The effective use of climate data and products requires an understanding of what the statistical parameters mean and which parameters best summarize the data for particular climate variables. This lesson addresses both concerns, taking a two-pronged approach: 1) focusing on the statistical parameters (mean, median, mode, extreme values, percent frequency of occurrence and time, range, standard deviation, and data anomalies), defining what they mean and how they are calculated using climate data as examples, and 2) focusing on weather and climate variables, identifying the statistical parameters that best represent each one. The lesson concludes with a discussion of data quality and its impact on weather and climate products. The lesson is intended for forecasters and others interested in improving their understanding of the basic statistics used in climate products so they can make better use of climatology products for planning and operational purposes. Basic knowledge of meteorology is beneficial although not required. This lesson is part of COMET’s Climatology for Forecasters series.
Define mean, mode, frequency of occurrence and time, extreme value, range, standard deviation, and data anomalies.
Using climate data, calculate each statistical parameter (other than standard deviation).
Understand which statistical parameters best describe various climate variables.
Describe the impacts of data quality on climatology products.
statistics, climatology, mean, mode, median, standard deviation, range, extreme values, anomalies, frequency of occurrence, frequency of time climate data
July 2019 - The lesson was updated to current internet standards (mp4/html5), with no changes to content.
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