Title

In situ disdrometer calibration using multiple DSD moments

Authors

Authors

J. E. Lane; T. Kasparis; P. T. Metzger;W. L. Jones

Comments

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Abbreviated Journal Title

Acta Geophys.

Keywords

impact disdrometer; rainfall rate; optical extinction; DSD moments; in; situ calibration; SIZE; Geochemistry & Geophysics

Abstract

In situ calibration is a proposed strategy for continuous as well as initial calibration of an impact disdrometer. In previous work, a collocated tipping bucket had been utilized to provide a rainfall rate based similar to 11/3 moment reference to an impact disdrometer's signal processing system for implementation of adaptive calibration. Using rainfall rate only, transformation of impulse amplitude to a drop volume based on a simple power law was used to define an error surface in the model's parameter space. By incorporating optical extinction second moment measurements with rainfall rate data, an improved in situ disdrometer calibration algorithm results due to utilization of multiple (two or more) independent moments of the drop size distribution in the error function definition. The resulting improvement in calibration performance can be quantified by detailed examination of the parameter space error surface using simulation as well as real data.

Journal Title

Acta Geophysica

Volume

62

Issue/Number

6

Publication Date

1-1-2014

Document Type

Article

Language

English

First Page

1450

Last Page

1477

WOS Identifier

WOS:000343129800013

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