Search Help
Global Change Master Directory (GCMD)
UARS Microwave Limb Sounder (MLS) Level 3AT V005 (UARML3AT) at GES DISC
Entry ID: UARML3AT_005


Summary
Abstract: The Microwave Limb Sounder (MLS) Level 3AT data product consists of daily, 4 degree increment latitude-ordered vertical profiles of temperature, geopotential height, concentrations of O3, H2O, CH3CN, ClO, HNO3, and SO2, as well as upper tropospheric humidity (UTH). The insrument measures in the microwave spectral region at frequencies of 63, 183 and 205 GHz. MLS was flown on NASA's Upper Atmosphere Research Satellite (UARS) and designed to measure the chemical composition of the stratosphere and mesosphere, relationship between chlorine monoxide and ozone destruction. Limb measurements were made in the altitude range between 10 and 85 km at about 2.5 km resolution. Data were collected between latitude 34S and 80N and 80S and 34N, alternating each satellite yaw cycle of about 36 days. The MLS Level 3AT data were processed with the version 5 algorithm, except H2O and HNO3 which are version 6, and SO2 and UTH which remained version 4. Note: H2O and O3 at 183 GHz data are available only through April 15, 1993 when the 183 GHz radiometer failed.

The MLS level 3AT product consists of 10 granules per day. A data granule is one MLS species or subtype per day.

Data are on the UARS standard pressure levels (in mbars) given by:

P(i) = 1000 * 10**(-i/6) for i = 0, 1, 2, ...

Each of the 10 MLS granules is accompanied by an additional parameter file, designated as level 3TP. The parameter file, contains the additional ancillary and quality information, as well as total column amounts not found in the 3AT files. The data files are available in a binary record oriented format.

Related URL
Link: View Related Information


Link: View Related Information
Description: Access the data via HTTPS.


Link: View Related Information
Description: Use the Earthdata Search to find and retrieve data sets across multiple data centers.


Link: View Related Information
Description: The UARS Project Homepage.


Link: View Related Information
Description: README

Geographic Coverage
 N: 80.0 S: -80.0  E: 180.0  W: -180.0

Data Set Citation
Dataset Creator: Waters, Joe W., et al.
Dataset Title: UARS Microwave Limb Sounder (MLS) Level 3AT V005
Dataset Series Name: UARML3AT
Dataset Release Date: 2001-01-09T00:00:00.000Z
Dataset Release Place: Greenbelt, MD, USA
Dataset Publisher: Goddard Earth Sciences Data and Information Services Center (GES DISC)
Version: 005
Data Presentation Form: Digital Science Data
Online Resource: https://disc.gsfc.nasa.gov/datacollection/UARML3AT_005.html


Temporal Coverage
Start Date: 1991-09-18
Stop Date: 1999-07-28


Location Keywords
GEOGRAPHIC REGION > GLOBAL
VERTICAL LOCATION > MESOSPHERE
VERTICAL LOCATION > STRATOSPHERE
VERTICAL LOCATION > TROPOSPHERE


Science Keywords
ATMOSPHERE >ALTITUDE >GEOPOTENTIAL HEIGHT    [Definition]
ATMOSPHERE >ATMOSPHERIC CHEMISTRY >CARBON AND HYDROCARBON COMPOUNDS >METHYL CYANIDE    [Definition]
ATMOSPHERE >ATMOSPHERIC CHEMISTRY >HALOCARBONS AND HALOGENS >CHLORINE MONOXIDE    [Definition]
ATMOSPHERE >ATMOSPHERIC CHEMISTRY >NITROGEN COMPOUNDS >NITRIC ACID    [Definition]
ATMOSPHERE >ATMOSPHERIC CHEMISTRY >OXYGEN COMPOUNDS >OZONE    [Definition]
ATMOSPHERE >ATMOSPHERIC CHEMISTRY >SULFUR COMPOUNDS >SULFUR DIOXIDE    [Definition]
ATMOSPHERE >ATMOSPHERIC WATER VAPOR >WATER VAPOR PROFILES >WATER VAPOR MIXING RATIO PROFILES    [Definition]
ATMOSPHERE >ATMOSPHERIC WATER VAPOR >WATER VAPOR INDICATORS >HUMIDITY >RELATIVE HUMIDITY    [Definition]
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >UPPER AIR TEMPERATURE    [Definition]


Platform
UARS >Upper Atmosphere Research Satellite    [Information]


Instrument
MLS >Microwave Limb Sounder    [Information]


Project
UARS >Upper Atmosphere Research Satellite    [Information]


Keywords
CH3CN
CLO
GPH
H2O
HNO3
O3
SO2
UTH


Data Set Progress
COMPLETE


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    [Information]
Data Center URL: https://disc.gsfc.nasa.gov/

Data Center Personnel
Name: GES DISC HELP DESK SUPPORT GROUP
Phone: 301-614-5224
Fax: 301-614-5268
Email: gsfc-help-disc at lists.nasa.gov
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
Distribution_Media: Online Archive
Distribution_Size: 111.3 MB
Distribution_Format: binary
Fees: None


Personnel
GES DISC HELP DESK SUPPORT GROUP
Role: TECHNICAL CONTACT
Phone: 301-614-5224
Fax: 301-614-5268
Email: gsfc-help-disc at lists.nasa.gov
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


JAMES EDWARD JOHNSON
Role: METADATA AUTHOR
Phone: 301-614-5121
Email: James.Johnson at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Code 610.2
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA


JOE W. WATERS
Role: INVESTIGATOR
Email: joe at mls.jpl.nasa.gov
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


Extended Metadata Properties
(Click to view more)

Creation and Review Dates
DIF Creation Date: 2007-02-26
Last DIF Revision Date: 2018-11-30



-->