BIFoR FACE

Free-Air CO₂ Enrichment Facility
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BIFoR FACE - Live Readings ⓘ
Source:Arrays A1-A6
Values:Mean of TAIR and WS
Min / Max:Today, mean across arrays
Arrays:--
Reading:--
--°C
Air Temperature
Min --°C
Max --°C
--m/s
Wind Speed
Min --m/s
Max --m/s
CO₂ Enrichment ⓘ
Elevated:A1, A4, A6 (C5MIN)
Ambient:A2, A3, A5 (C5MIN)
Target:+150 ppm
Fumigation:Daylight, 1 Apr - 1 Nov, above 5°C
Reading:--
--ppm
Elevated · A1 A4 A6
--ppm
Ambient · A2 A3 A5
--ppm
Enrichment
Enrichment runs April to November, in daylight, and pauses below 5 °C. Target is +150 ppm above ambient.
Research Metrics
Temperature & Water
--% ⓘ
Source:Arrays A1-A6
Derived:H2O, BP, TAIR
Today:--
Reading:--
Humidity
Relative humidity
--kPa ⓘ
Source:Arrays A1-A6
Formula:es × (1 - RH/100)
Reading:--
VPD
Vapour Pressure Deficit
--°C ⓘ
Source:Arrays A1-A6
Formula:Magnus
Reading:--
Dew Point
Air saturates below this temperature
-- ⓘ
Source:Arrays A1-A6, daily min/max
Formula:(T_max + T_min) / 2 - 5°C
T_max cap:30°C
Date:--
GDD
Growing Degree Days
-- ⓘ
Source:Arrays A1-A6, daily min/max
Formula:5°C - (T_max + T_min) / 2
Date:--
HDD
Heating Degree Days
Light
--μmol/s/m² ⓘ
Source:Flux Tower 40 m
Column:FT_40m_LI190
Reading:--
PAR at Canopy
Measured at 40 m
--μmol/s/m² ⓘ
Source:Flux Tower 20 m
Column:FT_20m_LI190
Reading:--
PAR Understory
Measured at 20 m
--% ⓘ
Formula:100 × PAR 20 m / PAR 40 m
Note:Daylight only
Reading:--
PAR Transmission
Light reaching understory
-- ⓘ
Formula:SW↑ / SW↓ at 40 m
Note:Daylight only
Reading:--
Albedo
Surface reflectance
Radiation Budget
--W/m² ⓘ
Column:FT_40m_SWUpper
SW ↓
Solar incoming
--W/m² ⓘ
Column:FT_40m_SWLower
SW ↑
Solar reflected
--W/m² ⓘ
Column:FT_40m_LWUpperCo
Note:Body-temp corrected
LW ↓
Sky longwave
--W/m² ⓘ
Column:FT_40m_LWLowerCo
Note:Body-temp corrected
LW ↑
Surface longwave
--W/m² ⓘ
Column:FT_40m_RsNet
SW net
SW↓ - SW↑
--W/m² ⓘ
Column:FT_40m_RlNet
LW net
LW↓ - LW↑
--W/m² ⓘ
Column:FT_40m_Rn
Rn
Net radiation
Hourly Trends

CO₂ by Array ⓘ
Source:C5MIN, hourly mean
Orange:eCO₂ - A1, A4, A6
Blue:aCO₂ - A2, A3, A5

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Air Temperature by Array ⓘ
Source:TAIR, hourly mean
Note:Flux tower probes faulty

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Humidity by Array ⓘ
Source:RH, hourly mean
Derived:H2O, BP, TAIR

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Wind Speed by Array ⓘ
Source:WS, hourly mean

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Wind Direction ⓘ
Source:WD and WS, hourly means (not gusts)
Petals:Direction the wind comes from
Length:Share of hours in the window
Shading:Wind speed band
Anemometers:A1, A4, A6 only. A3, A2, A5 share these

A1
A4
A6
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Solar Radiation ⓘ
Source:Flux Tower 40 m
Incoming:FT_40m_SWUpper
Reflected:FT_40m_SWLower

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PAR (Photosynthesis Light) ⓘ
Source:Flux Tower
40 m:FT_40m_LI190
20 m:FT_20m_LI190

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Net Radiation ⓘ
Source:Flux Tower 40 m
Rn:FT_40m_Rn
SW net:FT_40m_RsNet
LW net:FT_40m_RlNet

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