Surface and Meteorological Data at Medano Creek, Great Sand Dunes National Park, Colorado, USA on 15th April 2019 (NERC grant NE/R010196/1)

Wind and surface morphological data collected at Medano Creek on the 15th April 2019 to investigate protodune initiation. Surface morphological data: This is terrestrial laser scanned (TLS) data collected of the creek sand surface using three different co-located Leica TLS (C10, P20 and P50). The data is raw point cloud format in text columns of x, y and z coordinate data. It has been orientation into the same local coordinate system. Each data set uses the same coordinate system. Data can be viewed in any spatial software. Data is labelled using C10, P20 or P50, followed by the scan number. Scan times are indicated in a seperate file. Wind data were collected from a fixed point next to the TLS instruments using a Gill 3D sonic anemometer. The data is in csv file format with column titles and can be viewed in any text or database software.本数据集为2019年4月15日于梅达诺溪（Medano Creek）采集的风场与地表形态数据，用于研究原型沙丘（protodune）的初始形成过程。 地表形态数据：本数据集采用三台同站位的徕卡（Leica）地面激光扫描（terrestrial laser scanned, TLS）仪（C10、P20及P50）对溪滩沙面开展扫描采集。数据为原始点云格式，以文本列形式存储x、y、z坐标信息，已统一归至同一局部坐标系下，所有数据集采用相同坐标系，可通过任意空间可视化软件加载查看。数据以「C10/P20/P50+扫描编号」的形式进行命名标注，扫描时刻信息存储于单独的文件中。 风场数据：通过安装于TLS仪器旁固定点位的吉尔（Gill）三维超声风速仪采集所得，数据以CSV格式存储并带有列标题，可通过任意文本编辑或数据库软件读取查看。