International Satellite Cloud Climatology Project (ISCCP) Climate Data Record, H-Series

Metadata Updated: February 27, 2019

The International Satellite Cloud Climatology Project (ISCCP) focuses on the distribution and variation of cloud radiative properties to improve the understanding of the effects of clouds on climate, the radiation budget, and the long-term global hydrologic cycle.

The ISCCP H-Series Climate Data Record consists of several parts: (1) ISCCP H-Series dataset, (2) ISCCP-Basic H-Series, and (3) Ancillary and input datasets.

ISCCP H Series data The full ISCCP dataset consists of netCDF files containing various derived cloud parameters. The H-Series data includes several products. These include: * HXS (H-series pixel level single satellite - not in netcdf), HXG (H-series pixel level gridded), HGG (H-series Gridded Global), HGH (H-series gridded monthly by hour), and HGM ( H-series Gridded Monthly). The netCDF files are not structured with CF-standard names. Data variables are unitless and rely on data tables that are needed to represent each geophysical variable. Keeping ISCCP H-Series in this native format ensures that existing "power users" will be able to continue using the data.

ISCCP Basic H Series ISCCP Basic files contains a subset of the cloud variables and products available in the full ISCCP dataset. It consists of remapped, calibrated, and subsetted variables following CF-conventions. In addition, the netCDF files follow full netCDF CF and ACDD Conventions. These files are intended to be use by new and/or less advanced users that may want to use cloud data, but do not need the full ISCCP dataset.

Ancillary and Input data Ancillary and Input data used in the production of ISCCP are also archived. These consist of B1U geostationary satellite data, B1U and GAC calibration/HBT tables, and ancillary files for nnHIRS, AEROSOL, SNOWICE, and OZONE datasets.

Access & Use Information

Downloads & Resources


Metadata Date November 5, 2018
Metadata Created Date February 7, 2018
Metadata Updated Date February 27, 2019
Reference Date(s) June 15, 2017 (publication)
Frequency Of Update quarterly

Metadata Source

Harvested from NOAA CSW Harvest Source

Graphic Preview

2009 - January Mean Cloud Amount (Sample)

Additional Metadata

Resource Type Dataset
Metadata Date November 5, 2018
Metadata Created Date February 7, 2018
Metadata Updated Date February 27, 2019
Reference Date(s) June 15, 2017 (publication)
Responsible Party DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (Point of Contact)
Contact Email
Access Constraints Cite as: Rossow, W.B.; Walker, A.; Golea, V.; Knapp, K. R.; Young, A.; Inamdar A.; Hankins, B.; and NOAA's Climate Data Record Program (2016): International Satellite Cloud Climatology Project Climate Data Record, H-Series [indicate subset used] NOAA National Centers for Environmental Information. [access date]. doi:10.7289/V5QZ281S, See the Use Agreement for this CDR available on the CDR dataset page., Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives., Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Bbox East Long 180.0
Bbox North Lat 90.0
Bbox South Lat -90.0
Bbox West Long -180.0
Coupled Resource
Frequency Of Update quarterly
Graphic Preview Description 2009 - January Mean Cloud Amount (Sample)
Graphic Preview File
Graphic Preview Type PNG
Guid gov.noaa.ncdc:C00956
Harvest Object Id c6df623b-924f-42da-9cfd-d631753949a5
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Licence Even long-term averages show systematic spatial patterns in cloud amount and cloud properties caused by relying on geostationary satellites. Internally-inconsistent retrievals are included in averages, so that total cloudiness and the amount of very high, optically thin clouds is overstated to an unknown degree. Approximately 10% of the planet is covered with partly cloudy pixels and many of these are treated as fully cloudy in ISCCP data, complicating comparisons with models., See the Algorithm Theoretical Basis Document for a description of the use limitations for this dataset.
Metadata Language
Metadata Type geospatial
Progress planned
Spatial Data Service Type
Spatial Reference System urn:ogc:def:crs:EPSG::4326
Spatial Harvester True
Temporal Extent Begin 1982-01-01

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