Measurements Of Pollution In The Troposphere (MOPITT)

The MOPITT Mission


Artist depiction of MOPITT satellite-based instrument operating in space.


The MOPITT instrument in orbit.

Click for larger image.

MOPITT is an instrument flying on NASA's Earth Observing System Terra spacecraft, measuring tropospheric carbon monoxide (CO) on the global scale. MOPITT measurements enable scientists to analyze the distribution, transport, sources and sinks of CO, a trace gas produced by methane oxidation, hydrocarbons released by plants, fossil fuel consumption and biomass burning. MOPITT has been operational since March 2000.

MOPITT Product Availability

MOPITT Version 8 and Version 9 Level 2 and Level 3 products are now available for the entire MOPITT mission.  MOPITT V8 and V9 products for data acquired after the most recent hot calibration (usually in March) are considered to be provisional ("beta"), subject to recalibration, while data taken before the hot calibration are considered archival quality.   Generally, V8 and V9 Level 2 and Level 3 products should become available between three weeks and two months after the actual observations; this data latency is the result of the dependency on the MERRA reanalysis. Near-real-time data are also available, but should not be used for trend analysis. Version 7 Level 2 and Level 3 products were discontinued as of March, 2020.  See Data Products for descriptions of the different products and status of validation.  User's Guides available on the Publications page should be consulted before attempting to analyze the MOPITT products.

MOPITT products are publicly available from NASA through the following links:


MOPITT Product Visualization

MOPITT rolling 5-day composite MOPITT rolling 5-day composite MOPITT rolling 5-day composite

Current 5-day composites for World, CONUS, and Colorado. Click for larger images.

*** NEW *** Near-Real-Time MOPITT imagery in Worldview

Global plots of MOPITT CO products at 1 degree horizontal resolution can be viewed for each day and month of the MOPITT mission.

V9 Plots


V8 Plots


V7 Plots


V6 Plots


V5 Plots


V4 Plots


V3 Plots


  • Interactive Data Viewers for V8 and V9 MOPITT products


Please direct questions/comments about this page to:

Helen Worden