DCMEX: cloud images from the NCAS Camera 12 from the New Mexico field campaign 2022

This dataset contains cloud images from the NCAS Camera 12, one of two identical cameras (designated as ncas-cam-11 and ncas-cam-12), captured at various sites around the Magdalena Mountains, New Mexico, USA, as part of the Deep Convective Microphysics Experiment (DCMEX). DCMEX examined the formation and development of clouds over mountains during July and August 2022.

These cameras were designed to take simultaneous images of the same object while placed a distance apart to create a stereo image, but this was not always possible; on some days only one camera was used or the two cameras were deployed in separate locations.

The images from this camera were taken during the duration of the DCMEX campaign of clouds from a range of sites. These are accompanied by similar images from a sibling camera (see connected dataset). Where the two cameras were operated at the same site they were synchronised in terms of camera settings (exposure, etc) and camera pointing directions to facilitate the onward use of images as stereoscopic imagery. For those latter instances files have been marked with stereo-a or stereo-b within the filename to denote where the images form the left of right image for such images. Other images do not contain these additional filename fields to denote when the cameras were used in stand-along mode. Note, due to the nature of coordinating images between the two cameras one was designated as the primary camera from which the settings were then conveyed to the secondary camera by the coordinating software. As a result exact image synchronisation wasn't possible and thus the secondary camera image may have a timestamp that is a second or so later.

本数据集收录了来自 NCAS Camera 12 的云层图像，该相机（编号为 ncas-cam-11 和 ncas-cam-12）为两台完全相同的相机之一，于美国新墨西哥州的马格达莱纳山脉的多个地点捕捉，作为深度对流微物理实验（DCMEX）的一部分。DCMEX于 2022 年 7 月至 8 月期间研究了山脉上云的形成与发展过程。这些相机的设计初衷是在一定距离处同时捕捉同一物体的图像，以创建立体图像，但并非总能够实现；在某些日子里，仅使用一台相机，或两台相机分别部署在不同的地点。本相机所摄图像涵盖了 DCMEX 实验期间从多个地点捕捉的云层图像。这些图像辅以来自同系列相机的相似图像（参见相关数据集）。当两台相机在相同地点运行时，它们在相机设置（曝光等）和相机指向方向上保持同步，以便后续图像作为立体图像的使用。对于这些情况，文件名中标记了 stereo-a 或 stereo-b，以表示图像是立体图像中的左图或右图。其他图像不包含这些额外的文件名字段，以指示相机在独立模式下的使用。请注意，由于在两台相机之间协调图像的性质，其中一台被指定为主要的相机，其设置随后由协调软件传达至副相机。因此，精确的图像同步无法实现，故副相机的图像时间戳可能比主相机晚一秒或更久。