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GPM GROUND VALIDATION UND CITATION NAVIGATION DATA IPHEx V1

Published by NASA/MSFC/GHRC | National Aeronautics and Space Administration | Metadata Last Checked: April 13, 2026 | Last Modified: 2026-04-06
The GPM Ground Validation UND Citation Navigation Data IPHEx dataset supplies navigation data collected by the Cessna Citation II aircraft for flights that occurred during March 6, 2014 through June 13, 2014 for the Global Precipitation Measurement Ground Validation Integrated Precipitation and Hydrology Experiment (IPHEx) field campaign in North Carolina. The goal of IPHEx was to evaluate the accuracy of satellite precipitation measurements and use the collected data for hydrology models in the region. The Cessna Citation II Research aircraft, owned and operated by the University of North Dakota (UND), participated in the IPHEx field campaign by serving as an in situ microphysics sampling platform. This navigation dataset consists of final processed files containing records that include flight time, aircraft location (latitude, longitude, and altitude), air temperature, wind speed, and other relevant aircraft parameters in ASCII format.

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
                                            [
  "026:00"
]
contactPoint 
                                            {
  "fn": "Earthdata Forum",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:earthdata-support@nasa.gov"
}
description The GPM Ground Validation UND Citation Navigation Data IPHEx dataset supplies navigation data collected by the Cessna Citation II aircraft for flights that occurred during March 6, 2014 through June 13, 2014 for the Global Precipitation Measurement Ground Validation Integrated Precipitation and Hydrology Experiment (IPHEx) field campaign in North Carolina. The goal of IPHEx was to evaluate the accuracy of satellite precipitation measurements and use the collected data for hydrology models in the region. The Cessna Citation II Research aircraft, owned and operated by the University of North Dakota (UND), participated in the IPHEx field campaign by serving as an in situ microphysics sampling platform. This navigation dataset consists of final processed files containing records that include flight time, aircraft location (latitude, longitude, and altitude), air temperature, wind speed, and other relevant aircraft parameters in ASCII format.
distribution 
                                            [
  {
    "@type": "dcat:Distribution",
    "title": "Original Metadata",
    "format": "ISO",
    "mediaType": "text/xml",
    "conformsTo": "http://www.isotc211.org/2005/gmi",
    "description": "The metadata's original source.",
    "downloadURL": "https://cmr.earthdata.nasa.gov/search/concepts/C1979635316-GHRC_DAAC.iso19115"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "http://airborneresearch.atmos.und.edu/"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "http://airborneresearch.atmos.und.edu/dataformat.aspx"
  },
  {
    "@type": "dcat:Distribution",
    "format": "HTML",
    "mediaType": "text/html",
    "downloadURL": "http://dx.doi.org/10.1007/s12145-010-0061-4"
  },
  {
    "@type": "dcat:Distribution",
    "format": "HTML",
    "mediaType": "text/html",
    "downloadURL": "http://dx.doi.org/10.5067/GPMGV/IPHEX/DATA101"
  },
  {
    "@type": "dcat:Distribution",
    "format": "HTML",
    "mediaType": "text/html",
    "downloadURL": "https://doi.org/10.7924/G8CC0XMR"
  },
  {
    "@type": "dcat:Distribution",
    "format": "PDF",
    "mediaType": "application/pdf",
    "downloadURL": "https://ghrc.earthdata.nasa.gov/browseui/#pub/gpmnavcitiphx__1/docs/Citation_IPHEX_MissionSummary.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "format": "PDF",
    "mediaType": "application/pdf",
    "downloadURL": "https://ghrc.earthdata.nasa.gov/browseui/#pub/gpmnavcitiphx__1/docs/gpmnavcitiphx_dataset.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://ghrc.nsstc.nasa.gov/home/about-ghrc/citing-ghrc-daac-data"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://ghrc.nsstc.nasa.gov/home/field-campaigns/iphex"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://search.earthdata.nasa.gov/search?q=gpmnavcitiphx"
  }
]
identifier 10.5067/GPMGV/IPHEX/NAV/DATA/001
keyword 
                                            [
  "earth-science-atmospheric-pressure-atmosphere-atmospheric-pressure-measurements",
  "earth-science-atmospheric-temperature-atmosphere-upper-air-temperature",
  "earth-science-atmospheric-winds-atmosphere-upper-level-winds",
  "earth-science-atmospheric-winds-atmosphere-wind-dynamics-turbulence",
  "earth-science-platform-characteristics-spectral-engineering-airspeed-ground-speed",
  "earth-science-platform-characteristics-spectral-engineering-attitude-characteristics",
  "earth-science-platform-characteristics-spectral-engineering-data-synchronization-time"
]
license https://www.usa.gov/government-works
modified 2026-04-06
programCode 
                                            [
  "026:000"
]
publisher 
                                            {
  "name": "NASA/MSFC/GHRC",
  "@type": "org:Organization"
}
spatial 
                                            "["CARTESIAN",[{"WestBoundingCoordinate":-81,"NorthBoundingCoordinate":46.5,"EastBoundingCoordinate":-78,"SouthBoundingCoordinate":43.5}]]"
temporal 2014-03-06/2014-06-13
theme 
                                            [
  "Earth Science"
]
title GPM GROUND VALIDATION UND CITATION NAVIGATION DATA IPHEx V1

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