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Microwave Limb Sounder

Welcome

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.

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Start Date
End Date
BrO HO2 CH3Cl CH3CN CH3OH
O3 H2O OH HOCl ClO
IWC HCl RHi HCN CO
N2O GPH Temperature HNO3 All

NEAR REAL-TIME DATA VIEWER

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

Latest Publications

  1. Yan, X., P. Konopka, F. Ploeger, M. Tao, R. Müller, M. Santee, J. Bian, and M. Riese, "El Niño Southern Oscillation influence on the Asian summer monsoon anticyclone," Atmos. Chem. Phys. 18, 11, 8079-8096, doi:10.5194/acp-18-8079-2018, 2018.   reprint  

  2. France, J.A., C.E. Randall, R.S. Lieberman, V.L. Harvey, S.D. Eckermann, D.E. Siskind, J.D. Lumpe, S.M. Bailey, J.N. Carstens, and J.M. Russell, "Local and Remote Planetary Wave Effects on Polar Mesospheric Clouds in the Northern Hemisphere in 2014," Journal of Geophysical Research: Atmospheres 123, doi:10.1029/2017jd028224, 2018.   reprint  

  3. Lee, J., D. Wu, A. Ruzmaikin, and J. Fontenla, "Solar cycle variations in mesospheric carbon monoxide," J. Atmos. Solar-Terr. Phys. 170, 21-34, doi:10.1016/j.jastp.2018.02.001, 2018.   reprint  

  4. Wargan, K., C. Orbe, S. Pawson, J. Ziemke, L. Oman, M. Olsen, L. Coy, and K.E. Knowland, "Recent Decline in Extratropical Lower Stratospheric Ozone Attributed to Circulation Changes," Geophys. Res. Lett., doi:10.1029/2018gl077406, 2018.   reprint  

  5. Witte, J., A. Thompson, H. Smit, H. Vömel, F. Posny, and R. Stübi, "First Reprocessing of Southern Hemisphere ADditional OZonesondes Profile Records: 3. Uncertainty in Ozone Profile and Total Column," Journal of Geophysical Research: Atmospheres 123, 6, 3243-3268, doi:10.1002/2017jd027791, 2018.   reprint  

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Aura MLS Anomaly Resolved - v4.23 Data Processing Resumed


The previously reported anomaly with Aura MLS that commenced on Monday 4 June 2018 has been successfully resolved. The instrument returned to its nominal operating configuration at 21:25 UT on Monday 11 June 2018. MLS v4.23 data are affected by the anomaly and will not be available for 4-11 June 2018 inclusive (2018d155 to 2018d162). Later versions of the MLS data processing algorithms may generate useful Level 2 data for this period, though such data will still be affected by the anomaly, particularly in the upper stratosphere and mesosphere.

The MLS Near Real Time data has also resumed and a separate communication has been sent to subscribers of those products.



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