---
access_dt: ~
aliases:
  - context: dataset
    lexicon: nsidc
    term: oai:nsidc/NSIDC-0184
    url: http://nsidc.org/api/dataset/2/oai?verb=GetRecord&metadataPrefix=dif&identifier=oai:nsidc/NSIDC-0184
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 is part of the Soil Moisture Experiment 2002 (SMEX02) project, which is associated with the Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) validation project. It consists of Normalized Difference Vegetation Index (NDVI) and Normalized Difference Water Index (NDWI) data, derived from Landsat 5 Thematic Mapper (TM) and Landsat 7 Enhanced Thematic Mapper plus (ETM+) imagery. The satellite data were acquired during select dates in June and July 2002. These data cover the SMEX02 Walnut Creek watershed and the regional Iowa study areas in south-central Iowa, USA. Data are provided as flat binary files 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 Iowa Satellite Vegetation and Water Index (NDVI and NDWI) Data
doi: 10.5067/2R7KUXDQ3S44
end_time: 2002-07-17T00:00:00
files: []
href: http://52.38.26.42:8080/dataset/nasa-nsidcdaac-0184.yaml
identifier: nasa-nsidcdaac-0184
instrument_measurements:
  - dataset_identifier: nasa-nsidcdaac-0184
    display_name: landsat-7/enhanced-thematic-mapper-plus/nasa-nsidcdaac-0184
    instrument_identifier: enhanced-thematic-mapper-plus
    platform_identifier: landsat-7
    type: instrument_measurement
  - dataset_identifier: nasa-nsidcdaac-0184
    display_name: landsat-5/thematic-mapper/nasa-nsidcdaac-0184
    instrument_identifier: thematic-mapper
    platform_identifier: landsat-5
    type: instrument_measurement
lat_max: 42.732
lat_min: 41.694
lon_max: -93.161
lon_min: -93.827
name: SMEX02 Iowa Satellite Vegetation and Water Index (NDVI and NDWI) Data
native_id: NSIDC-0184
parents: []
processing_level: ~
publication_year: ~
references: []
release_dt: 2003-08-29T00:00:00
scale: ~
scope: ~
spatial_extent: ~
spatial_ref_sys: ~
spatial_res: ~
start_time: 2002-06-06T00:00:00
temporal_extent: ~
temporal_resolution: ~
type: dataset
uri: /dataset/nasa-nsidcdaac-0184
url: http://nsidc.org/data/NSIDC-0184
variables: ~
version: ~
vertical_extent: ~