QSCAT-R : The QuikSCAT Tropical Cyclone Radial Structure Dataset / by Daniel R. Chavas, Jonathan L. Vigh

By: Contributor(s): Series: | NCAR Technical NotesBoulder, CO : National Center for Atmospheric Research (NCAR), 2014Content type:
  • text
Media type:
  • unmediated
Carrier type:
  • volume
ISSN:
  • 2153-2397
  • 2153-2400
Subject(s): Online resources: Abstract: This document describes the QuikSCAT Tropical Cyclone Radial Structure Dataset (QSCAT-R), including its parameter and file structure as well as the underlying methodology for its construction. QSCAT-R contains data for the radial structure of near-surface wind and rain rate for tropical cyclones globally during the period 1999-2009. The dataset is derived from the corresponding two-dimensional data fields originally estimated from QuikSCAT satellite measurements and optimized for analysis of tropical cyclones within the NASA Jet Propulsion Laboratory (JPL) QuikSCAT Tropical Cyclone database. QSCAT-R includes radial profiles of total wind speed and its azimuthal and radial components and corresponding estimates of canonical wind radii, as well as radial profiles of a quantity proportional to rain rate and, when available, collocated SSM/I cloud liquid data. Additionally, data coverage necessarily varies in space and time due to the nature of satellite remote sensing, and thus QSCAT-R provides a parametric measure of data asymmetry to help quantify this form of uncertainty. Overall, as a relatively small dataset (~100 MB) written in a user-friendly NetCDF format, QSCAT-R offers the research community a significant new tool for the analysis of the radial structure of tropical cyclones in nature.
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REPORT REPORT NCAR Library Mesa Lab 03714 1 Available 50583020005884
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2014 - 12

Technical Report

This document describes the QuikSCAT Tropical Cyclone Radial Structure Dataset (QSCAT-R), including its parameter and file structure as well as the underlying methodology for its construction. QSCAT-R contains data for the radial structure of near-surface wind and rain rate for tropical cyclones globally during the period 1999-2009. The dataset is derived from the corresponding two-dimensional data fields originally estimated from QuikSCAT satellite measurements and optimized for analysis of tropical cyclones within the NASA Jet Propulsion Laboratory (JPL) QuikSCAT Tropical Cyclone database. QSCAT-R includes radial profiles of total wind speed and its azimuthal and radial components and corresponding estimates of canonical wind radii, as well as radial profiles of a quantity proportional to rain rate and, when available, collocated SSM/I cloud liquid data. Additionally, data coverage necessarily varies in space and time due to the nature of satellite remote sensing, and thus QSCAT-R provides a parametric measure of data asymmetry to help quantify this form of uncertainty. Overall, as a relatively small dataset (~100 MB) written in a user-friendly NetCDF format, QSCAT-R offers the research community a significant new tool for the analysis of the radial structure of tropical cyclones in nature.

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