Hydrology-Thiessen Polygon Method
A catchment may consist of several rainfall gauge stations. Thiessen polygon method can be used to determine the mean precipitation over that catch…
Showing posts from May, 2023Show all
Hydrology-Point Rainfall
Rainfall depth data collected by a station can also be presented in the form of point rainfall. It is usually plotted for certain timeframe, such a…
Construction Materials-Aggregate Specific Gravity
Knowing the aggregate weight at certain moisture level, we can proceed to determine its specific gravities. Specific gravity is the ratio of sample…
Point Rainfall Frequency
Point rainfall data collected by a station can be processed and produce a helpful tool in predicting future rainfall. First, we need to rearrange the…
Construction Materials-Aggregate Moisture Content
The weight of aggregate is depending on its moisture level. The moisture conditions can be categorized as: oven dry, air dry, saturated surface dry…
Hydrology-Hyetograph
A hyetograph is a plot of rainfall intensity against time interval. It can be derived from mass curve, and commonly illustrated using bar charts. …