NR 220 Watershed Equipment ID
Staff Gauge
-measures water depth -the discharge that corresponds to various depths is calculated using a stage-discharge relation graph -units: depth in mm, cm, inches, or ft converts to discharge in m^3/s or ft^3/s using a stage/discharge formula or graph
Anemometer
-this piece with cups measures wind speed -this piece with fan and tail measures windspeed AND direction -units: m/s or ft/s and/or degrees clockwise from North (image shows one with a cup)
Ring Infiltrometer
-measures the rate at which water infiltrates the soil -rate calculated at various time steps using a ruler for depth and stopwatch for time -units: a rate in mm/sec
All Weather Gauge
-measures rain and snow -units: mm or inches
TDR Probe
-measures soil moisture -probe inserted in the soil, electricity travels from one arm to the other, the time it takes is directly related to soil water content -calibrations must be made for soil types -units: %
Hail Board
-12x12 piece of styrofoam covered with aluminum foil -after hail events, is sent to Colorado Climate Center - record size and number of indentations -units: counts and diameter of dents
Parshall Flume
-measures streamflow through a known cross sectional area and water depth -units: m^3/s or ft^3/s
Thermistor
-measures temperature and humidity -can cover with a radiation shield (beehive shaped) -units: degrees F or C
Pygmy Current Meter
-attaches to a wading rod, rotations per unit time convert to velocity -wading rod: units = mm or inches -head rod: units = depth in mm or calculate m^3/s -units: counts, converted to m/s or ft/s used to calculate m^3/s or ft^3/s with cross-sectional area
Canometer
-collects liquid and solid price -use to estimate evaporation -units: mm or inches
Barometer
-measures atmospheric pressure -units: Bars, mm/hg, hPa
Pyranometer
-measures incoming or outgoing solar radiation -one facing down and one facing up can be used to measure albedo (reflectivity) -units: Watts -Albedo: unitless
Belfort or universal gauge
-measures rain and snow -can also add an alter shield which allows the gauge to collect more precip/reduce under catch bias -units: mm or inches
Tipping Bucket
-measures rate/intensity of RAIN only -units: mm/hr
Ultra Sonic Depth Sensor
-measures snow depth -soundwave sent from sensor, reflects off ground/snow - sensor measures travel time for sound wave adjusted for air temp -units: depth in mm or inches
