SeaWiFS Deep Blue Aerosol Optical Depth and Angstrom Exponent Daily Level 2 Data
Entry ID:
GES_DISC_SWDB_L2_V003
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Summary
Abstract:
One of the key components of NASAs Earth Science Research Strategy to better understand the complex nature of Earths climate is the determination of the global radiation balance. Comprehensive regional-to-global climate models (R/GCM) are playing an ever-greater role in addressing this issue. Because of their important role in modifying the radiative energy balance, the characteristics of ... aerosols, especially near their sources and sinks, are essential parameters to the R/GCMs. Many EOS era instruments (e.g., SeaWiFS, MODIS, MISR, etc.) are designed to provide such information with a high degree of fidelity. A README can be found at ftp://measures.gsfc.nasa.gov/data/s4pa/DeepBlueSeaWiFS_Level2/SWDB_...
Parameters contained in the data files include the following:
Variable Name | Description |Units
aerosol_optical_thickness_550_land | aerosol optical thickness estimated at 550 nm over land | (1)
aerosol_optical_thickness_550_land_ocean | aerosol optical thickness estimated at 550 nm over land and ocean | (1)
aerosol_optical_thickness_550_land_ocean_best_estimate | best estimate of aerosol optical thickness estimated at 550 nm over land and ocean | (1)
aerosol_optical_thickness_550_ocean | aerosol optical thickness estimated at 550 nm over ocean | (1)
aerosol_optical_thickness_confidence_flag_land | aerosol optical thickness confidence flag over land | (1)
aerosol_optical_thickness_confidence_flag_land_ocean | aerosol optical thickness confidence flag over land and ocean | (1)
aerosol_optical_thickness_confidence_flag_ocean | aerosol optical thickness confidence flag over ocean | (1)
aerosol_optical_thickness_land | aerosol optical thickness at 412 nm, 490 nm, and 670 nm over land | (1)
aerosol_optical_thickness_ocean | aerosol optical thickness at 412 nm, 490 nm, and 670 nm over ocean | (1)
angstrom_exponent_confidence_flag_land | angstrom exponent confidence flag over land | (1)
angstrom_exponent_confidence_flag_land_ocean | angstrom exponent confidence flag over land and ocean | (1)
angstrom_exponent_confidence_flag_ocean | angstrom exponent confidence flag over ocean | (1)
angstrom_exponent_land | angstrom exponent over land as derived from aerosol optical thickness at 412 nm and 490 nm | (1)
angstrom_exponent_land_ocean | angstrom exponent over land and ocean as derived from aerosol optical thickness at 412 nm and 490 nm | (1)
angstrom_exponent_ocean | angstrom exponent over ocean as derived from aerosol optical thickness at 412 nm and 490 nm | (1)
End of parameter information 
Related URL
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Description:
Access to the SeaWiFS Deep Blue Level 2 dataset by FTP.
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Geographic Coverage
(Click for Interactive Map)
Spatial coordinates
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N: 90.0
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S: -90.0
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E: 180.0
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W: -180.0
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Data Set Citation
Dataset Originator/Creator:
N. Christina Hsu, Corey Bettenhausen, Andrew Sayer, and M.-J. Jeong
Dataset Title:
SeaWiFS Deep Blue Aerosol Optical Depth and Angstrom Exponent Daily Level 2 Data
Dataset Release Date:
December 21, 2011
Dataset Release Place:
Greenbelt, MD, USA
Dataset Publisher:
Goddard Space Flight Center Distributed Active Archive Center (GSFC DAAC)
Version:
003
Data Presentation Form:
Digital Science Data
Online Resource:
http://disc.sci.gsfc.nasa.gov/daac-bin/DataHoldingsMEASURES.pl?PROG...
Temporal Coverage
Start Date:
1997-09-04
Stop Date:
2010-12-11
Data Resolution
Latitude Resolution:
13.5km
Longitude Resolution:
13.5km
Horizontal Resolution Range:
10 km - < 50 km or approximately .09 degree - < .5 degree
Temporal Resolution:
15 files/day
Temporal Resolution Range:
Hourly - < Daily
Quality
For information on data quality and proper use of the data, see
1. Sayer, A. M., N. C. Hsu, C. Bettenhausen, Z. Ahmad, B. N. Holben, A. Smirnov, G. E. Thomas, and J. Zhang (2012), SeaWiFS Ocean Aerosol Retrieval (SOAR): Algorithm, validation, and comparison with other data sets, J. Geophys. Res., 117, D03206, doi:10.1029/2011JD016599
2. Sayer, A. M., Hsu, N. C., Bettenhausen, C., Jeong, M.-J., Holben, B. N., and Zhang, J. (2012): Global and regional evaluation of over-land spectral aerosol optical depth retrievals from SeaWiFS, Atmos. Meas. Tech., 5, 1761-1778, doi:10.5194/amt-5-1761-2012
Data Set Progress
COMPLETE
Distribution
Distribution Media:
FTP/HTTP
Distribution Format:
HDF5
Fees:
Free
Personnel
Role:
TECHNICAL CONTACT
Phone:
301-614-5383
Email:
corey.bettenhausen at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Code 613.2
City:
Greenbelt
Province or State:
MD
Postal Code:
20771
Country:
USA
Role:
DIF AUTHOR
Phone:
301-614-5475
Email:
dana.m.ostrenga at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Code 610.2
City:
Greenbelt
Province or State:
MD
Postal Code:
20771
Country:
USA
Role:
INVESTIGATOR
Email:
Christina.Hsu at nasa.gov
Contact Address:
NASA/Goddard Space Flight Center
Code 613.2
City:
Greenbelt
Province or State:
MD
Postal Code:
20771
Country:
USA
Publications/References
Sayer, A. M., N. C. Hsu, C. Bettenhausen, Z. Ahmad, B. N. Holben, A. Smirnov, G. E. Thomas, and J. Zhang (2012), SeaWiFS Ocean Aerosol Retrieval (SOAR): Algorithm, validation, and comparison with other data sets, J. Geophys. Res., 117, D03206, doi:10.1029/2011JD016599
Sayer, A. M., Hsu, N. C., Bettenhausen, C., Jeong, M.-J., Holben, B. N., and Zhang, J. (2012): Global and regional evaluation of over-land spectral aerosol optical depth retrievals from SeaWiFS, Atmos. Meas. Tech., 5, 1761-1778, doi:10.5194/amt-5-1761-2012
Extended Metadata Properties
(Click to view more)
Creation and Review Dates
DIF Creation Date:
2011-12-21
Last DIF Revision Date:
2012-10-15
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