Holographic Detector for Clouds (HOLODEC) IOP1. Version 1.0

This dataset contains measurements of cloud particle size distributions collected during the ACE-ENA (IOP1) project using an airborne holographic instrument mounted on the DOE G1. The HOLODEC-II is a second-generation version of a holographic detecter designed to determine the size, two-dimensional shape, and three-dimensional position of hydrometeors via digital in-line holography. Advantages vs other hydrometeor detectors are that the sample volume is not size dependent, relative positions of hydrometeors in the sample volume can be determined in three dimensions, and effects produced by shattering from the aperture edges can be identified and eliminated. Automated analysis programs have been developed to process the holograms collected and produce size distributions. HOLODEC-II has sufficient resolution to determine the sizes and locations of cloud droplets as well as ice crystals. A separate dataset (562.001) has been created for IOP2. Please see the link below to access the ACE-ENA IOP2 dataset page.本数据集收录了ACE-ENA（IOP1）项目期间，搭载于美国能源部（Department of Energy, DOE）G1航空器的机载全息探测仪器所获取的云粒子粒径分布测量数据。HOLODEC-II是第二代全息探测器，通过数字同轴全息术（digital in-line holography）可测定水凝物的粒径、二维形态及三维空间位置。相较于其他水凝物探测设备，该探测器的优势在于：采样体积不受粒子粒径限制，可确定采样体积内水凝物的三维相对位置，且能够识别并消除孔径边缘碎裂引发的干扰效应。目前已开发自动化分析程序，用于处理采集到的全息图像并生成粒子粒径分布数据。HOLODEC-II具备足够高的分辨率，可同时获取云滴与冰晶的粒径及空间位置信息。针对IOP2阶段已单独构建编号为562.001的数据集，请点击下方链接访问ACE-ENA IOP2数据集页面。

搜集汇总

背景与挑战

背景概述

该数据集包含在ACE-ENA (IOP1)项目期间使用机载HOLODEC-II全息仪器收集的云粒子尺寸分布测量数据。HOLODEC-II通过数字在线全息技术确定水凝物的尺寸、形状和三维位置，优势包括样本体积独立于尺寸、三维定位能力以及消除破碎效应，自动化程序处理全息图以生成分布，分辨率足以分析云滴和冰晶。