Welcome to the MODIS Adaptive Processing System (MODAPS) Services website. The website is intended to provide user information concerning all aspects of MODAPS data production, archive, and distribution. The website is a companion to LAADS Web, which provides access to the data products archived by MODAPS in the Level 1 and Atmospheres Archive and Distribution System (LAADS).

As of August 9, 2006, LAADS Web is open for public access. See What's New for more information.

This website covers a very wide range of topics in considerable detail. The website has been designed to accommodate a range of users from "first-time" users who, perhaps, have very limited knowledge of MODIS and MODAPS services to experienced users who are searching for a specific detailed piece of information. To that end, the site includes summary material for the former (About) and a "Quick Links" feature that allows an experienced user to navigate to a detailed level in a rapid manner. Please send any comments or suggestions concerning the success, or otherwise, of this strategy to Michael Teague at michael.teague@sigmaspace.com.

A key factor in both the Goddard Earth Sciences (GES) DAAC and MODAPS services is that the GES DAAC functionality with respect to MODIS production, archive, and distribution services is in the process of transitioning to MODAPS. The historical services provided by the GES DAAC are both comprehensive and extensive and the transition to MODAPS is occurring over the period from the present until the end of September 2006. During this interval the specific services available from each organization will be changing significantly and these changes have the potential for causing confusion for the end users of both organizations. An overview of the transition plans is given in the About section and further details are given in the GES DAAC Transition Issues. It is recommended that all users should take the time to read the transition information in the About section. Both the GES DAAC and MODAPS will make every effort to keep end users informed as services change. For this site, recent changes are identified in What's New.

MODIS data archive and distribution and user support is being transitioned from the Goddard Earth Sciences (GES) DAAC to the MODIS Adaptive Processing System (MODAPS) as part of the NASA Earth Observing System Data and Information System (EOSDIS) evolution plan. Recent events in this transition and other MODAPS activities are given on this page.

These pages provide a summary of the types of services MODAPS provides.

These pages include production plans compared to actual production, the PGE versions presently included in production and their promotion history, a list of the current subscriptions, and ingest metrics.

These pages provide details concerning the products archived in LAADS and the associated data pools, instructions for accessing these data, data archive and distribution metrics, and a summary of the capabilities of the current and future operational versions of LAADS.

These pages provide access to the Level 1, atmospheres, and land PGE codes currently being used in Collection 5 data production. The requestor will be asked to complete a Software Useage Agreement.

These pages provide contact information and hours of operation for user support, contact information for all staff associated with MODIS data production, archive, and distribution, and metrics for user support services.

These pages identify the Quality Assurance (QA) process utilized for the Collection 5 atmospheres products, identifies which products have successfully passed the QA process, and lists any known issues.

This page provides the status of MODAPS systems.

These pages provides access to a variety of documents including production plans for Collection 5 reprocessing, the weekly MODAPS reports to the PI Processing (PIP) group, and the Algorithm Theoretical Basis Documents (ATBDs).

This page provides various links to sites related to MODAPS production including MODIS instrument information, satellite overpasses, and the MODIS discipline sites.

This page provides a list of frequently asked questions concerning MODAPS production and the LAADS archive and distribution system.