Abstract
Weather Research and Forecasting model with solar extensions (WRF-Solar) uses the Fast All-sky Radiation Model for Solar applications (FARMS) to predict solar radiation from the forecasted atmospheric gases, aerosols, and clouds. The Beer-Bouguer-Lambert law utilized by FARMS as well as other radiative transfer models assumes Direct Normal Irradiance (DNI) is a narrow beam only covering the sun disk. This assumption is interpreted differently in solar observations by pyrheliometers where the circumsolar diffuse radiation is accounted. This study precisely computes circumsolar diffuse radiation in all-sky conditions using a radiative transfer model based on a parameterization of precomputed cloud transmittance and reflectance. The model is implemented in WRF-Solar to provide day-ahead DNI forecast in the north America. The computation and forecasting of DNI is compared with the Beer-Bouguer-Lambert law to understand the impact of circumsolar diffuse radiation.
Original language | American English |
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Number of pages | 6 |
DOIs | |
State | Published - 2023 |
Event | SolarPACES: Solar Power & Chemical Energy Systems: 27th International Conference on Concentrating Solar Power and Chemical Energy Systems - Online Duration: 27 Sep 2021 → 1 Oct 2021 |
Conference
Conference | SolarPACES: Solar Power & Chemical Energy Systems: 27th International Conference on Concentrating Solar Power and Chemical Energy Systems |
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City | Online |
Period | 27/09/21 → 1/10/21 |
NREL Publication Number
- NREL/CP-5D00-88471
Keywords
- aerosols
- atmospheric optical phenomena
- atmospheric radiation
- brain machine interfaces
- diffuse radiation
- optical properties
- radiative transfer