Frequently Asked Questions

What is the process for submitting data for archiving by your center?

Please contact User Services for assistance.

What tools and services do you offer to work with ASDC data?

Please visit our Tools and Services page.

What is the ASDC DAAC?

The Atmospheric Science Data Center is in the Science Directorate located at NASA Langley Research Center in Hampton, Virginia. The Data Center specializes in atmospheric data important to understanding the causes and processes of global climate change and the consequences of human activities on the climate.

How do I remove my name from the mailing list?

To stop receiving email updates, please visit our registration page.

Do you have any material that I could use in the classroom (elementary school/middle school/high school/college level)?

Please visit NASA Langley Research Center's Science Directorate Education and Public Outreach Website for classroom resources for all grade levels.

What is a DAAC?

Distributed Active Archive Centers are part of NASA's Earth Observing System Data and Information System (EOSDIS). Each of the twelve DAACs serve specific Earth science disciplines and provide the user community with data products, data information, user services, and tools unique to its particular science.

How do I add my name to a mailing list?

To receive email updates, please visit our registration page.

When will my data be available?

The availability of new data sets is dependent upon a number of factors, many of which are not under our direct control. This makes it difficult to give exact release dates for specific data sets. However, we would be happy to notify you when the item you desire does become available for distribution.

How do I provide feedback and suggestions?

To improve service to our customers, we encourage you to provide feedback about your experience with ASDC DAAC products and services using the ASDC Earthdata Forum. Understanding your needs is critical to the improvement of our site and success of ASDC DAAC operations.

Who do I contact for more information?

Please contact User Services for more information about the ASDC.

How do I download data sets?

Collection level pages include a "Data Distribution" column that will include options for downloading data.

I can't read the data I just downloaded.

For most of the data we archive, we also provide read software. If you need assistance locating or using read software, please contact User Services for assistance. When contacting User Services, please include answers to the following questions (where applicable):

Computer Architecture/Operating System Information:

  1. What model of computer are you using?
  2. What model of processor does your computer have?
  3. What operating system is in use?
  4. What version of the operating system are you using?


  1. Which window manager are you using?
  2. Which version of the window manager?

Compiler Information:

  1. Which C/Fortran compiler(s) are you using?
  2. Which version of the compiler are you using?

HDF Information:

  1. Which version of HDF is installed?


  1. Which viewer are you using?
  2. Which version of the viewer are you using?

I can't figure out how to use the Earthdata website.

I am experiencing problems with Earthdata Search.

If you experience problems with Earthdata Search please contact User Services for assistance. Please include any error messages received from Earthdata Search in your communication.