TY - JOUR
T1 - Resolution dependence of the diurnal cycle of precipitation simulated by a global cloud-system resolving model
AU - Yashiro, Hisashi
AU - Kajikawa, Yoshiyuki
AU - Miyamoto, Yoshiaki
AU - Yamaura, Tsuyoshi
AU - Yoshida, Ryuji
AU - Tomita, Hirofumi
N1 - Funding Information:
The authors are grateful to the editor of Scientific Online Letters on the Atmosphere, and two anonymous reviewers. The authors would like to thank Akira T. Noda at the Japan Agency for Marine–Earth Science and Technology (JAMSTEC) for providing us with the compiled data of TRIMM. We would like to express our thanks to Drs. S. Nishizawa, S.A. Adachi, and Y. Sato at RIKEN Advanced Institute for Computational Science (AICS). The simulations were performed using the K computer at the RIKEN AICS. This study was supported by Strategic Programs for Innovative Research (SPIRE) Field 3 (Projection of Planet Earth Variations for Mitigating Natural Disasters), which is promoted by the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan.
Funding Information:
The authors are grateful to the editor of Scientific Online Letters on the Atmosphere, and two anonymous reviewers. The authors would like to thank Akira T. Noda at the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) for providing us with the compiled data of TRIMM. We would like to express our thanks to Drs. S. Nishizawa, S.A. Adachi, and Y. Sato at RIKEN Advanced Institute for Computational Science (AICS). The simulations were performed using the K computer at the RIKEN AICS. This study was supported by Strategic Programs for Innovative Research (SPIRE) Field 3 (Projection of Planet Earth Variations for Mitigating Natural Disasters), which is promoted by the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan.
Publisher Copyright:
© 2017, the Meteorological Society of Japan.
PY - 2016
Y1 - 2016
N2 - Resolution dependence was found in the simulated diurnal precipitation cycle over land in the tropics. We conducted a series of grid refinement experiments of the atmosphere from 14 km to 0.87 km using a global high-resolution model without any convection parameterizations. In the high-resolution experiment, the peak of the cycle was earlier and precipitation at the peak was higher. The characteristics of the simulated diurnal precipitation cycle changed at a grid spacing of around 2-3 km. The precipitation started to increase in the morning in the high-resolution experiments, suggesting that small-scale moist convection became active in the late morning. In the lower-resolution experiments, convection and precipitation began in the late afternoon. As well as the enhancement of moisture transport from the boundary layer to the middle troposphere, the rapid formation of rain can also be attributed to the difference in diurnal precipitation cycles between lower and higher resolution experiments.
AB - Resolution dependence was found in the simulated diurnal precipitation cycle over land in the tropics. We conducted a series of grid refinement experiments of the atmosphere from 14 km to 0.87 km using a global high-resolution model without any convection parameterizations. In the high-resolution experiment, the peak of the cycle was earlier and precipitation at the peak was higher. The characteristics of the simulated diurnal precipitation cycle changed at a grid spacing of around 2-3 km. The precipitation started to increase in the morning in the high-resolution experiments, suggesting that small-scale moist convection became active in the late morning. In the lower-resolution experiments, convection and precipitation began in the late afternoon. As well as the enhancement of moisture transport from the boundary layer to the middle troposphere, the rapid formation of rain can also be attributed to the difference in diurnal precipitation cycles between lower and higher resolution experiments.
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U2 - 10.2151/sola.2016-053
DO - 10.2151/sola.2016-053
M3 - Article
AN - SCOPUS:85026568321
SN - 1349-6476
VL - 12
SP - 272
EP - 276
JO - Scientific Online Letters on the Atmosphere
JF - Scientific Online Letters on the Atmosphere
ER -