GES_DISC_ML2CH3OH_V004
MLS/Aura Level 2 Methanol (CH3OH) Mixing Ratio V004 (ML2CH3OH) at GES DISC
Santee, M., Froidevaux, L., Livesey, N. and Read, W.
MLS/Aura Level 2 Methanol (CH3OH) Mixing Ratio
ML2CH3OH
2015-02-19
Greenbelt, MD, USA
NASA Goddard Earth Science Data and Information Services Center
004
Digital Science Data
10.5067/AURA/MLS/DATA2022
http://disc.gsfc.nasa.gov/datacollection/ML2CH3OH_V004.html
TECHNICAL CONTACT
MLS SCIENCE TEAM
data@mls.jpl.nasa.gov
818-354-6716
Mail Stop 183-701, Jet Propulsion Laboratory
4800 Oak Grove Drive
Pasadena
CA
91109-8099
USA
INVESTIGATOR
NATHANIEL
LIVESEY
livesey@mls.jpl.nasa.gov
Mail Stop 183-701, Jet Propulsion Laboratory, 4800 Oak Grove Drive
Pasadena
CA
91109-8099
USA
DIF AUTHOR
JAMES
EDWARD
JOHNSON
James.Johnson@nasa.gov
301-614-5121
NASA Goddard Space Flight Center
Code 610.2
Greenbelt
MD
20771
USA
EARTH SCIENCE
ATMOSPHERE
ATMOSPHERIC CHEMISTRY
HALOCARBONS AND HALOGENS
METHANOL
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
CH3OH
EOSDIS
MLS
Microwave Limb Sounder
AURA
Earth Observing System, Aura
2004-08-08
IN WORK
-82.0
82.0
-180.0
180.0
147 HPA
100 HPA
GEOGRAPHIC REGION
GLOBAL
VERTICAL LOCATION
STRATOSPHERE
300 km at limb tagent point (along-track)
3 km at limb tagent point (cross-track)
100 km - < 250 km or approximately 1 degree - < 2.5 degrees
3 - 6 km
Twice per day; Day and Night; Orbital repeat cycle 16 days
AURA
Earth Observing System (EOS), AURA
At this time it is recommended that these data not be used pending further validation!
Users are encouraged to register with the MLS science team at https://mls.jpl.nasa.gov/forms/reguser.php to obtain updates and information about this data product.
English
NASA/GSFC/SED/ESD/GCDC/GESDISC
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
http://disc.gsfc.nasa.gov/
DATA CENTER CONTACT
GES DISC HELP DESK SUPPORT GROUP
gsfc-help-disc@lists.nasa.gov
301-614-5224
301-614-5268
Goddard Earth Sciences Data and Information Services Center
Code 610.2
NASA Goddard Space Flight Center
Greenbelt
MD
20771
USA
Online (FTP)
1.0 MB per file
HDF-EOS5 (Swath)
None
* Waters, J.W., et al., "The Earth Observing System Microwave Limb Sounder (EOS MLS) on the Aura satellite", IEEE Trans. Geosci. Remote Sensing 44, no. 5, 1075-1092, May 2006.
At this time it is recommended that these data not be used pending further validation.
ML2CH3OH is the EOS Aura Microwave Limb Sounder (MLS) standard product for methanol derived from radiances measured by the 640 GHz radiometer. The current version is 4.2. Data coverage is complete from August 8, 2004 to current. Spatial coverage is near-global (-82 deg. to +82 deg. latitude), with each profile spaced 1.5 deg. or ~165 km along the orbit track (roughly 15 orbits per day). The recommended useful vertical range is between 147 and 100 hPa, and the vertical resolution range is about 4-5 km. Users of the ML2CH3OH data product should read section 3.5 of the EOS MLS Level 2 Version 4 Quality Document for more information (http://mls.jpl.nasa.gov/data/v4-2_data_quality_document.pdf).
Users are encouraged to register with the MLS science team at https://mls.jpl.nasa.gov/forms/reguser.php to obtain updates and information about this data product.
The data are stored in the version 5 EOS Hierarchical Data Format (HDF-EOS5), which is based on the version 5 Hierarchical Data Format, or HDF5. Each file contains one swath object (with profile data), with a set of data and geolocation fields, swath attributes, and metadata. The data fields include the geophysical parameter values and precision (standard deviation), convergence values, data quality, and a status flag. The geolocation fields include a time stamp in TAI-93 format (seconds since January 1, 1993), geodetic latitude and longitude, and pressure level values, as well as local solar time, solar zenith angle, line of sight angle, and orbit geodetic angle. There is one file per day.
GET DATA
ON-LINE ARCHIVE
ftp://acdisc.gsfc.nasa.gov/data/s4pa/Aura_MLS_Level2/ML2CH3OH.004/
Access the data via anonymous FTP.
GET DATA
MIRADOR
http://mirador.gsfc.nasa.gov/cgi-bin/mirador/homepageAlt.pl?keyword=ML2CH3OH 004
Access to the ML2CH3OH data product from the GES-DISC Mirador fast data search and download system.
GET DATA
OPENDAP DIRECTORY (DODS)
http://acdisc.gsfc.nasa.gov/opendap/HDF-EOS5/Aura_MLS_Level2/ML2CH3OH.004/contents.html
Access the data via the OPeNDAP protocol.
GET DATA
THREDDS CATALOG
http://acdisc.gsfc.nasa.gov/opendap/HDF-EOS5/Aura_MLS_Level2/ML2CH3OH.004/catalog.xml
Access the data using the THREDDS Catalog.
GET DATA
REVERB
http://reverb.echo.nasa.gov/reverb/#utf8=%E2%9C%93&spatial_map=satellite&spatial_type=rectangle&keywords=GES_DISC_ML2CH3OH_V004
Reverb, the ECHO client, allows one to search and retrieve data across multiple data archive centers.
VIEW PROJECT HOME PAGE
http://mls.jpl.nasa.gov/
The MLS home page at NASA JPL.
VIEW RELATED INFORMATION
USER'S GUIDE
http://acdisc.gesdisc.eosdis.nasa.gov/data/s4pa//Aura_MLS_Level2/ML2CH3OH.004/doc/Aura-MLS_DataQuality_v4-2x-rev1-0.pdf
product README file
USA/NASA
ECHO
GCMD
CEOS IDN DIF
VERSION 9.9.3
2014-10-16
2016-01-20
2015-02-19: Added data quality and description document to related URL and updated vertical range as needed.
2015-06-04, J. Johnson cleaned up Science Keywords, Project and Privacy.
2016-06-01
True
gov.nasa.gsfc.gcmd
metadata.extraction_date
2016-01-29 12:13:42
gov.nasa.gsfc.gcmd
metadata.keyword_version
8.1
ML2CH3OH