TY - JOUR
T1 - Evolution of mesoscale convective system properties as derived from himawari-8 high resolution data analyses
AU - Putri, Nurfiena Sagita
AU - Iwabuchi, Hironobu
AU - Hayasaka, Tadahiro
N1 - Funding Information:
suggestions. High appreciation is given to Muhammad Rais Abdillah of the Graduate School of Science, Tohoku University for processing the wind profile for the two case studies and to Dr. Kim Dionne Whitehall for the discussion in GTG technical development. The Himawari-8 data are obtained from NICT Science Cloud of the National Institute of Information and Communications Technology (NICT), Japan. The RMM index of MJO is obtained from the Bureau of Meteorology Australia. The Niño-3.4 SST anomaly and the DMI are both calculated by National Oceanic and Atmospheric Administration (NOAA) of the United States. NSP would like to thank the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan, for the scholarship support. This research was supported by Grant-in-Aid for Scientific Research (B) 16H04046 from the Japan Society for the Promotion of Science (JSPS), and also by JAXA GCOM 6th RA (PI No.216).
Funding Information:
The authors are grateful to the editor and two anonymous reviewers for their insightful comments and suggestions. High appreciation is given to Muhammad Rais Abdillah of the Graduate School of Science, Tohoku University for processing the wind profile for the two case studies and to Dr. Kim Dionne Whitehall for the discussion in GTG technical development. The Himawari-8 data are obtained from NICT Science Cloud of the National Institute of Information and Communications Technology (NICT), Japan. The RMM index of MJO is obtained from the Bureau of Meteorology Australia. The Niño-3.4 SST anomaly and the DMI are both calculated by National Oceanic and Atmospheric Administration (NOAA) of the United States. NSP would like to thank the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan, for the scholarship support. This research was supported by Grant-in-Aid for Scientific Research (B) 16H04046 from the Japan Society for the Promotion of Science (JSPS), and also by JAXA GCOM 6th RA (PI No.216).
Publisher Copyright:
©The Author(s) 2018.
PY - 2018
Y1 - 2018
N2 - Two case studies of the mesoscale convective system (MCS) in the Indonesian region were conducted by applying an improved “Grab ‘em Tag ‘em Graph ‘em” (GTG) tracking algorithm and the Integrated Cloud Analysis System (ICAS) algorithm to Himawari-8 AHI infrared data. The first case over Java Island showed a land-origi-nating MCS in the boreal winter, which coincided with a wet phase of Madden-Julian Oscillation (MJO) over the Maritime Continent. The second case showed the evolution of MCS under the influence of a strong vertical wind shear during the boreal summer. The cloud top height (CTH) of deep convective part in the first case was larger than that in the second case, while the temporal evolution of CTH was similar between the two cases. For the anvil part, the median CTH of the second case was relatively stable at around 13 km, while that of the first case showed a considerable temporal variation ranging from 14 to 16 km. The cloud-particle effective radius (CER) of the anvil increased after the period of maximum deep convective CTH in both cases, although the CER was slightly larger in the second case than in the first case. These differences in cloud properties between the two cases were attributable to the background wind profiles.
AB - Two case studies of the mesoscale convective system (MCS) in the Indonesian region were conducted by applying an improved “Grab ‘em Tag ‘em Graph ‘em” (GTG) tracking algorithm and the Integrated Cloud Analysis System (ICAS) algorithm to Himawari-8 AHI infrared data. The first case over Java Island showed a land-origi-nating MCS in the boreal winter, which coincided with a wet phase of Madden-Julian Oscillation (MJO) over the Maritime Continent. The second case showed the evolution of MCS under the influence of a strong vertical wind shear during the boreal summer. The cloud top height (CTH) of deep convective part in the first case was larger than that in the second case, while the temporal evolution of CTH was similar between the two cases. For the anvil part, the median CTH of the second case was relatively stable at around 13 km, while that of the first case showed a considerable temporal variation ranging from 14 to 16 km. The cloud-particle effective radius (CER) of the anvil increased after the period of maximum deep convective CTH in both cases, although the CER was slightly larger in the second case than in the first case. These differences in cloud properties between the two cases were attributable to the background wind profiles.
KW - Infrared channels
KW - Mesoscale convective system
KW - “grab ‘em tag ‘em graph ‘em” tracking algorithm
UR - http://www.scopus.com/inward/record.url?scp=85053793759&partnerID=8YFLogxK
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U2 - 10.2151/jmsj.2018-020
DO - 10.2151/jmsj.2018-020
M3 - Article
AN - SCOPUS:85053793759
SN - 0026-1165
VL - 96B
SP - 239
JO - Journal of the Meteorological Society of Japan
JF - Journal of the Meteorological Society of Japan
ER -