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Joint Atm

Joint Atmosphere Procucts

Joint Atm

The post-launch Joint Atmosphere Product contains a spectrum of key parameters gleaned from the complete set of standard at-launch Level 2 products: Aerosol, Water Vapor, Cloud, Profile, and Cloud Mask. The Joint Atmosphere product was designed to be small enough to minimize data transfer and storage requirements, yet robust enough to be useful to a significant number of MODIS data users. Scientific data sets (SDS's) contained within the Joint Atmosphere product cover a full set of high-interest parameters produced by the MODIS Atmosphere group, and are stored at 5-km and 10-km (at nadir) spatial resolutions. The ESDT names are MODATML2 (Terra) and MYDATML2 (Aqua). 

Problems in input 04_L2, 05_L2, 06_L2, 07_L2, and 35_L2 propagate into downsteam products

See the Known Problem pages for the input Level-2 products 04_L2 (Aerosol), 05_L2 (Water Vapor), 06_L2 (Cloud), 07_L2 (Profiles), and 35_L2 (Cloud Mask) by clicking on the links to the left. Any problem in these upstream products will propagate downsteam.  Users should be aware of any issues in the upstream products.

Gala Wind


Cloud Retrieval Group (L2 Cloud Product 06_L2)


Cloud Retrieval

Kerry Meyer


Cloud Retrieval Group


Cloud Retrieval

Steve Platnick

MODIS Atmosphere Team Lead


Algorithm Theoretical Basis Documents

Aerosol (04_L2)

Aerosol Product ATBD  (Updated February 2009)
Remer, Tanre, Kaufman, Levy, & Mattoo, 2009:
Algorithm for Remote Sensing of Tropospheric Aerosol from MODIS for Collection 005: Revision 2
Products: 04_L2. View PDF

Water Vapor (05_L2)

DOI Reference

MODIS Atmosphere L2 Joint Product

Data Object Identifier System

Dataset Short Name:
MODATML2 (Terra Platform)
MYDATML2 (Aqua Platform)

Dataset Long Name:
MODIS/Terra Level-2 (L2) Joint Atmosphere Product
MODIS/Aqua Level-2 (L2) Joint Atmosphere Product
(Swath, 5km and 10km Resolution)
(5 minute time-period HDF files)