AMSR-E/Aqua Daily L3 25 km Brightness Temperature & Sea Ice Concentration Polar Grids  View Catalog Page Entry ID
AE_SI25
Summary
The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA Earth Observing System (EOS) Aqua satellite provides global passive microwave measurements of land, ocean, and atmospheric variables for the investigation of water and energy cycles.
This Level-3 gridded product (AE_SI25) includes brightness temperatures at 6.9 through 89.0 GHz and sea ice concentrations. Data are mapped to a polar stereographic grid at 25 km spatial resolution. All variables include daily ascending averages, daily descending averages, and daily averages. Data are stored in HDF-EOS format and are available from 19 June 2002 to present via FTP.
Geographic Coverage
Spatial Coordinates:
N: -39.23°
S: -90°
E: 180°
W: -180°
N: 90°
S: 30.98°
E: 180°
W: -180°
|
|
Data Set Citation
Dataset Creator: Cavalieri, D. J., T. Markus, and J. C. Comiso.
Dataset Title: AMSR-E/Aqua Daily L3 25 km Brightness Temperature & Sea Ice Concentration Polar Grids
Dataset Release Date: 2004-01-01
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Version: 2
Online Resource: http://nsidc.org/data/ae_si25.html
Temporal Coverage
Start Date: 2002-06-19
Data Resolution
Latitude Resolution: 25 km
Longitude Resolution: 25 km
Temporal Resolution: 1 day
Location Keywords
- CONTINENT ANTARCTICA
- GEOGRAPHIC REGION ARCTIC
- GEOGRAPHIC REGION POLAR
Science Keywords
- Cryosphere Sea Ice Sea Ice Concentration
- Oceans Sea Ice Sea Ice Concentration
- Spectral/Engineering Microwave Brightness Temperature
- Spectral/Engineering Microwave Microwave Imagery
Ancillary Keywords
- AE_SI25
- AMSR-E
- Antarctic Sea Ice
- Aqua
- Arctic Sea Ice
- BRIGHTNESS TEMPERATURES
- DAAC
- EOSDIS
- EOS PM-1
- Imagery
- Leads
- Modified Bootstrap Algorithm
- Modified NASA Team Algorithm
- NASA
- NSIDC
- Passive Microwave Radiation
- Passive Microwave Sea Ice Data
- Polar Sea Ice
- Polynyas
- Radiance
- Remote Sensing
- Sea Ice Concentrations
- Sea Ice Extents
- Sea Ice Variability
- Southern Ocean
- Tbs
- Climatology/Meteorology/Atmosphere
Platform
- AQUA Earth Observing System, AQUA
Instrument
- AMSR-E Advanced Microwave Scanning Radiometer-EOS
Project
- EOS Earth Observing System
Quality
Weather filters are employed for the Level-3 sea ice products to eliminate spurious sea ice concentrations over open ocean resulting from varying atmospheric emission. The weather filters are based on threshold values for the spectral gradient radio and thresholds derived from TB differences. Sea ice products are checked to see if ice concentration values fall within reasonable limits. Diagnostics are based in part on satellite sea ice climatology developed since the Scanning Multichannel Microwave Radiometer (SMMR) era in 1978.
Data Set Progress
in work
Data Center
NASA DAAC at the National Snow and Ice Data Center
Data Center URL: http://nsidc.org/daac/index.html
Data Center Personnel
Name: NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
National Snow and Ice Data Center
Data Center URL: http://nsidc.org
Data Center Personnel
Name: NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
Distribution
Distribution Media: FTP
Distribution Size: 20 MB
Distribution Format: HDF-EOS
Personnel
Donald J. Cavalieri
Role: INVESTIGATOR
Phone: 1 301 614-5901 x
Fax: 1 301 614-5644 x
Email: Donald.J.Cavalieri@nasa.gov
Contact Address:
- NASA Goddard Space Flight Center
- Laboratory for Hydrospheric Processes
- NASA/GSFC
- Mail Code: 615
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
Donald J. Cavalieri
Role: INVESTIGATOR
Phone: 1 301 614-5901 x
Fax: 1 301 614-5644 x
Email: Donald.J.Cavalieri@nasa.gov
Contact Address:
- NASA Goddard Space Flight Center
- Laboratory for Hydrospheric Processes
- NASA/GSFC
- Mail Code: 615
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
Josephino 'Joey' C. Comiso
Role: INVESTIGATOR
Phone: 1 301 614-5708
Email: josefino.c.comiso@nasa.gov
Contact Address:
- Laboratory for Hydrospheric Processes
- Cryospheric Sciences Branch
- NASA/Goddard Space Flight Center
- Code 614
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
Thorsten Markus
Role: INVESTIGATOR
Phone: 1 301 614-5882
Email: thorsten.markus@nasa.gov
Contact Address:
- Goddard Space Flight Center
- NASA/Goddard Space Flight Center
- Instrumentation Sciences Branch
- Code 614.6
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
NSIDC User Services
Role: TECHNICAL CONTACT
Phone: 1 303 492-6199 x
Fax: 1 303 492-2468 x
Email: nsidc@nsidc.org
Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
Related URL
VIEW PROJECT HOME PAGE
AMSR-E Data at NSIDC
VIEW PROJECT HOME PAGE
AMSR-E Web site at NSIDC
VIEW PROJECT HOME PAGE
NASA AMSR-E Web site
VIEW PROJECT HOME PAGE
Sea Ice Products at NSIDC
Reference
Cavalieri, D. and J. Comiso. 2000. Algorithm Theoretical Basis Document for the AMSR-E Sea Ice Algorithm, Revised December 1. Landover, MD, USA: Goddard Space Flight Center.
Cavalieri, D.J., K.M. St. Germain, and C.T. Swift. 1995. Reduction of weather effects in the calculation of sea ice concentration with the DMSP SSM/I. Journal of Glaciology 41(139): 455-464.
Cavalieri, D.J., P. Gloersen, and W.J. Campbell. 1984. Determination of sea ice parameters with the NIMBUS-7 SMMR. Journal of Geophysical Research 89(D4):5355-5369.
Comiso, J., D. Cavalieri, and T. Markus. 2003. Sea ice concentration, ice temperature, and snow depth using AMSR-E data. IEEE Transactions on Geoscience and Remote Sensing 41(2): 243-252.
Comiso, J., and K. Steffen. 2001. Studies of Antarctic sea ice concentrations from satellite data and their applications. Journal of Geophysical Research 106(C12): 31,361-31,385.
Comiso, J. C., D. J. Cavalieri, C. L. Parkinson, and P. Gloersen. 1997. Passive Microwave Algorithms for Sea Ice Concentration - A Comparison of Two Techniques. Remote Sensing of the Environment 60: 357-384.
Comiso, J.C. 1995. SSM/I ice concentrations using the Bootstrap Algorithm. NASA RP 1380, 50 pp.
Conway, D. 2002. Advanced Microwave Scanning Radiometer - EOS Quality Assurance Plan. Huntsville, AL: Global Hydrology and Climate Center.
Eppler, D. T. and 14 others. 1992. Passive Microwave Signatures of Sea Ice, in Microwave Remote Sensing of Ice. Geophysical Monograph Series 68: 47-71. AGU, Washington, D.C.
Fraser R. S., Gaut, N. E., Reifenstein, E. C., and H. Sievering. 1975. Interaction Mechanisms Within the Atmosphere Including the Manual of Remote Sensing. American Society of Photogrammetry 181-233. Falls Church, VA.
Gloersen P. and D.J. Cavalieri. 1986. Reduction of weather effects in the calculation of sea ice concentration from microwave radiances. Journal of Geophysical Research 91(C3):3913-3919.
Gloersen P, W. J. Cambell, D. J. Cavalieri, J. C. Comiso, C. L. Parkinson, and H. J. Zwally. 1992. Arctic and Antarctic Sea Ice, 1978-1987: Satellite Passive Microwave Observations and Analysis. National Aeronautics and Space Administration, Special Publication 511, Washington, D.C., pp.290.
Kummerow, C. 1993. On the accuracy of the Eddington approximation for radiative transfer in the microwave frequencies. Journal of Geophysical Research 98: 2757-2765. Lubin, D., C. Garrity, R. O. Ramseier, and R. H. Whritner. 1997. Total Sea Ice Concentration Retrieval from the SSM/I 85.5 GHz Channels During the Arctic Summer, Rem. Sens. Environ 62: 63-76.
Markus, Thorsten and Donald J. Cavalieri. 2008. Supplement AMSR-E Algorithm Theoretical Basis Document: Sea Ice Products. Greenbelt, MD, USA: Goddard Space Flight Center. (view pdf)
Markus, Thorsten and Donald J. Cavalieri. 1998. Snow depth distribution over sea ice in the Southern Ocean from satellite passive microwave data. Antarctic Sea Ice: Physical Processes, Interactions, and Variability. Antarctic Research Series 74:19-39. Washington, DC, USA: American Geophysical Union.
Markus, Thorsten and Donald J. Cavalieri. 2000. An enhancement of the NASA Team sea ice algorithm. IEEE Transactions on Geoscience and Remote Sensing 38: 1387-1398.
Matzler, C., R. O. Ramseier, and E. Svendsen. 1984. Polarization Effects in Sea-ice Signatures. IEEE Journal of Oceanic Engineering 9: 333-338.
Pearson, F. 1990. Map projections: Theory and applications. CRC Press. Boca Raton, Florida. 372 pages.
Snyder, J.P. 1987. Map projections - a working manual. U.S. Geological Survey Professional Paper 1395. U.S. Government Printing Office. Washington, D.C. 383 pages.
Snyder, J. P. 1982. Map Projections Used by the U.S. Geological Survey. U.S. Geological Survey Bulletin 1532.
For more information regarding related publications, see the Research Using AMSR-E Data Web page.
Metadata Name and Version
Metadata Name: CEOS IDN DIF
Metadata Version: 9.7
Creation and Review Dates
DIF Creation Date: 2004-01-01
Last DIF Revision Date: 2013-01-22
|
Home | Contact Us
