Projection of Climate Change on the Probability of Dengue Hemorrhagic Fever in North Sumatra Province by Theresia Grefyolin Simbolon, Erna Frida, Marzuki Sinambela, Marhaposan Situmorang, Syahrul Humaidi, Yahya Darmawan

“…The projection probability of dengue hemorrhagic fever shows that North Sumatra Province still has a high chance of being categorized as a high risk area for dengue fever with a probability value of 0.82 - 0.99.…”
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Study of the Utilization of WRF Model Output Data to Produce Daily Flood Forecast Maps in the North Sumatra Region by Mega Sirait, Syahrul Humaidi, Marzuki Sinambela, Marhaposan Situmorang, Erna Frida

“…Therefore, the WRF model output rainfall prediction data can be used to create a daily flood forecast map in the North Sumatra region.…”
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Effect of NaOH Concentration on Magnetic Properties and Structural Studies of MgFe2O4 Based on Natural Iron Sand Synthesized by Co-Precipitation Method by Shiamny Nur Khair Tarigan, Syahrul Humaidi, Martha Rianna, Nurul Maulida R Nasution

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Effect of surface area on electrical properties of NiCo2O4-reduced graphene oxide nanocomposites for supercapacitor electrodes applications by Andriono Manalu, Kerista Tarigan, Syahrul Humaidi, Masno Ginting, Istas Pratomo Manalu, Ikhwanuddin

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Analysis Of Spearman Rank Correlation & Linear Regression Of Atmospheric Stability And Cloud Tops Temperature Of Himawari-8 IR Satellite Images (Case Study Of Hail On May 22, 2022) by Lestari Irene Purba, Syahrul Humaidi, Yahya Darmawan, Zahedi Zahedi, Tulus Ikhsan Nasution

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Characterization of Meteorological Drought Using Standardized Precipitation Index and Standardized Precipitation Evapotranspiration Index Methods in North Sumatera by Fanly Parhimpunan Manullang, Kerista Tarigan, Marhaposan Situmorang, Syahrul Humaidi, Deassy Eirene Diana Doloksaribu, Yahya Darmawan

“…The drought index is used to identify and describe the level of drought in an area, the methods used in this study are the Standardized Precipitation Index and the Standardized Precipitation Evapotranspiration Index which are calculated based on climate data with a span of 24 years as many as 67 rain observation posts in North Sumatra using R Studio software. The purpose of this study is to determine the factors of global climate phenomena that affect drought in North Sumatra and its impact on rice crop productivity and analyze drought characteristics spatially and temporarily. …”
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Characteristics of Cloud to Ground (CG) Lightning and Heavy Rainfall in Medan and Deli Serdang by Patra Mesiari Tarigan, Syahrul Humaidi, Yahya Darmawan, Marhaposan Situmorang, Martha Rianna

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Rainfall Characteristics In Medan City With Pearson Correlation Analysis (Case Study Of February 27, 2022) by Endah Paramita, Syahrul Humaidi, Yahya Darmawan

“…February is climatologically the first peak of the dry season in the North Sumatra region, but floods can still occur. This study analyzes the characteristics of rainfall patterns that occur during extreme rainfall that occurred in the Medan area on February 27, 2022 which resulted in flooding in several areas in Medan with Pearson correlation. …”
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