T/CIDA 0019-2023 Active

Scope: This standard specifies the principles of setting up a vorticity monitoring system for evapotranspiration in farmland, as well as the methods and requirements for data collection and data quality control. This standard applies to the monitoring of evapotranspiration in farmland. Main technical content: Foreword 1 Scope 2 Normative reference documents 3 Terms and definitions 4 General provisions 5 Setting up the system 5.1 Requirements for selecting the site for installing the vorticity-related system 5.2 Installation of the observation tower body 5.3 Installation of the observation tower probe 6 Data collection 6.1 Collection cycle 6.2 Collection frequency 7 Data quality control 7.1 Data screening 7.2 Data correction 7.3 Removing flux data 7.4 Data interpolation 7.5 Data quality control 8 Maintenance and correction 8.1 Maintenance 8.2 Correction Appendix A (Normative) Method of calculating secondary coordinate rotation, frequency correction, virtual temperature correction, and air density correction A.1 Calculation of the secondary coordinate rotation method A.2 Calculation of the frequency correction method A.3 Calculation of virtual temperature correction A.4 Calculation of the air density change correction method