GES Distributed Active Archive Center
MLS On-line Data Access
The Microwave Limb Sounder (MLS) views microwave emissions at the 118, 190, 240 and 640 GHz, and 2.5 THz spectral regions from the stratosphere into the upper troposphere. These measurements are used to derive vertical profiles of O3, H2O, BrO, ClO, HCl, HOCl, OH, HO2, HCN, CO, HNO3, N2O, and SO2 mixing ratios, as well as relative humidty with respect to ice, cloud water/ice content, geopotential height and temperature. The vertical resolution of these data is about 3 km, and the spatial coverage is near-global (-82° to +82°), with each profile spaced about 165 km along the orbit track (every 24.7 seconds).
The data are grouped by Processing Level, and the link in the "Level" column below will take you to a page listing available data products.
| Level | Description | Begin Date | End Date | Number of Items |
|---|---|---|---|---|
| L1_V001 | Daily level 1 calibrated radiance data products at full temporal resolution (every 24.7 seconds) in the HDF5 (dataset/table model) file format. | 2004-08-08 00:00:00 | 2007-02-28 23:59:59 | 3617 |
| L1_V002 | Daily level 1 calibrated radiance data products at full temporal resolution (every 24.7 seconds) in the HDF5 (dataset/table model) file format. | 2004-08-08 00:00:00 | 2009-05-11 23:59:59 | 6799 |
| L2_V001 | Daily level 2 geolocated geophysical parameter data products at full instrument resolution in the HDF-EOS5 (swath model) file format. SPATIAL SUBSETTING is available. | 2004-08-08 00:00:00 | 2007-02-28 23:59:59 | 16596 |
| L2_V002 | Daily level 2 geolocated geophysical parameter data products at full instrument resolution in the HDF-EOS5 (swath model) file format. SPATIAL SUBSETTING is available. | 2004-08-08 00:00:00 | 2009-05-10 23:59:59 | 35609 |
Documentation and software for the various MLS data products are available. Additionally, we maintain a list of links to sites outside the GES DAAC related to atmospheric chemistry.
Aura OMI data products are available from the GES DISC DAAC. Data from the UARS MLS instrument (Sept. 1991 - July 1999) are also available.
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Responsible NASA Official: Steve Kempler
Web Curator: Anthony Drake |
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