Entry_ID: NSIDC-0410
Entry_Title: SMEX04 Atmospheric Aerosol Optical Properties Data: Arizona
Group: Data_Set_Citation
   Dataset_Creator: Walthall, C. L. and W. P. Dulaney. 
   Dataset_Title: SMEX04 Atmospheric Aerosol Optical Properties Data: Arizona
   Dataset_Release_Date: 2009-07-17
   Dataset_Release_Place: Landover, Maryland USA
   Dataset_Publisher: Goddard: NASA Goddard Space Flight Center
   Online_Resource: http://nsidc.org/data/nsidc-0410.html
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Charles
   Middle_Name: L.
   Last_Name: Walthall
   Group: Contact_Address
      Address: US Department of Agriculture (USDA)
      Address: ARS-Hydrology and Remote Sensing Laboratory
      Address: Rm 104 Bldg 007 BARC-West
      City: Beltsville
      Province_or_State: MD
      Postal_Code: 20705
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Wayne
   Middle_Name: P.
   Last_Name: Dulaney
   Group: Contact_Address
      Address: US Department of Agriculture (USDA)
      Address: ARS-Hydrology and Remote Sensing Laboratory
      Address: Rm 104 Bldg 007 BARC-West
      City: Beltsville
      Province_or_State: MD
      Postal_Code: 20705
   End_Group
End_Group
Group: Personnel
   Role: Technical Contact
   First_Name: NSIDC
   Last_Name: User Services
   Email: nsidc@nsidc.org
   Phone: 1 303 492-6199 x
   Fax: 1 303  492-2468 x
   Group: Contact_Address
      Address: National Snow and Ice Data Center
      Address: CIRES, 449 UCB
      Address: University of Colorado
      City: Boulder
      Province_or_State: CO
      Postal_Code: 80309-0449
      Country: USA
   End_Group
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Aerosols
   Variable_Level_1: Aerosol Optical Depth/Thickness
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Aerosols
   Variable_Level_1: Aerosol Particle Properties
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Aerosols
   Variable_Level_1: Aerosol Radiance
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Atmospheric Water Vapor
   Variable_Level_1: Precipitable Water
End_Group
ISO_Topic_Category: Climatology/Meteorology/Atmosphere
Keyword: Aerosols
Keyword: AMSR-E
Keyword: DAAC
Keyword: NASA
Keyword: NSIDC
Keyword: NSIDC DAAC
Keyword: Precipitable Water
Keyword: Radiance
Keyword: SMEX
Keyword: Soil Moisture
Sensor_Name: SUN PHOTOMETERS
Source_Name: GROUND-BASED OBSERVATIONS
Group: Temporal_Coverage
   Start_Date: 2004-06-18
   Stop_Date: 2004-11-16
End_Group
Data_Set_Progress: complete
Group: Spatial_Coverage
   Southernmost_Latitude: 31.73
   Northernmost_Latitude: 31.73
   Westernmost_Longitude: -110.03
   Easternmost_Longitude: -110.03
End_Group
Group: Location
   Location_Category: CONTINENT
   Location_Type: NORTH AMERICA
   Location_Subregion1: UNITED STATES OF AMERICA
   Location_Subregion2: ARIZONA
End_Group
Project: SMEX04 > Soil Moisture Experiments in 2004
Data_Set_Language: English
Originating_Center: NASA/GSFC/SED/ESD/HBSL/CSB
Group: Data_Center
   Data_Center_Name: NASA DAAC > NASA DAAC at the National Snow and Ice Data Center
   Data_Center_URL: http://nsidc.org/daac/index.html
   Group: Personnel
      Role: Data Center Contact
      First_Name: NSIDC
      Last_Name: User Services
      Email: nsidc@nsidc.org
      Phone: 1 303 492-6199 
      Fax: 1 303  492-2468 
      Group: Contact_Address
         Address: National Snow and Ice Data Center
         Address: CIRES, 449 UCB
         Address: University of Colorado
         City: Boulder
         Province_or_State: CO
         Postal_Code: 80309-0449
         Country: USA
      End_Group
   End_Group
End_Group
Group: Data_Center
   Data_Center_Name: NSIDC > National Snow and Ice Data Center
   Data_Center_URL: http://nsidc.org
   Group: Personnel
      Role: Data Center Contact
      First_Name: NSIDC
      Last_Name: User Services
      Email: nsidc@nsidc.org
      Phone: 1 303 492-6199 
      Fax: 1 303  492-2468 
      Group: Contact_Address
         Address: National Snow and Ice Data Center
         Address: CIRES, 449 UCB
         Address: University of Colorado
         City: Boulder
         Province_or_State: CO
         Postal_Code: 80309-0449
         Country: USA
      End_Group
   End_Group
End_Group
Group: Distribution
   Distribution_Media: Online (HTTP)
   Distribution_Size: 10 KB
   Distribution_Format: ASCII Text (.txt)
End_Group
Group: Summary

   This data set contains observations of atmospheric parameters from aerosol 
   optical property measurements collected during the Soil Moisture Experiment 
   2004 (SMEX04) in Arizona, USA.  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. A sun 
   photometer was set up within the Arizona experimental site for the collection 
   of aerosol optical properties throughout the course of the SMEX04 field 
   campaign.  Parameters include: spectral aerosol optical depths; precipitable 
   water; sky radiance distributions and aerosol volume; and particle size 
   distribution.  Three levels of data are available: Level 1.0 (unscreened), 
   Level 1.5 (cloud screened), and Level 2.0 (cloud-screened and 
   quality-assured).  Temporal coverage for the data spans 18 June 2004 to 16 
   November 2004.  The volume of the data set is approximately 10 kilobytes for 
   one day of observations, provided in comma-delimited ASCII text files.  

   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.

End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://aeronet.gsfc.nasa.gov/
   Description: AERONET Homepage
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://aeronet.gsfc.nasa.gov/
   Description: AERONET Home Web Page
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/amsre/index.html
   Description: AMSR-E/Aqua Data
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/amsr_validation/index.html
   Description: AMSR-E Validation Data
End_Group
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 2009-07-17
Last_DIF_Revision_Date: 2013-07-26
DIF_Revision_History:  added creators