chamber_level_metadata_guide.md

ESS-DIVE Soil Respiration Chamber Level Metadata Guide

Here you will find proposed guidelines for standardizing chamber level soil respiration data

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Chamber Level Metadata Content - Link to More Details

Chamber ID | Measurement Variable |Treatment

Opaque | Plants Removed | Instrument

Longitude | Latitude | Area

Volume | Observation Count | Collar Depth

Fan | Species

Sensor Depths | Notes

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Chamber ID

field name	Chamber_ID
requirement level	required
description	Unique chamber label; must appear in flux data table as well
format	character
units

Measurement variable

field name	Msmt_Var
requirement level	required
description	Flux should be interpreted as: "Rs" (soil respiration, whether CO2 or CH4), "Rh" (heterotrophic respiration only), "Reco" (ecosystem respiration), or "NEE" (net ecosystem exchange)
format	character
units

Treatment

field name	Treatment
requirement level	required
description	Soil or ecosystem treatment applied at measurement location; default is "None"
format	character
units

Opaque

field name	Opaque
requirement level	required
description	Opaque chamber?
format	logical
units

Plants removed

field name	Plants_Removed
requirement level	required
description	Plants removed from inside collar?
format	logical
units

Instrument

field name	Instrument
requirement_level	required
description	Measurement instrument (i.e. model)
format	character
units

Longitude

field name	Longitude
requirement level	optional
description	Decimal longitude of measurement location, positive = east
format	numeric
units	degrees

Latitude

field name	Latitude
requirement level	optional
description	Decimal latitude of measurement location, positive = north
format	numeric
units	degrees

Area

field name	Area
requirement level	optional
description	Soil surface measurement area
format	numeric
units	cm2

Volume

field name	Volume
requirement level	optional
description	Volume of measurement chamber
format	numeric
units	cm3

Observation Count

field name	Obs_Count
requirement level	optional
description	Observation count representing how many measurement cycles were completed and used to calculate the flux
format	numeric
units

Collar depth

field name	Collar_Depth
requirement level	optional
description	Depth of collar insertion
format	numeric
units	cm

Fan

field name	Fan
requirement level	optional
description	Mixing fan in chamber?
format	logical
units

Species

field name	Species
requirement level	optional
description	Comma-separated list of dominant species at measurement location
format	character
units

Sensor depths

field name	Sensor_Depths
requirement level	optional
description	Comma-separated depths of solid-state sensors, gradient method only
format	character
units	cm

Notes

field name	Notes
requirement_level	optional
description	Additional information about this measurement location
format	character
units