A diffuse radiation dataset in Qianyanzhou Ecological Research Station (2012–2019)

Diffuse radiation is a main component of solar radiation, which dynamic change has an important effect on ecosystem carbon cycle. In 2012, an SPN1 pyranometer (Delta-T Devices Ltd., UK) was installed in the comprehensive meteorological observation field in Qianyanzhou Ecological Research Station to measure the diffuse radiation. For the missing diffuse radiation data, the data measured by the CMP11 pyranometer (Kipp & Zonen, Netherlands) attached with a shadow ring were replaced. If the diffuse radiation data of CMP11 pyranometer were also missing, the Reindl model which has been verified in Qianyanzhou area was used for calculation. The accuracy of this dataset is 30 minutes, and the time range is from 2012 to 2019, so as to provide basic data for related ecological, environmental and meteorological studies.

漫射辐射是太阳辐射的主要组成部分，其动态变化对生态系统碳循环具有重要影响。2012年，于钱烟洲生态研究站的综合气象观测场安装了SPN1型辐射计（Delta-T Devices Ltd.，英国）以测量漫射辐射。对于缺失的漫射辐射数据，采用配备阴影环的CMP11型辐射计（Kipp & Zonen，荷兰）所测得的数据进行补充。若CMP11型辐射计的漫射辐射数据亦存在缺失，则采用已在钱烟洲地区验证过的Reindl模型进行计算。本数据集的精度为30分钟，时间跨度为2012年至2019年，旨在为相关的生态、环境和气象研究提供基础数据。