SMEX02 Atmospheric Aerosol Optical Properties Data

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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.

Data Set Citation

Dataset Creator: Walthall, C. L.
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

ISO Topic Category (View Definitions)

  • Climatology/Meteorology/Atmosphere

Platform

  • GROUND STATIONS

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 (.txt)

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: 2013-07-03

Metadata Views

DIF Text-Only

Directory Interchange Format (DIF) in plain text

DIF XML

Directory Interchange Format (DIF) in Extensible Markup Language (XML)

FGDC HTML

U.S. Federal Geographic Data Committee (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM)

ISO HTML

International Organization for Standardization (ISO) 19115:2003 Geographic Information Metadata

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