Validation of the WRF model for PWV forecasting at the Roque de los Muchachos Observatory

[摘要] The atmospheric Precipitable Water Vapour content (PWV) is crucial for astronomical observations in the infrared. In this work, we have validated the Weather Research and Forecasting (WRF) mesoscale numerical model as an operational tool for PWV at Roque de los Muchachos astronomical Observatory (ORM). We used radiosonde data obtained directly at the Observatory and at the sea level. An excellent agreement between PWV model forecasts and observations was found at both verification points with a correlation above 0.9.

[发布机构] Instituto de Astrofísica de Canarias, La Laguna; E-38200, Spain^1;Dept. Astrofísica, Universidad de la Laguna, La Laguna; E-38200, Spain^2;Dept. Astronomía y Meteorología, Universitat de Barcelona, Barcelona, Spain^3;Dept. Astrophysique, Universite de Nice-Sophia Antipolis, Nice, France^4

[效力级别] 地球科学

[关键词] Astronomical observation;Astronomical observatories;Mesoscale numerical model;Operational tools;Precipitable water vapour;Radiosonde datas;Verification points;Weather research and forecasting