94 GHz cloud radar simulation data using NICAM and Joint simulator for evaluation of ground-based radar and application to the EarthCARE satellite

Overview

These data are snapshots of simulated radar reflectivity and Doppler velocity from the 94 GHz Cloud Profiling Radar (CPR). The simulations were conducted using the Joint-Simulator for Satellite Sensors (Joint-Simulator; Hashino et al., 2013; Roh et al., 2020), and the input data was from the Nonhydorstatic Icosahedral Atmospheric Model (NICAM; Satoh et al., 2014). To focus on the region of interest with high resolution, NICAM transformed the grid (the stretched NICAM; Tomita 2008a) using a G-Level 10 (GL10) horizontal resolution with a stretch-factor of 100 (the ratio between the maximum and minimum grid intervals), where the minimum grid interval is approximately 800 m. We simulated two cases of rain events in September 2019. The first case (case 1) is the tropical cyclone (TC) Faxai. The second is a weak frontal system (case 2). In case 1 the integration and analysis time was from 00 UTC on 8 September to 00 UTC on 9 September 2019. In case 2 the integration and analysis time was from 00 UTC on 20 September to 00 UTC on 21 September 2019. We evaluated the data using the gournd observation and introduced a methodology for using the CPR data for model evaluations. We simulated Doppler velocity of the EarthCARE CPR. 

Directory structure and file format

There are two files.

For Ground_CPR, there are simuation data based on the ground.

For Satellite_CPR, there are simulation data bsed on instrument setting of EarthCARE CPR.

(Note the order of the array of Satelltie_CPR is different from Ground_CPR.)

The files are in the NetCDF4 format.

The files have the following name format.

AAA_XXX_TIME_EASE.nc

AAA: Ecare (CPR simulation withot random errors), Mode(CPR simulation with randome errors based on window observaion mode)

XXX: NICAM Single Moment sheme 6 category (NSW6) and NICAM Dobule Moment scheme 6 category(NDW6)

TIME: The simulation time

EASE:  EarthCARE Active SEnsor simulator (EASE)

These data are only one snapshot data and limited variables becuase of file size issue.

If you have any questions or want additional data, please contact the email below

Contacts:

Woosub Roh  ([e-mail])