Near-Surface Maximum Winds During the Landfall of Hurricane Harvey.

Addison Alford; Michael Biggerstaff; Gordon Carrie; John Schroeder; Brian Hirth; Sean Waugh

doi:10.1029/2018GL080013

Near-Surface Maximum Winds During the Landfall of Hurricane Harvey.

Addison Alford, Michael Biggerstaff, Gordon Carrie, John Schroeder, Brian Hirth, Sean Waugh

Research output: Contribution to journal › Article › peer-review

Abstract

A mobile Shared Mobile Atmospheric Research and Teaching (SMART) radar was deployed in Hurricane Harvey and coordinated with the Corpus Christi, TX, WSR‐88D radar to retrieve airflow during landfall. Aerodynamic surface roughness estimates and a logarithmic wind profile assumption were used to project the 500‐m radar‐derived maximum wind field to near the surface. The logarithmic wind assumption was justified using radiosonde soundings taken within the storm, while the radar wind estimates were validated against an array of StickNets. For the data examined here, the radar projections had root‐mean‐squared error of 3.9 m/s and a high bias of 2.3 m/s. Mesovorticies in Harvey's eyewall produced the strongest radar‐observed winds. Given the wind analysis, Harvey was, at most, a Category 3 hurricane (50–58 m/s sustained winds) at landfall. This study demonstrates the utility of integrated remote and in situ observations in deriving spatiotemporal maps of wind maxima during hurricane landfa

Original language	English
Pages (from-to)	973-982
Journal	Geophysical Research Letters
DOIs	https://doi.org/10.1029/2018GL080013
State	Published - Jan 16 2019

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title = "Near-Surface Maximum Winds During the Landfall of Hurricane Harvey.",

abstract = "A mobile Shared Mobile Atmospheric Research and Teaching (SMART) radar was deployed in Hurricane Harvey and coordinated with the Corpus Christi, TX, WSR‐88D radar to retrieve airflow during landfall. Aerodynamic surface roughness estimates and a logarithmic wind profile assumption were used to project the 500‐m radar‐derived maximum wind field to near the surface. The logarithmic wind assumption was justified using radiosonde soundings taken within the storm, while the radar wind estimates were validated against an array of StickNets. For the data examined here, the radar projections had root‐mean‐squared error of 3.9 m/s and a high bias of 2.3 m/s. Mesovorticies in Harvey's eyewall produced the strongest radar‐observed winds. Given the wind analysis, Harvey was, at most, a Category 3 hurricane (50–58 m/s sustained winds) at landfall. This study demonstrates the utility of integrated remote and in situ observations in deriving spatiotemporal maps of wind maxima during hurricane landfa",

author = "Addison Alford and Michael Biggerstaff and Gordon Carrie and John Schroeder and Brian Hirth and Sean Waugh",

year = "2019",

month = jan,

day = "16",

doi = "10.1029/2018GL080013",

language = "English",

pages = "973--982",

journal = "Geophysical Research Letters",

publisher = "AGU-Willey",

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T1 - Near-Surface Maximum Winds During the Landfall of Hurricane Harvey.

AU - Alford, Addison

AU - Biggerstaff, Michael

AU - Carrie, Gordon

AU - Schroeder, John

AU - Hirth, Brian

AU - Waugh, Sean

PY - 2019/1/16

Y1 - 2019/1/16

N2 - A mobile Shared Mobile Atmospheric Research and Teaching (SMART) radar was deployed in Hurricane Harvey and coordinated with the Corpus Christi, TX, WSR‐88D radar to retrieve airflow during landfall. Aerodynamic surface roughness estimates and a logarithmic wind profile assumption were used to project the 500‐m radar‐derived maximum wind field to near the surface. The logarithmic wind assumption was justified using radiosonde soundings taken within the storm, while the radar wind estimates were validated against an array of StickNets. For the data examined here, the radar projections had root‐mean‐squared error of 3.9 m/s and a high bias of 2.3 m/s. Mesovorticies in Harvey's eyewall produced the strongest radar‐observed winds. Given the wind analysis, Harvey was, at most, a Category 3 hurricane (50–58 m/s sustained winds) at landfall. This study demonstrates the utility of integrated remote and in situ observations in deriving spatiotemporal maps of wind maxima during hurricane landfa

AB - A mobile Shared Mobile Atmospheric Research and Teaching (SMART) radar was deployed in Hurricane Harvey and coordinated with the Corpus Christi, TX, WSR‐88D radar to retrieve airflow during landfall. Aerodynamic surface roughness estimates and a logarithmic wind profile assumption were used to project the 500‐m radar‐derived maximum wind field to near the surface. The logarithmic wind assumption was justified using radiosonde soundings taken within the storm, while the radar wind estimates were validated against an array of StickNets. For the data examined here, the radar projections had root‐mean‐squared error of 3.9 m/s and a high bias of 2.3 m/s. Mesovorticies in Harvey's eyewall produced the strongest radar‐observed winds. Given the wind analysis, Harvey was, at most, a Category 3 hurricane (50–58 m/s sustained winds) at landfall. This study demonstrates the utility of integrated remote and in situ observations in deriving spatiotemporal maps of wind maxima during hurricane landfa

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DO - 10.1029/2018GL080013

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JO - Geophysical Research Letters

JF - Geophysical Research Letters

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