# data[].attributes.definition
Ideally datetime format according to ISO 8601 (yyyy=year, mm=month, dd=day, HH=hour, MM=minute, SS=second). Alternatively JD (Julian Date).

# data[].attributes.definition
The pressure altitude corrected for temperature deviations from the standard atmosphere.
Density altitude bears the same relation to pressure altitude as true altitude does to indicated altitude.

# data[].attributes.definition
The perpendicular measurement downward from a surface

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

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

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

# data[].attributes.definition
Depth of the Unsaturated zone. The vadose zone, also termed the unsaturated zone, is the part of Earth between the land surface and the top of the phreatic zone, the position at which the groundwater (the water in the soil's pores) is at atmospheric pressure ("vadose" is from the Latin for "shallow"). Hence, the vadose zone extends from the top of the ground surface to the water table.

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

# data[].attributes.definition
A diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circle. It can also be defined as the longest chord of the circle. Both definitions are also valid for the diameter of a sphere. In more modern usage, the length of a diameter is also called the diameter. In this sense one speaks of the diameter rather than a diameter (which refers to the line itself), because all diameters of a circle or sphere have the same length, this being twice the radius r.

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

# data[].attributes.definition
Diameter at breast height, or DBH, is the standard for measuring trees. DBH refers to the tree diameter measured at 4.5 feet above the ground.

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

# data[].attributes.definition
The relative permittivity of a material is its (absolute) permittivity expressed as a ratio relative to the permittivity of vacuum. Permittivity is a material property that affects the Coulomb force between two point charges in the material. Relative permittivity is the factor by which the electric field between the charges is decreased relative to vacuum. Likewise, relative permittivity is the ratio of the capacitance of a capacitor using that material as a dielectric, compared with a similar capacitor that has vacuum as its dielectric. Relative permittivity is also commonly known as dielectric constant, a term deprecated in engineering as well as in chemistry.

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

# data[].attributes.definition
Differential Phase Shift (ΦDP or PHI) is a measure of the difference in 2-way attenuation for the horizontal and vertical pulses in a pulse volume. As vertical and horizontal radar pulses pass through a particular target, the two pulses attenuate, or slow down, causing each pulse's phase to change. ΦDP shows the difference in phase shift between the horizontal pulse and the vertical pulse. This provides information about the shape and concentration of radar targets.

# data[].attributes.definition
The ratio of radar reflectivity measured by means of two signals that differ in one attribute, for example, polarization or wavelength.

# data[].attributes.definition
A digitally transmitted value via a digital interface, independent of the protocol used

# data[].attributes.definition
Distance measured from a sensor to a target object such as the surface of a water body or snow surface.

# data[].attributes.definition
Full width at half maximum of the spectrum. Representative of particules speed dispersion in the range gate.

# data[].attributes.note
no vocabulary available, how to proceed? Manual not publicly available

# data[].attributes.definition
The Doppler spread or Doppler spectrum width is usually defined as the standard deviation of the Doppler velocity about its mean value, regarding the velocity as a continuously distributed random variable with a probability density function equal to the normalized Doppler spectrum. Direction of polarization here is horizontal.

# data[].attributes.definition
The Doppler spread or Doppler spectrum width is usually defined as the standard deviation of the Doppler velocity about its mean value, regarding the velocity as a continuously distributed random variable with a probability density function equal to the normalized Doppler spectrum. Direction of polarization here is vertical.

# data[].attributes.definition
The radial component of the velocity vector of a scattering object as observed by a remote sensor, such as a Doppler radar or Doppler lidar.

# data[].attributes.definition
The frequency distribution of drop sizes (diameters, volumes) that is characteristic of a given cloud or of a given fall of rain.

# data[].attributes.definition
Operating parameter of a device. Current consumption of a device.

# data[].attributes.definition
A measure (or condition) of height, especially with respect to the height of a point on the earth's surface above a reference plane (usually mean sea level), as "station elevation."

# data[].attributes.definition
"Equivalent reflectivity factor" is the radar reflectivity factor that is calculated from the measured radar return power assuming the target is composed of liquid water droplets whose diameter is less than one tenth of the radar wavelength, i.e., treating the droplets as Rayleigh scatterers. The actual radar reflectivity factor would depend on the size distribution and composition of the particles within the target volume and these are often unknown.

# data[].attributes.note
equivalent_reflectivity_factor, unit is dBz - and please note that 'reflectivity' itself would not be appropriate here. In addition the description there relates to the unit. This has to be changed there

# data[].attributes.definition
In earth science, erosion is the action of surface processes (such as water flow or wind) that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location (not to be confused with weathering which involves no movement).

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

# data[].attributes.definition
Evapotranspiration is the sum of evaporation and plant transpiration from the Earth's land and ocean surface to the atmosphere.

# data[].attributes.definition
The amount of water that could be evaporated and transpired if there was sufficient water available.

# data[].attributes.definition
Filling level measured in non real-time.

# data[].attributes.definition
The frame counter is a counter that is incremented by the value 1 with each transmission.

# data[].attributes.definition
Number of rotations within a time period

# data[].attributes.definition
Water level with regard to an arbitrary gage datum (also see Water depth for comparison)

# data[].attributes.definition
Geologic units consists primarily of identifying physiographic units and determining the rock lithology or coarse stratigraphy of exposed units.

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

# data[].attributes.definition
Total short-wave direct and diffuse downward radation

# data[].attributes.definition
Total short-wave direct and diffuse upward radiation

# data[].attributes.definition
Please note or choose reference height (ellipsoid or geoid).

# data[].attributes.definition
If ellipsoid differs from WGS84 please note the reference ellipsoid.

# data[].attributes.definition
If ellipsoid differs from WGS84 please note the reference ellipsoid.

# data[].attributes.definition
Grain size (or particle size) is the diameter of individual grains of sediment, or the lithified particles in clastic rocks. The term may also be applied to other granular materials.

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

# data[].attributes.definition
The combination effect of heat and humidity on the temperature felt by people.

# data[].attributes.definition
Height is measure of vertical distance, either vertical extent or vertical position

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

# data[].attributes.definition
Vertical distance from the sea floor to a point.

# data[].attributes.definition
"Housekeeping"-time (date and time) of an Ecotech data logger

# data[].attributes.definition
Humification index. Hummification is the processes by which organic matter decomposes to form humus. In humus the initial structures or shapes can no longer be recognized. See also humus.

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

# data[].attributes.definition
Hydraulic conductivity, symbolically represented as K, is a property of vascular plants, soils and rocks, that describes the ease with which a fluid (usually water) can move through pore spaces or fractures. It depends on the intrinsic permeability of the material, the degree of saturation, and on the density and viscosity of the fluid.

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

# data[].attributes.definition
Hydraulic conductivity, symbolically represented as K, is a property of vascular plants, soils and rocks, that describes the ease with which a fluid (usually water) can move through pore spaces or fractures. It depends on the intrinsic permeability of the material, the degree of saturation, and on the density and viscosity of the fluid.

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

# data[].attributes.definition
Hydraulic conductivity, symbolically represented as K, is a property of vascular plants, soils and rocks, that describes the ease with which a fluid (usually water) can move through pore spaces or fractures. It depends on the intrinsic permeability of the material, the degree of saturation, and on the density and viscosity of the fluid.

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

# data[].attributes.definition
Difference in the 2H:1H ratio between the sample and standard

# data[].attributes.definition
Difference in the 2H:1H ratio between the sample and standard

# data[].attributes.term
Ice nucleating particle number concentration

# data[].attributes.definition
Number per unit volume of particles able to serve as condensation nuclei for ice phase cloud particles

# data[].attributes.definition
Binary status to indicate the status of an instrument or other piece of equipment.

# data[].attributes.definition
Code value recorded by instrument indicating some information regarding the status of the instrument

# data[].attributes.definition
Incident light from the hemisphere per wavelength.

# data[].attributes.definition
Geographical land classification- genetically homogeneous territorial unit within natural boundaries with a certain structure and a certain character of interrelationships of considered components

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

# data[].attributes.definition
Leaf area index (LAI) is a dimensionless quantity that characterizes plant canopies. It is defined as the one-sided green leaf area per unit ground surface area (LAI = leaf area / ground area, m2 / m2) in broadleaf canopies.

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

# data[].attributes.definition
The effect of moisture settling on the surface of a leaf as a result of either condensation or rainfall.

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

# data[].attributes.definition
Lightning is a natural phenomenon consisting of electrostatic discharges occurring through the atmosphere between two electrically charged regions.

# data[].attributes.note
use "Lightning, average distance" and "Lightning, strike count". as more specific terms

# data[].attributes.definition
The average distance of lightning strikes to the weather station.

# data[].attributes.definition
The count of lightning strikes around a weather station.

# data[].attributes.definition
Typically binary value if a fixed limit value is reached, e.g. max filling level or any other limit or threshold.

# data[].attributes.definition
A measure of the weight of the liquid water droplets in the atmosphere above a unit surface area on the earth, given in units of kg m-2, for example.

# data[].attributes.definition
Litterfall, plant litter, leaf litter, tree litter, soil litter, or duff, is dead plant material (such as leaves, bark, needles, twigs, and cladodes) that have fallen to the ground.

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

# data[].attributes.definition
The suspended load of a flow of fluid, such as a river, is the portion of its sediment uplifted by the fluid's flow in the process of sediment transportation. It is kept suspended by the fluid's turbulence. The suspended load generally consists of smaller particles, like clay, silt, and fine sands.

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

# data[].attributes.definition
A counter of the number of times the battery voltage dropped below a minimum threshold

# data[].attributes.definition
Langelier Saturation Index is an indicator of the degree of saturation of water with respect to calcium carbonate

# data[].attributes.definition
Langelier Saturation Index is an indicator of the degree of saturation of water with respect to calcium carbonate

# data[].attributes.definition
"Mass concentration" means mass per unit volume and is used in the construction "mass_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical species or biological group denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself.

# data[].attributes.note
see e.g. mass_concentration_of_absorption_equivalent_black_carbon_of_pm10_dry_aerosol_particles_in_air in cf standard names. The term 'Mass concentration' already exists but the definition, sampling media and the compartment is to specific and has to be expanded to Air and atmosphere at least

# data[].attributes.definition
The (mass) concentration ρi is defined as the mass of a constituent mi divided by the volume of the mixture V. In this case it means the mass concentration of dsDNA molecules in a solution measured in nanogram dsDNA per microliter sample volume.

# data[].attributes.definition
When water is in contact with solid particles (e.g., clay or sand particles within soil), adhesive intermolecular forces between the water and the solid can be large and important

# data[].attributes.definition
Specified in decimal interpretation:
1 kB = 1000 Byte
1 MB = 1.000.000 Byte
1 GB = 1.000.000.000 Byte

# data[].attributes.definition
The movement velocity is the speed of an object derived from the change in its position over time.

# data[].attributes.note
No provenance found. This velocity comes for example from GPS data.