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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NEAR REAL-TIME DATA VIEWER
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| Maps @ 46hPa; SO2 @ 147hPa and CO @ 215hPa |
Latest Publications
- Park, M., H. Worden, D. Kinnison, B. Gaubert, S. Tilmes, L. Emmons, M. Santee, L. Froidevaux, and C. Boone, "Fate of pollution emitted during the 2015 Indonesian Fire Season," Journal of Geophysical Research: Atmospheres, doi:10.1029/2020jd033474, 2021. reprint
- Singh, B.B., R. Krishnan, D.C. Ayantika, R.K. Vellore, T.P. Sabin, K.R. Kumar, S. Brunamonti, S. Hanumanthu, T. Jorge, P. Oelsner, S. Sonbawne, M. Naja, S. Fadnavis, and T.P.M.K.S. , "Linkage of water vapor distribution in the lower stratosphere to organized Asian summer monsoon convection," Climate Dynamics, doi:10.1007/s00382-021-05772-2, 2021. reprint
- Babu, S.R., M.V. Ratnam, G. Basha, S. Pani, and N. Lin, "Structure, dynamics, and trace gas variability within the Asian summer monsoon anticyclone in the extreme El Niño of 2015–2016," Atmos. Chem. Phys. 21, 7, 5533-5547, doi:10.5194/acp-21-5533-2021, 2021. reprint
- Tang, Q., M. Prather, J. Hsu, D. Ruiz, P. Cameron-Smith, S. Xie, and J. Golaz, "Evaluation of the interactive stratospheric ozone O3v2 module in the E3SM version 1 Earth system model," Geoscientific Model Development 14, 3, 1219-1236, doi:10.5194/gmd-14-1219-2021, 2021. reprint
- Lu, J., F. Xie, H. Tian, and J. Luo, "Impacts of Ozone Changes in the Tropopause Layer on Stratospheric Water Vapor," Atmosphere 12, 3, 291, doi:10.3390/atmos12030291, 2021. reprint
MLS v5 Data Availability
The MLS team recommends that v5 data be used in preference to v4 for scientific studies. In particular, the v5 algorithms include a correction for a drift and some biases in the H2O product that was present in v4 and earlier versions. Similarly, a drift in v4 N2O has been reduced, although not eliminated. In order to assess the efficacy of these corrections going forward, the team plans to continue processing incoming MLS data with both the v4 and v5 algorithms for the foreseeable future.
Data, available from the GES-DISC, can be found through NASA's Earth Data Search tool.
> Full Announcement
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