GES_DISC_ML2IWC_V004
MLS/Aura Level 2 Cloud Ice Product V004 (ML2IWC) at GES DISC
Lambert, A., Livesey, N. and Read, W.
MLS/Aura Level 2 Cloud Ice Product
ML2IWC
2015-02-19
Greenbelt, MD, USA
NASA Goddard Earth Science Data and Information Services Center
004
Digital Science Data
10.5067/AURA/MLS/DATA2015
http://disc.gsfc.nasa.gov/datacollection/ML2IWC_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
CLOUDS
CLOUD MICROPHYSICS
CLOUD LIQUID WATER/ICE
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
MLS
Microwave Limb Sounder
AURA
Earth Observing System, Aura
2004-08-08
IN WORK
-82.0
82.0
-180.0
180.0
215 HPA
82.5 HPA
GEOGRAPHIC REGION
GLOBAL
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
1.5 - 3 km
Twice per day; Day and Night; Orbital repeat cycle 16 days
AURA
Earth Observing System (EOS), AURA
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 (HTTP)
0.57 MB per file
HDF-EOS5 (Swath)
* Hocking, J., and C.P. Davis, "MLS Ice Water Content and Horizontally Finite Clouds", IEEE Trans. Geosci. Remote Sensing, in review.
* Su, H., J.H. Jiang, X. Liu, J.E. Penner, W.G. Read, S.T. Massie, M.R. Schoeberl, P. Colarco, N.J. Livesey, and M.L. Santee, "Enhanced Water Vapor Transport to the Stratosphere by Pollutants in Asia", J. Climate, in review.
* Wu, L., H. Su, and J.H. Jiang, "Evaluation of the WRF-Chem simulations for biomass burning over South America", J. Geophys. Res., 2010JD015304 , in review.
* Eriksson, P., B. Rydberg, M. Johnston, D.P. Murtagh, H. Struthers, S. Farrachat, and U. Lohmann, "Diurnal variations of humidity and ice water content in the tropical upper troposphere", Atmos. Chem. Phys. 10, 11519-11533, doi:10.5194/acp-10-11519-2010, 2010.
* Jiang, J.H., H. Su, S. Pawson, H.C. Liu, W. Read, J.W. Waters, M. Santee, D.L. Wu, M. Schwartz, N. Livesey, A. Lambert, R. Fuller, and J.N. Lee, "Five-year (2004-2009) Observations of Upper Tropospheric Water Vapor and Cloud Ice from MLS and Comparisons with GEOS-5 analyses", J. Geophys. Res. 115, D15103, doi:10.1029/2009JD013256, 2010.
* Jiang, J.H., H. Su, C. Zhai, S.T. Massie, M.R. Schoeberl, P.R. Colarco, S. Platnick, Y. Gu, and K-N. Liou, "Influence of convection and aerosol pollution on ice cloud particle effective radius", Atmos. Chem. Phys. Discuss. 10, 1-18, doi:10.5194/acpd-10-1-2010, 2010.
* Luo, M., C. Boxe, J.H. Jiang, R. Nassar, and N. Livesey, "Interpretation of Aura satellite observations of CO and aerosol index related to the December 2006 Australia fires", J. Geophys. Res. 114, 2853-2862, doi:10.1016/j.rse.2010.07.004, 2010.
* Chauhan, S., M. Hoepfner, G.P. Stiller, T. von Clarmann, B. Funke, N. Glatthor, U. Grabowski, A. Linden, S. Kellmann, M. Milz, T. Steck, H. Fischer, L. Froidevaux, A. Lambert, M. Santee, M. Schwartz, W.G. Read, and N.J. Livesey, "MIPAS reduced spectral resolution UTLS-1 mode measurements of temperature, O3, HNO3, N2O, H2O and relative humidity over ice: retrievals and comparison to MLS", Atmospheric Measurement Techniques 2, 337-353, 2009.
* Jiang, J.H., H. Su, S.T. Massie, P.R. Colarco, M.R. Schoeberl, and S. Platnick, "Aerosol-CO relationship and aerosol effect on Ice cloud particle size: Analyses from Aura Microwave Limb Sounder and Aqua Moderate Resolution Imaging Spectroradiometer observations", J. Geophys. Res. 114, D20207, doi:10.1029/2009JD012421, 2009.
* Rydberg, B., P. Eriksson, S.A. Buehler, and D.P. Murtagh, "Non-Gaussian Bayesian retrieval of tropical upper tropospheric cloud ice and water vapour from Odin-SMR measurements", Atmospheric Measurement Techniques 2, 621-637, 2009.
* Su, H., J.H. Jiang, G.L. Stephens, D.G. Vane, and N.J. Livesey, "Radiative effects of upper tropospheric clouds observed by Aura MLS and CloudSat", Geophys. Res. Lett. 36, L09815, doi:10.1029/2009GL037173, 2009.
* Tao, W-K., J-D. Chern, D.D. Randall, M. Khairoutdinov, J-L. Li, D.E. Waliser, A. Hou, X. Lin, C. Peters-Lidard, W. Lau, J. Jiang, and J. Simpson, "A Multiscaling Modeling System Developments, Applications, and Critical issues", Bull. Am. Meteorol. Soc. 90, 4, 515-534, doi:10.1175/2008BAMS2542.1, 2009.
* Waliser, D.E., J.F. Li, C.P. Woods, R.T. Austin, J. Bacmeister, J. Chern, A. Del Genio, J.H. Jiang, Z. Kuang, H. Meng, P. Minnis, S. Platnick, W. B Rossow, G. L Stephens, S. Sun-Mack, W-K. Tao, A.M. Tompkins, D.G. Vane, C. Walker, and D. Wu, "Cloud ice: A climate model challenge with signs and expectations of progress", J. Geophys. Res. 114, D00A21, doi:10.1029/2008JD010015 , 2009.
* Wu, D.L., R. Austin, S. Durden, A. Heymsfield, J.H. Jiang, A. Lambert, J. Li, N.J. Livesey, G. McFarquhar, J. Pittman, G. Stephens, S. Tanelli, D. Vane, and D. Waliser, "Comparisons of Global Cloud Ice from MLS, CloudSat, and Correlative Data Sets", J. Geophys. Res. 113, doi:10.1029/2008JD009946, 2009.
* Ekstrom, M., and P. Eriksson, "Altitude resolved ice-fraction in the uppermost tropical troposphere", Geophys. Res. Lett. 35, L13822, doi:10.1029/2008GL034305, 2008.
* Eriksson, P., M. Ekstrom, B. Rydberg, D.L. Wu, R.T. Austin, and D.P. Murtagh, "Comparison between the first Odin-SMR, Aura MLS and CloudSat retrievals of cloud ice mass in the upper tropical troposphere", Atmos. Chem. Phys. 8, 1937-1948, 2008.
* Jiang, J.H., H. Su, M. Schoeberl, S.T. Massie, P. Colarco, S. Platnick, and N. Livesey, "Clean and polluted clouds: relationships among pollution, ice cloud and precipitation in South America", Geophys. Res. Lett. 35, L14804, doi:10.1029/2008GL034631, 2008.
* Su, H., J.H. Jiang, D.G. Vane, and G.L. Stephens, "Observed Vertical Structure of Tropical Oceanic Clouds Sorted in Large-scale Regimes ", Geophys. Res. Lett. 35, doi:10.1029/2008GL035888, 2008.
* Su, H., J.H. Jiang, Y. Gu, J.D. Neelin, B.H. Kahn, D. Feldman, Y.L. Yung, J.W. Waters, N.J. Livesey, M.L. Santee, and W.G. Read, "Variations of tropical upper tropospheric clouds with sea surface temperature and implications for radiative effects", J. Geophys. Res. 113, D10211, doi:10.1029/2007JD009624, 2008.
* Wu, D.L., H.M. Pickett, and N.J. Livesey, "Aura MLS THz observations of global cirrus near the tropopause", Geophys. Res. Lett. 35, L15803, doi:10.1029/2008GL034233, 2008.
* Wu, D.L., J.H. Jiang, W.G. Read, R.T. Austin, C.P. Davis, A. Lambert, G.L. Stephens, D.G. Vane, and J.W. Waters, "Validation of the Aura MLS Cloud Ice Water Content (IWC) Measurements", J. Geophys. Res. 113, doi:10.1029/2007JD008931, 2008.
* Davis, C.P., H.C. Pumphrey, K.F. Evans, S. Buehler, and D.L. Wu, "3D polarised simulations of space-borne passive mm/sub-mm midlatitude cirrus observations: A case study", Atmos. Chem. Phys. 7, 4149-4158, 2007.
* Eriksson, P., M. Ekstrom, B. Rydberg, and D.P. Murtagh, "First Odin sub-mm retrievals in the tropical upper troposphere: ice cloud properties", Atmos. Chem. Phys. 7, 471-483, 2007.
* Kahn, B.H., A. Eldering, A.J. Braverman, E.J. Fetzer, J.H. Jiang, E. Fishbein, and D.L. Wu, "Towards the characterization of upper tropospheric clouds using AIRS and MLS observations", J. Geophys. Res. 112, D05202, doi:10.1029/2006JD007336, 2007.
* Li, J-L., J.H. Jiang, D.E. Waliser, and A.M. Tompkins, "Assessing Consistency between EOS MLS and ECMWF Analyzed and Forecast Estimates of Cloud Ice", Geophys. Res. Lett. 34, L08701, doi:10.1029/2006GL029022, 2007.
* Liu, C., "Geographical and seasonal distribution of tropical tropopause thin clouds and their relation to deep convection and water vapor viewed from satellite measurements", J. Geophys. Res. 112, D09205, doi:10.1029/2006JD007479, 2007.
* Cofield, R.E., and P.C. Stek, "Design and field-of-view calibration of 114-660 GHz optics of the Earth Observing System Microwave Limb Sounder", IEEE Trans. Geosci. Remote Sensing 44, no. 5, 1166-1181, May 2006.
* Fu, R., Y. Hu, J.S. Wright, J.H. Jiang, R.E. Dickinson, M. Chen, M. Filipiak, W.G. Read, J.W. Waters, and D.L. Wu, "Short circuit of water vapor and polluted air to the global stratosphere by convective transport over the Tibetan Plateau", Proc. Nat. Acad. Sci. 103, 5664-5669, 2006.
* Wu, D.L., J.H. Jiang, and C.P. Davis, "EOS MLS cloud ice measurements and cloudy-sky radiative transfer model", IEEE Trans. Geosci. Remote Sensing 44, no. 5, 1156-1165, May 2006.
* Davis, C., C. Emde, and R. Harwood, "A 3D polarized reversed Monte Carlo radiative transfer model for mm and sub-mm passive remote sensing in cloudy atmospheres", IEEE Trans. Geosci. Remote Sensing 43, no. 5, 1096-1101, Micro Rad '04 special Issue, May 2005.
* Davis, C.P., D.L. Wu, C. Emde, J.H. Jiang, R.E. Cofield, and R.S. Harwood, "Cirrus Induced Polarization in 122 GHz Aura Microwave Limb Sounder Radiances", Geophys. Res. Lett. 32, L14806, doi:10.1029/2005GL022681, 28 July 2005.
* Li, J-L., D.E. Waliser, J.H. Jiang, D.L. Wu, W.G. Read, J.W. Waters, A.M. Tompkins, L.J. Donner, J-D. Chern, W-K. Tao, R. Atlas, Y. Gu, K.N. Liou, A. Del Genio, M. Khairoutdinov, and A. Gettleman, "Comparisons of EOS MLS Cloud Ice Measurements with ECMWF analyses and GCM Simulations: Initial Results", Geophys. Res. Lett. 32, L18710, doi:10.1029/2005GL023788, 28 September 2005.
* Jiang, J.H., and D.L. Wu, "Ice and Water Permittivities for Millimeter and Sub-millimeter Remote Sensing Applications", Atmospheric Science Letters 5, 146-151, 2004.
ML2IWC is the EOS Aura Microwave Limb Sounder (MLS) standard product for cloud ice water content derived from radiances measured by the 240 GHz radiometer. The current version is 4.2. 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 from 215 to 82.5 hPa, and the vertical resolution is about 3 km. Users of the ML2IWC data product should read sections 3.15 and 3.16 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 two swath objects (one with profile data, the other with column data), each 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/ML2IWC.004/
Access the data via anonymous FTP.
GET DATA
MIRADOR
http://mirador.gsfc.nasa.gov/cgi-bin/mirador/homepageAlt.pl?keyword=ML2IWC 004
Access archived dataset ML2IWC from Mirador
GET DATA
OPENDAP DIRECTORY (DODS)
http://acdisc.gsfc.nasa.gov/opendap/HDF-EOS5/Aura_MLS_Level2/ML2IWC.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/ML2IWC.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_ML2IWC_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/ML2IWC.004/doc/Aura-MLS_DataQuality_v4-2x-rev1-0.pdf
product README file
USA/NASA
CEOS
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 12:14:43
gov.nasa.gsfc.gcmd
metadata.keyword_version
8.1
ML2IWC