Climate Data Gateway
at NCAR

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Overview

The NCAR Climate Data Gateway provides a range services enabling scientific data discovery, access and use.

The NCAR Climate Data Gateway supports community access to data products from many of NCAR's community modeling efforts, including the IPCC, PCM, AMPS, CESM, NARCCAP, and NMME activities.

Data products are generally open and available, however, download access may require a login.

Registration

Downloading data may require registration.

To register click on the Sign in menu at the top of the page and then click Register and follow the steps.

You will receive an email regarding confirming your account. Please follow the instructions in order to activate your ESG federation account. Please be aware that your "spam" filter may intercept these messages.

Groups

Downloading data may require membership in an appropriate group.

You will be automatically presented a group membership questionnaire when required.

Certain membership requests may take some time to process. You will be contacted by email regarding the status of new account registration and group membership requests. Please be aware that your "spam" filter may intercept these messages.

Login

You are assigned an OpenId when you register. Please use only one OpenId to login to the Gateway.

This OpenId is your identity which allows you access to the many gateway services.

Your registration email contains your OpenId. You are strongly urged to record you OpenId when you receive it.

Enter your OpenId when you see an OpenId login box and click the Login button. Next enter your password.

You may be asked to enter your OpenId in order to re-identify with the Gateway services periodically, for example when accessing services such as data servers for file downloads.

Data Download

Data may be accessed by direct link for individual files or a Wget script for multiple files.

When you have selected a dataset of interest, click the Download files for this collection link to show the Download Data page. The Download Data page is where you can chose which files to download.

Wget Script

Wget is a command line tool available on most Unix systems. We recommend Linux for this download option.

Wget lets you download multiple files selected in the Download Data page.

On the Download Data page you may select files by checkbox. You can download all the files by checking the small box on the left in the first line at the top of the table(s) or you can select individual files by clicking on the boxes in the left column of the table(s). The file listing can be filtered with the Sub Select File Results tool on the left side of the page.

After selecting all the files you want, click on the Download All Selected Files button at the top right of the window. You'll then be shown the number of files and the volume of the data you have requested. When you click on Download you'll get a Wget script you can run to retrieve the data files themselves.

Certain data systems require a MyProxy certificate for access. The Wget script will generate a MyProxy certificate.

Wget version 1.13 is recommended. Wget version 1.12 or greater is required. Earlier versions may not download files exceeding 2Gb in size.
Mac OSX users may experience difficulty with WGet due to version incompatibilities.

Direct link

You can download individual files by clicking on the blue download links in the far right column of the table in the Download Data page. You may need to re-enter your OpenId when downloading in this way.

Further Information

Any questions, comments, or concerns may be emailed to: esg-support@earthsystemgrid.org

Wget Help

MyProxy Help