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Footprint at Hateruma and Ochiishi stations

This page shows calculated footprints of 10-day backward trajectories when 10,000 Lagrangian particles are released from Hateruma and Cape Ochiishi, which are two of the global environment monitoring stations of the Center for Global Environmental Research (CGER), Earth System Division (ESD), National Institute for Environmental Studies (NIES).

For more information about the trajectory model, please refer to here.

Calculation period Hateruma: 1990/01/01 - 2020/08/31
Cape Ochiishi: 2005/12/31 - 2013/01/01
Calculations using the latest meteorological data are available in the "Calculation". *User registration is required.
Start location of calculation Hateruma (Latitude: 24.0608N, Longitude: 123.8093E)
Cape Ochiishi (Latitude: 43.1602N, Longitude: 145.4973E)
Trajectory length 10 days
Trajectory model 3D-wind (kinematic) model
Time integration direction Backward
Calculation parameter Mean residence time of Lagrangian particles in 1°×1° grid cells at each of the following altitudes
  • All heights
  • From surface to 500m
  • From surface to PBL (planetary boundary layer altitude)

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Calculation period: (Local Time)

10-day backward trajectories at Hateruma/Ochiishi