TY - GEN
T1 - Optimal interpolation of satellite derived irradiance and ground data
AU - Lorenzo, Antonio T.
AU - Morzfeld, Matthias
AU - Holmgren, William F.
AU - Cronin, Alexander D
N1 - Publisher Copyright: © 2016 IEEE.
PY - 2016/11/18
Y1 - 2016/11/18
N2 - We describe how Bayesian data assimilation can be used to improve nowcasts of irradiance over small, city-scale, spatial areas. Specifically, we use optimal interpolation (OI) to improve satellite derived estimates of global horizontal irradiance (GHI) using ground truth data that was collected sparsely over Tucson, AZ. Our results show that the local data indeed improves the satellite derived estimates of GHI. A key to success with OI in this context is to prescribe correlations based on cloudiness, rather than spatially. OI can be used with a variety of data, e.g., rooftop photovoltaic production data or irradiance data, as well as with several different satellite derived irradiance models.
AB - We describe how Bayesian data assimilation can be used to improve nowcasts of irradiance over small, city-scale, spatial areas. Specifically, we use optimal interpolation (OI) to improve satellite derived estimates of global horizontal irradiance (GHI) using ground truth data that was collected sparsely over Tucson, AZ. Our results show that the local data indeed improves the satellite derived estimates of GHI. A key to success with OI in this context is to prescribe correlations based on cloudiness, rather than spatially. OI can be used with a variety of data, e.g., rooftop photovoltaic production data or irradiance data, as well as with several different satellite derived irradiance models.
KW - data assimilation
KW - optimal interpolation
KW - remote sensing
KW - solar irradiance
UR - http://www.scopus.com/inward/record.url?scp=85003441315&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85003441315&partnerID=8YFLogxK
U2 - 10.1109/PVSC.2016.7749596
DO - 10.1109/PVSC.2016.7749596
M3 - Conference contribution
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
SP - 291
EP - 296
BT - 2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 43rd IEEE Photovoltaic Specialists Conference, PVSC 2016
Y2 - 5 June 2016 through 10 June 2016
ER -