观测区 meaning in Chinese

area of coverage

First , in order to verify the correct of this retrieval month , by using the data of three - dimensional wind field , raininess field and temperature field that are output by mm5 numerical simulation , we climate the radial velocity field and echo intention field in the in - phase observation area of dual - doppler radar , then , on the base of the upwards retrieval theory and using the radial velocity field and echo intention field in the in - phase observation area of dual - doppler radar , we retrieve the atmospheric three - dimensional wind field
首先，为检验此种反演方法的可靠性，我们使用mm5数值模式输出的三维风场、雨强场、温度场等数据，分别模拟生成两部雷达同步观测区的径向速度场和回波强度场，然后根据以上的反演理论利用模拟的双多普勒天气雷达观测到的径向速度场和回波强度场反演出大气三维风场。