1.7 Flashcards
Used to measure humidity
Psychrometer or Hygrometer
Used to measure incoming and outgoing of radiation.
Radiometer
Used to measure wind speed and direction.
Anemometer
Used to measure humidity, temperature, air pressure, and wind speed.
Weather balloons
Equipment for measurement of atmospheric moisture.
- Psychrometer (hygrometer)
- Anemometer,
- Radiometer,
- Rainfall Gage,
- Evaporation Pans,
- Weather Balloons,
- Mercurial Barometer
It acts as a weighing balance, and changes in atmospheric pressure are detected from changes in height of the column or mercury.
Mercurial Barometer
Is an instrument based on temperature difference between two thermometers.
Psychrometer
Other term for psychrometer
Hygrometer
Measure of degree of saturation of the air.
Relative humidity.
It moves in a flip-flop motion and make electrical contact for every increment of rainfall.
Tipping bucket recording gage
Radar means
Radio detection and ranging
It is used to measure rainfall rates since 1994
Radar
Process which water in its liquid or solid state is transformed into water vapor.
Evaporation
Used to measure movement of water from the surface into the soil zone (infiltration)
Infiltrometer
Generally measured by observing stage, or elevation above a specified elevation datum, in a channel and then relating stage to a discharge via a rating curve.
Streamflow
Is a fixed scale set so that a portion is immersed in water and can be read manually during a storm passage.
Staff gage.
Is lowered from a bridge structure to the water surface, and reading are taken as a function of time through a storm event.
Wire-weight gage
Uses a small amount of cork inside an enclosed staff gage.
Crest stage gage
Senses water level by maintaining a continuous stream of gas in a small pipe under the water.
Bubble gage
Senses the pressure or height of water that sits above the monitor.
Transducer
ADFM means
Acoustic Doppler Flow Meters
A new method to accurately measure flow rate by measuring the actual velocity profile in a pipe or open channel.
ADFM (Acoustic Doppler Flow Meter)
Used to collect, transmit, and analyze data from remote gages in a large watershed.
Flood Alert System
HCOEM means
Harris County Office of Emergency Management
This system allows emergency vehicles and personnel to better plan for the unexpected during a large storm event over the watershed.
FAS3
It relies on NEXRAD data to estimate rainfall intensities and cumulative amounts over a 100 m² watershed in southwest Houston.
FAS2
