Trajectory

Trajectory

METEX – An Online Trajectory Application
The Meteorological Data Explorer (METEX), developed at the Centre for Global Environmental Research (CGER), includes programs for online calculation of air trajectory and visualization of meteorological fields. It converts datasets from European Center for Medium-Range Weather Forecast (ECMWF), National Centers for Environmental Prediction (NCEP), and Japan Meteorological Agency (JMA) in various binary formats to a standard format to give users the option of using different meteorological data. Registered users can use the web-based batch calculation service to obtain a large number of trajectory results with one submission.
Trajectory Archive
The database includes pre-calculated, 10-day back trajectories for Hateruma and Ochiishi stations of CGER. Three meteorological data sets are used for the calculation: Operational data from the European Center for Medium-Range Weather Forecast (ECMWF), reanalysis data from the National Centers for Environmental Prediction (NCEP), and Grid point Values (GPV) from Japan Meteorological Agency (JMA).
  • [Calculation Period] 1993/01/01 - Present
  • [Start Location of Calculation] Hateruma (Latitude : 24.0608N, Longitude : 123.8093E) 500 m above the surface, Cape Ochiishi (Latitude : 43.1602N, Longitude : 145.4973E) 500 m above the surface
  • [Output interval] 1 hour
Trajectory Animation
This application animates the CO2 variations observed at Hateruma and Ochiishi stations along with 3-day back trajectories that are initialized at the same location and observation time.
  • [Calculation Period] Same as the opened observation data
  • [Start Location of Calculation] Hateruma (Latitude : 24.0608N, Longitude : 123.8093E) 500 m above the surface, Cape Ochiishi (Latitude : 43.1602N, Longitude : 145.4973E) 500 m above the surface