GPM Ground Validation USDA ARS Soil Moisture IFloodS V1

The GPM Ground Validation United States Department of Agriculture (USDA) Agricultural Research Service (ARS) Soil Moisture IFloodS dataset was collected during the Iowa Flood Studies (IFloodS) ground measurement campaign from April 17, 2013 to June 4, 2013. The goals of the campaign were to collect detailed measurements of precipitation at the Earth’s surface using ground instruments and advanced weather radars and to simultaneously collect data from satellites passing overhead. A total of 15 stations were deployed near the South Fork River in North Central Iowa. The soil moisture probes measure hourly instantaneous measurements of the real dielectric permittivity, soil temperature, bulk electrical conductivity, and volumetric soil moisture. This dataset also consists of precipitation amount, air temperature, relative humidity, vapor pressure, wind speed, wind direction, and solar radiation measurements. The data files are available in ASCII-csv and Excel file formats.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated April 13, 2026, 19:25 (UTC)
Created April 1, 2025, 16:24 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id d0150d9d-5f20-4cf3-9420-f0e9ef7fe6e0
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/GPMGV/IFLOODS/PROBES/DATA301
license https://www.usa.gov/government-works
modified 2026-04-06T22:16:00Z
programCode {026:000}
publisher NASA/MSFC/GHRC
resource-type Dataset
source_datajson_identifier true
source_hash 3fdbc2f91310d21e5420ee8392ef4da1d64f9ce93ddc7a17cf55fdfb76a0c294
source_schema_version 1.1
spatial ["CARTESIAN",[{"WestBoundingCoordinate":-93.5991,"NorthBoundingCoordinate":42.5546,"EastBoundingCoordinate":-93.2108,"SouthBoundingCoordinate":42.3183}]]
temporal 2013-04-16/2013-06-04
theme {"Earth Science"}