TCCON data from Sodankylä (FI), Release GGG2020.R0

The Total Carbon Column Observing Network (TCCON) is a network of ground-based Fourier Transform Spectrometers that record direct solar absorption spectra of the atmosphere in the near-infrared. From these spectra, accurate and precise column-averaged abundances of atmospheric constituents including CO2, CH4, N2O, HF, CO, H2O, and HDO, are retrieved. This is the GGG2020 data release of observations from the TCCON station at Sodankylä, Finland总碳柱观测网络（Total Carbon Column Observing Network，TCCON）是一个由地基傅里叶变换光谱仪组成的观测网络，此类仪器可记录近红外波段内大气的直接太阳吸收光谱。通过上述光谱数据，可反演获得包括二氧化碳（CO₂）、甲烷（CH₄）、一氧化二氮（N₂O）、氟化氢（HF）、一氧化碳（CO）、水蒸气（H₂O）与氘代水（HDO）在内的大气组分的柱平均丰度，且反演结果兼具高精度与高准确性。本数据集为芬兰索丹屈莱（Sodankylä）TCCON观测站观测数据的GGG2020版发布数据。