Skip to main content
U.S. flag

An official website of the United States government

SMAPVEX16 Iowa PALS Brightness Temperature and Soil Moisture Data V001

Published by NASA NSIDC DAAC | National Aeronautics and Space Administration | Catalog Last Checked: July 14, 2026 at 11:22 PM | Dataset Last Updated: July 17, 2025
This product contains data derived from permanent in situ soil stations and observations by the Passive Active L-band System (PALS) microwave aircraft instrument. The PALS instrument was mounted to a DC-3 aircraft, which flew six parallel flight lines at an altitude of 3000 m in order to map a study area in South Fork, Iowa, United States. A total of 20 soil stations were distributed throughout this same area. The soil characteristics included in this data set are volumetric soil moisture, vertically and horizontally polarized brightness temperature, effective soil temperature, effective vegetation temperature, vegetation water content, land cover classification, sand and clay fraction, and volumetric soil moisture uncertainty estimates.

Resources

4 resources available

  • Download this dataset

    HTML
  • View documentation related to this dataset

    HTML
  • Download this dataset through Earthdata Search

    HTML
  • Google Scholar search results

    HTML

Find Related Datasets

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov