NASA DAAC Data Services Now Accessible as an API Endpoint

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Are you looking to customize MODIS, GLAS, AMSR-E, or SMAP data? While customization options such as subsetting and reformatting are currently available through the NASA Earthdata Search web application, these services can now be accessed programmatically as a synchronous REST interface.

How does the API work?

Programmatic access to these data services is provided via an HTTPS URL. The programmatic access endpoint contains key-value pairs that utilize the Common Metadata Repository (CMR) to find the requested data, as well as the subsetting, reformatting, and reprojecting services to customize those data. When utilizing this API in a command line environment, the customized output is returned as either a single file or multi-file zip downloaded directly to your machine’s current working directory.

Programmatic access architecture

Architecture of the EOSDIS Service Interface. CMR and data processing services are called via programmatic API access. Source: https://developer.earthdata.nasa.gov/sdps/programmatic-access-docs

Why access data services programmatically?

While the NASA Earthdata Search application provides a comprehensive web-based search and order interface, you may be looking for a more direct access point for customized data. Using the new API feature, these data can now be easily accessed using a variety of approaches including URL transfer protocols (e.g. curl: https://curl.haxx.se/) and MATLAB readers (e.g. https://www.mathworks.com/help/matlab/ref/geotiffread.html). In addition, work is currently ongoing to provide OGC Web Coverage Service (WCS) compatibility, enabling data access through WCS-supported software such as ArcGIS, QGIS, and GeoServer.

Where can I learn more?

An overview guide to this API can be found at http://nsidc.org/support/how/how-do-i-programmatically-request-data-services. This guide walks you through the basic steps needed to construct the API, as well as resources to help you determine the customization options available for your data set(s) of interest. Comprehensive documentation provided by the API developers is also available on the Earthdata Developer Portal.

Comments? Concerns? Feedback?

Let us know! Email us at nsidc@nsidc.org to let us know how we can improve this API.

Help improve tools and services at NSIDC DAAC

The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is one of twelve NASA Earth Observing System Data and Information System (EOSDIS) data centers.  Several of the data sets distributed by NSIDC are part of the DAAC, including but not limited to MODIS, GLAS, AMSR-E, ICEBridge, and SSM/I. If you use one or several of these data sets, we’d like to hear what you think.

During September and October 2015, registered NSIDC DAAC data users will receive an email invitation from Claes Fornell International (CFI) Group on behalf of NASA to participate in a Web-based survey about the quality and usability of NSIDC DAAC tools and services. This email will be coming from ‘qualtrics-survey.com‘. Please check your spam filters to allow ‘qualtrics-survey.com‘.

If you receive the survey, please fill it out. It takes approximately ten minutes to complete the anonymous questionnaire. Optional comment fields are provided for additional feedback. Feedback from previous surveys has been used to guide development of NSIDC DAAC tools and services, such as NSIDC Data Search.

We also invite feedback on any of the data and services that NSIDC DAAC hosts at any time. Contact User Services at nsidc@nsidc.org.

Thank you in advance for your participation. Your feedback will provide insight as to how we can improve our tools and services, and thus help us to better serve you.

Help improve tools and services at NSIDC DAAC

The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is one of twelve NASA Earth Observing System Data and Information System (EOSDIS) data centers.  Several of the data sets distributed by NSIDC are part of the DAAC, including but not limited to MODIS, GLAS, AMSR-E, ICEBridge, and SSM/I. If you use one or several of these data sets, we’d like to hear what you think.

During September 2014, registered NSIDC DAAC data users will receive an email invitation from Claes Fornell International (CFI) Group on behalf of NASA to participate in a Web-based survey about the quality and usability of NSIDC DAAC tools and services. This email will be coming from ‘qualtrics-survey.com‘. Please check your spam filters to allow ‘qualtrics-survey.com‘.

If you receive the survey, please fill it out. It takes approximately ten minutes to complete the anonymous questionnaire. Optional comment fields are provided for additional feedback. Feedback from previous surveys has been used to guide development of NSIDC DAAC tools and services, such as NSIDC Data Search.

We also invite feedback on any of the data and services that NSIDC DAAC hosts at any time. Contact User Services at nsidc@nsidc.org.

Thank you in advance for your participation. Your feedback will provide insight as to how we can improve our tools and services, and thus help us to better serve you.