高技术通讯2013，Vol.23Issue(5)：467-475,9.DOI:10.3772/j.issn.1002-0470.2013.05.005
基于ENVISAT ASAR影像的浙江沿海风能资源评估
Wind energy resource assessment based on ENVISAT ASAR images for the Zhejiang coastal waters
摘要
Abstract
The distribution of the offshore wind energy resources along the Zhejiang coast was researched based on the space-borne synthetic aperture radar (SAR) images.The data of long time sequence sea surface wind filed at the height of 10m along the Zhejiang coast were retrieved from 443 scenes of ENVISAT ASAR images obtained from 2005 to 2011.The wind direction data from the global reanalysis data of NCEP-NCAR were used as an input to the geophysical model function CMOD4 for SAR wind retrieval.Based on the wind field data,the wind energy resources were assessed accurately.The Weibull probability density function,parameters of scale (A) and shape (k),from the ENVISAT ASAR-derived wind speed,were respectively compared with that from the buoy observation wind speed,and the results showed that the relative error was 6.36％ forA,but 9.67％ for k.The characteristics of the Zhejiang coast wind resource distribution were researched.The results showed that the wind energy resources along the Zhejiang coast were rich.The sea surface annual average wind speed at the height of 10m was 5～10m/s,and the annual average wind power density reached 100 ～ 300W/m2 within 50km away from the coastline.The region richest in wind energy resources was located in south sea of the Zhejiang coast,and the largest wind power density reached 500W/m2.The seasonal feature of wind resource showed that the wind power was rich in autumn and winter,while it was relatively poor in spring and summer.关键词
ENVISAT ASAR/浙江沿海/海面风场/风能资源评估Key words
ENVISAT ASAR/ Zhejiang coast/ sea surface wind field/ wind energy resource assessment引用本文复制引用
常俊芳,黄韦艮,楼琇林,史爱琴,张华国..基于ENVISAT ASAR影像的浙江沿海风能资源评估[J].高技术通讯,2013,23(5):467-475,9.基金项目
863计划(2007AA092003),上海市科学技术委员会科研计划(08DZ1206304)和国家海洋局第二海洋研究所科研业务(JG1015,JT1008)资助项目. （2007AA092003）
