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Polar Pathfinder Sampler (PPSM): Polar Pathfinder Products (P-Cube) data cube multi-sensor data at 100km resolution

Update Frequency: Not Planned
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2007-02-06
Download Stats: last 12 months


The P-Cube data set is a 100 km resolution subset of many important variables from three Polar Pathfinder Projects in common projection (Lambert azimuthal equal-area) and common grid (EASE-Grid). For the first time, data sets from multiple sensors measuring the Arctic region are being distributed in a manner that facilitates study of polar processes and interactions between them. A "data cube" of the Polar Pathfinder Products, hence the name "P-Cube," allows users to access variables derived from three satellite sensors and use them together. The common spatial resolution for P-Cube is dictated by the lowest resolution product (TOVS data). The P-Cube allows browsing of the multi-sensor data and exploring the relationships among the variables. For AVHRR and SSM/I data, the user may turn to the full resolution, single instrument Polar Pathfinder data sets for greater details.

A wide range of polar climate research applications is possible using this multi-dimensional suite of variables from AVHRR, TOVS and passive microwave instruments. The prototype version of the P-Cube included on this CD-ROM has a temporal coverage of January 1, 1988 to December 31, 1989, and a spatial coverage poleward of 60 degrees N latitude. Future versions of the P-Cube will have expanded temporal and spatial coverage, as well as additional variables.

The current prototype version of the P-Cube includes the following: atmospheric temperature (10 levels), precipitable water (5 layers), boundary layer stratification parameter, geostrophic drag coefficient, turning angle, and microwave surface emissivity (from TOVS); surface albedo, surface (skin) temperature, solar zenith angle, cloud fraction, standard deviation of surface albedo, and standard deviation of surface temperature (from AVHRR); and total ice concentration, surface type and ice velocity (from AVHRR and SSM/I). From the National Centers for Environmental Prediction (NCEP) surface pressure is provided.

Please note that the P-Cube data set is a prototype for a potential long term data set consisting of integrated Polar Pathfinder Products. At the time of the production of the Polar Pathfinder Sampler CD-ROM, the algorithms for a number of variables are still undergoing development and validation.

Citable as:  National Snow and Ice Data Centre; Schweiger, A.; Fowler, C.; Maslanik, J. (2007): Polar Pathfinder Sampler (PPSM): Polar Pathfinder Products (P-Cube) data cube multi-sensor data at 100km resolution. NCAS British Atmospheric Data Centre, date of citation.
Abbreviation: PPSM-P-CUBE


Previous Info:
No news update for this record
Previously used record identifiers:
Access rules:
Public data: access to these data is available to both registered and non-registered users.
Use of these data is covered by the following licence: When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

CD-ROM data produced by the National Snow and Ice Data Centre and published in 2000. Data are stored at the BADC.

Data Quality:
File Format:
Data are HDF formatted. Images are GIF formatted

Process overview

This dataset was generated by a combination of instruments deployed on platforms and computations as detailed below.

Computation Element: 1

Title DETAILS NEEDED - COMPUTATION CREATED FOR SATELLITE COMPOSITE. deployed on Defense Meteorological Satellite Program (DMSP) Satellites
Abstract This computation involved: DETAILS NEEDED - COMPUTATION CREATED FOR SATELLITE COMPOSITE. deployed on Defense Meteorological Satellite Program (DMSP) Satellites.
Input Description None
Output Description None
Software Reference None
Output Description None
  • long_name: Air Temperature
  • gcmd_url:
  • gcmd_keyword: Air Temperature
  • names: Air Temperature,
  • long_name: Albedo
  • gcmd_url:
  • gcmd_keyword: EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Albedo
  • names: EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Albedo,
  • long_name: Atmospheric Stability
  • gcmd_url:
  • gcmd_keyword: Atmospheric Stability
  • names:, Atmospheric Stability
  • long_name: Boundary Layer Stratification Parameter
  • names: Boundary Layer Stratification Parameter
  • long_name: Brightness Temperature
  • gcmd_url:
  • gcmd_keyword: Brightness Temperature
  • names: Brightness Temperature,
  • long_name: Cloud Amount
  • names: Cloud Amount
  • long_name: Cloud Fraction
  • names: Cloud Fraction
  • long_name: Cloud Top Pressure
  • gcmd_url:
  • gcmd_keyword: Cloud Top Pressure
  • names: Cloud Top Pressure,
  • long_name: Cloud Top Temperature
  • gcmd_url:
  • gcmd_keyword: Cloud Top Temperature
  • names: Cloud Top Temperature,
  • long_name: Emissivity
  • gcmd_url:
  • gcmd_keyword: EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Emissivity
  • names: EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Emissivity,
  • long_name: Frequency
  • names: Frequency
  • long_name: Geostrophic Drag Co-Efficient
  • names: Geostrophic Drag Co-Efficient
  • long_name: Ice
  • names: Ice
  • long_name: Ice Extent
  • gcmd_url:
  • gcmd_keyword: Ice Extent
  • names: Ice Extent,
  • long_name: Ice Growth
  • names: Ice Growth
  • long_name: Ice Temperature
  • gcmd_url:
  • gcmd_keyword: Ice Temperature
  • names: Ice Temperature,
  • long_name: Ice Types
  • gcmd_url:
  • gcmd_keyword: Ice Types
  • names:, Ice Types
  • long_name: Ice Velocity
  • gcmd_url:
  • gcmd_keyword: Ice Velocity
  • names: Ice Velocity,
  • long_name: Melt
  • names: Melt
  • long_name: Microwave
  • gcmd_url:
  • gcmd_keyword: EARTH SCIENCE > Spectral/Engineering > Microwave
  • names:, EARTH SCIENCE > Spectral/Engineering > Microwave
  • long_name: Microwave Surface Emissivity
  • names: Microwave Surface Emissivity
  • long_name: Precipitable Water
  • gcmd_url:
  • gcmd_keyword: Precipitable Water
  • names: Precipitable Water,
  • long_name: Sea Ice Concentration
  • gcmd_url:
  • gcmd_keyword: Sea Ice Concentration
  • names: Sea Ice Concentration,
  • long_name: Sea Ice Motion
  • gcmd_url:
  • gcmd_keyword: Sea Ice Motion
  • names: Sea Ice Motion,
  • long_name: Skin Temperature
  • gcmd_url:
  • gcmd_keyword: Skin Temperature
  • names:, Skin Temperature
  • long_name: Snow
  • gcmd_url:
  • gcmd_keyword: EARTH SCIENCE > Atmosphere > Precipitation > Snow
  • names:, EARTH SCIENCE > Atmosphere > Precipitation > Snow
  • long_name: Solar Irradiance
  • gcmd_url:
  • gcmd_keyword: Solar Irradiance
  • names:, Solar Irradiance
  • long_name: Solar Zenith Angle
  • names: Solar Zenith Angle
  • long_name: Surface (Skin) Temperature
  • names: Surface (Skin) Temperature
  • long_name: Surface Broadband Albedo
  • names: Surface Broadband Albedo
  • long_name: Total Effective Cloud Fraction
  • names: Total Effective Cloud Fraction
  • long_name: Turning Angle
  • names: Turning Angle
  • long_name: Upper Level Winds
  • gcmd_url:
  • gcmd_keyword: Upper Level Winds
  • names:, Upper Level Winds

Co-ordinate Variables

Temporal Range
Start time:
End time:
Geographic Extent