Accurate estimation of point rainfall at ungauged locations from the measurements surrounding sites is critical in obtaining a continuous surface information. This can be accomplished through numerous interpolation methods, which have different strengths and weaknesses. The accuracy resulting information depends on density data observational errors, turn affect integrity hydrological studies that utilize as input. In this study, four methods—Thiessen polygon, inverse distance weighting...

Human interference in the upper River Njoro catchment has led to increased exposure of land accelerated erosion. An application that combined capabilities remote sensing, geographic information system (GIS) and agricultural non-point source (AgNPS) model was used estimate peak runoff rate sediment yield from catchment. Remotely sensed Landsat Thematic Mapper (TM) images were obtain cover associated AgNPS input parameters. Other parameters for extracted GIS layers using source-integrated...

The study to determine the drivers of water abstraction and river diversion in tropical rivers was undertaken four that constitute South West Upper Tana Basin Kenya.Rainfall discharge data for period between years 1998 2018, field survey collected through questionnaires used this study.The a one year, from January 2018 December 2018.The analysis guided by DPSIR framework.Regression correlation test nature strength relationship variables respectively.The results indicate main are climate...

This study was undertaken in Kitui South County the south eastern parts of Kenya. The main objective to develop a spatial model that can be used for selection suitable sites sand dam South. also assessed variation grain sizes and how these determine suitability dams. Data analysis done using three approaches. first approach involved use Remote Sensing (RS) technique where data preprocessed analyzed Erdas Imagine software Geographical Information Systems (GIS) modelling. distribution...

Floods are devastating natural disasters frequently occurring in many river basins such as Gucha-Migori River Basin, Kenya. However, non-structural countermeasures hydrologic modelling, flood proofing, and continuous forecasting have not been fully explored implemented to reduce risk, damage, vulnerabilities of events. The major challenge is the selection relevant probability distribution. main objective study was forecast events Basin for integrated water resource management. Daily...

The study to determine the impacts of water abstraction in South West Upper Tana Basin which is part larger basin was undertaken four major rivers, Thika, Kimakia, Kiama and Chania. Data for this obtained from Kenya Meteorological department (KMD), Water Resources Management (WRA) questionnaire surveys. questionnaires were administered period between January 2018 December both dry wet seasons. Regression correlation analysis used nature strength relationships different variables. results...

The changing patterns of land cover and use in the tropical river basin over time are critical. hydrological phenomena at sub scale affected positively or negatively by dynamics patterns. Hence identifying causes driving factors aid taking appropriate measures to avert impacts. This study determined influences basins dominated tea plantations, forests agricultural uses terms streamflow sediment flux variability Sondu Miriu River Basin Kenya, East Africa. Field-based investigations were...