apis.yml Raw ↑ 
aid: columbia:iri-data-library
name: IRI/LDEO Climate Data Library
description: 'The Climate Data Library run by the International Research Institute for Climate and Society
  and the Lamont-Doherty Earth Observatory, both Columbia University units. A long-running research-computing
  surface with its own URL-based dataset query language, OPeNDAP access and OGC WMS output, and historically
  one of the more genuinely programmable things any university operated. It is recorded here with a material
  access change: the landing pages still return 200, but every data path probed — /SOURCES/, the OPeNDAP
  endpoints and a WMS GetCapabilities request — now redirects to /auth/login. Presence without access,
  announced nowhere machine-readable.'
humanURL: https://iridl.ldeo.columbia.edu/
baseURL: https://iridl.ldeo.columbia.edu/SOURCES/
tags:
- Research Computing
- Climate Data
- OPeNDAP
- WMS
- Earth Science
- Gated
properties:
- type: Documentation
  url: https://iridl.ldeo.columbia.edu/dochelp/
- type: Lifecycle
  url: lifecycle/columbia-lifecycle.yml
x-operator: institution
x-operator-evidence: iridl.ldeo.columbia.edu resolves to iridls0.iri.columbia.edu / 129.236.110.88, Columbia
  University address space, operated by Columbia's IRI and Lamont-Doherty Earth Observatory.
x-access: gated
x-status: 302 to /auth/login on every data path, probed 2026-08-19