藏东南高山环境综合观测研究站降雪粒子谱特征观测数据集(2022年1-3月)
收藏资源简介:
在二次科考项目和国家自然科学基金的依托下,在藏东南高山环境综合观测研究站架设了二维视频雨滴谱仪(2DVD),对降雪微物理特征进行观测。数据观测日期为2022年1月1日至3月15日。通过与藏东南站的称重式雨量筒的观测数据进行对比,结果显示2DVD数据观测质量良好。基本观测要素为数浓度分布N(D),单位为mm-1m-3。时间分辨率为1分钟。在未来,可以通过粒子谱信息反演降雪量等,为天气气候模型中降雪的估算提供了良好的观测基础。
Supported by the Second Tibetan Plateau Scientific Expedition and Research (STEP) Program and the National Natural Science Foundation of China, a two-dimensional video disdrometer (2DVD) was installed at the Southeast Tibet Alpine Environment Integrated Observation and Research Station to observe the microphysical characteristics of snowfall. The observation period spanned from January 1 to March 15, 2022. By comparing with the observation data from the weighing rain gauge at the same station, the results demonstrate that the 2DVD observation data is of good quality. The basic observational element is the number concentration distribution N(D), with the unit of mm⁻¹·m⁻³. The temporal resolution of the dataset is 1 minute. In future work, snowfall amount and other relevant parameters can be retrieved from the particle spectrum information, which provides a solid observational foundation for snowfall estimation in weather and climate models.




