# data[].attributes.definition
Porosity or void fraction is a measure of the void (i.e. "empty") spaces in a material, and is a fraction of the volume of voids over the total volume, between 0 and 1, or as a percentage between 0 and 100%.

# data[].attributes.definition
Porosity or void fraction is a measure of the void (i.e. "empty") spaces in a material, and is a fraction of the volume of voids over the total volume, between 0 and 1, or as a percentage between 0 and 100%.

# data[].attributes.definition
Position of an element that interacts with water such as reservoir gates

# data[].attributes.definition
Position of an element that interacts with water such as reservoir gates

# data[].attributes.definition
Hail is a form of solid precipitation. It is distinct from ice pellets (American English "sleet"), though the two are often confused. It consists of balls or irregular lumps of ice, each of which is called a hailstone.

# data[].attributes.note
Added to support Critical Zone Observatory (CZO) data use cases. 

# data[].attributes.definition
Binary value which distinguishes between no precipitation (0) and precipitation (1).

# data[].attributes.definition
Precipitation height, the liquid portion of the precipitation. Default min/max values valid for minute-values according to WMO quality control Guidelines.

# data[].attributes.definition
Precipitation height, the snow portion of the precipitation.

# data[].attributes.definition
Precipitation height, the snow-equivalent portion of the precipitation. This it the amount of water in mm which you get by melting snow with known heigt and density.

# data[].attributes.definition
Precipitation such as rainfall. Should not be confused with settling.

# data[].attributes.definition
Precipitation height, total sum of rain, snow, hail. (Please note if the device is heated. Values are quasi real-time with heating. Without heating, values are not real time.)

# data[].attributes.definition
Precipitation intensity, the hail portion of the precipitation.

# data[].attributes.definition
Precipitation intensity, the liquid portion of the precipitation. Default min/max values valid for minute-values according to WMO quality control Guidelines.

# data[].attributes.definition
A measure of the intensity of rainfall, calculated as the depth of water to fall over a given time period if the intensity were to remain constant over that time interval (in/hr, mm/hr, etc)

# data[].attributes.definition
Precipitation intensity, total sum of rain, snow, hail. Please note if the device is heated. Values are quasi real-time with heating. Without heating, values are not real time.

# data[].attributes.definition
Mean velocity of particles within one specific particle size class.

# data[].attributes.definition
Coded value for the type of precipitation. Please note the type of sensor to enable the decoding.

# data[].attributes.definition
Operating parameter of a device. Absolute pressure.

# data[].attributes.definition
c.f. matrix potential. E.g. Tensiometer.

# data[].attributes.definition
Operating parameter of a device. Relative pressure.

# data[].attributes.definition
Operating parameter of a device. Relative pressure.

# data[].attributes.definition
Rate at which an ecosystem accumulates energy by fixation of sunlight, including that consumed by the ecosystem.

# data[].attributes.definition
Rate at which an ecosystem accumulates energy by fixation of sunlight, including that consumed by the ecosystem.

# data[].attributes.definition
Please note in the sensor description to which value the quality flag belongs and what it means.

# data[].attributes.definition
Specific Differential Phase (KDP) is a derived product that shows the gradient, or change, in Differential Phase Shift (ΦDP). Positive KDP values indicate greater phase shift in the horizontal than the vertical.
Increasing KDP is an indication of an increase in the size and concentration of rain drops, and thus, an increase in rain rate. This means that KDP is useful for pinpointing areas where the heaviest rainfall is occurring.
naming accoring to WMO CF-extension Radial

# data[].attributes.term
Radial velocity of scatterers, away from instrument

# data[].attributes.definition
A velocity is a vector quantity. "Radial velocity away from instrument" means the component of the velocity along the line of sight of the instrument where positive implies movement away from the instrument (i.e. outward). The "instrument" (examples are radar and lidar) is the device used to make the observation. The "scatterers" are what causes the transmitted signal to be returned to the instrument (examples are aerosols, hydrometeors and refractive index irregularities), of whatever kind the instrument detects. A standard name referring to radial velocity "toward_instrument" should be used for a data variable having the opposite sign convention.

# data[].attributes.term
Radial velocity of scatterers, towards instrument

# data[].attributes.definition
A velocity is a vector quantity. "Radial velocity toward instrument" means the component of the velocity along the line of sight of the instrument where positive implies movement toward the instrument (i.e. inward). The "instrument" (examples are radar and lidar) is the device used to make the observation. The "scatterers" are what causes the transmitted signal to be returned to the instrument (examples are aerosols, hydrometeors and refractive index irregularities), of whatever kind the instrument detects. A standard name referring to radial velocity "away_from_instrument" should be used for a data variable having the opposite sign convention.

# data[].attributes.definition
Reflected light/radiation from ground area per wavelength.

# data[].attributes.definition
Long wave (far infrared) downward facing radiation

# data[].attributes.definition
Long wave (far infrared) upward facing radiation

# data[].attributes.term
Photosynthetic photon flux density (PPFD)

# data[].attributes.definition
The number of photons per unit time and per unit area in the wavelength band 400 to 700 nm

# data[].attributes.note
Added to support Critical Zone Observatory (CZO) data use cases. 

# data[].attributes.definition
Photosynthetic photon flux density downward

# data[].attributes.definition
Photosynthetic photon flux density upward

# data[].attributes.definition
Diffuse photosynthetic photon flux density

# data[].attributes.definition
Total amount of incoming radiation from all frequencies

# data[].attributes.definition
Total amount of outgoing radiation from all frequencies

# data[].attributes.definition
Total amount of outgoing radiation from all frequencies

# data[].attributes.definition
Soil reponse of a reflected standing electromagnetic wave of a particular frequency which is related to the stored energy within the medium. This is the real portion of the complex dielectric constant.

# data[].attributes.definition
Soil reponse of a reflected standing electromagnetic wave of a particular frequency which is related to the stored energy within the medium. This is the real portion of the complex dielectric constant.

# data[].attributes.definition
In telecommunications, received signal strength indicator (RSSI) is a measurement of the power present in a received radio signal.

# data[].attributes.definition
In telecommunications, received signal strength indicator (RSSI) is a measurement of the power present in a received radio signal.

# data[].attributes.definition
Groundwater recharge or deep drainage or deep percolation is a hydrologic process where water moves downward from surface water to groundwater. Recharge is the primary method through which water enters an aquifer. This process usually occurs in the vadose zone below plant roots and is often expressed as a flux to the water table surface. Recharge occurs both naturally (through the water cycle) and through anthropogenic processes (i.e., "artificial groundwater recharge"), where rainwater and or reclaimed water is routed to the subsurface.

# data[].attributes.note
Added to support Critical Zone Observatory (CZO) data use cases. 

# data[].attributes.definition
Groundwater recharge or deep drainage or deep percolation is a hydrologic process where water moves downward from surface water to groundwater. Recharge is the primary method through which water enters an aquifer. This process usually occurs in the vadose zone below plant roots and is often expressed as a flux to the water table surface. Recharge occurs both naturally (through the water cycle) and through anthropogenic processes (i.e., "artificial groundwater recharge"), where rainwater and or reclaimed water is routed to the subsurface.

# data[].attributes.note
Added to support Critical Zone Observatory (CZO) data use cases. 

# data[].attributes.definition
dBZ stands for decibel relative to Z. It is a logarithmic dimensionless technical unit used in radar, mostly in weather radar, to compare the equivalent reflectivity factor (Z) of a radar signal reflected off a remote object (in mm6 per m3) to the return of a droplet of rain with a diameter of 1 mm (1 mm6 per m3). It is proportional to the number of drops per unit volume and the sixth power of drops' diameter and is thus used to estimate the rain or snow intensity.

# data[].attributes.note
Added to support Critical Zone Observatory (CZO) data use cases.

# data[].attributes.definition
dBZ stands for decibel relative to Z. It is a logarithmic dimensionless technical unit used in radar, mostly in weather radar, to compare the equivalent reflectivity factor (Z) of a radar signal reflected off a remote object (in mm6 per m3) to the return of a droplet of rain with a diameter of 1 mm (1 mm6 per m3). It is proportional to the number of drops per unit volume and the sixth power of drops' diameter and is thus used to estimate the rain or snow intensity.

# data[].attributes.note
Added to support Critical Zone Observatory (CZO) data use cases.

# data[].attributes.definition
The ratio of the amount of water vapour in the air compared to the maximum amount of water vapour that can theoretically be held at the air's temperature.

# data[].attributes.definition
Operating parameter of a data logger. Relative humidity of a data logger.

# data[].attributes.definition
Operating parameter of a data logger. Relative humidity of a device.

# data[].attributes.definition
Permittivity is a physical quantity that describes how an electric field affects, and is affected by a dielectric medium, and is determined by the ability of a material to polarize in response to the field, and thereby reduce the total electric field inside the material. Thus, permittivity relates to a material's ability to transmit (or "permit") an electric field.

# data[].attributes.definition
The electrical resistance of an object is a measure of its opposition to the flow of electric current. The inverse quantity is electrical conductance, and is the ease with which an electric current passes.

# data[].attributes.note
Added to support Critical Zone Observatory (CZO) data use cases. 

# data[].attributes.definition
The electrical resistance of an object is a measure of its opposition to the flow of electric current. The inverse quantity is electrical conductance, and is the ease with which an electric current passes.

# data[].attributes.note
Added to support Critical Zone Observatory (CZO) data use cases. 