For Hydrological and Meteorological research over Cambodia with sparsed rainfall gauges, reliable rainfall is essential. In this study,12 gridded rainfall datasets with a reasonable spatial resolution including Asian Precipitation Highly Resolved Observational Data Integration Towards Evaluation (APHRODITE), Gridded rainfall Observational Dataset for precipitation and temperature Southeast Asia (SA-OBS), Integrated Multi-gridded rainfall Retrieva
Time series forecasting is a well-established research domain, particularly in finance and econometrics, with a multitude of methods and algorithms proposed to achieve accurate future trend predictions. This study aims to examine the effectiveness of two popular models, ARIMA and LSTM, for predicting trends in gold prices in finance and econometrics. Monthly global gold prices from January 2010 to December 2022 are analyzed, with a training set f
The study aims to predict the cereals prices trade flows in Cambodia, considering anticipated price fluctuations by using the ARIMA model. The data on cereals price of Cambodia was deseasonalized by the seasonality index (SI) for seasonality, resulting in monthly prices from 2000 to 2021. The target variable was independently smoothed by single exponential smoothing (SES) and Holt-Winters exponential smoothing (HWES) before transforming to the Bo
Cambodia is at an early stage of development, with 21% of people presently living in cities. Phnom Penh, the capital and largest city of Cambodia, is under urbanization pressure with a population of 2.1 million and the annual growth rate of 3.2% in 2019. In this regard, aging infrastructure needs an upgrade or replacement with a new design considering a percentage, as high as possible, of permeable surfaces in urban areas. Low Impact Development
In Koh Thom district, people mostly rely on agriculture for their incomes. The irrigation systems are based on prek namely small channels diverting the water of the Bassac River in the floodplain. This system potentially contributes to changing the flood dynamics in the area by reducing the period of submersion and its amplitude. This may change the relationships between surface and groundwater flow, with potential pollutant accumulation in aquif
The impacts of climate change on hydrological processes in Stung Sen Catchment, the largest tributary contributing to Tonle Sap Great Lake in Cambodia, were assessed using the SWAT (Soil and Water Assessment Tool) hydrological model. The model was calibrated and validated using daily streamflow records. The calibration and validation results indicated that the SWAT model was able to simulate the streamflow reasonably, with R2, NSE, PBIAS, and RSR
Bridges are high-cost and high-tech infrastructure which are essential to public transportation. However, it is subject to various environmental impacts. Especially, as it is built in the river, a detailed hydraulic study is essential before the construction of the bridge as it may cause a huge impact to the existing river conditions, livelihood near the river bank and river navigation. This study aims to quantify hydraulic responses at Prek Tama
Global climate change is cumulatively a significant driver of global environmental changes such as flow regime, sediment, and nitrate. Thus, this study aims to estimate changes in sediment and nitrate loads under future climate change scenarios by using SWAT model in Prek Thnot river basin, Cambodia, and a tributary of the Lower Mekong River. The study included three different models (GCMs) under two emission scenarios (RCPs) for two-time horizon
Precipitation variation always has an effect on the river streamflow. The change in discharge greatly impacts aquatic habitats, environmental amenities, recreational opportunities, irrigated agriculture production, hydropower production, and other industrial water uses. Therefore, studying the streamflow trends is important guidance for stakeholders and decision-makers to make a long-term and suitable management strategy. The aim of this study wa
The expansion of agricultural land, especially for commercial crops, and deforestation caused by ever-increasing domestic and social-economic development have influenced the streamflow and altered water resources in the Sen River, one of the largest tributaries of the Tonle Sap Lake in Cambodia. The objective of this study was to examine the streamflow under land use change by using Supervised Land Use Maps generated from satellite images. Landsa