SMEX02 Tower-Based Radiometric Surface Temperature, Walnut Creek, Iowa
Entry ID: NSIDC-0186

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Summary
Abstract: This data set includes air temperature, vapor pressure, wind speed, and brightness temperatures taken at 12 flux towers as part of the Soil Moisture Experiment 2002 (SMEX02). This study was conducted during June and July 2002 in the Walnut Creek watershed in south-central Iowa, USA. The flux towers contained humidity and temperature probes, infrared thermometers, and anemometers. Data were recorded every 10 minutes from 06 June through 25 July 2002 and are available via FTP. 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.

Related URL
Link: VIEW PROJECT HOME PAGE


Link: VIEW RELATED INFORMATION


Geographic Coverage
 N: 42.0 S: 41.9  E: -93.4  W: -93.5

Data Set Citation
Dataset Originator/Creator: Thomas Jackson
Dataset Title: SMEX02 Tower-Based Radiometric Surface Temperature, Walnut Creek, Iowa
Dataset Release Date: 2003-09-30
Dataset Release Place: Boulder, CO
Dataset Publisher: National Snow and Ice Data Center (NSIDC)
Online Resource: http://nsidc.org/data/nsidc-0186.html


Temporal Coverage
Start Date: 2003-06-25
Stop Date: 2003-07-12


Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA


Science Keywords
ATMOSPHERE >ATMOSPHERIC PRESSURE >ATMOSPHERIC PRESSURE MEASUREMENTS    [Definition]
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >AIR TEMPERATURE    [Definition]
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >SURFACE AIR TEMPERATURE    [Definition]
ATMOSPHERE >ATMOSPHERIC WATER VAPOR >WATER VAPOR    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >SURFACE WINDS    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >VERTICAL WIND MOTION    [Definition]
SPECTRAL/ENGINEERING >INFRARED WAVELENGTHS >BRIGHTNESS TEMPERATURE    [Definition]
SPECTRAL/ENGINEERING >MICROWAVE >BRIGHTNESS TEMPERATURE    [Definition]


ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
IMAGERY/BASE MAPS/EARTH COVER


Platform
FIELD SURVEYS    [Information]


Instrument
INFRARED THERMOMETERS    [Information]
THERMOMETERS    [Information]
INFRARED RADIOMETERS    [Information]


Project
EOSDIS >Earth Observing System Data Information System    [Information]
ISMEX >Iowa Soil Moisture Experiment    [Information]
ESIP >Earth Science Information Partners Program    [Information]
SMEX02 >Soil Moisture Experiments in 2002    [Information]


Keywords
Air Temperature
Air Temperatures
Atmospheric Pressure
Brightness Temperature
Near-surface Air Temperatures
NSIDC
NSIDC > National Snow and Ice Data Center
NSIDC DAAC
SMEX
Surface Pressure
Vapor Pressure Deficit


Data Set Progress
COMPLETE


Originating Center
NSIDC


Data Center
NSIDC Distributed Active Archive Center    [Information]
Data Center URL: http://nsidc.org/daac/index.html
Dataset ID: NSIDC-0186

Data Center Personnel
Name: NSIDC USER SERVICES
Phone: +1 (303) 492-6199
Fax: +1 (303) 492-2468
Email: nsidc at 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    [Information]
Data Center URL: http://nsidc.org
Dataset ID: NSIDC-0186

Data Center Personnel
Name: NSIDC USER SERVICES
Phone: +1 (303) 492-6199
Fax: +1 (303) 492-2468
Email: nsidc at 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_Size: 6.2 MB
Distribution_Format: ASCII text files


Personnel
THOMAS JACKSON
Role: INVESTIGATOR
Phone: 301-504-8511
Fax: 301-504-8931
Email: tjackson at hydrolab.arsusda.gov
Contact Address:
USDA ARS Hydrology Lab
104 Bldg. 007
BARC-West
City: Beltsville
Province or State: MD
Postal Code: 20705
Country: USA


MICHAEL COSH
Role: INVESTIGATOR
Phone: (301) 504-6461
Fax: (301) 504-8931
Email: mcosh at hydrolab.arsusda.gov
Contact Address:
USDA ARS Hydrology Lab
104 Bldg. 007
BARC-West
City: Beltsville
Province or State: MD
Postal Code: 20705
Country: USA


NSIDC USER SERVICES
Role: TECHNICAL CONTACT
Phone: +1 (303) 492-6199
Fax: +1 (303) 492-2468
Email: nsidc at 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


Publications/References
Bugbee, B., M. Droter, O. Monje, and B. Tanner, 1999. Evaluation and modification of commercial infrared-red transducers for leaf temperature measurement. Adv. Space Res., Vol., 22, no.10, pp 1425-1434

Please see the http://hydrolab.arsusda.gov/smex02/smex02.htm site for more information, and the http://nsidc.org/data/amsr_validation/soil_moisture/ site to access data.

Creation and Review Dates
DIF Creation Date: 2003-09-18
Last DIF Revision Date: 2012-05-14

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