MLS Online Visualization and Analysis

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Parameters:	Ozone (O3) Temperature Water Vapor (H2O) Chlorine Monoxide (ClO) Carbon Monoxide (CO) Geopotential Height (GPH) Hydrogen Chloride (HCl) Hydrogen Cyanide (HCN) Nitric Acid (HNO3) Nitrous Oxide (N2O) Hydroxyl (OH) Relative Humidity with respect to Ice
Plot Type:	Vertical Profile, Parameter vs. Pressure
Upper Pressure Level (hPa) :	0.00100 0.00215 0.00464 0.0100 0.0215 0.0464 0.100 0.147 0.215 0.316 0.464 0.681 1.00 1.47 2.15 3.16 4.64 6.81 10.0 14.7 21.5 31.6 46.4 68.1 100 147 215 316 464 681 1000
Lower Pressure Level (hPa) :	0.00100 0.00215 0.00464 0.0100 0.0215 0.0464 0.100 0.147 0.215 0.316 0.464 0.681 1.00 1.47 2.15 3.16 4.64 6.81 10.0 14.7 21.5 31.6 46.4 68.1 100 147 215 316 464 681 1000 Recommended Pressure Level Settings
Time Selection:	Year: 2004 2005 2006 2007 Month: January February March April May June July August September October November December Day: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31   (2004/08/08-2007/02/28)
	Check the dates when MLS data are unavailable
X-axis Range:	Pre-defined User defined: Min Max
Orbit Selection:	Ascending(Day) Descending(Night) Both
Search Radius (km):	500 1000 1500
Max. Number of Profiles:	1 2 3 4 5 6

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Data Description

Atmospheric Profiles From MLS

The Microwave Limb Sounder (MLS) aboard the EOS Aura spacecraft was launched July 15, 2004. The instrument scans the Earth's limb in the forward direction of flight, viewing 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 humidity 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 latitude), with each profile spaced 1.5° (about 165 km) along the orbit track.

The data available here are version 1.5.1 representing the first public release of MLS. It is essential that users understand and apply the quality and status indicators contained in the data files. Please download and read the MLS data quality document (see below) that describes these quantities and also gives expected precision, resolution, and known artifacts. Users are encouraged to register with the MLS team at the Data User Registration web page to obtain updates and information from the MLS team.