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SMEX02 Atmospheric Aerosol Optical Properties Data

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Identification Information:

Dataset Identifier:

NSIDC-0239

Citation:

Citation Information:

Originator: Walthall, C. L.
Publication Date: 20031020
Title: SMEX02 Atmospheric Aerosol Optical Properties Data
Publication Information:
Publication Place: Landover, Maryland USA
Publisher: Goddard: NASA Goddard Space Flight Center
Online Linkage: http://nsidc.org/data/nsidc-0239.html

Description:

Abstract:

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.

Purpose: scientific research

Time Period of Content:

Time Period Information:

Range of Dates/Times:

Beginning Date: 20020619
Ending Date: 20020718

Currentness Reference: publication date

Status:

Progress: Complete
Maintenance and Update Frequency: Unknown

Spatial Domain:

Bounding Coordinates:

 

West Bounding Coordinate: -180°
East Bounding Coordinate: 180°
North Bounding Coordinate: 90°
South Bounding Coordinate: -90°

Keywords:

Theme:

Theme Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Science Keywords
Theme Keyword: EARTH SCIENCE Atmosphere Aerosols Aerosol Optical Depth/Thickness
Theme Keyword: EARTH SCIENCE Atmosphere Aerosols Aerosol Particle Properties
Theme Keyword: EARTH SCIENCE Atmosphere Aerosols Aerosol Radiance
Theme Keyword: EARTH SCIENCE Atmosphere Atmospheric Water Vapor Precipitable Water
Theme Keyword: EARTH SCIENCE Atmosphere Precipitation Precipitation Rate
Theme Keyword: EARTH SCIENCE Spectral/Engineering Visible Wavelengths Visible Radiance

Theme:

Theme Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Project Keywords
Theme Keyword: SMEX02 Soil Moisture Experiments in 2002

Theme:

Theme Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Instrument Keywords
Theme Keyword: AEROSOL MONITOR
Theme Keyword: AEROSOL/CLOUD PARTICLE SIZER
Theme Keyword: RADIOMETERS
Theme Keyword: SPECTRORADIOMETERS

Theme:

Theme Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Platform Keywords
Theme Keyword: GROUND STATIONS

Theme:

Theme Keyword Thesaurus: ISO 19115 Topic Categories
Theme Keyword: climatologyMeteorologyAtmosphere

Theme:

Theme Keyword Thesaurus: None
Theme Keyword: Aerosols
Theme Keyword: Precipitable Water
Theme Keyword: Precipitation
Theme Keyword: Precipitation Amount
Theme Keyword: Radiance
Theme Keyword: SMEX
Theme Keyword: Total Precipitation

Place:

Place Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Location Keywords
Place Keyword: Continent North America
Place Keyword: Continent North America United States Of America Iowa

Access Constraints:

None

Use Constraints:

None

Point of Contact:

Contact Information:

Contact Person Primary:

Contact Person: NSIDC User Services
Contact Organization: National Snow and Ice Data Center

Contact Address:

Address Type: mailing
Address:
  • CIRES, 449 UCB
  • University of Colorado
City: Boulder
State or Province: CO
Postal Code: 80309-0449
Country: USA

Contact Voice Telephone: 1 303 492-6199 x
Contact Facsimile Telephone: 1 303 492-2468 x
Contact Electronic Mail Address: nsidc@nsidc.org

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Distribution Information:

Distributor:

Contact Information:

Contact Organization Primary:

Contact Organization: National Snow and Ice Data Center
Contact Person: NSIDC User Services

Contact Address:

Address Type: mailing
Address:
  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado
City: Boulder
State or Province: CO
Postal Code: 80309-0449
Country: USA

Contact Voice Telephone: 1 303 492-6199
Contact Facsimile Telephone: 1 303 492-2468
Contact Electronic Mail Address: nsidc@nsidc.org

Resource Description:

NSIDC-0239

Distribution Liability:

NSIDC cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NSIDC makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.

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Metadata Reference Information:

Metadata Date:

20130703

Metadata Review Date:

20130703

Metadata Contact:

Contact Information:

Contact Person Primary:

Contact Person: NSIDC User Services
Contact Organization: National Snow and Ice Data Center

Contact Address:

Address Type: mailing
Address:
  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado
City: Boulder
State or Province: CO
Postal Code: 80309-0449
Country: USA

Contact Voice Telephone: 1 303 492-6199
Contact Facsimile Telephone: 1 303 492-2468
Contact Electronic Mail Address: nsidc@nsidc.org

Metadata Standard Name:

FGDC Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata

Metadata Standard Version:

FGDC-STD-012-2002

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Metadata Views

FGDC Text-Only

Federal Geographic Data Committee (FGDC) in plain text

FGDC XML

Federal Geographic Data Committee (FGDC) in Extensible Markup Language (XML)

DIF HTML

NASA Global Change Master Directory (GCMD) Directory Interchange Format (DIF)

ISO HTML

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