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Changelog

Unreleased

**Warning: settings file structure changed**

Due to changes in the structure of the file used to store settings on the logger CPU, it is essential that users upgrading from older program versions do a complete reset to default values before programming site-specific values.

Known Issues

  • Required actions after deployment
    • Reset program settings (or delete settings file from CPU drive) and re-program with correct site-specific values

Data Table Changes

  • Remove data table: 'stats30_ui'
  • Rename data table: 'stats5_ui' to 'stats5_srs'
  • Changes to 'stats_srs'
    • Add columns 'NDVI', 'PRI', 'alpha_NDVI', and 'alpha_PRI'
    • Rename 'dec_ndvi_up1' to 'incident_650nm'
    • Rename 'dec_ndvi_up2' to 'incident_810nm'
    • Add column 'NDVI_up_tilt'
    • Rename 'dec_ndvi_dn1' to 'reflected_650nm'
    • Rename 'dec_ndvi_dn2' to 'reflected_810nm'
    • Add column 'NDVI_dn_tilt'
    • Rename 'dec_pri_up1' to 'incident_531nm'
    • Rename 'dec_pri_up2' to 'incident_570nm'
    • Add column 'PRI_up_tilt'
    • Rename 'dec_pri_dn1' to 'reflected_531nm'
    • Rename 'dec_pri_dn2' to 'reflected_570nm'
    • Add column 'PRI_dn_tilt'
    • Remove column 'tblcalls_Tot'
  • Changes to 'extra_info'
    • Remove column 'Decagon_PRI_installed' (dup of 'Decagon_NDVI_installed')
    • Rename column 'Decagon_NDVI_installed' to 'Decagon_SRS_installed'

Enhancements

  • Transition back to conditional compilation for auxiliary sensors: Decagon NDVI/PRI radiometers, Los Gatos N2O/CO, Picarro CO2/CH4, Huskeflux soil heat flux plate
    • No longer produces empty tables if sensors are not used (solves problem with CardConvert halting for user interaction when empty tables are encountered, improving automation scripts)
    • Increase available recording time by not allocating space for sensors which are not used
  • Also use conditional compilation to enable/disable soil moisture probes; data tables are unchanged but if probes are disabled, only NANs are recorded instead of potentially misleading data
  • Re-implement the Decagon NDVI/PRI sensor group under production name, Spectral Reflectance Sensors (SRS), and expand implicit metadata
    • Rename columns following channel characteristics
    • Add missing columns corresponding to 'tilt' reading
    • Revise/add units
    • Derive NDVI and PRI from measurements
    • Fall back to parameter-based values if incident sensor provides bad value
    • Intentionally do not exclude sensor-reported values outside nominal range in 5-min means but do omit null values
    • But do omit out-of-bounds 5-min means when evaluating NDVI/PRI

Other Changes

  • New datalogger menu structure
    • previous top-level menu items are now under 'System Menu' submenu
    • previous 'Sensor Setup' submenu is now 'Settings' submenu
    • new submenu 'Initial Setup' contains options to enable/disable auxiliary sensors (described under Enhancements above)

20140616_MMTN

Other Changes

  • Revert PAR sensor signal input location back: DF 6 -> DF 5
  • Update MMTN datalogger serial number to reflect fact physical datalogger unit (S/N 6504) was exchanged with current spare (S/N 6506)

20140610_MMTN

Issues Fixed

  • Update sensitivity value for PAR sensor, which was exchanged May 6, 2014: previous sensor (Q45241) value 6.69 -> 6.03 of current sensor (Q45933)

Other Changes

  • Change input channel of PAR sensor (LI190SB) DF 5 -> DF 6; also add to ConstTable to facilitate in-field investigation/troubleshooting

20140217_XXXX

Other Changes

  • Remove reviewer-flag from program source code comments

20131018_XXXX

Issues Fixed

  • Remove duplicate suffix from column 'CO2_ppm_Avg_Avg' -> 'CO2_ppm_Avg'

Other Changes

  • Internally, change handling of sonic & IRGA diagnostic flags
  • Discard temperature and do not calculate volumetric water content if dielectric value from soil moisture probes is null ("NAN")

20131012_CFNT

Known Issues

  • Duplicate suffix column remains ('CO2_ppm_Avg_Avg')

Other Changes

  • Attempt to enable Los Gatos N2O/CO by editing default value within subroutine set_default_choices()

20130711_MSLK

Issues Fixed

  • Correct sonic azimuth 245 -> 254

Known Issues

  • Duplicate suffix column remains ('CO2_ppm_Avg_Avg')

20130619_MSLK

Issues Fixed

  • Correct array length declaration (4 -> 2) for variable dec_ndvi_up; this is a cosmetic fix

Known Issues

  • Sonic azimmuth is incorrectly specified as 245 instead of 254
  • Duplicate suffix column remains ('CO2_ppm_Avg_Avg')

Enhancements

  • Add site-specific values for new monitoring site in Moses Lake, WA
  • Move save confirmation within 'Sensor Setup' menu into submenu

Other Changes

  • When Decagon NDVI/PRI sensors are inactive, set data destinations to null values ("NAN") only once instead of each scan

20130507_XXXX

Issues Fixed

  • Increase number of records retained for 'site_info' table 1 -> 1000

Known Issues

  • Column has duplicated suffix ('CO2_ppm_Avg_Avg') in 'stats5/stats30' tables

Enhancements

  • New durable settings file used to track activation flags for Los Gatos N2O/CO, Picarro CO2/CH4, and new Decagon NDVI/PRI sensors, as well as scaling offsets and multipliers for Los Gatos & Picarro signals
  • Support for new Decagon NDVI/PRI light sensors

Wiring Changes

  • Remove Decagon 6-band radiometers from C5/G/12V
  • Add Decagon NDVI/PRI sensors to C5/G/12V

Data Table Changes

  • Removed tables:
    • stats5_6rad/stats30_6rad
    • tsdata_lgrn2oco/tsdata_picco2ch4
  • New tables:
    • tsdata_extra
      • output at 10 Hz
      • contains both LGR N2O/CO/H2O and Picarro CO2/CH4/H2O; if either is missing, associated columns will be null values ("NAN")
      • units for all columns are "scale-dependent"
    • stats5_ui/stats30_ui
      • output on 5- and 30-min intervals
      • contains 9 columns (averages of ndvi/pri|up/down and total # of calls to tables)
    • extra_info
      • output whenever settings change, up to 1000 records
      • tracks presence of Decagon NDVI/PRI, LGR N2O/CO and Picarro CO2/CH4 sensors, also multipliers/offsets for LGR & Picarro
    • diagnostics
      • output on 5-min intervals
      • contains number of total scans, skipped scans and watchdog errors
  • Changes to 'stats5/stats30'
    • Add soil heat flux and plate sensitivity (4 columns total), after soil moisture probes
  • Changes to 'site_daily'
    • Modify size from auto-allocate -> 60
    • Add min/max battery voltage and min/max temperature from T/RH probe
  • Changes to 'site_info'
    • FIX: increase number of records retained 1 -> 1000
    • Remove columns tracking presence of Decagon 6-band radiometers, LGR N2O/CO and Picarro CO2/CH4

Other Changes

  • Return fast & slow scan buffers 2 -> 1 min
  • Modify soil heat flux plate calibration interval 3 -> 6 hours
  • Acquire data from GPS receiver & soil moisture probes within soil heat flux plate scan (1/5 Hz) instead of 'slow' scan (1 Hz)
  • New menu "Sensor Setup" contains options to enable/disable Decagon NDVI/PRI, LGR N2O/CO, and Picarro CO2/CH4 sensors
  • Internally, fieldnames are promoted upwards to become variable names
  • Restore copyright notice

20130416_MMTN

This version has the Los Gatos analyzer channels enabled; it expects analog voltage signals for N2O, CO and H2O.

Known Issues

  • In 'stats5/stats30' data tables, rslt_wnd_dir is not adjusted for sonic's orientation; add the sonic azimuth value to recorded WD for correct WD
    • HOW FAR BACK DOES THIS GO
    • since now recording rslt_wnd_dir instead of saving wnd_dir_compass as that name, the lack of compensation is important, also it means previous program versions are unaffected

Enhancements

  • Add support H2O signal from Los Gatos (LGR) N2O/CO analyzer
    • Analog voltage input on DIFF 10
    • Units are mV, must be post-scaled to engineering units

Data Table Changes

  • Enable 'tsdata_lgrn2oco' table
  • Increase data type size of Obukhov length L from FP2 -> IEEE4

Other Changes

  • Activate the Los Gatos N2O/CO analyzer inputs
    • Current implentation requires program operate in SequentialMode instead of PipeLineMode
  • Increase flux (high-freq) scan and met (slow) scan buffers 1 -> 2 minutes
  • Revert secondary, slow scan interval 3 -> 1 sec
  • Simplify processing of resultant wind direction
    • Introduces error mentioned under Known Issues
    • Calculate directly into geo-compass (left-handed) instead of sensor (right-handed) coordinates
  • Soil heat flux related
    • Comment out data tables, measurement code & processing
    • Add framework for automatic activation based on logger serial number
    • Decrease scan frequency from 4 -> 5 seconds
    • Set sensitivity values to 0 if sensors are deactivated

20130123_CFNT

Issues Fixed

  • Change some variables' units:
    • rho_d_mean_hmp: kg/m^3 -> g/m^3
      Was introduced in version tagged 20120627_CFCT but never saved to data tables
    • nmbr_clock_change: samples -> occurrences
      Represents number of clock changes

Data Table Changes

  • Re-activated globally: stats5_hfp/stats30_hfp
  • Within site_daily, change units of nmbr_clock_change (see above)

Other Changes

  • Modify some scan intervals:
    • secondary, slow sensor scan: 1 -> 3 sec
    • heat flux plate scan: 4 -> 5 sec

20120827_XXXX

Data Table Changes

  • Deactivated globally: stats5_hfp/stats30_hfp
  • Split tsdata_gases into tsdata_lgrn2oco and tsdata_picco2ch4

Other Changes

  • Globally deactivate soil heat flux plate

20120824_LIND

Data Table Changes

  • Within stats5/stats30, change dielectric value column names and units
    • soil_5TM_ID*_epsilon -> soil_5TM_ID*_E
    • dimensionless -> dimless
  • Add columns to stats5_hfp/stats30_hfp: hfp1_samples_Tot, hfp2_samples_Tot, tblcalls_Tot
  • Add columns to stats5_6rad/stats30_6rad: tblcalls_Tot

Other Changes

  • Move soil heat flux plate to an independent secondary scan at 1/4 Hz
  • Reduce other slow scan buffer from 2 -> 1 min

20120810_LIND

Enhancements

  • Add support for measuring H2O from Picarro CH4/CO2/H2O analyzer on DIFF 13
  • Filter null values ("NAN") from data recorded to 'stats5_6rad/stats30_6rad'
  • Auxilary sensors 6-band radiometer (Decagon) and soil heat flux plate (Huskeflux) are now set on/off automatically based on site (logger S/N)

Wiring Changes

  • Optional Los Gatos Analyzer N2O/CO move from DF 10/11 to DF 8/9 respectively
  • RESERVED FUTURE Optional Los Gatos Analyzer H2O input on DF 10
  • Optional Picarro Analyzer CO2/CH4 move from DF 12/13 to 11/12 respectively
  • NEW Optional Picarro Analyser H2O input on DF 13

Data Table Changes

  • Remove data tables:

    • tsdata_n2o_co
    • stats5_n2o_co
    • stats30_n2o_co
    • tsdata_co2_ch4
    • stats5_co2_ch4
    • stats30_co2_ch4

  • Create data table: tsdata_gases

    • Records 10 Hz time series of N2O, CO from LGR analyzer & CO2, CH4, H2O from Picarro analyzer

  • Move columns from stats5_soil/stats30_soil to stats5/stats30: dielectric value, temperature, and volumetric water content from each of the five soil moisture probes

  • Rename data tables:

    • stats5_soil -> stats5_hfp
    • stats30_soil -> stats30_hfp

  • Remove column from site_info table: SENSOR_DEC_5TM

  • Rename columns in site_info table:

    • SENSOR_DEC_6RAD -> Dec_6rad_installed
    • SENSOR_LGR_N2OCO -> LGR_n2o_co_installed
    • SENSOR_PIC_CO2CH4 -> Pic_co2_ch4_installed
    • SENSOR_HFP01SC -> hfp_installed

  • Units changes

    • irga_uptime: ratio -> unity

Other Changes

  • Processing for 5- and 30-min data tables is substantially simplified
    • Processing based on 'min_uptime' values is removed entirely
    • Data tables are consolidated and inter-scan triggers used instead
    • No stats created for auxilary trace gas analyzers (LGR, Picarro)

20120727_LIND

This version is a stub branch of 20120220_CFNT

Data Table Changes

  • Increase size of 'site_info' table 1 -> 20 to allow to unintended restarts

Other Changes

  • Update auxilary sensors to match site
    • Deactivate Decagon 6-band radiometers
    • Deactivate Los Gatos N2O/CO
    • Activate soil heat flux plate
  • Add duplicate statements to end soil heat flux calibration interval

20120720_CFNT

  • Activate Los Gatos N2O/CO analyzer

20120720_CFCT

  • Activate Decagon 6-band radiometers

20120720_MMTN

  • Revert some soil heat flux plate calibration routine schedule changes
    • Increase routine interval 2 -> 3 hr
    • Increase start time into interval delay 10 -> 120 sec
    • Increase total routine runtime to 380 sec
  • Increase slow scan buffer 1 -> 2 min

20120711_MMTN

Other Changes

  • NEW monitoring site: Moscow Mountain Road (MMTN)
    • Sensor sensitivity values, sonic orientation, etc added
    • Soil heat flux plate (active at LIND) deactivated
  • Slow scan buffer increased from 3 -> 60 sec

20120705_LIND

Issues Fixed

  • Fix problem preventing soil heat flux plate data from being recorded if soil moisture probes were not activated

Data Table Changes

  • In table site_info, change data type of soil heat flux plate sensitivity from FP2 to IEEE4

Other Changes

  • Modify schedule of self-calibration routine of soil heat flux plates
    • Increase routine interval 3->2 hr
    • Reduce starting time into interval 60 -> 10 sec
    • Reduce heat-on time after start time 180 -> 20 sec
    • Change duration from heat-on+180s to start-time+190s

20120628_CFNT

Issues Fixed

  • Record null values ("NAN") instead of 0 if soil heat flux plates are not used

Other changes

  • Activate Los Gatos N2O/CO analyzer

20120627_CFCT

This version represents a lot of changes which means this entry is more likely than others to be less than comprehensive.

Enhancements

  • Site-specific sensitivity values for certain sensors are now automatically selected using datalogger's serial number when program is compiled.
  • Support for new auxilary sensors (not enabled by default)
    • Los Gatos N2O/CO analyzer, 2 analog voltage inputs, high-freq. sampling
    • Picarro CH4/CO2 analyzer, 2 analog voltage inputs, high-freq. sampling
    • Decagon soil moisture probes (5TM), 5 sensors
    • Huskeflux soil heat flux plates, 2 sensors

Known Issues

  • Disable flag for Picarro CO2/CH4 analyzer only checked for CO2=NAN, checked twice

Wiring Changes

Consult the reference sheet wiring_details.ods for details.

  • Cup & vane wind direction signal: SE 11 -> SE 1
  • NEW Picarro Fast CO2/CH4/H2O analyzer
    • CO2: DIFF 12
    • CH4: DIFF 13
  • SDI sensors including Decagon soil moisture probes and Decagon 6-band radiometers: C5, 12V, G
  • Soil heat flux plates (used in pairs) on: DF 6/7, SE 27/28, VX1, SW12-1, G

Data Table Changes

  • NEW data tables
    • site_info
      • Includes sonic_azimuth, RunSig, and ProgSig, moved from site_daily
      • Also contains site-specific metadata like clock offset from UTC, sensor sensitivity values, and flags indicating presence of auxilary instruments
    • stats5_soil/stats30_soil
      • For each probe measure: epsilon, dielectric permittivity; T, soil temperature; and VWC, volumetric water content calculated using the Topp equation
      • If soil heat flux plates are present, then soil heat flux and current sensitivity values
    • tsdata_co2_ch4, stats5_co2_ch4, stats30_co2_ch4
      • Analagous to tsdata_n2o_co, stats5_n2o_co, stats30_n2o_co
      • 5- and 30-min tables have mean and standard deviation of each scalar
      • Has "uptime" value too, which is # of non-NAN values over # scans

Other Changes

  • Remove base sensor set-related code from conditional compilation blocks
  • Remove code related to sensors not deployed at any REACCH site
  • Revise cup & vane WS sensor multiplier/offset: 0.799/0.2811 -> 0.7989/0.28
  • Add conditional so wind-speed adjustment is only applied when WS > 5 m/s
    • If no refererence is found for this, it may be tagged a 'known issue'

References

  • Decagon Devices. Dr. Topp. http://www.decagon.com/micro/dr-topp/.
    • Topp, G.C., J.L. David, and A.P. Annan 1980. Electromagnetic, Determination of Soil Water Content: Measurement in Coaxial Transmission Lines. Water Resources Research 16:3. p. 574-582.

20120601_LIND

Data Table Changes

  • Drop data tables tsdata_n2o_co, stats5_n2o_co and stats30_n2o_co since Los Gatos N2O/CO analyzer completely disabled

Other Changes

  • Comment out Los Gatos N2O/CO analyzer code

20120504_LIND

Issues Fixed

  • Corrected net radiometer and PAR sensor sensitivity values

Data Table Changes

  • Rename data tables
    • tsdata_extra -> tsdata_n2o_co
    • stats5_extra -> stats5_n2o_co
    • stats30_extra -> stats30_n2o_co
  • Changed units within tsdata_n2o_co table
    • lgr_n2o: ppm, dMR -> ppm
    • lgr_co: ppm, dMR -> ppm
  • Remove covariance terms from stats5_n2o_co and stats30_n2o_co tables

20120427_CFNT

Data Table Changes

  • NEW data tables stats5_6rad and stats30_6rad for Decagon radiometers

Other Changes

  • Add support for Decagon 6-band radiometers
    • Swapped sensor SDI addresses: up-facing is now 2, down-facing is 0
  • Disable Los Gatos N2O/CO analyzer
  • Verify net rad, PAR sensor sensitivity values are correct for CFNT site

20120420_LIND

Known Issues

  • Sensitivity values used for net radiometer and PAR sensor were incorrect, actually for CFNT sensor set, not LIND sensor set

Data Table Changes

  • New data tables
    • tsdata_extra: 10 Hz samples of N2O & CO
    • stats5_extra/stats30_extra: summary stats on 5- & 30-min intervals
      • Includes covariance between vertical wind speed & species conc but delay through sampling tube is not compensated for, therefore covariance values should be ignored

Other Changes

  • Add support for Los Gatos N2O/CO analyzer
    • Analog voltage input: N2O/DF 10, CO/DF 11
  • Reduce analog input voltage measurement integration time: _60Hz -> 250

20120330_CFNT

Incorporate changes from 20120323_LIND

20120323_LIND

Manually incorporates changes from 20120316_CFNT

Issues Fixed

  • Add missing type code suffix "_Med" to latitude and longitude

Data Table Changes

  • In daily data table,
    • Add missing type code suffix "_Med" to latitude and longitude
    • Remove average latitude, longitude, and magnetic_variation
    • Add median altitude (in addition to mean) since it presents more variance apparently

20120316_CFNT

Data Table Changes

  • In 5- & 30-min data tables rename Met1_wnd_dir to Met1_rslt_wnd_dir
  • In daily table
    • Change units for latitude/longitude from 'decimal degrees N/E' to 'decDegreesN/E' respectively
    • Add two columns RunSig and ProgSig

Other Changes

  • Specified sensitivity values for net radiometer, PAR sensor at CFNT site

20120309_LIND

This vesion was manually (imperfectly) merged against 20120215_CFNT.

Issues Fixed

  • Removed site code prefix from data tables
  • Correct data table reference; before this fix, since 20120215_CFNT, values from the T/RH probe recorded in 30-min data table were mistakenly duplicates of most recent 5-min period values.
  • Add missing units to CO2/H2O signal strength values in table 'tsdata'
  • Remove slowsequence disable flags from daily table to restore output

Data Tables

  • Renamed data tables:
    • CFNT_stats5 -> stats5
    • CFNT_stats30 -> stats30
    • CFNT_site_daily -> site_daily
    • CFNT_tsdata -> tsdata
  • Changed units for variables:
    • latitude_a: degrees -> degreesN
    • latitude_b: minutes -> minutesN
    • longitude_a: degrees -> degreesE
    • longitude_b: minutes -> minutesE
    • magnetic_variation: unitless -> degreesEofN
    • diag_sonic: arb -> bitmap
    • diag_irga: arb -> bitmap
  • Modify 5- & 30-min data tables:
    • Remove columns: Tc_Std, CO2_ppm_Std, H2O_g_kg_Std, hmp_uptime, Met1_uptime
    • Rename wnd_dir_compass to rslt_wnd_dir and move upward one column
  • Add median values to daily table of GPS-related data
    • latitude: decimal_degrees_N
    • longitude: decimal_degrees_E
    • magnetic_variation_Med: degreesEofN

Other Changes

  • Revert many tables & variables back to hidden
  • Simplify significantly the evaluation of sonic anemometer diagnostic word
  • Also simplify the evaluation of IRGA diagnostic word
  • Exclude negative values from PAR sensor

20120309_CFNT

This version is a stub branch of 20120224_LIND

Issues Fixed

  • Correct data table reference; before this fix, since 20120215_CFNT, values from the T/RH probe recorded in 30-min data table were mistakenly duplicates of most recent 5-min period values.

20120224_LIND

This version diverged from an earlier, unretained draft of 20120215_CFNT.

Known Issues

  • New sonic_uptime name incorrectly attached to wnd_dir_compass values while wnd_dir_compass name incorrectly reflects sonic_uptime values
  • Implementation of *_uptime variables may have been flawed, always indicating "1"

Issues Fixed

  • Update constant SITE_PRESS to 93.5 kPa (based on Dec 2011 - Feb 2012)
  • Fix cause of T_hmp being 0 and RH_hmp_Avg being "NAN", which was a missing GetRecord statement
  • In some instances, standard deviation of wind direction is reported zero, or site azimuth is recorded as wind direction because period lacked data and mean wind direction was reported zero. To resolve both, new value sonic_uptime tracks ratio (0-1) of good sonic records out of queries; when value < 0.5 then null values ("NAN") are recorded for wind stats
  • Use an irga_uptime analagous to sonic_uptime to set Xc/Xv to null value ("NAN") when irga_uptime < 0.5

Data Table Changes

  • Units are changed for several columns:
    • diag_sonic: arb -> bitmap
    • diag_irga: arb -> bitmap
    • CO2_sig_strgth: arb -> unity
    • H2O_sig_strgth: arb -> unity
  • Modify both 5- and 30-min tables by
    • Adding columns: sonic_uptime, CO2_ppm_Std, H2O_g_kg_Avg, H2O_g_kg_Std, amb_tmpr_Avg, irga_samples_Tot, irga_uptime, e_hmp_Avg, e_sat_hmp_Avg, hmp_uptime, Met1_uptime

Other Changes

  • Updated calibration constants to reflect LIND-specific sensors
    • net radiometer (NR-Lite2): 12.6
    • PAR sensor (LI190SB): 6.84
  • Modify multiplier used to value specified in user manual (0.799 -> 0.7989)
  • Redefine several variables as Public to facilitate troubleshooting
  • Modify behavior for cup & vane measurement QC
    • Change If WS=0.2811 Then WS=0 to If WS<=0.2811 Then WS=NAN
    • Change If WD>=360 Then WD=0 to If WD>=360 OR WD<0 Then WD=NAN

20120215_CFNT

Issues Fixed

  • Update constant SITE_PRESS to 93.5 kPa (based on Dec 2011 - Feb 2012)
  • Fix cause of T_hmp being 0 and RH_hmp_Avg being "NAN", which was a missing GetRecord statement
  • In some instances, standard deviation of wind direction is reported zero, or site azimuth is recorded as wind direction because period lacked data and mean wind direction was reported zero. To resolve both, new value sonic_uptime tracks ratio (0-1) of good sonic records out of queries; when value < 0.5 then null values ("NAN") are recorded for wind stats
  • Use an irga_uptime analagous to sonic_uptime to set Xc/Xv to null value ("NAN") when irga_uptime < 0.5

Data Table Changes

  • Units are changed for several columns:
    • diag_sonic: arb -> bitmap
    • diag_irga: arb -> bitmap
    • CO2_sig_strgth: arb -> unity
    • H2O_sig_strgth: arb -> unity
  • Change both "CFNT_stats5" and "CFNT_stats30" tables by
    • Adding columns: sonic_uptime, CO2_ppm_Avg, H2O_g_kg_Avg, amb_tmpr_Avg, irga_uptime, e_hmp_Avg, e_sat_hmp_Avg
    • Removing columns: Tc_Std, sonic_samples_Tot
  • Simplify daily GPS-related data table by removing standard deviation values

Other Changes

  • Modify multiplier used to value specified in user manual (0.799 -> 0.7989)
  • Redefine several variables as Public to facilitate troubleshooting
  • Modify behavior for cup & vane measurement QC
    • Change If WS=0.2811 Then WS=0 to If WS<=0.2811 Then WS=NAN
    • Change If WD>=360 Then WD=0 to If WD>=360 OR WD<0 Then WD=NAN

20120210_CFNT

Issues Fixed

  • Change cup & vane wind statistic output type set from 0->2 to match the type set output using sonic anemometer data
  • Use correct temperature when calculating Monin-Obukhov Length
  • Add back-end required for correct 5-min data table calculations
  • Remove erroreous mixing ratio values co2_mix_ratio and h2o_mix_ratio, use Xc and Xv instead, respectively

Data Table Changes

  • Rename data tables:
    • "CFNT_met_5min" to "CFNT_stats5"
    • "flux" to "CFNT_stats30"
    • "ts_data" to "CFNT_tsdata"
  • NEW data table "CFNT_site_daily" with GPS-related data, on 24hr output
  • Modify 10 Hz table by removing columns: co2_molar_density, h2o_molar_density
  • Modify both 5- & 30-min summary table structure
    • Column order changes significantly, see data_table_key.ods for details
    • Remove columns: Hs, latitude_a, latitude_b, longitue_a, longitude_b, magnetic_variation, altitude, max_clock_change, nmbr_clock_change
    • Add columns: tau, Xc as CO2_ppm_Avg
    • Rename columns: Ts_stdev to Ts_Std, Tc_mean to Tc_Avg, Tc_stdev to Tc_Std, Uz_stdev to Uz_Std, CO2_mean to CO2_mg_m3_Avg, H2O_mean to H2O_g_m3_Avg, CO2_stdev to CO2_mg_m3_Std, H2O_stdev to H2O_g_m3_Std, CO2_sig_srgth to CO2_signal_Avg, H2O_sig_strgth to H2O_signal_Avg, amb_press_mean to amb_press_Avg, T_hmp_mean to T_hmp_Avg, RH_hmp_mean to RH_hmp_Avg
    • Change data types of Rn and Rn_meas from IEEE4 to FP2
    • Explicitly exclude null values ("NAN") when evaluating PAR sensor, cup & vane, and rain tipping bucket data
  • Further modify the 30-min table by
    • Removing these columns:
      • covariance values
      • ambient air density, rho_a_mean
      • component parts of flux calculations (raw covariance and both WPL terms)
      • diagnostic bits for IRGA (EC150)
      • some values from T/RH probe: e_hmp_mean, e_sat_hmp_mean, H2O_hmp_mean, rho_a_mean_hmp
      • GPS-related values
    • And renaming these: l to L, par_totflx to PAR_totflx, par_flxdens to PAR_flxdens,
    • Additionally, change wind stat calculation type for cup & vane
      • mean horizontal wind speed: 034b_ws renamed to Met1_wnd_spd
      • unit vector mean wind direction: 034b_wd, removed
      • standard deviation of wind direction via Yamartino algorithm: 034b_stdwd, removed
      • mean wind vector magnitude: Met1_rslt_wnd_spd, added
      • resultant mean wind direction: Met1_wnd_dir, added
      • standard deviation of wind direction via Campbell Scientific algorithm: Met1_std_wnd_dir, added

Other Changes

  • Auto-allocate space on memory cards, effectively use all available space
  • Disable the 'System Control' menu since instrument suite is static
  • Save processing time by changing net rad. measurement from AutoRange to 20mV
  • Disable both Los Gatos N2O/CO and Picarro CH4/CO2 analyzers
  • Comment out superfluous code

20120204_CFNT

Issues Fixed

  • Add units "m" for meter to Monin-Obukhov Length (L)

Known Issues

  • New 5-min data table lacks back-end infrastructure to yield correct results

Data Table Changes

  • NEW data table "CFNT_met_5min" with select subset of values in the "flux" table on a 5-min instead of half-hour basis.
  • Change variable names:
    • l to L
    • par_mV to PAR_mV
    • par_flxdens to PAR_flxdens
    • par_totflx to PAR_totflx

20111121_LIND

This is a stub branch of 20111101_CFNT

This is the first release deployed at the Lind, WA site.

Site-specific Changes

  • Update net radiometer sensitivity value
  • Update PAR sensor sensitivity value

20111101_CFNT

This release aggregates change made over three distinct deployed versions. The intermediate work is unrecoverable.

Other Changes

  • Add support for Los Gatos N2O/CO analyzer and Picarro CH4/CO2 analyzer but leave not enabled
  • Remove support for ATI sonic anemometer, which had been disabled anyway
  • Remove cruft associated with unused sensors

20111011_CFNT

This release aggregates changes made over three distinct deployed versions. The intermediate work is unrecoverable.

Issues fixed

  • Change UTC offset from Central Standard (-6) to Pacific Standard (-8) The precise time this change occurred has not been determined, though it may possibly be deduced from collected data.
  • Introduce 4 diagnostic flags for ATI sonic anemometer, one per data value Previous parsing method only retained final flag (Ts value)
  • Temperature is now treated correctly in calculation of Xc and Xv

Known Issues

  • Variable ati_azimuth is declared twice and units are misspelled ("degress")
  • Monin-Obukhov Length (L) is calculated using the variable Tc_mean, which is the mean "corrected" temperature from the CSAT3 sonic anemometer during the last processed half-hour period (30-60m prior), not the most recent half-hour period.
  • Incorrect temperature is used when calculating CO2_li_um_m, H2O_li_um_m. This mimics an earlier fix which, in this context, is an error.

Data Table Changes

  • Fast time series: ts_data
    • Add inst. molar density and mixing ratio of CO2 & H2O (co2_molar_density, h2o_molar_density) (present but commented out: CO2_mix_ratio, H2O_mix ratio)
    • Added but not enabled:
      • Instantaneous U/V/W/Ts from ATI sonic (atiUx, atiUy, atiUz, atiTs)
  • Half-hour statistics: flux
    • Add Monin-Obukhov length (L) See note under Known Issues
    • Remove naive mean of WS for cup & vane (WS_ms)
    • Add field names and units to mean WS/WD, WD stdev for cup & vane (034b_ws, 034b_wd, 034b_stdwd)
    • Added but not enabled:
      • ATI sonic azimuth (ati_azimuth)
      • mean WS, mean WD, WD stdev, mean U/V/W/Ts for ATI sonic (ati_ws, ati_wd, ati_stdwd, atiUavg, atiVavg, atiWavg, atitmpavg)

Other Changes

  • ATI sonic anemometer
    • Do not open com port at start-up (no real change since not enabled)
    • Move input from COM1 to COM3
    • Calculate instanteous WS/WD for use in half-hour table stats
  • Soil heat flux plates
    • Reduce number of soil heat flux plates from 4 -> 2
    • Add actual sensor-specific sensitivity values
  • Cup & vane wind sensor
    • Change wind speed units from "meters/second" -> "m/s"

20110819_CFNT

  • Initial version deployed
  • Modified from original work by Campbell Scientific to also record data from Applied Technology Inc (ATI) sonic anemometer

Known Issues

  • Wrong time zone specified: Central Standard (-6) not Pacific Standard (-8)
  • Only final ATI diagnostic word retained, first three are discarded
  • Temperature incorrectly subjected to unit conversion in calculation of Xc and Xv