Seismological Data Processing in the Japan Meteorological Agency

Evaluation of Seasonal Cycles of Hydrological Processes in Japan Meteorological Agency Land Data Analysis

The present study evaluates the reproducibility of the climatological seasonal cycles of three hydrological variables, soil moisture, river discharge and terrestrial water storage in the Japan Meteorological Agency Land Data Analysis (LDA) by means of a system consisting of the LDA and a global river-routing model (LDAG). LDAG satisfactorily reproduces the seasonal cycle of soil moisture at mos...

Outline of the Typhoon Ensemble Prediction System at the Japan Meteorological Agency

The Japan Meteorological Agency (JMA) began operation of a new Ensemble Prediction System (EPS) known as the Typhoon EPS (TEPS) in February 2008. TEPS has been designed to improve track forecast targeting for tropical cyclones (TCs) in the Regional Specialized Meteorological Center (RSMC) Tokyo Typhoon Center’s area of responsibility within the framework of WMO. It runs up to four times a day w...

Outline of the High Resolution Global Model at the Japan Meteorological Agency

The Japan Meteorological Agency (JMA) upgraded the resolution of the Global Spectral Model (GSM) from TL319L40 to TL959L60 on 21 November 2007, when the Typhoon Model retired from operational use. Since then, tropical cyclone (TC) track and intensity forecasts have been supported by GSM only. GSM provides numerical weather prediction (NWP) products four times a day for all TCs existing globally...

Quantitative Precipitation Estimation and Quantitative Precipitation Forecasting by the Japan Meteorological Agency

An Advanced System for Monitoring Geomagnetic Environments by the Japan Meteorological Agency

The Japan Meteorological Agency (JMA) has developed an advanced system to monitor geomagnetic environments consisting of magnetometers and monitoring cameras. The new system calculates the magnetic moments and positions of sources of artificial disturbances and then visually identifies the sources. The intensity and location of a source of artificial disturbance are calculated assuming the sour...