PAR005 Optical disdrometer data at De Zweth

<strong>Description:</strong> In-situ measurements of raindrop size distributions, fall velocities, drop number concentrations and surface rain rates recorded by an OTT Parsivel2 disdrometer named "PAR005" in De Zweth, The Netherlands. Situated approximately 7 km to the North West of Rotterdam, and 4 km South East of Delft campus, Zweth is a small town along the Schie river, at the intersection of the historical areas of Delfland and Schieland. The same site also features a micro-rain radar "MRR004_DeZweth" (since February 2022), replaced by "MRR006_DeZweth" (since August 2022) and a Davis weather station "Davis003_DeZweth" (since May 2023). All sensors are placed on top of an air quality monitoring container belonging to TNO, at a height of approx. 4 meters.<br><strong>Format:</strong> Each NetCDF file covers a full month of observations. The temporal resolution is 1 minute. Data are provided "as is", without any post-processing. The NetCDF files contain all relevant information about all the variables, attributes and units. The global attributes of the NetCDF files contain important information about the type of sensor, logging software, project contributors and history of the dataset. If a monthly file is missing, no data are available for this month.<br><strong>Relevance:</strong> Optical disdrometer data are useful for studying the type, dynamics and microphysics of precipitation from the perspective of a fixed observer on the ground. The data can be used to help calibrate weather radars, improve quantitative precipitation estimates, calculate the absorption/attenuation/propagation of electromagnetic signals through the atmosphere, and quantify important physical quantities such as liquid water content, rain amount, intensity and kinetic energy.<br><strong>Note:</strong> This dataset is updated approximately every 3 months. Please reach out to the authors if you wish to access the most recent data.<br><strong>Known issues:</strong>Due to a sensor malfunction, the recorded temperature values between November 2023 and December 15, 2024 cannot be trusted.

<strong>描述：</strong> 本数据集包含荷兰代兹韦特（De Zweth）站点由编号为“PAR005”的OTT Parsivel2雨滴谱仪（disdrometer）采集的雨滴尺寸分布、下落末速度、雨滴数浓度及地面降雨率原位测量数据。代兹韦特是沿斯希河（Schie river）分布的小镇，地处鹿特丹西北约7公里、代尔夫特校区东南4公里处，位于代尔夫兰（Delfland）与希兰（Schieland）历史区域的交汇地带。该站点同时部署了微雨雷达（micro-rain radar）“MRR004_DeZweth”（2022年2月起启用，2022年8月后由“MRR006_DeZweth”接替）以及Davis气象站“Davis003_DeZweth”（2023年5月起启用）。所有传感器均安装于TNO所属的空气质量监测集装箱顶部，安装高度约4米。
<strong>数据格式：</strong> 每份NetCDF文件涵盖完整一个月的观测数据，时间分辨率为1分钟。数据按现状提供，未经过任何后处理。NetCDF文件包含所有相关变量、属性及单位信息，其全局属性中存储了传感器类型、日志软件、项目贡献者及数据集历史等重要信息。若对应月份的NetCDF文件缺失，则该月无可用观测数据。
<strong>数据价值：</strong> 光学雨滴谱仪（optical disdrometer）观测数据可从地面固定观测者的视角出发，用于研究降水的类型、动力学特征与微物理特性。该数据可用于辅助气象雷达校准、优化定量降水估算、计算电磁信号在大气中的吸收、衰减与传播过程，以及量化液态水含量、降雨量、降雨强度和动能等关键物理量。
<strong>说明：</strong> 本数据集约每3个月更新一次。如需获取最新数据，请联系数据集作者。
<strong>已知问题：</strong> 受传感器故障影响，2023年11月至2024年12月15日期间记录的温度数据不可信。