ABSTRACT The method to predict precipitation for couple of hours in the future, developed at FMI,... more ABSTRACT The method to predict precipitation for couple of hours in the future, developed at FMI, applies modified correlation-based atmospheric motion vector (AMV) system provided by EUMETSAT. PseudoCAPPI reflectivity fields with interval of 5 minutes are used as the input to the AMV system. That provides a smooth vector field from which a trajectory field is calculated. Speed and direction inaccuracies along the trajectories gives us an “error ellipse” around each starting point of a trajectory. The reflectivities within the ellipse are then applied to calculate a set of forecast products for 0.5 4 hours from the initial time. The verification results show that some conventional quantities like POD and FAR are quite sensitive to the size of the precipitating area.
... Timo Sukuvaara1, Pertti Nurmi1, Daria Stepanova1, Sami Suopajärvi1, Marjo Hippi1, Pekka Elora... more ... Timo Sukuvaara1, Pertti Nurmi1, Daria Stepanova1, Sami Suopajärvi1, Marjo Hippi1, Pekka Eloranta2, Esa Suutari3, and Kimmo Ylisiurunen4 ... between the TSBS and the MEU, ordinary communication via a wireless base station without a need to hand off the con-nection but ...
The European Union (EU) places high emphasis and lots of efforts to tackle transport related issu... more The European Union (EU) places high emphasis and lots of efforts to tackle transport related issues like traffic jams, energy consumption, carbon dioxide (CO2) emissions and, most importantly, how to reduce the number of 40 000 casualties on European roads, annually. There are numerous intelligent transportation system (ITS) approaches and projects contributing to solutions to make transport safer and more efficient and sustainable. The European Union has funded various projects in this area in the past and initiated in 2011 so-called Field Operational Test (FOT) projects, the FOTsis (Field Operational Test on safe, intelligent and sustainable road operation; www.fotsis.com) being one of them. FOTsis is a large-scale field testing of the road infrastructure management systems, where new weather-driven applications and services will have a central role in the eventual service palette. The weather applications are being developed by the Finnish Meteorological Institute, the only meteorological partner in the FOTsis consortium.
ABSTRACT The method to predict precipitation for couple of hours in the future, developed at FMI,... more ABSTRACT The method to predict precipitation for couple of hours in the future, developed at FMI, applies modified correlation-based atmospheric motion vector (AMV) system provided by EUMETSAT. PseudoCAPPI reflectivity fields with interval of 5 minutes are used as the input to the AMV system. That provides a smooth vector field from which a trajectory field is calculated. Speed and direction inaccuracies along the trajectories gives us an “error ellipse” around each starting point of a trajectory. The reflectivities within the ellipse are then applied to calculate a set of forecast products for 0.5 4 hours from the initial time. The verification results show that some conventional quantities like POD and FAR are quite sensitive to the size of the precipitating area.
... Timo Sukuvaara1, Pertti Nurmi1, Daria Stepanova1, Sami Suopajärvi1, Marjo Hippi1, Pekka Elora... more ... Timo Sukuvaara1, Pertti Nurmi1, Daria Stepanova1, Sami Suopajärvi1, Marjo Hippi1, Pekka Eloranta2, Esa Suutari3, and Kimmo Ylisiurunen4 ... between the TSBS and the MEU, ordinary communication via a wireless base station without a need to hand off the con-nection but ...
The European Union (EU) places high emphasis and lots of efforts to tackle transport related issu... more The European Union (EU) places high emphasis and lots of efforts to tackle transport related issues like traffic jams, energy consumption, carbon dioxide (CO2) emissions and, most importantly, how to reduce the number of 40 000 casualties on European roads, annually. There are numerous intelligent transportation system (ITS) approaches and projects contributing to solutions to make transport safer and more efficient and sustainable. The European Union has funded various projects in this area in the past and initiated in 2011 so-called Field Operational Test (FOT) projects, the FOTsis (Field Operational Test on safe, intelligent and sustainable road operation; www.fotsis.com) being one of them. FOTsis is a large-scale field testing of the road infrastructure management systems, where new weather-driven applications and services will have a central role in the eventual service palette. The weather applications are being developed by the Finnish Meteorological Institute, the only meteorological partner in the FOTsis consortium.
Uploads
Papers by pertti nurmi