MLS/Aura Near-Real-Time L2 Ozone (O3) Mixing Ratio V002 ML2O3_NRT at GES DISC

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Abstract: ML2O3_NRT is the EOS Aura Microwave Limb Sounder (MLS) Near-Real-Time (NRT) product for ozone (O3). This product contains daily O3 profiles taken from the 240 GHz band. The most recent 7 days of data are available. Spatial coverage is near-global (-82° to +82° latitude), with each profile spaced 1.5° or ~165 km along the orbit track (roughly 15 orbits per day). The recommended useful vertical ... View entire text
Related URL
Description: Land Atmosphere Near real-time Capabiltiy for EOS (LANCE) home page
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Geographic Coverage
Spatial coordinates   
  N: 82.0   S: -82.0   E: 180.0   W: -180.0
Min Altitude: 100 HPA Max Altitude: 0.2HPA

Data Set Citation
Dataset Originator/Creator: EOS MLS Science Team
Dataset Title: MLS/Aura Near-Real-Time L2 Ozone (O3) Mixing Ratio
Version: 002
Online Resource:
Temporal Coverage
Start Date: 2014-09-14
Stop Date: 2014-09-21
Data Resolution
Vertical Resolution: 3 km
Vertical Resolution Range: > 1 km
Temporal Resolution: 15 minutes
Temporal Resolution Range: 1 minute - < 1 hour
Quality The MLS NRT data are not as accurate as the retrievals that constitute the standard MLS products, but nevertheless the results are of scientific use and track the standard MLS products with reasonable fidelity. Zonal mean differences between the NRT and standard product v2.2 results are typically within 5 to 10% for pressures between 68 and 0.2 hPa. Comparisons between the two sets of stratospheric retrievals over many days reveal significant differences mostly for pressures of 100 hPa and larger.
Access Constraints You must register using the EOSDIS User Registration System
in order to access LANCE NRT data. You can register at
Ancillary Keywords
Data Set Progress
Data Center
Goddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA Supplemental Info
Data Center URL:

Data Center Personnel
Phone: 301-614-5224
Fax: 301-614-5268
Email: gsfc-help-disc at
Contact Address:
Goddard Earth Sciences Data and Information Services Center
Code 610.2
NASA Goddard Space Flight Center
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
Distribution Media: Online (FTP)
Distribution Size: 0.2MB
Distribution Format: HDF-EOS5 (Swath)
Fees: Free
Email: livesey at
Contact Address:
Mail Stop 183-701, Jet Propulsion Laboratory, 4800 Oak Grove Drive
City: Pasadena
Province or State: CA
Postal Code: 91109-8099
Country: USA
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Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2010-06-18
Last DIF Revision Date: 2013-04-16
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