DOI: 10.20783/dias.597
title: CReSS Daily Simulation (around Japan 2km mesh)
title: CReSS_JPN20DK

description: The Laboratory of Meteorology, Institute for Space-Earth Environmental Research, Nagoya University, has been performing daily high-resolution weather simulations using the cloud resolving storm model CReSS (Cloud Resolving Storm Simulator). To demonstrate how well the current model can simulate real-world weather, the results of the simulations are mainly intended for experts. This dataset is the original data from that simulation, shown on the Web page "CReSS Daily Simulation". The area of calcuration is about 2300km by 2800km, surrounding Japan, with about 2km grid size. The map projection method is the Lambert Conformal Conic. The actual simulations are performed prior to the actual time, but due to the limitations of the Meteorological Service Act, only results prior to the current time are made available to the public. If you wish to use this data to conduct weather forecasting services in Japan, you must follow the appropriate procedures in accordance with the Meteorological Service Act. Please contact the Japan Meteorological Agency for more information on the law. The simulations are calculated once a day for up to 36 hours ahead. This dataset contains the following 17 three dimensional variables and 30 two dimensional variables, the former being output every three hours and the latter every hour. 3D Variables: u : x components of velocity [m/s] v : y components of velocity [m/s] w : z components of velocity [m/s] p : pressure [Pa] pt : potential temperature [K] qv : water vapor mixing ratio [kg/kg] qc : cloud water mixing ratio [kg/kg] qr : rain water mixing ratio [kg/kg] qi : cloud ice mixing ratio [kg/kg] qs : snow mixing ratio [kg/kg] qg : graupel mixing ratio [kg/kg] nci : cloud ice concentrations [1/kg] ncs : snow concentrations [1/kg] ncg : graupel concentrations [1/kg] qt : tracer mixing ratio tke : turbulent kinetic energy [J/kg] zph : z physical coordinates [m] 2D variables: us : x components of velocity at an altitude of 10m [m/s] vs : y components of velocity at an altitude of 10m [m/s] ps : pressure at an altitude of 1.5m [Pa] pts : potential temperature at an altitude of 1.5m [K] qvs : water vapor mixing ratio at an altitude of 1.5m [kg/kg] tgs : soil and sea surface temperature [K] hs : sensible heat over surface [W/m^2] le : latent heat over surface [W/m^2] rgd : global solar radiation [W/m^2] rsd : net downward short wave radiation [W/m^2] rld : downward long wave radiation [W/m^2] rlu : upward long wave radiation [W/m^2] cdl : cloud cover in lower layer cdm : cloud cover in middle layer cdh : cloud cover in upper layer cdave : averaged cloud cover usflx : surface momentum flux for x components of velocity [N/m^2] vsflx : surface momentum flux for y components of velocity [N/m^2] ptsflx : surface heat flux [(kg K)/(m^2 s)] qvsflx : surface moisture flux [kg/(m^2 s)] pcr : cloud water fall rate [m/s] pca : accumulated cloud water fall [m] prr : rain fall rate [m/s] pra : accumulated rain fall [m] pir : cloud ice fall rate [m/s] pia : accumulated cloud ice fall [m] psr : snow fall rate [m/s] psa : accumulated snow fall [m] pgr : graupel fall rate [m/s] pga : accumulated graupel fall [m]