Το LRSU είναι μέλος του Εθνικού Οδικού Χάρτη ESFRI (European Strategy Forun on Research Infrastructure) της Ερευνητικής Υποδομής Παγκόσμιας Εμβέλειας, ως Συνεργαζόμενος Εταίρος του ACTRIS 2
Ο Καθ. Α. Παπαγιάννης εκλέχθηκε στην προεδρία της ICLAS (International Commission for Laser Atmospheric Studies) για την περίοδο 2015 - 2021.
Το νέο site του LRSU είναι διαθέσιμο.
| Title | Application and Testing of the Extended-Kalman-Filtering Technique for Determining the Planetary Boundary-Layer Height over Athens, Greece |
| Publication Type | Journal Article |
| Year of Publication | 2020 |
| Authors | Kokkalis, P, Alexiou, D, Papayannis, A, Rocadenbosch, F, Soupiona, O, Raptis, P-I, Mylonaki, M, Tzanis, CG, Christodoulakis, J |
| Volume | 176 |
| Issue | 1 |
| Pagination | 125 - 147 |
| Date Published | 2020/07/01 |
| ISBN Number | 1573-1472 |
| Abstract | We investigate the temporal evolution of the planetary boundary-layer (PBL) height over the basin of Athens, Greece, during a 6-year period (2011–2016), using data from a Raman lidar system. The range-corrected lidar signals are selected around local noon (1200 UTC) and midnight (0000 UTC), for a total of 332 cases: 165 days and 167 nights. In this dataset, the extended-Kalman filtering technique is applied and tested for the determination of the PBL height. Several well-established techniques for the PBL height estimation based on lidar data are also tested for a total of 35 cases. The lidar-derived PBL heights are compared to those derived from radiosonde data. The mean PBL height over Athens is found to be 1617 ± 324 m at 1200 UTC and 892 ± 130 m at 0000 UTC for the period examined, while the mean PBL-height growth rate is found to be 170 ± 64 m h−1 and 90 ± 17 m h−1 during daytime and night-time, respectively. |
| URL | https://doi.org/10.1007/s10546-020-00514-z |
| Short Title | Boundary-Layer Meteorology |