Publication

Ceilometer data processing and analysis

2024

Abstract

This semester's project aims to explore the potential of the Vaisala CL61 ceilometer with polarization capacity for characterizing atmospheric observations. To achieve this, a Python pipeline was developed to classify atmospheric targets. The noise was filtered out from the data, enabling an efficient application of K-means clustering. Each cluster was classified by fixing thresholds on attenuated backscatter and linear depolarization ratio. The results show differentiation between liquid and solid scattering targets as well as the identification of aerosol plumes, demonstrating the extended use of ceilometers through their polarization capabilities.

Official source

https://infoscience.epfl.ch/entities/publication/0d071495-584d-487d-899d-17dc9769d1fa

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2024

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/0d071495-584d-487d-899d-17dc9769d1fa

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Related concepts (32)

Cluster analysis

Cluster analysis or clustering is the task of grouping a set of objects in such a way that objects in the same group (called a cluster) are more similar (in some sense) to each other than to those in other groups (clusters). It is a main task of exploratory data analysis, and a common technique for statistical data analysis, used in many fields, including pattern recognition, , information retrieval, bioinformatics, data compression, computer graphics and machine learning.

Data analysis

Data analysis is the process of inspecting, cleansing, transforming, and modeling data with the goal of discovering useful information, informing conclusions, and supporting decision-making. Data analysis has multiple facets and approaches, encompassing diverse techniques under a variety of names, and is used in different business, science, and social science domains. In today's business world, data analysis plays a role in making decisions more scientific and helping businesses operate more effectively.

Data

In common usage and statistics, data (USˈdætə; UKˈdeɪtə) is a collection of discrete or continuous values that convey information, describing the quantity, quality, fact, statistics, other basic units of meaning, or simply sequences of symbols that may be further interpreted formally. A datum is an individual value in a collection of data. Data is usually organized into structures such as tables that provide additional context and meaning, and which may themselves be used as data in larger structures.

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Ceilometer data processing and analysis

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