The Global Precipitation Measurement Ground Validation (GPM GV) campaign used a variety of methods for validation of GPM satellite constellation measurements prior to and after launch of the GPM Core Satellite, which launched on February 27, 2014. The instrument validation effort included numerous GPM-specific and joint agency/international external field campaigns, using state of the art cloud and precipitation observational infrastructure (polarimetric radars, profilers, rain gauges, and disdrometers). Surface rainfall was measured by very dense rain gauge and disdrometer networks at various field campaign sites. These field campaigns accounted for the majority of the effort and resources expended by GPMGV.
The Olympic Mountains Experiment (OLYMPEX) was one of the GPM Ground Validation field campaigns held in the Pacific Northwest during the winter of 2015-2016. The goal of OLYMPEX was to validate rain and snow measurements in midlatitude frontal systems as they move from ocean to coast to mountains and to determine how remotely sensed measurements of precipitation by GPM can be applied to a range of hydrologic, weather forecasting, and climate data.
The OLYMPEX campaign consisted of a wide variety of ground instrumentation, several radars, and airborne instrumentation monitoring oceanic storm systems as they approached and traversed the Peninsula and the Olympic Mountains. The OLYMPEX campaign was part of the development, evaluation, and improvement of GPM remote sensing precipitation algorithms.
Cite the Collection
To cite the entire collection, please use the following:
Petersen, W., R. Houze, and L. McMurdie. 2018. GPM Ground Validation OLYMPEX Field Campaign Data Collection [indicate subset used]. Dataset available online [http://earthdata.nasa.gov/centers/ghrc-daac] from the NASA EOSDIS Global Hydrometeorology Resource Center Distributed Active Archive Center Huntsville, Alabama, U.S.A. doi: http://dx.doi.org/10.5067/GPMGV/OLYMPEX/DATA101
For more information on citing data archived by NASA's Global Hydrometeorology Resource Center Distributed Active Archive Center (GHRC DAAC), see NASA's data use policy.
General Characteristics
| Collections | GPM Ground Validation Products |
|---|---|
| Projects | NASA GPM Ground Validation / OLYMPEX |
| Platforms | Ground Stations, NASA ER-2, NASA DC-8, UND Citation II |
| Instruments | COSMIR, APR-3, CPL, AMPR, HIWRAP, CRS, HVPS-3, parsivel, 2DVD, D3R, DOW, MRR, NPOL, 2DC, 2DS, HVPS3, AVAPS, NEXRAD, APU, Pluvio Precipitation Gauges, CDP, CPI Probes, Met One Rain Gauge Pairs, CoSMIR |
| Parameters | Radar Reflectivity, particle size distribution, atmospheric pressure, atmospheric temperature, winds, dewpoint, liquid precipitation, liquid water equivalent, brightness temperature, microwave radiometer, aerosols, layer optical depth, clouds, Doppler radar, Doppler velocity, Radial velocity, radar backscatter, differential reflectivity |
| Processing level | 4> |
| Formats | ASCII, ASCII-IWG1, XML, ASCII-eol, PNG, netCDF-4, ASCII-tsv, HDF-5, ASCII-csv, Binary, HDF-4, netCDF-3, netCDF-4/CF, UF |
