What are hydrological variables?

What are hydrological variables?

The hydrological variables investigated are average annual rainfall (P), precipitation concentration degree (PCD), antecedent dry weather period (ADWP), and ratio of dry days to rainy days (nD/nR). With the exception of P, all other variables represent the temporal variability of precipitation.

What is a hydrological assessment?

In engineering, a hydrological assessment is carried out to quantify the flow or volume of water in a river or stream, over land, in soils, in a pond or in a reservoir. Hydrological assessment is therefore used to help reassure or alert developers, planners and land managers to potential issues for concern.

What is hydrological scale?

In hydrology, scale is defined as the time or length of a process, observation or model (Blöschl and Sivapalan 1995. and Sivapalan, M., 1995. Hydrological Processes, 9 (3–4), 251–290.

What is a hydrological feature?

Hydrologic features are the unit of water information required to convey identity of real-world water-objects through the data processing chain from observation to water information.

What is the importance of measuring hydrological parameters?

Hydrological measurements are essential for the interpretation of water quality data and for water resource management. Variations in hydrological conditions have important effects on water quality.

What means hydrological?

hydrology. / (haɪˈdrɒlədʒɪ) / noun. the study of the distribution, conservation, use, etc, of the water of the earth and its atmosphere, particularly at the land surface.

What is hydrological cycle explain with diagram?

Water Cycle Diagram The Hydrologic Cycle (also called the Water Cycle) is the continuous movement of water in the air, on the surface of and below the Earth. This cycle is the exchange of energy which influences climate. When water condenses, it releases energy and warms the environment.

What drives the hydrological cycle?

The sun, which drives the water cycle, heats water in the oceans. Some of it evaporates as vapor into the air. Ice and snow can sublimate directly into water vapor.

What are hydrological instruments?

Hydrological Instruments

• Automatic Water Level Recorder.
• Water Level Recorder (Radar Type) Sensor.
• Water Level Recorder (Pressure Type) Sensor.
• Water Level Recorder (Bubbler Type) Sensor.
• Water Level Recorder (Shaft Encoded) Sensor.
• Water Velocity Meter (Digital Revolution ) Type.

What are the sources of hydrological data?

Sources of hydrological data

• Catchment Flood Management plans.
• Climate Records.
• Flood maps.
• Gauged flow records.
• Groundwater vulnerability maps.
• Hydrological summaries.
• MORECS.
• Groundwater level records.

What causes hydrological disasters?

The primary causes of all hydro-meteorological disasters are water and wind (風水). Precipitation, in many different forms at the upstream end leads to flooding when it is too high and droughts when it is too low.