This website's content is no longer actively maintained, but the material has been kept on-line for historical purposes.
The page may contain broken links or outdated information, and interactive components may no longer work.

Please note that ISCCP data processing is now performed at NOAA/NCEI.
Please visit the NOAA/NCEI website for access to ISCCP H data products and other up-to-date information.

Global Weather States from ISCCP HGG Cloud Dataset

The optimum cluster centroids are identified for K=10 as shown below.

Mean PC-τ plots for the HGG global domain
Figure 1: Mean PC-τ plots for the HGG global domain

Geographic distribution of Weather States for the HGG global domain
Figure 2: Geographic distribution of Weather States for the HGG global domain

To download ISCCP global, 3-hourly HGG weather state (WS) data in netCDF form, click here. The dataset is at 1-degree horizontal resolution, it currently (as of May 2021) covers the period from July 1983 to June 2017. It will be updated as the HGG dataset is expanded.

After downloading the HGG WS data, refer to the README.txt file for a detailed description of the data, the H1.py script for an example of using the data in Python, and H1.ipynb (requires jupyter notebook) for an interactive version of H1.py.

Please direct questions about the Global Weather States from HGG data to Dr. George Tselioudis or Dr. Jamine Rémillard.

This material is based upon work supported by the NASA MEaSUREs Program.

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