GPM GROUND VALIDATION ENVIRONMENT CANADA (EC) PRECIPITATION OCCURRENCE SENSOR SYSTEM (POSS) GCPEX V1

The GPM Ground Validation Environment Canada (EC) Precipitation Occurrence Sensor System (POSS) GCPEx dataset is comprised of data gathered during the GPM Cold-season Precipitation Experiment (GCPEx), which took place in Ontario, Canada, January 15 - March 1, 2012. GCPEx addressed shortcomings in the GPM snowfall retrieval algorithm by collecting microphysical properties, associated remote sensing observations, and coordinated model simulations of precipitating snow. The POSS is a bi-static X-band Doppler radar designed by Environment Canada. The POSS measures a signal whose frequency is proportional to the particle Doppler velocity and whose amplitude is proportional to the particle scattering cross-section. Its measurements can be used to provide information regarding precipitation occurrence, type, rate, and raindrop size distribution.

Data and Resources

Field Value
accessLevel public
bureauCode {026:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://data.nasa.gov/data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
citation Hudak, David .2013. GPM GROUND VALIDATION ENVIRONMENT CANADA (EC) PRECIPITATION OCCURRENCE SENSOR SYSTEM (POSS) GCPEX [indicate subset used]. Dataset available online from the NASA Global Hydrology Resource Center DAAC, Huntsville, Alabama, U.S.A. DOI: http://dx.doi.org/10.5067/GPMGV/GCPEX/POSS/DATA201
graphic-preview-description N/A
graphic-preview-file https://ghrc.nsstc.nasa.gov/pub/fieldCampaigns/gpmValidation/gcpex/poss_EC/browse/
identifier C1625128267-GHRC_CLOUD
issued 2013-09-03
landingPage https://cmr.earthdata.nasa.gov:443/search/concepts/C1625128267-GHRC_CLOUD.html
language {en-US}
metadata_type geospatial
modified 2018-06-06
programCode {026:001}
publisher NASA/MSFC/GHRC
resource-type Dataset
source_datajson_identifier true
source_hash 18ed452694ac4385958586c61a1ab7dd4ae407d2
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-79.93, 44.18], [-79.64, 44.18], [-79.64, 44.23], [-79.93, 44.23], [-79.93, 44.18]]]}
temporal 2012-01-15T00:00:00Z/2012-03-01T23:59:59Z
theme {GCPEx,geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • atmosphere
  • ckan
  • earth-science
  • geo
  • geoss
  • national
  • north-america
  • precipitation
  • radar
  • spectral-engineering
  • united-states
isopen False
license_id notspecified
license_title License not specified
maintainer undefined
maintainer_email support-ghrc@earthdata.nasa.gov
metadata_created 2025-11-19T17:40:23.388283
metadata_modified 2025-11-19T17:40:23.388288
notes The GPM Ground Validation Environment Canada (EC) Precipitation Occurrence Sensor System (POSS) GCPEx dataset is comprised of data gathered during the GPM Cold-season Precipitation Experiment (GCPEx), which took place in Ontario, Canada, January 15 - March 1, 2012. GCPEx addressed shortcomings in the GPM snowfall retrieval algorithm by collecting microphysical properties, associated remote sensing observations, and coordinated model simulations of precipitating snow. The POSS is a bi-static X-band Doppler radar designed by Environment Canada. The POSS measures a signal whose frequency is proportional to the particle Doppler velocity and whose amplitude is proportional to the particle scattering cross-section. Its measurements can be used to provide information regarding precipitation occurrence, type, rate, and raindrop size distribution.
num_resources 8
num_tags 13
title GPM GROUND VALIDATION ENVIRONMENT CANADA (EC) PRECIPITATION OCCURRENCE SENSOR SYSTEM (POSS) GCPEX V1