SMEX02 Atmospheric Aerosol Optical Properties Data  View Catalog Page Entry ID
NSIDC-0239
Summary
This data set consists of observations of atmospheric parameters including spectral aerosol optical depths, precipitable water, sky radiance distributions and aerosol volume, and particle size distribution. Data were collected by the Aerosol Robotic Network (AERONET) program, a federation of ground-based remote sensing aerosol networks composed of automatic sun and sky scanning radiometers. AERONET's goal is to assess aerosol optical properties and validate satellite data. The study site was in the Soil Moisture Experiment 2002 (SMEX02) area of Iowa, USA for the period from 20 June to 17 July 2002.
A sun photometer was set up at a centrally located site within the Walnut Creek watershed for the collection of aerosol optical properties throughout the course of the SMEX02 field campaign. Three levels of data are available: Level 1.0 (unscreened), Level 1.5 (cloud-screened), and Level 2.0 (cloud-screened and quality-assured).
These data were collected as part of a validation study for the Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E). AMSR-E is a mission instrument launched aboard NASA's Aqua Satellite on 04 May 2002. AMSR-E validation studies linked to SMEX are designed to evaluate the accuracy of AMSR-E soil moisture data. Specific validation objectives include assessing and refining soil moisture algorithm performance; verifying soil moisture estimation accuracy; investigating the effects of vegetation, surface temperature, topography, and soil texture on soil moisture accuracy; and determining the regions that are useful for AMSR-E soil moisture measurements.
Geographic Coverage
Spatial Coordinates:
N: 56°
S: 41°
E: -93°
W: -93°
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Data Set Citation
Dataset Creator: Charles L. Walthall
Dataset Title: SMEX02 Atmospheric Aerosol Optical Properties Data
Dataset Release Date: 2003-10-20
Dataset Release Place: Landover, Maryland USA
Dataset Publisher: Goddard: NASA Goddard Space Flight Center
Online Resource: http://nsidc.org/data/nsidc-0239.html
Temporal Coverage
Start Date: 2002-06-19
Stop Date: 2002-07-18
Location Keywords
- CONTINENT NORTH AMERICA
- CONTINENT NORTH AMERICA UNITED STATES OF AMERICA IOWA
Science Keywords
- Atmosphere Aerosols Aerosol Optical Depth/Thickness
- Atmosphere Aerosols Aerosol Particle Properties
- Atmosphere Aerosols Aerosol Radiance
- Atmosphere Atmospheric Water Vapor Precipitable Water
- Atmosphere Precipitation Precipitation Rate
- Spectral/Engineering Visible Wavelengths Visible Radiance
Ancillary Keywords
- Aerosols
- Precipitable Water
- Precipitation
- Precipitation Amount
- Radiance
- SMEX
- Total Precipitation
- Climatology/Meteorology/Atmosphere
Platform
Instrument
- AEROSOL/CLOUD PARTICLE SIZER
- AEROSOL MONITOR
- RADIOMETERS
- SPECTRORADIOMETERS
Project
- SMEX02 Soil Moisture Experiments in 2002
Data Set Progress
complete
Originating Center
NASA/GSFC/SED/ESD/HBSL/HSB
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 Format: ASCII Text
Personnel
Charles L. Walthall
Role: INVESTIGATOR
Contact Address:
- US Department of Agriculture (USDA)
- ARS-Hydrology and Remote Sensing Laboratory
- Rm 104 Bldg 007 BARC-West
City: Beltsville
Province or State: MD
Postal Code: 20705
Country: USA
Wayne P. Dulaney
Role: INVESTIGATOR
Contact Address:
- US Department of Agriculture (USDA)
- ARS-Hydrology and Remote Sensing Laboratory
- Rm 104 Bldg 007 BARC-West
City: Beltsville
Province or State: MD
Postal Code: 20705
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
AERONET site
VIEW PROJECT HOME PAGE
NSIDC AMSR-E Validation
Metadata Name and Version
Metadata Name: CEOS IDN DIF
Metadata Version: 9.7
Creation and Review Dates
DIF Creation Date: 2003-10-20
Last DIF Revision Date: 2012-09-24
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