NREL 30-Second ASI Timeseries April 4-21, 2019

All Sky Imagers or Total Sky Imagers (ASIs or TSIs) have substantial promise as scalable sensors for solar resource estimation and forecasting. ASI images are high-resolution fisheye images containing large amounts of sky content. This dataset contains ASI images taken at a 30-second time resolution, over a period of 17 days during April 2019 using an all-sky imager model ASI-16 by EKO Instrument. These images were used to test an automated clear sky image selection algorithm, however they can be used for a variety of other purposes including cloud position forecasting or solar irradiance estimation.

全天域成像仪（All Sky Imagers，简称 ASIs 或 TSIs）在太阳能资源估算与预测领域展现出巨大的潜力，作为可扩展的传感设备。这些 ASI 成像仪捕捉的是高分辨率的鱼眼图像，其中包含大量的天空内容。本数据集收录了在 2019 年 4 月期间，使用 EKO Instrument 生产的 ASI-16 全天域成像仪模型，以 30 秒的时间分辨率，连续 17 天所拍摄的全天域图像。这些图像原本用于测试自动晴空图像选择算法，然而，它们还可应用于多种其他目的，例如云位置预测或太阳辐照度估算。