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Deployment of the SEA-POL C-band Polarimetric Radar to SPURS-2

机译：将SEA-POL C波段极化雷达部署到SPURS-2

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摘要

As part of the Salinity Processes in the Upper-ocean Regional Study (SPURS-2) 2017 cruise to the eastern tropical Pacific, the Colorado State University SEA-POL (SEA-going POLarimetric) C-band radar made its first ever ship deployment. Previous ship-based experiments have used Doppler radars to map rainfall and the structure of oceanic convection, but SPURS-2 marked the first time the US research community deployed a dual-polarimetric radar at sea. Dual-polarimetric radar transmits and receives electromagnetic radiation in both horizontal (H) and vertical (V) polarizations simultaneously and thereby makes additional, important measurements of precipitation compared to a single polarization radar, which normally transmits horizontal polarization only. For H-polarization, the electric field vector of the transmit pulse is horizontal to the local Earths surface; for V-polarization, the electric field vector is perpendicular to Earths surface. Polarization measurements provide information about particle size, shape, and phase (water vs. ice). As a result, superior rain rate estimates are afforded by the dual-polarimetric technology. During SPURS-2, SEA-POL produced rain maps in real time to locate freshwater lenses forming on the oceans surface to develop context for oceanographic measurements of surface temperature and salinity.
机译：作为2017年大洋区域研究（SPURS-2）盐度过程中的一部分，它航行到东部热带太平洋，科罗拉多州立大学SEA-POL（SEA进行极化）C波段雷达首次部署。以前的舰船实验已经使用多普勒雷达绘制降雨和海洋对流结构的地图，但是SPURS-2标志着美国研究界首次在海上部署双极化雷达。双极化雷达同时发射和接收水平（H）极化和垂直（V）极化的电磁辐射，因此与通常只发射水平极化的单极化雷达相比，它可以进行更多重要的降水测量。对于H极化，发射脉冲的电场矢量与本地地球表面水平；对于V极化，电场矢量垂直于地球表面。极化测量可提供有关粒径，形状和相（水与冰）的信息。结果，双极化技术提供了优越的降雨率估计。在SPURS-2期间，SEA-POL实时制作了降雨图，以定位形成在海洋表面的淡水晶状体，从而为海洋学测量地表温度和盐度提供了背景。

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  • 来源
    《Oceanography》 |2019年第2期|50-57|共8页
  • 作者

    Rutledge Steven A.; Chandrasekar V; Fuchs Brody; George Jim; Junyent Francesc; Kennedy Patrick; Dolan Brenda;

  • 作者单位

    Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA|Colorado State Univ, CSU CHILL Natl Radar Facil, Ft Collins, CO 80523 USA;

    Colorado State Univ, CSU CHILL Natl Radar Facil, Ft Collins, CO 80523 USA|Colorado State Univ, Dept Elect & Comp Engn, Ft Collins, CO 80523 USA;

    Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA;

    Colorado State Univ, CSU CHILL Natl Radar Facil, Ft Collins, CO 80523 USA;

    Colorado State Univ, CSU CHILL Natl Radar Facil, Ft Collins, CO 80523 USA;

    Colorado State Univ, CSU CHILL Natl Radar Facil, Ft Collins, CO 80523 USA;

    Colorado State Univ, Radar Meteorol Grp, Ft Collins, CO 80523 USA;

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