CAJ | 학술논문

风蚀起沙是开展沙尘气溶胶和沙尘天气研究的基本问题.从风蚀起沙的机制、粒子运动形态、起沙条件、沙尘通量等几个方面,回顾了我国在风蚀起沙方面的主要研究结果,对开展这方面研究的难点问题开展讨论.介绍了计算临界摩擦速度的不同方法,并对不同研究者在不同地点观测到的临界摩擦速度进行比较.针对提高观测精度和观测研究结果的可比较性问题,提出了三点建议:一是要建立比较详细的地理、地貌和土壤信息系统;二是要利用卫星观测的优势,建立地面对比观测系统,标校卫星遥感结果;三是要规范观测方法和流程,充分利用业务化的观测资料,提高观测的可对比性.
풍식기사시개전사진기용효화사진천기연구적기본문제.종풍식기사적궤제、입자운동형태、기사조건、사진통량등궤개방면,회고료아국재풍식기사방면적주요연구결과,대개전저방면연구적난점문제개전토론.개소료계산림계마찰속도적불동방법,병대불동연구자재불동지점관측도적림계마찰속도진행비교.침대제고관측정도화관측연구결과적가비교성문제,제출료삼점건의:일시요건립비교상세적지리、지모화토양신식계통;이시요이용위성관측적우세,건입지면대비관측계통,표교위성요감결과;삼시요규범관측방법화류정,충분이용업무화적관측자료,제고관측적가대비성.
Wind-eroded dust is an essential issue in studying dust aerosol and dust weather. From several aspects, such as the mechanism of wind-eroded dust, configuration of particle motion, condition for dust emission, and dust flux, the major results of the researches on wind-eroded dust in China have been reviewed and the difficult points and issues have been discussed. Different methods for calculating the threshold of critical friction velocity and comparing the critical friction velocity of the observation are described from different researchers in different locations. Finally, three suggestions have been presented on how to improve the precision of research results based on observations and the comparability of different research results. First, to establish a more detailed geography, topography and soil information system. Second, to make use of the advantages of satellite observations, and to set up the ground-based observing systems for the comparison and calibration of satellite remote sensing results. The third is to standardize the observation methods and processes to fully utilize the operational observational data to improve the comparability of observation.