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Microwave Limb Sounder


The Microwave Limb Sounder (MLS) experiments measure naturally-occurring microwave thermal emission from the limb (edge) of Earth's atmosphere to remotely sense vertical profiles of atmospheric gases, temperature, pressure, and cloud ice. The overall objective of these experiments is to provide information that will help improve our understanding of Earth's atmosphere and global change.


Start Date
End Date
CO N2O GPH Temperature HNO3 All


Current GMT day:    
Maps @ 46hPa; SO2 @ 147hPa and CO @ 215hPa

Latest Publications

  1. Dhomse, S.S., M.P. Chipperfield, W. Feng, R. Hossaini, G.W. Mann, and M.L. Santee, "Revisiting the hemispheric asymmetry in mid-latitude ozone changes following the Mount Pinatubo eruption: A 3-D model study," Geophys. Res. Lett., doi:10.1002/2015GL063052, in review.

  2. Schanz, A., K. Hocke, N. Kämpfer, S. Chabrillat, A. Inness, M. Palm, J. Notholt, I. Boyd, A. Parrish, and Y. Kasai, "The diurnal variation in stratospheric ozone from the MACC reanalysis, the ERA-Interim reanalysis, WACCM and Earth observation data: characteristics and intercomparison," Atmos. Chem. Phys. Discuss. 14, in review.

  3. Schwartz, M.J., G.L. Manney, M.I. Hegglin, N.J. Livesey, M.L. Santee, and W.H. Daffer, "Climatology and variability of trace gases in extratropical double-tropopause regions from MLS, HIRDLS, and ACE-FTS measurements," Journal of Geophysical Research: Atmospheres, doi:10.1002/2014JD021964, in press.

  4. Wang, K., K. Yahya, C. Hogrefe, G. Pouliot, C. Knote, A. Hodzic, R.S. Jose, J.L. Perez, P. Jiménez-Guerrero, R. Baroe, P. Makar, and R. Bennartz, "A multi-model assessment for the 2006 and 2010 simulations under the Air Quality Model Evaluation International Initiative AQMEII Phase 2 over North America: Part II. Evaluation of column variable predictions using satellite data," Atmospheric Environment, 10.1016/j.atmosenv.2014.07.044, in press.

  5. Merzlyakov, E.G., C. Jacobi, and T.V. Solovjova, "The year-to-year variability of the autumn transition dates in the mesosphere/lower thermosphere wind regime and its coupling with the dynamics of the stratosphere and troposphere," J. Atmos. Solar-Terr. Phys. 122, 9-17, 2015.

> More Publications

Mobile Website

mobile home
MLS now has a website that has been optimized for many mobile devices. On this site you can quickly look up information on data products, publications, and even view selected daily plots. Check it out on your iPhone, BlackBerry, or other web-enabled phone today!

>MLS Mobile Site

Site Manager: Nathaniel Livesey
Webmaster: Brian Knosp
JPL Clearance: CL# 97-0564