Climatology of Low Cloud Types over the Global Ocean
Entry ID: JISAO_LOW_CLOUD_TYPE

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Summary
Abstract: The University of Washington Joint Institute for the Study of the
Atmosphere and Ocean (JISAO) offers a Low Cloud Type over the Global
Ocean Climatology. This is a dataset of daytime-only seasonal
climatologies of individual low cloud types over the ocean constructed
by Joel Norris for the time period 1954-1992 using synoptic surface
ship observations. Available parameters are frequency of occurence,
amount when present, and average cloud amount. The ship observations
were obtained from a preliminary release of the Extended Edited Cloud
Report Archive (EECRA) [please contact Carole Hahn (hahn@ncar.ucar.edu)
for information regarding the EECRA (expected to be released in 1998)].

The data are available in three formats:

1. netCDF (COARDS convention)
2. plain binary (4-byte floating point; no FORTRAN-style records)
3. ASCII

This data may be freely downloaded from the JISAO WWW site.
Link to: "http://jisao.washington.edu/data_sets/low_cloud/"

[Summary Adapted from the JISAO Homepage]

Geographic Coverage
 N: 90.0 S: -90.0  E: 180.0  W: -180.0

Data Set Citation
Dataset Originator/Creator: J. Norris
Dataset Title: Climatology of Low Cloud Types over the Global Ocean
Dataset Release Place: Seattle, Washington, USA
Dataset Publisher: Joint Institute for the Study of the Atmosphere and Ocean (JISAO)
Online Resource: http://jisao.washington.edu/data_sets/low_cloud/


Temporal Coverage
Start Date: 1954-01-01
Stop Date: 1992-12-31


Location Keywords
OCEAN > ATLANTIC OCEAN
OCEAN > INDIAN OCEAN
OCEAN > PACIFIC OCEAN
GEOGRAPHIC REGION > GLOBAL OCEAN


Data Resolution
Latitude Resolution: 2.5 degree
Longitude Resolution: 2.5 degree
Temporal Resolution: Seasonal


Science Keywords
ATMOSPHERE >CLOUDS >CLOUD PROPERTIES >CLOUD FREQUENCY    [Definition]
ATMOSPHERE >CLOUDS >CLOUD TYPES >LOW CLOUD TYPE    [Definition]


ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE


Platform
FIXED OBSERVATION STATIONS    [Information]
SHIPS    [Information]


Use Constraints
This data may be freely distributed under the following conditions:
1.notify the author about the intended use of the data
2.acknowledge the source of the data in publications
3.send any feedback to the author

Author: Joel Norris jnorris@ucar.edu


Keywords
FREQUENCY OF CLOUD OCCURENCE


Data Set Progress
COMPLETE


Originating Center
JISAO


Data Center
Joint Institute for the Study of the Atmosphere and Ocean, Department of Atmospheric Sciences, University of Washington    [Information]
Data Center URL: http://www.jisao.washington.edu/

Data Center Personnel
Name: TODD MITCHELL
Email: mitchell at atmos.washington.edu



Distribution
Distribution_Media: Online (HTTP)
Distribution_Format: netCDF, BINARY, ASCII
Fees: None


Personnel
JOEL NORRIS
Role: INVESTIGATOR
Email: jnorris at ucar.edu


SCOTT A. RITZ
Role: DIF AUTHOR
Phone: 301-614-5126
Fax: 301-614-5268
Email: Scott.A.Ritz at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory
City: Greenbelt
Province or State: Maryland
Postal Code: 20771
Country: USA


Publications/References
Norris, J. R. (1998), Low cloud type over the ocean from surface observations. Part II: geographical and seasonal variations, Journal of Climate, 11, 383-403

Creation and Review Dates
Last DIF Revision Date: 2011-04-06

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