Article
Meteorology & Atmospheric Sciences
Chen Chen, Sandeep Sahany, Aurel F. Moise, Muhammad E. Hassim, Gerald Lim, Enkatraman Prasanna
Summary: The Maritime Continent (MC) has a significant impact on global climate, but its future climate, especially the ENSO-rainfall teleconnection, remains largely unknown. New CMIP6 models show that the negative ENSO teleconnection over the MC could significantly intensify under the SSP585 warming scenario, leading to enhanced droughts and flooding, agricultural impacts, and altered rainfall predictability. These projections are supported by model agreement and scale up with the warming trend, with noticeable adjustments during boreal summer.
JOURNAL OF CLIMATE
(2023)
Article
Meteorology & Atmospheric Sciences
Zhibo Gao, Xiaodong Yan, Siyan Dong, Neng Luo, Shuaifeng Song
Summary: Traditional pointwise verification is not accurate for rainfall forecast evaluation due to the double-penalty problem. In this study, an alternative object-based metric called MODE was used to evaluate the performance of eight cumulus parameterization schemes in simulating rainfall. The results showed that KFCuP, New Tiedtke, and KSAS schemes performed well in simulating heavy rainfall objects in different regions of China. The study also found a positive correlation between meridional wind and water vapor inflow, indicating the importance of meridional wind in regional rainfall simulation.
ATMOSPHERIC RESEARCH
(2023)
Article
Meteorology & Atmospheric Sciences
Shibo Gao, Danlian Huang, Ningzhu Du, Chuanyou Ren, Haiqiu Yu
Summary: Ensemble dynamical downscaling of precipitation over China based on two different cumulus convective parameterization schemes showed superior performance in capturing the characteristics of precipitation patterns and improving the representation of both annual mean and interannual variations. The ensemble also demonstrated the highest skill in representing precipitation anomalies at regional scales for all subregions, as well as capturing the spatial patterns and temporal variations of dominant precipitation variability modes.
ATMOSPHERIC RESEARCH
(2022)
Article
Meteorology & Atmospheric Sciences
Xiaojing Li, Youmin Tang, Xunshu Song, Ting Liu
Summary: This study investigates the decadal variation and predictability of Maritime Continent rainfall in the wet season, and finds that the signal strength and phases of El Nino-Southern Oscillation are key controlling factors.
JOURNAL OF CLIMATE
(2022)
Article
Environmental Sciences
Ravidho Ramadhan, Marzuki Marzuki, Helmi Yusnaini, Robi Muharsyah, Fredolin Tangang, Mutya Vonnisa, Harmadi Harmadi
Summary: This study assessed the latest version of GSMaP data for the IMC using RG observations from December 2021 to June 2022. GSMaP version 08 showed varying levels of correlation with RG observations at different time scales, tending to overestimate precipitation. GSMaP captured diurnal patterns and heavy rainfall but overestimated light rainfall and consecutive wet days while underestimating consecutive dry days. The accuracy of GSMaP daily data depended on topographic conditions, and the near-real-time data showed potential for faster rainfall observation in the IMC.
Review
Geosciences, Multidisciplinary
Anahi Villalba-Pradas, Francisco J. Tapiador
Summary: Convection plays a crucial role in climate and weather events, making accurate predictions of its time, location, and development essential. Parameterization of convection is necessary in global climate models and Earth system models due to the scale differences. This paper examines the choices made in convection schemes and emphasizes the importance of observations in improving our understanding of convection physics.
GEOSCIENTIFIC MODEL DEVELOPMENT
(2022)
Article
Meteorology & Atmospheric Sciences
Chun-Yian Su, Chien-Ming Wu, Wei-Ting Chen, Jen-Her Chen
Summary: The unified parameterization framework significantly affects the diurnal cycle of precipitation over land by adjusting precipitation partition based on convective updraft fraction. Short-term hindcast experiments showed that the UP leads to more realistic precipitation diurnal cycle and spectrum over land.
Article
Meteorology & Atmospheric Sciences
Heri Kuswanto, Ben Kravitz, Brina Miftahurrohmah, Fatkhurokhman Fauzi, Ardhasena Sopahaluwaken, John Moore
Summary: This study investigates the potential impacts of climate intervention on the Indonesian Maritime Continent, finding that artificial intervention can mitigate extreme temperatures. Overall, intervention has a more significant effect on land areas, particularly in the southern monsoon region.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2022)
Article
Meteorology & Atmospheric Sciences
Gufeng Bian, Jianping Tang, Shuguang Wang, Juan Fang
Summary: The study evaluates the simulation of tropical cyclones (TCs) in the Western North Pacific using the Advanced Research version of the Weather Research and Forecasting Model (WRF-ARW) at a gray-zone resolution (9 km). Two sets of numerical experiments are conducted to test the effects of cumulus parameterization (CPS). The results show that the CPS experiment (ICPS) performs well in simulating TC frequency, while the experiment without CPS (NICPS) better reproduces the intensity and inner-core structure of intense TCs.
Article
Meteorology & Atmospheric Sciences
Meenakshi Shenoy, P. V. S. Raju, V. S. Prasad, K. B. R. R. Hari Prasad
Summary: In this study, the optimal combination of physical parameterization schemes for tropical cyclone forecasting is determined by investigating various combinations of microphysics, cumulus convection, and planetary boundary layer schemes. The performance of these combinations is evaluated by comparing the simulated track, intensity, and landfall time with observations. The results show that the combination of YSU PBL, KF cumulus convection, and Ferrier microphysics provides the least errors in track and intensity forecasts. The study also shows that this combination performs well in predicting the central pressure and maximum surface wind during landfall.
THEORETICAL AND APPLIED CLIMATOLOGY
(2022)
Article
Meteorology & Atmospheric Sciences
Biyin Xie, Yang Yang, Hailong Wang, Pinya Wang, Hong Liao
Summary: It is shown in this study that El Nino events can strengthen the biomass burning emissions of black carbon aerosol in the dry season from the Maritime Continent. The increased black carbon emissions can lead to changes in atmosphere temperature and land-sea thermal contrast, and further enhance ENSO variability and increase the frequency of extreme El Nino and La Nina events.
JOURNAL OF CLIMATE
(2023)
Article
Environmental Sciences
Nishi Srivastava, Nadege Blond
Summary: Meteorology plays a crucial role in regional aerosol concentration and distribution, which is closely linked to aerosol and their removal processes. This study investigates the impact of different microphysical and cumulus cloud parameterization schemes on the simulation of aerosol/pollutant concentrations using a chemical transport model. The results demonstrate significant differences in simulated meteorological parameters with different scheme combinations, highlighting the importance of selecting appropriate parameterization schemes for reliable modeling. Additionally, the study suggests that ensemble modeling may be preferable over single simulations.
ATMOSPHERIC ENVIRONMENT
(2022)
Article
Green & Sustainable Science & Technology
Shinya Hanaoka, Takuma Matsuda, Wataru Saito, Tomoya Kawasaki, Takashi Hiraide
Summary: This study identifies factors affecting the selection between land and maritime transport in long-distance inter-regional cross-border transport, finding that variables such as distance, export of manufacturing commodity, and landlocked countries play significant roles. Geographical conditions, country relationship, and regulations hinder the selection of land transport, while cross-border land corridors contribute to increase land transport ratio.
Article
Meteorology & Atmospheric Sciences
Shiyu Zhang, Minghao Wang, Lanning Wang, Xin-Zhong Liang, Chao Sun, Qingquan Li
Summary: The ability of climate models to capture extreme precipitation events is crucial. However, most existing models have biases in simulating extreme precipitation. In this study, different cumulus parameterization schemes were used to examine the performance and biases of the CWRF model in simulating extreme precipitation events in China. The ensemble cumulus parameterization scheme showed the best results, significantly improving the simulation of extreme precipitation compared to observational data.
ATMOSPHERIC RESEARCH
(2023)
Article
Meteorology & Atmospheric Sciences
Dazhi Xi, Kekuan Chu, Zhe-Min Tan, Jian-Feng Gu, Wenqiang Shen, Yi Zhang, Jianping Tang
Summary: The study analyzed the characteristics of tropical cyclone warm cores in high resolution reanalysis dataset and regional climate simulations, and found that the warm core intensity is positively correlated with TC intensity, while warm core height has no correlation with TC intensity. The parameterization schemes for cumulus convection have a significant impact on the warm core structures of simulated TCs, with different schemes leading to differences in warm core strength and height.