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Relation between cloud thickness-cloud number concentration differences and rain occurrence based on Koren-Feingold model
Sulistyowati R.a,b, Viridi S.a, Kurniadi R.a, Srigutomo W.a
a Physics of Earth and Complex Systems Research Division, Physics Department, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Bandung, 40132, Indonesia
b Physics Education Department, Faculty of Teacher Training and Science Education, Universitas PGRI Palembang, Palembang, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© Published under licence by IOP Publishing Ltd.Koren-Feingold (KF) model, a model that relates growth of cloud thickness (H) and cloud number concentration (N) is discussed and analyzed in this work. Two boundary conditions are required by this model, where the first is cloud thickness potential H0 and the second is aerosol concentration N0. The initial conditions are simply H(0) = 0 and N(0) = 0. Several pairs of (H0, N0) values are chosen in calculating the precipitation. Three categories of rainfall are used in this work, which are no drizzle D0, light drizzle D1, and drizzle D2. As H evolves in time t, it produces maximum cloud thickness Hmax and saturation cloud thickness Hsat , as also N does Nmax and Nsat . Two kinds of cloud thickness difference, ΔH1 = H0 – Hmax and ΔH2 = H0 – Hsat are proposed and also for cloud concentration difference ΔN1 and ΔN2 with similar definitions. Pairs of (ΔH1 , ΔN1 ) and (ΔH2 , ΔN2 ) are used in analyzing simulation results. The first pair can be used as prediction of rainfall occurrence, while the second pair is more for confirmation and understanding the relation between cloud thickness and cloud concentration in producing rainfall. It is observed that H < H0 and N < N0 are always fulfilled. Rainfall in category D2 will have significant differences in H and N, while in category D0 will not. Typical differences for H are about 80% and 30-50% for both cases. Deeper discussion about (ΔH1 , ΔN1 ) and (ΔH2 , ΔN2) is presented in this work.[/vc_column_text][vc_empty_space][vc_separator css=".vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}"][vc_empty_space][megatron_heading title="Author keywords" size="size-sm" text_align="text-left"][vc_column_text]Aerosol concentration,Initial conditions,nocv1,Number concentration,Three categories[/vc_column_text][vc_empty_space][vc_separator css=".vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}"][vc_empty_space][megatron_heading title="Indexed keywords" size="size-sm" text_align="text-left"][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=".vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}"][vc_empty_space][megatron_heading title="Funding details" size="size-sm" text_align="text-left"][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=".vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}"][vc_empty_space][megatron_heading title="DOI" size="size-sm" text_align="text-left"][vc_column_text]https://doi.org/10.1088/1742-6596/771/1/012047[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]