NSIDC-0027
TOVS Pathfinder Path-P Daily and Monthly Polar Gridded Atmospheric Parameters
J. A. Francis and A. J. Schweiger
TOVS Pathfinder Path-P Daily and Monthly Polar Gridded Atmospheric Parameters
1999-09-01updated 2008
Boulder, Colorado USA
NSIDC: National Snow and Ice Data Center
http://nsidc.org/data/nsidc-0027.html
Investigator
Jennifer
A.
Francis
francis@apl.washington.edu
1 206 543-1254
1 206 543-3521
Institute of Marine and Coastal Sciences
Rutgers University
New Brunswick, New Jersey
USA
Investigator
Axel
J.
Schweiger
axel@apl.washington.edu
1 206 543-1312
1 206 543-3521
Applied Physics Laboratory
University of Washington
1013 NE 40th Street
Seattle
WA
98105-6698
USA
Technical Contact
NSIDC
User Services
nsidc@nsidc.org
1 303 492-6199 x
1 303 492-2468 x
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder
CO
80309-0449
USA
EARTH SCIENCE
Atmosphere
Atmospheric Radiation
Emissivity
EARTH SCIENCE
Atmosphere
Atmospheric Radiation
Emissivity
EARTH SCIENCE
Atmosphere
Atmospheric Temperature
Air Temperature
EARTH SCIENCE
Atmosphere
Atmospheric Temperature
Air Temperature
EARTH SCIENCE
Atmosphere
Atmospheric Temperature
Skin Temperature
EARTH SCIENCE
Atmosphere
Atmospheric Temperature
Skin Temperature
EARTH SCIENCE
Atmosphere
Atmospheric Temperature
Surface Air Temperature
EARTH SCIENCE
Atmosphere
Atmospheric Temperature
Surface Air Temperature
EARTH SCIENCE
Atmosphere
Atmospheric Water Vapor
Precipitable Water
EARTH SCIENCE
Atmosphere
Atmospheric Water Vapor
Precipitable Water
EARTH SCIENCE
Atmosphere
Atmospheric Winds
Wind Stress
Geostrophic Drag Coefficient
EARTH SCIENCE
Atmosphere
Atmospheric Winds
Wind Stress
Geostrophic Drag Coefficient
EARTH SCIENCE
Atmosphere
Clouds
Cloud Amount/Frequency
Effective Cloud Fraction
EARTH SCIENCE
Atmosphere
Clouds
Cloud Amount/Frequency
Effective Cloud Fraction
EARTH SCIENCE
Atmosphere
Clouds
Cloud Top Pressure
EARTH SCIENCE
Atmosphere
Clouds
Cloud Top Pressure
EARTH SCIENCE
Atmosphere
Clouds
Cloud Top Temperature
EARTH SCIENCE
Atmosphere
Clouds
Cloud Top Temperature
EARTH SCIENCE
Oceans
Ocean Winds
Wind Stress
EARTH SCIENCE
Oceans
Ocean Winds
Wind Stress
Climatology/Meteorology/Atmosphere
Atmospheric Stratification
Boundary Layer
Boundary Layer Stratification
Cloud Fraction
Cloud Properties
Cloud Top Pressure
Cloud Tops
Cloud Top Temperature
DAAC
EOSDIS
Geostrophic Drag Coefficient
Geostrophic Wind
Humidity Profiles
Ice
ICE SURFACE SKIN TEMPERATURE
INITIALIZATION INVERSION ALGTHM
NOAA/NASA Pathfinder
North Polar Basin
NSIDC DAAC
Ocean Surface Skin Temperature
Path P
Polar Exchange At Sea Surface
Poles
SNOW ICE
Temperature Profiles
TOVS
Turning Angle
HIRS
High Resolution Infrared Radiation Sounder
MSU
Microwave Sounding Unit
SOUNDERS
TOVS
TIROS Operational Vertical Sounder
NOAA-10
National Oceanic & Atmospheric Administration-10
NOAA-11
National Oceanic & Atmospheric Administration-11
NOAA-12
National Oceanic & Atmospheric Administration-12
NOAA-13
National Oceanic & Atmospheric Administration-13
NOAA-14
National Oceanic & Atmospheric Administration-14
NOAA-6
National Oceanic & Atmospheric Administration-6
NOAA-7
National Oceanic & Atmospheric Administration-7
NOAA-8
National Oceanic & Atmospheric Administration-8
NOAA-9
National Oceanic & Atmospheric Administration-9
1979-01-01
1979-07-12
in work
-90
-60
-180
180
60
90
-180
180
GEOGRAPHIC REGION
NORTHERN HEMISPHERE
GEOGRAPHIC REGION
SOUTHERN HEMISPHERE
100 km
100 km
CEAREX
Coordinated Eastern Arctic Experiment
EOSDIS
Earth Observing System Data Information System
ESIP
Earth Science Information Partners Program
NOAA/NASA PATHFINDER
NOAA/NASA Pathfinder Program
The algorithm used to generate these grids has been validated directly through comparisons with surface observations from the CEAREX experiment and with radiosonde data from Soviet ice stations. Comparisons with other TOVS retrieval algorithms provided further validation. Additionally, Schweiger et al. (1999) found a strong correlation between the TOVS Path-P data and surface cloud observations obtained from the North Polar drifting meteorological stations, which indicates that the TOVS data effectively represent annual cloud cover.
Users are strongly encouraged to register before accessing data. Registered users automatically receive release notes via e-mail containing notification of data manipulation or formatting modifications.
English
NSIDC_DAAC
NASA DAAC at the National Snow and Ice Data Center
http://nsidc.org/daac/index.html
Data Center Contact
NSIDC
User Services
nsidc@nsidc.org
1 303 492-6199
1 303 492-2468
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder
CO
80309-0449
USA
NSIDC
National Snow and Ice Data Center
http://nsidc.org
Data Center Contact
NSIDC
User Services
nsidc@nsidc.org
1 303 492-6199
1 303 492-2468
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder
CO
80309-0449
USA
FTP
494.5 - 760.6 MB
HDF
Armstrong, R. L. and M. J. Brodzik. 1995. An Earth-gridded SSM/I Data Set for Cryospheric Studies and Global Change Monitoring. Advances in Space Research 16:155-63.
Brodzik, M. J. 1998. The EASE-Grid, A Versatile Set of Equal-Area Projections and Grids. Special report to the National Snow and Ice Data Center, Boulder, Colorado USA.
Brodzik, M. J. 1998. Summary of NOAA/NASA Polar Pathfinder Grid Relationships. Special report to the National Snow and Ice Data Center, Boulder, Colorado USA.
Chedin, A., N. A. Scott, C. Wahiche, P. Moulineier. 1985. The Improved Initialization Inversion Method: A high Resolution Physical Method for Temperature Retrievals from Satellites of the TIROS-N Series. Journal of Climate and Applied Meteorology pp. 62-65.
Chiaachio, M., J. Francis, and P. W. Stackhouse, Jr. 1998. Evaluation and Development of Nighttime Arctic Cloud Base Algorithms for CERES. American Meteorological Society 5th Conference on Polar Meteorology and Oceans. pp. 300-05.
Francis, J., A. Munchow, and R. Cermak. 1998. Analyses of Long-term 10-meter Winds over the Arctic Basin. American Meteorological Society 5th Conference on Polar Meteorology and Oceans. pp. 66-68.
Francis, J. and A. Schweiger. 1999. A New Window to the Arctic. Journal of Climate 12(8) (August): 2189-2213, Part I.
Francis, J. A. 1994. Improvements to TOVS Retrievals over Sea Ice and Applications to Estimating Arctic Energy Fluxes. Journal of Geophysical Research 99(D5):10,395-408.
Francis, J. and A. Schweiger. 1998. The NASA/NOAA TOVS Polar Pathfinder: 18 Years of Arctic data. American Meteorological Society 5th Conference on Polar Meteorology and Oceans. 24:128-43.
Francis, J. A. 1994. Improvements to TOVS Retrievals over Sea Ice and Applications to Estimating Arctic Energy Fluxes. Journal of Geophysical Research 99(D5):10,395-408.
Goddard Space Flight Center. 1994. EOSDIS Version 0 Data Product Implementation Guidelines. Draft Version 1.0 (March 1, 1994). GSFC 50-003-04. GSFC. Greenbelt, MD.
Groves, D. G. 1998. A New Moisture Budget of the Arctic Atmosphere Derived from 19 Years of Daily TOVS Satellite Moisture Retrievals and NCEP Reanalysis Winds. American Meteorological Society 5th Conference on Polar Meteorology and Oceans. pp. 107-12.
Groves, D. G. 1998. Temporal Variability of Arctic Atmospheric Moisture Budget Quantities Derived from Daily TOVS Satellite Moisture Retrievals and NCEP Reanalysis Winds. American Meteorological Society 5th Conference on Polar Meteorology and Oceans. pp. 380-82.
Key, J., D. Slayback, C. Xu, and A. Schweiger. 1998. New Climatologies of Polar Clouds and Radiation Based on the ISCCP 'D' Products. American Meteorological Society 5th Conference on Polar Meteorology and Oceans. pp. 227-32.
National Center for Supercomputing Applications. 1994. HDF Reference Manual. Version 3.3. University of Illinois at Urbana-Champaign.
National Oceanic and Atmospheric Administration. 1991. NOAA Polar Orbiter Data Users Guide. Washington, D.C.: National Environmental Satellite, Data and Information Service, National Climatic Data Center Satellite Data Services Division.
Overland, J. E., and R. L. Colony. 1994. Geostrophic Drag Coefficients over the Central Arctic Derived from Soviet Drifting Station Data. Tellus. 46(A):75-85.
Overland, J. E., and K. L. Davidson. 1992. Geostrophic Drag Coefficients over Sea Ice. Tellus. 44(A):54-66.
Schweiger, A. J., R. W. Lindsay, J. R. Key, and J. A. Francis. 1999. Arctic Clouds in Multiyear Satellite Data Sets. Geophysical Research Letters 26(13):1,845-48. Document is also available online at http://www.agu.org/GRL/articles/1999GL900479/GL841W01.pdf .
Schweiger A., C. Fowler, J. Key, J. Maslanik, J. Francis, R. Armstrong, M. J. Brodzik, T. Scambos, T. Haran, M. Ortmeyer, S. Khalsa, D. Rothrock, R. Weaver. 1998. P-Cube: A Multi-sensor Data Set for Polar Climate Research. American Meteorological Society 5th Conference on Polar Meteorology and Oceans. pp. 136-141.
Schweiger, A., Francis, J. 1994. TOVS Pathfinder Path-P Gridded Daily and Monthly Arctic Atmospheric Data from TOVS User's Guide. Draft version 0.1. University of Washington, Seattle.
Schweiger, A. J., R. W. Lindsay, J. A. Francis, J. R. Key, J. Intrieri, M. Shupe. Validation of TOVS Path-P Data During SHEBA. Submitted to Journal of Geophysical Research, May 2000. (http://psc.apl.washington.edu/pathp/html/publications/papers_list.html#S2000)
Stubenrauch, C. J, W. B. Rossow, F. Cheruy, A. Chedin and N. A. Scott. 1999. Clouds as Seen by Satellite Sounders (3) and Imagers (ISCCP), Part I. Evaluation of Cloud Parameters. Journal of Climate 12 (8) (August): 2189-2213.
The TIROS-N Operational Vertical Sounder (TOVS) Polar Pathfinder (Path-P) data set consists of gridded daily and monthly Arctic and Antarctic atmospheric data derived from various NOAA satellites. TOVS Path-P daily files are available for the Northern and Southern Hemispheres from 60 degrees poleward at 100 km gridded spatial resolution in an Equal-Area Scalable Earth Grid (EASE-Grid). TOVS Path-P monthly files are available for the Northern Hemisphere only from 60 degrees poleward at 100 km gridded spatial resolution in EASE-Grid. Daily and monthly Northern Hemisphere data are available from January 1979 through current processing, and daily Southern Hemisphere data are available from July 1979 through current processing. Data were created from a modified version of the Improved Initialization Inversion Algorithm (3I) (Chedin et al. 1985), a physical-statistical retrieval method improved for use in identifying geophysical variables in snow- and ice-covered areas (Francis 1994).
Variables retrieved from satellite-observed radiances for this product include atmospheric temperature, water vapor, skin surface temperature, total effective cloud fraction, cloud top pressure and temperature, solar zenith elevation, surface pressure, turning angle between geostrophic wind and surface stress over ice, emissivity, boundary layer stratification, and geostrophic drag coefficient. The algorithm used to generate these grids has been validated through comparisons with surface observations from the North Pole drifting meteorological stations (Schweiger et al. 1999).
The complete TOVS data set is available via FTP in Hierarchical Data Format (HDF). Users may also order subsets of the data for any of the parameters listed above or for specific spatial or temporal coverage.
Data users are encouraged to register before accessing the TOVS data. Registered users automatically receive release notes via e-mail containing notification of data manipulation or formatting modifications.
VIEW PROJECT HOME PAGE
http://nsidc.org/daac/pathfinder/index.html
DAAC Data: The NOAA/NASA Polar Pathfinder Program
VIEW PROJECT HOME PAGE
http://psc.apl.washington.edu/pathp/
Path-P: TOVS Polar Pathfinder Gridded Daily Arctic Atmospheric Data fromTOVS
VIEW PROJECT HOME PAGE
http://psc.apl.washington.edu/pathp/
Path-P: TOVS Polar Pathfinder
Gridded Daily Arctic Atmospheric Data from TOVS
VIEW RELATED INFORMATION
http://nsidc.org/data/ease/
EASE-Grid Data
USA/NASA
CEOS IDN DIF
9.7
1999-09-01
2012-07-09
corrected dist. size