How can I avoid having to download files one by one from your FTP site?

QandAIn most Web browsers, you can use the tar-on-the-fly capability by simply appending a .tar extension to the directory name in the FTP address.

For example, to download all of the northern hemisphere files from the following FTP site, append .tar at the appropriate directory level:  ….DATASETS/nsidc0051_gsfc_nasateam_seaice/final-gsfc/north.tar

You can append a .tar anywhere in the file directory structure such as: ….DATASETS/nsidc0051_gsfc_nasateam_seaice/final-gsfc.tar

The previous example would be a much larger file however, as it would include both northern and southern hemisphere data. The browser should prompt for where to save the tar file.

Search and discover NSIDC data sets with our new search tool

How do I differentiate between sea ice data sets? Which ones have file formats that are easy for me to use? How many ice velocity data sets are offered at NSIDC? What are my options for downloading the data? NSIDC has been busily working to develop a Web tool to answer these questions and more. The new Scientific Data Search aims to help you discover the data sets most useful to you.

Scientific Data Search interface

This new tool replaces the previous NSIDC data set search tool. It is recommended for those who would like to explore the breadth of NSIDC’s data holdings.

Using the search tool’s interface, you can find which data sets contain a particular data parameter, such as snow cover, or which data sets were submitted by a specific Principal Investigator. Map and calendar controls also allow you to see which data sets intersect with your custom spatial area or temporal range.

The listing of results is designed to allow for quick scanning. Attributes are clearly displayed to facilitate selection. You can read more about a data set in your results list by clicking on the title, or you can click the ‘Get Data’ button if you are ready to download the data.

The ‘Get Data’ button expands to show you all the various alternatives for downloading or visualizing the data. Those of you who are familiar with the data offerings may appreciate the direct link to the FTP directory. Those who are looking for ways to subset the data will find direct access to tools such as the Reverb and Polaris data order interfaces.

Future enhancements to the search tool will allow for results to be narrowed by custom inputs and will allow for better comparison between similar data sets.

Please give the Scientific Data Search a try. We welcome your comments at nsidc@nsidc.org.

Scientific Data Search listing of results