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Delaware Environmental Observing System

DEOS Network API Access Request

This site provides access to an application programming interface (API) for data from the Delaware Environmental Observing System (DEOS) Network, which is operated by the Center for Environmental Monitoring and Analysis (CEMA) at the University of Delaware. The API's end points publish real-time data from the DEOS Network, summary data that are derived from aggregated DEOS data, and metadata about the stations and what they measure. This API is ideal for scientific programming and application development, though it is not restricted to any particular use or application. Access to the API is free, and requires registering for an API key. This registration step ensures that we can provide data through the API as reliably as possible to all our users. We encourage you to review the documentation and the code examples at the GitHub repository before developing any software to use the API. These resources are available at: Software Documentation: DEOS Services API Guide GitHub Code Examples: Repositoriy Please pay careful attention to the data disclaimer and suggested citation below. For more information about the DEOS Network, visit https://www.deos.udel.edu. If you have any questions about the API, please contact us at cema-info [at] udel [dot] edu.

To register fill out and submit the following form. Items in bold marked with asterisk(*) are required.



Use the Organization field to specify department, agency, company name, etc. If Other, please specify as clearly as possible in the Organization field

End-User License Agreement (EULA)

WARRANTY, LIMITATION OF LIABILITY, AND INDEMNIFICATION:

The Delaware Environmental Observing System (DEOS) is operated to the highest professional standards by the Center for Environmental Monitoring and Analysis (CEMA) at the University of Delaware. However, we make no warranties, either express or implied, as to any matter whatsoever, including without limitation, condition of the licensed material, its merchantability, or its fitness for any particular purpose. In no event shall we, CEMA or the University of Delaware, our agents, or employees be liable for any special, incidental, consequential, or other damages whatsoever, arising out of the use of or inability to use the above API services, even if we have advised of the possibility of such damages. You agree to indemnify us from any and all liability for costs, claims, and any litigation arising out of your use or access to any and all DEOS Network data or products. No redistribution of DEOS data or products shall be allowed under any circumstances without prior permission of CEMA.
Users who provide DEOS Network data or products on their website or in any published material shall reference the data by providing the following suggested citation as a reference in their publication or on their webpage:

The Delaware Environmental Observing System (DEOS) is operated by the Center for Environmental Monitoring & Analysis (CEMA). Please use the following data citation if you are using this data in scientific research:

  • Center for Environmental Monitoring and Analysis (2004). DEOS Network Real-time and Historical Data [Dataset]. University of Delaware.
    https://doi.org/10.71926/qcz3-mb31