A novel ChlF-free leaf spectra dataset and the PROSPECT-DP model code

A novel ChlF-free leaf spectra dataset (n = 849, species = 95) collected at three sites in Beijing, China during June and August 2023. Directional-directional reflectance and transmittance spectra with or without ChlF contributions were simultaneously measured using an ASD FieldSpec 3 spectrometer coupled with an FluoWat leaf clip. PROSPECT-DP, a coupled leaf optical properties model, in which a principal component analysis approach was applied on the training dataset to derive the spectral vectors for leaf spectra reconstruction, while the coefficients of spectral vectors were determined by leveraging the simulated leaf spectra derived from the PROSPECT-D model.本数据集为新型无叶绿素荧光（Chlorophyll fluorescence, ChlF）叶片光谱数据集，样本量为849，涵盖95个物种，于2023年6月至8月在中国北京的三个采样站点采集获取。研究人员采用搭载FluoWat叶片夹持器的ASD FieldSpec 3光谱仪，同步采集了带有叶绿素荧光贡献与无叶绿素荧光贡献的双向反射与双向透射光谱。PROSPECT-DP是一款耦合式叶片光学特性模型，该模型在训练数据集上应用主成分分析（Principal Component Analysis, PCA）方法提取用于叶片光谱重构的光谱向量，而光谱向量的系数则通过利用PROSPECT-D模型生成的模拟叶片光谱确定。