Tropical cyclone kinematic structure retrieved from single-doppler radar observations. Part I: Interpretation of Doppler velocity patterns and the GBVTD technique
Journal
Monthly Weather Review
Journal Volume
127
Journal Issue
10
Pages
2419-2439
Date Issued
1999
Author(s)
Abstract
Deducing the three-dimensional primary circulation of landfalling tropical cyclones (TCs) from single groundbased Doppler radar data remains a difficult task. The evolution and structure of landfalling TCs and their interactions with terrain are left uncharted due to the lack of dual-Doppler radar observations. Existing groundbased single-Doppler radar TC algorithms provide only qualitative information on axisymmetric TC center location and intensity. In order to improve understanding of the wind structures of landfalling TCs using the widely available WSR-88D data along the U.S. coastal region, a single ground-based radar TC wind retrieval technique, the ground-based Velocity Track Display (GBVTD) technique, is developed. Part I of this paper presents 1) single-Doppler velocity patterns of analytic, asymmetric TCs, 2) derivation of the GBVTD technique, and 3) evaluation of the GBVTD-retrieved winds using analytic TCs.
SDGs
Type
journal article