---
access_dt: ~
aliases:
  - context: dataset
    lexicon: nsidc
    term: oai:nsidc/NSIDC-0186
    url: http://nsidc.org/api/dataset/2/oai?verb=GetRecord&metadataPrefix=dif&identifier=oai:nsidc/NSIDC-0186
attributes: ~
cite_metadata: ~
cited_by: []
contributors:
  - display_name: 'Data Archive : National Snow & Ice Data Center Distributed Active Archive Center '
    href: http://52.38.26.42:8080/contributor/4440.yaml
    id: 4440
    organization:
      country_code: US
      display_name: National Snow & Ice Data Center Distributed Active Archive Center
      identifier: national-snow-ice-data-center-distributed-active-archive-center
      name: National Snow & Ice Data Center Distributed Active Archive Center
      organization_type_identifier: federal
      type: organization
      url: http://nsidc.org/daac
    organization_uri: /organization/national-snow-ice-data-center-distributed-active-archive-center
    person: {}
    person_id: ~
    person_uri: ~
    role_type_identifier: data_archive
    uri: /contributor/4440
data_qualifier: ~
description: "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."
description_attribution: ~
display_name: 'SMEX02 Tower-Based Radiometric Surface Temperature, Walnut Creek, Iowa'
doi: 10.5067/BJZU6IV9HUTE
end_time: 2003-07-12T00:00:00
files: []
href: http://52.38.26.42:8080/dataset/nasa-nsidcdaac-0186.yaml
identifier: nasa-nsidcdaac-0186
instrument_measurements: []
lat_max: 42
lat_min: 41.9
lon_max: -93.4
lon_min: -93.5
name: 'SMEX02 Tower-Based Radiometric Surface Temperature, Walnut Creek, Iowa'
native_id: NSIDC-0186
parents: []
processing_level: ~
publication_year: ~
references: []
release_dt: 2003-09-19T00:00:00
scale: ~
scope: ~
spatial_extent: ~
spatial_ref_sys: ~
spatial_res: ~
start_time: 2003-06-25T00:00:00
temporal_extent: ~
temporal_resolution: ~
type: dataset
uri: /dataset/nasa-nsidcdaac-0186
url: http://nsidc.org/data/NSIDC-0186
variables: ~
version: ~
vertical_extent: ~