DQRs for Session: 123623 User:palm1osCompleted: 10-12-2009

Data Quality Reports for Session: 123623 User: palm1os Completed: 10/12/2009

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D000225.4	SGP/EBBR - EBBR E18 Right Humidity Incorrect	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D000225.5	SGP/EBBR - EBBR E18 Data Incorrect After Lightning Strike	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D000225.6	SGP/EBBR - EBBR E18 Much Data Missing After Lightning Strike	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D000301.4	SGP/EBBR - EBBR E18 Net Radiation Incorrect	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D010213.4	SGP/EBBR/E18 - EBBR E18 Wind Speed Iced	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D010213.5	SGP/EBBR/E18 - EBBR E18 Wind Speed Iced	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D010416.10	SGP/EBBR/E18 - E18 EBBR Data Incorrect	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D010416.11	SGP/EBBR/E18 - E18 EBBR Right RH Incorrect	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D010416.12	SGP/EBBR/E18 - E18 EBBR Thum Right Incorrect	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D010416.8	SGP/EBBR/E18 - E18 EBBR Data Incorrect	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D010416.9	SGP/EBBR/E18 - E18 EBBR Data Incorrect	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D010427.1	SGP EBBR E18 - E18 EBBR Wind Direction Frozen	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D010427.2	SGP EBBR E18 - E18 EBBR Wind Direction Frozen	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D010427.3	SGP EBBR E18 - E18 EBBR Left Ventilator Fan Not Working	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D011127.29	SGP EBBR E18 - E18 EBBR Data Incorrect During 6 Month Checks	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D011218.5	SGP EBBR E18 - E18 EBBR AEM Frozen, Data Incorrect	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D011218.6	SGP EBBR E18 - E18 EBBR Wind Direction Frozen, Data Incorrect	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D011218.7	SGP EBBR E18 - E18 EBBR Wind Speed Frozen, Data Incorrect	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D011218.8	SGP EBBR E18 - E18 EBBR Right RH Incorrect	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D020716.14	SGP/EBBR/E18 - 6 Month Checks	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D020717.21	SGP/EBBR/E18 - AEM Hung	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D020717.24	SGP/EBBR/E18 - Left Air Temperature Incorrect	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D020717.25	SGP/EBBR/E18 - Reference Temperature Incorrect	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D030110.23	SGP/EBBR/E18 - Data Incorrect during 6 month checks	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D030115.12	SGP/EBBR/E18 - Data Mostly Zero Following Logger Restart	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D030711.22	SGP/EBBR/E18 - AEM Hung	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D030712.19	SGP/EBBR/E18 - 6 Month Checks	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D030919.9	SGP/EBBR/E18 - Water in Net Radiometer; Surface Fluxes are Incorrect	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D031204.16	SGP/EBBR/E18 - 6 Month Checks	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D040206.1	SGP/EBBR/E18 - AEM Sitting At Home 15 Position	sgp15ebbrE18.b1, sgp30baebbrE18.c1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D040304.17	SGP/EBBR/E18 - Wind Speed Frozen Stopped By Ice	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D041222.14	SGP/EBBR/E18 - 6 Month Checks	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D050206.12	SGP/EBBR/E18 - Wind Speed Frozen Stopped By Ice Storm	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D050207.8	SGP/EBBR/E18 - Wind Direction Frozen Stopped By Ice Storm	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D051106.10	SGP/EBBR/E18 - Net Radiation Incorrect; Sensible and Latent Heat Fluxes Incorrect	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D051111.13	SGP/EBBR/E18 - metadata corrections	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D060501.17	SGP/EBBR/E18 - Wind Speed Zero	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D060818.6	SGP/EBBR/E18 - Sensible and Latent Heat Fluxes and Net Radiation Incorrect	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
D080424.1	SGP/EBBR/E18 - Soil Heat Flow #4 Offscale Low; Sensible and Latent Heat Flux Sometimes Incorrect	sgp15ebbrE18.b1, sgp30ebbrE18.b1
D080702.2	SGP/EBBR/E18 - SHF #4 Measurements Too Low; Sensible and Latent Heat Fluxes Suspect	sgp15ebbrE18.b1, sgp30ebbrE18.b1
D090313.3	SGP/EBBR/E18 - Wind Speed Incorrect	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1

DQRID : D000225.4

Start Date	Start Time	End Date	End Time
12/03/1999	0545	01/11/2000	2135

Subject:	SGP/EBBR - EBBR E18 Right Humidity Incorrect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	After the 3 December 99 lightning strike, the humidity portion of the right T/RH probe drifted downwards at times, causing vapor pressure gradients to be incorrectly measured. Therefore, sensible and latent heat fluxes were also incorrect. Since much of the data from the period is missing (because of latent effects of the lightning strike), little data is actually affected. The affected data values were: 5 minute: hum_top, hum_bot, vp_top, vp_bot 15 minute: mv_hum_r 30 minute: hum_top, hum_bot, vp_top, vp_bot, bowen, h, e
Measurements:	sgp5ebbrE18.b1: rh_bottom_fraction vapor_pressure_bottom vapor_pressure_top rh_top_fraction sgp30ebbrE18.b1: rh_top_fraction bowen_ratio latent_heat_flux rh_bottom_fraction vapor_pressure_bottom sensible_heat_flux vapor_pressure_top sgp15ebbrE18.b1: rh_right_mv

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DQRID : D000225.5

Start Date	Start Time	End Date	End Time
12/03/1999	0535	12/03/1999	0600

Subject:	SGP/EBBR - EBBR E18 Data Incorrect After Lightning Strike
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	Immediately after the 3 December 99 lightning strike, all data from this EBBR system was incorrect. The system crashed at the end of this period.
Measurements:	sgp5ebbrE18.b1: Dummy altitude for Zeb(alt) home_signal base time(base_time) Time offset of tweaks from base_time(time_offset) vapor_pressure_bottom rh_top_fraction wspd_arith_mean lat(lat) wspd_vec_mean temp_trh_top rh_bottom_fraction temp_reference temp_air_top wdir_vec_std temp_trh_bottom wdir_vec_mean vapor_pressure_top net_radiation Barometric Pressure(atmos_pressure) temp_air_bottom lon(lon) sgp30ebbrE18.b1: net_radiation latent_heat_flux base time(base_time) home_signal_15 wspd_vec_mean home_signal_30 soil_heat_capacity_1 corr_soil_heat_flow_5 surface_soil_heat_flux_4 soil_moisture_1 soil_moisture_2 wdir_vec_std vapor_pressure_top bowen_ratio surface_soil_heat_flux_5 wspd_arith_mean surface_soil_heat_flux_3 surface_soil_heat_flux_avg soil_heat_flow_5 corr_soil_heat_flow_3 soil_temp_1 energy_storage_change_4 lon(lon) corr_soil_heat_flow_4 soil_temp_2 soil_moisture_3 rh_top_fraction soil_moisture_5 soil_temp_5 soil_temp_4 soil_temp_3 energy_storage_change_3 energy_storage_change_5 Barometric Pressure(atmos_pressure) surface_soil_heat_flux_2 lat(lat) Dummy altitude for Zeb(alt) corr_soil_heat_flow_2 temp_air_top surface_soil_heat_flux_1 energy_storage_change_2 energy_storage_change_1 temp_air_bottom corr_soil_heat_flow_1 wdir_vec_mean soil_heat_flow_4 temp_trh_top Time offset of tweaks from base_time(time_offset) soil_moisture_4 soil_heat_flow_3 rh_bottom_fraction soil_heat_capacity_2 temp_reference soil_heat_flow_1 sensible_heat_flux soil_heat_capacity_3 soil_heat_capacity_4 soil_heat_flow_2 soil_heat_capacity_5 vapor_pressure_bottom temp_trh_bottom sgp15ebbrE18.b1: soil_heat_flow_1_mv soil_temp_1_rr lat(lat) rh_right_mv net_radiation_mv temp_air_right wspd_arith_mean temp_air_left soil_temp_3_rr temp_reference_rr soil_moisture_4_r soil_temp_5_rr soil_temp_2_rr rh_left_mv soil_heat_flow_5_mv soil_temp_4_rr atmos_pressure_mv base time(base_time) soil_moisture_2_r soil_moisture_5_r wdir_vec_mean_mv temp_trh_right_rr soil_heat_flow_3_mv Dummy altitude for Zeb(alt) lon(lon) soil_heat_flow_2_mv soil_heat_flow_4_mv soil_moisture_3_r soil_moisture_1_r home_signal temp_trh_left_rr Time offset of tweaks from base_time(time_offset) battery_voltage

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DQRID : D000225.6

Start Date	Start Time	End Date	End Time
12/03/1999	0535	02/14/2000	0915

Subject:	SGP/EBBR - EBBR E18 Much Data Missing After Lightning Strike
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	On 3 December 99 this EBBR system was struck by lightning. Much of the data from this EBBR system for the stated period is missing.
Measurements:	sgp5ebbrE18.b1: Dummy altitude for Zeb(alt) home_signal base time(base_time) Time offset of tweaks from base_time(time_offset) vapor_pressure_bottom rh_top_fraction wspd_arith_mean lat(lat) wspd_vec_mean temp_trh_top rh_bottom_fraction temp_reference temp_air_top wdir_vec_std temp_trh_bottom wdir_vec_mean vapor_pressure_top net_radiation Barometric Pressure(atmos_pressure) temp_air_bottom lon(lon) sgp30ebbrE18.b1: net_radiation latent_heat_flux base time(base_time) home_signal_15 wspd_vec_mean home_signal_30 soil_heat_capacity_1 corr_soil_heat_flow_5 surface_soil_heat_flux_4 soil_moisture_1 soil_moisture_2 wdir_vec_std vapor_pressure_top bowen_ratio surface_soil_heat_flux_5 wspd_arith_mean surface_soil_heat_flux_3 surface_soil_heat_flux_avg soil_heat_flow_5 corr_soil_heat_flow_3 soil_temp_1 energy_storage_change_4 lon(lon) corr_soil_heat_flow_4 soil_temp_2 soil_moisture_3 rh_top_fraction soil_moisture_5 soil_temp_5 soil_temp_4 soil_temp_3 energy_storage_change_3 energy_storage_change_5 Barometric Pressure(atmos_pressure) surface_soil_heat_flux_2 lat(lat) Dummy altitude for Zeb(alt) corr_soil_heat_flow_2 temp_air_top surface_soil_heat_flux_1 energy_storage_change_2 energy_storage_change_1 temp_air_bottom corr_soil_heat_flow_1 wdir_vec_mean soil_heat_flow_4 temp_trh_top Time offset of tweaks from base_time(time_offset) soil_moisture_4 soil_heat_flow_3 rh_bottom_fraction soil_heat_capacity_2 temp_reference soil_heat_flow_1 sensible_heat_flux soil_heat_capacity_3 soil_heat_capacity_4 soil_heat_flow_2 soil_heat_capacity_5 vapor_pressure_bottom temp_trh_bottom sgp15ebbrE18.b1: soil_heat_flow_1_mv soil_temp_1_rr lat(lat) rh_right_mv net_radiation_mv temp_air_right wspd_arith_mean temp_air_left soil_temp_3_rr temp_reference_rr soil_moisture_4_r soil_temp_5_rr soil_temp_2_rr rh_left_mv soil_heat_flow_5_mv soil_temp_4_rr atmos_pressure_mv base time(base_time) soil_moisture_2_r soil_moisture_5_r wdir_vec_mean_mv temp_trh_right_rr soil_heat_flow_3_mv Dummy altitude for Zeb(alt) lon(lon) soil_heat_flow_2_mv soil_heat_flow_4_mv soil_moisture_3_r soil_moisture_1_r home_signal temp_trh_left_rr Time offset of tweaks from base_time(time_offset) battery_voltage

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DQRID : D000301.4

Start Date	Start Time	End Date	End Time
09/21/1999	1330	09/22/1999	0300

Subject:	SGP/EBBR - EBBR E18 Net Radiation Incorrect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The net radiometer top dome was broken and water had entered. Net radiation values are therefore incorrect during the period. The affected data are: 5 minute: q 15 minute: mv_q 30 minute: q, h, e
Measurements:	sgp5ebbrE18.b1: net_radiation sgp30ebbrE18.b1: net_radiation latent_heat_flux sensible_heat_flux sgp15ebbrE18.b1: net_radiation_mv

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DQRID : D010213.4

Start Date	Start Time	End Date	End Time
12/11/2000	0930	12/15/2000	0245

Subject:	SGP/EBBR/E18 - EBBR E18 Wind Speed Iced
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The anemometer was frozen stopped by freezing rain. Indicated data is incorrect.
Measurements:	sgp5ebbrE18.b1: wspd_arith_mean wspd_vec_mean sgp30ebbrE18.b1: wspd_arith_mean wspd_vec_mean sgp15ebbrE18.b1: wspd_arith_mean

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DQRID : D010213.5

Start Date	Start Time	End Date	End Time
12/25/2000	2015	01/03/2001	1915

Subject:	SGP/EBBR/E18 - EBBR E18 Wind Speed Iced
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The anemometer was frozen stopped by freezing rain. Indicated data is incorrect.
Measurements:	sgp5ebbrE18.b1: wspd_arith_mean wspd_vec_mean sgp30ebbrE18.b1: wspd_arith_mean wspd_vec_mean sgp15ebbrE18.b1: wspd_arith_mean

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DQRID : D010416.10

Start Date	Start Time	End Date	End Time
09/19/2000	2115	09/19/2000	2131

Subject:	SGP/EBBR/E18 - E18 EBBR Data Incorrect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The EBBR data was incorrect during maintenance.
Measurements:	sgp5ebbrE18.b1: Dummy altitude for Zeb(alt) home_signal rh_top_fraction vapor_pressure_bottom wspd_arith_mean wspd_vec_mean temp_trh_top rh_bottom_fraction temp_reference temp_air_top temp_trh_bottom wdir_vec_std wdir_vec_mean vapor_pressure_top net_radiation Barometric Pressure(atmos_pressure) temp_air_bottom sgp30ebbrE18.b1: net_radiation latent_heat_flux home_signal_15 wspd_vec_mean home_signal_30 soil_heat_capacity_1 corr_soil_heat_flow_5 surface_soil_heat_flux_4 soil_moisture_1 soil_moisture_2 wdir_vec_std vapor_pressure_top bowen_ratio surface_soil_heat_flux_5 wspd_arith_mean surface_soil_heat_flux_3 surface_soil_heat_flux_avg soil_heat_flow_5 corr_soil_heat_flow_3 soil_temp_1 energy_storage_change_4 corr_soil_heat_flow_4 soil_moisture_3 soil_temp_2 rh_top_fraction soil_moisture_5 soil_temp_5 soil_temp_4 soil_temp_3 energy_storage_change_3 energy_storage_change_5 Barometric Pressure(atmos_pressure) surface_soil_heat_flux_2 temp_air_top corr_soil_heat_flow_2 surface_soil_heat_flux_1 energy_storage_change_1 energy_storage_change_2 temp_air_bottom corr_soil_heat_flow_1 wdir_vec_mean soil_heat_flow_4 temp_trh_top soil_moisture_4 soil_heat_flow_3 rh_bottom_fraction soil_heat_capacity_2 temp_reference soil_heat_flow_1 sensible_heat_flux soil_heat_capacity_3 soil_heat_capacity_4 soil_heat_flow_2 soil_heat_capacity_5 vapor_pressure_bottom temp_trh_bottom sgp15ebbrE18.b1: soil_heat_flow_1_mv soil_temp_1_rr rh_right_mv net_radiation_mv temp_air_right wspd_arith_mean temp_air_left soil_temp_3_rr temp_reference_rr soil_moisture_4_r soil_temp_5_rr soil_temp_2_rr rh_left_mv soil_heat_flow_5_mv soil_temp_4_rr atmos_pressure_mv soil_moisture_2_r soil_moisture_5_r wdir_vec_mean_mv temp_trh_right_rr soil_heat_flow_3_mv soil_heat_flow_2_mv soil_heat_flow_4_mv soil_moisture_3_r soil_moisture_1_r home_signal temp_trh_left_rr battery_voltage

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DQRID : D010416.11

Start Date	Start Time	End Date	End Time
02/01/2000	0000	04/04/2000	2131

Subject:	SGP/EBBR/E18 - E18 EBBR Right RH Incorrect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	Right RH being incorrect caused a number of calculated measurements to be incorrect also, including Bowen ratio, and latent and sensible heat fluxes.
Measurements:	sgp5ebbrE18.b1: rh_bottom_fraction rh_top_fraction vapor_pressure_top vapor_pressure_bottom sgp30ebbrE18.b1: bowen_ratio rh_top_fraction latent_heat_flux sensible_heat_flux rh_bottom_fraction vapor_pressure_bottom vapor_pressure_top sgp15ebbrE18.b1: temp_trh_right_rr rh_right_mv

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DQRID : D010416.12

Start Date	Start Time	End Date	End Time
03/21/2000	2300	04/04/2000	2131

Subject:	SGP/EBBR/E18 - E18 EBBR Thum Right Incorrect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The temperature portion of the right T/RH probe was not working. Calculated vapor pressure, Bowen ratio, and sensible and latent heat fluxes were also incorrect.
Measurements:	sgp5ebbrE18.b1: temp_trh_bottom temp_trh_top vapor_pressure_bottom vapor_pressure_top sgp30ebbrE18.b1: bowen_ratio latent_heat_flux temp_trh_top vapor_pressure_bottom sensible_heat_flux temp_trh_bottom vapor_pressure_top sgp15ebbrE18.b1: temp_trh_right_rr

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DQRID : D010416.8

Start Date	Start Time	End Date	End Time
04/18/2000	2100	04/18/2000	2101

Subject:	SGP/EBBR/E18 - E18 EBBR Data Incorrect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The EBBR data was incorrect while the datalogger was being upgraded/replaced.
Measurements:	sgp5ebbrE18.b1: Dummy altitude for Zeb(alt) home_signal rh_top_fraction vapor_pressure_bottom wspd_arith_mean wspd_vec_mean temp_trh_top rh_bottom_fraction temp_reference temp_air_top temp_trh_bottom wdir_vec_std wdir_vec_mean vapor_pressure_top net_radiation Barometric Pressure(atmos_pressure) temp_air_bottom sgp30ebbrE18.b1: net_radiation latent_heat_flux home_signal_15 wspd_vec_mean home_signal_30 soil_heat_capacity_1 corr_soil_heat_flow_5 surface_soil_heat_flux_4 soil_moisture_1 soil_moisture_2 wdir_vec_std vapor_pressure_top bowen_ratio surface_soil_heat_flux_5 wspd_arith_mean surface_soil_heat_flux_3 surface_soil_heat_flux_avg soil_heat_flow_5 corr_soil_heat_flow_3 soil_temp_1 energy_storage_change_4 corr_soil_heat_flow_4 soil_moisture_3 soil_temp_2 rh_top_fraction soil_moisture_5 soil_temp_5 soil_temp_4 soil_temp_3 energy_storage_change_3 energy_storage_change_5 Barometric Pressure(atmos_pressure) surface_soil_heat_flux_2 temp_air_top corr_soil_heat_flow_2 surface_soil_heat_flux_1 energy_storage_change_1 energy_storage_change_2 temp_air_bottom corr_soil_heat_flow_1 wdir_vec_mean soil_heat_flow_4 temp_trh_top soil_moisture_4 soil_heat_flow_3 rh_bottom_fraction soil_heat_capacity_2 temp_reference soil_heat_flow_1 sensible_heat_flux soil_heat_capacity_3 soil_heat_capacity_4 soil_heat_flow_2 soil_heat_capacity_5 vapor_pressure_bottom temp_trh_bottom sgp15ebbrE18.b1: soil_heat_flow_1_mv soil_temp_1_rr rh_right_mv net_radiation_mv temp_air_right wspd_arith_mean temp_air_left soil_temp_3_rr temp_reference_rr soil_moisture_4_r soil_temp_5_rr soil_temp_2_rr rh_left_mv soil_heat_flow_5_mv soil_temp_4_rr atmos_pressure_mv soil_moisture_2_r soil_moisture_5_r wdir_vec_mean_mv temp_trh_right_rr soil_heat_flow_3_mv soil_heat_flow_2_mv soil_heat_flow_4_mv soil_moisture_3_r soil_moisture_1_r home_signal temp_trh_left_rr battery_voltage

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DQRID : D010416.9

Start Date	Start Time	End Date	End Time
07/28/2000	1730	07/28/2000	1731

Subject:	SGP/EBBR/E18 - E18 EBBR Data Incorrect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The EBBR data was incorrect just after power was restored.
Measurements:	sgp5ebbrE18.b1: Dummy altitude for Zeb(alt) home_signal rh_top_fraction vapor_pressure_bottom wspd_arith_mean wspd_vec_mean temp_trh_top rh_bottom_fraction temp_reference temp_air_top temp_trh_bottom wdir_vec_std wdir_vec_mean vapor_pressure_top net_radiation Barometric Pressure(atmos_pressure) temp_air_bottom sgp30ebbrE18.b1: net_radiation latent_heat_flux home_signal_15 wspd_vec_mean home_signal_30 soil_heat_capacity_1 corr_soil_heat_flow_5 surface_soil_heat_flux_4 soil_moisture_1 soil_moisture_2 wdir_vec_std vapor_pressure_top bowen_ratio surface_soil_heat_flux_5 wspd_arith_mean surface_soil_heat_flux_3 surface_soil_heat_flux_avg soil_heat_flow_5 corr_soil_heat_flow_3 soil_temp_1 energy_storage_change_4 corr_soil_heat_flow_4 soil_moisture_3 soil_temp_2 rh_top_fraction soil_moisture_5 soil_temp_5 soil_temp_4 soil_temp_3 energy_storage_change_3 energy_storage_change_5 Barometric Pressure(atmos_pressure) surface_soil_heat_flux_2 temp_air_top corr_soil_heat_flow_2 surface_soil_heat_flux_1 energy_storage_change_1 energy_storage_change_2 temp_air_bottom corr_soil_heat_flow_1 wdir_vec_mean soil_heat_flow_4 temp_trh_top soil_moisture_4 soil_heat_flow_3 rh_bottom_fraction soil_heat_capacity_2 temp_reference soil_heat_flow_1 sensible_heat_flux soil_heat_capacity_3 soil_heat_capacity_4 soil_heat_flow_2 soil_heat_capacity_5 vapor_pressure_bottom temp_trh_bottom sgp15ebbrE18.b1: soil_heat_flow_1_mv soil_temp_1_rr rh_right_mv net_radiation_mv temp_air_right wspd_arith_mean temp_air_left soil_temp_3_rr temp_reference_rr soil_moisture_4_r soil_temp_5_rr soil_temp_2_rr rh_left_mv soil_heat_flow_5_mv soil_temp_4_rr atmos_pressure_mv soil_moisture_2_r soil_moisture_5_r wdir_vec_mean_mv temp_trh_right_rr soil_heat_flow_3_mv soil_heat_flow_2_mv soil_heat_flow_4_mv soil_moisture_3_r soil_moisture_1_r home_signal temp_trh_left_rr battery_voltage

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DQRID : D010427.1

Start Date	Start Time	End Date	End Time
12/11/2000	1000	12/13/2000	1701

Subject:	SGP EBBR E18 - E18 EBBR Wind Direction Frozen
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The wind direction sensor was frozen stopped. The indicated measurements are incorrect as a result.
Measurements:	sgp5ebbrE18.b1: wdir_vec_mean wdir_vec_std wspd_vec_mean sgp30ebbrE18.b1: wdir_vec_mean wspd_vec_mean wdir_vec_std sgp15ebbrE18.b1: wdir_vec_mean_mv

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DQRID : D010427.2

Start Date	Start Time	End Date	End Time
12/26/2000	1330	12/29/2000	1901

Subject:	SGP EBBR E18 - E18 EBBR Wind Direction Frozen
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The wind direction sensor was frozen stopped. The indicated measurements are incorrect as a result.
Measurements:	sgp5ebbrE18.b1: wdir_vec_mean wdir_vec_std wspd_vec_mean sgp30ebbrE18.b1: wdir_vec_mean wspd_vec_mean wdir_vec_std sgp15ebbrE18.b1: wdir_vec_mean_mv

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DQRID : D010427.3

Start Date	Start Time	End Date	End Time
09/12/2000	0015	09/19/2000	2101

Subject:	SGP EBBR E18 - E18 EBBR Left Ventilator Fan Not Working
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The left ventilator fan was not working. Some of the indicated measurements may be incorrect (under some wind speed and direction conditions, cloud cover, and time of day, some of the data may be correct). The data is therefore described as suspect for the indicated period.
Measurements:	sgp5ebbrE18.b1: rh_bottom_fraction temp_trh_top vapor_pressure_bottom vapor_pressure_top rh_top_fraction temp_air_top temp_air_bottom temp_trh_bottom sgp30ebbrE18.b1: bowen_ratio rh_top_fraction latent_heat_flux temp_air_top sensible_heat_flux temp_air_bottom rh_bottom_fraction temp_trh_top vapor_pressure_bottom temp_trh_bottom vapor_pressure_top sgp15ebbrE18.b1: temp_trh_left_rr temp_air_left rh_left_mv

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DQRID : D011127.29

Start Date	Start Time	End Date	End Time
04/03/2001	2255	04/03/2001	2341
10/18/2001	1421	10/18/2001	1601

Subject:	SGP EBBR E18 - E18 EBBR Data Incorrect During 6 Month Checks
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The data was incorrect during the 6 month checks.
Measurements:	sgp5ebbrE18.b1: rh_bottom_fraction temp_reference temp_air_top wdir_vec_std temp_trh_bottom vapor_pressure_bottom rh_top_fraction wdir_vec_mean wspd_arith_mean wspd_vec_mean vapor_pressure_top net_radiation Barometric Pressure(atmos_pressure) temp_trh_top temp_air_bottom sgp30ebbrE18.b1: net_radiation rh_top_fraction latent_heat_flux soil_moisture_5 soil_temp_5 soil_temp_4 soil_temp_3 energy_storage_change_3 energy_storage_change_5 wspd_vec_mean soil_heat_capacity_1 Barometric Pressure(atmos_pressure) surface_soil_heat_flux_2 corr_soil_heat_flow_2 temp_air_top corr_soil_heat_flow_5 surface_soil_heat_flux_1 energy_storage_change_2 energy_storage_change_1 temp_air_bottom corr_soil_heat_flow_1 surface_soil_heat_flux_4 wdir_vec_mean soil_moisture_1 soil_heat_flow_4 temp_trh_top soil_moisture_2 vapor_pressure_top wdir_vec_std bowen_ratio surface_soil_heat_flux_5 soil_moisture_4 soil_heat_flow_3 soil_heat_capacity_2 rh_bottom_fraction wspd_arith_mean surface_soil_heat_flux_3 surface_soil_heat_flux_avg soil_heat_flow_5 corr_soil_heat_flow_3 temp_reference soil_temp_1 soil_heat_flow_1 sensible_heat_flux soil_heat_capacity_3 energy_storage_change_4 soil_heat_capacity_4 soil_heat_capacity_5 soil_heat_flow_2 corr_soil_heat_flow_4 vapor_pressure_bottom temp_trh_bottom soil_temp_2 soil_moisture_3 sgp15ebbrE18.b1: soil_heat_flow_1_mv soil_heat_flow_5_mv atmos_pressure_mv soil_temp_4_rr soil_temp_1_rr soil_moisture_2_r soil_moisture_5_r wdir_vec_mean_mv temp_trh_right_rr soil_heat_flow_3_mv rh_right_mv net_radiation_mv temp_air_right soil_heat_flow_2_mv wspd_arith_mean soil_heat_flow_4_mv soil_moisture_3_r temp_air_left soil_moisture_1_r soil_temp_3_rr temp_reference_rr temp_trh_left_rr soil_moisture_4_r soil_temp_5_rr soil_temp_2_rr rh_left_mv

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DQRID : D011218.5

Start Date	Start Time	End Date	End Time
02/15/2001	0800	02/16/2001	2031

Subject:	SGP EBBR E18 - E18 EBBR AEM Frozen, Data Incorrect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The AEM was frozen in one position. The indicated data is incorrect.
Measurements:	sgp5ebbrE18.b1: rh_bottom_fraction vapor_pressure_top temp_air_top temp_trh_bottom temp_trh_top rh_top_fraction vapor_pressure_bottom temp_air_bottom sgp30ebbrE18.b1: rh_top_fraction bowen_ratio latent_heat_flux rh_bottom_fraction temp_air_top sensible_heat_flux temp_air_bottom temp_trh_top vapor_pressure_bottom temp_trh_bottom vapor_pressure_top sgp15ebbrE18.b1: temp_air_left temp_trh_left_rr temp_trh_right_rr rh_right_mv temp_air_right rh_left_mv

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DQRID : D011218.6

Start Date	Start Time	End Date	End Time
02/15/2001	0625	02/16/2001	2031
02/16/2001	2355	02/17/2001	1650

Subject:	SGP EBBR E18 - E18 EBBR Wind Direction Frozen, Data Incorrect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The wind direction sensor was frozen stopped. The indicated data is incorrect.
Measurements:	sgp5ebbrE18.b1: wdir_vec_mean wdir_vec_std wspd_vec_mean sgp30ebbrE18.b1: wdir_vec_mean wspd_vec_mean wdir_vec_std sgp15ebbrE18.b1: wdir_vec_mean_mv

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DQRID : D011218.7

Start Date	Start Time	End Date	End Time
02/15/2001	0620	02/17/2001	2006

Subject:	SGP EBBR E18 - E18 EBBR Wind Speed Frozen, Data Incorrect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The wind speed sensor was frozen stopped. The indicated data are incorrect.
Measurements:	sgp5ebbrE18.b1: wspd_arith_mean wspd_vec_mean sgp30ebbrE18.b1: wspd_arith_mean wspd_vec_mean sgp15ebbrE18.b1: wspd_arith_mean

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DQRID : D011218.8

Start Date	Start Time	End Date	End Time
05/10/2001	1810	06/12/2001	2240

Subject:	SGP EBBR E18 - E18 EBBR Right RH Incorrect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The RH portion of the T/RH probe produced incorrect data. Sensible and latent heat fluxes and the Bowen ratio were also incorrect.
Measurements:	sgp5ebbrE18.b1: rh_bottom_fraction temp_trh_top vapor_pressure_bottom rh_top_fraction vapor_pressure_top temp_trh_bottom sgp30ebbrE18.b1: bowen_ratio rh_top_fraction latent_heat_flux sensible_heat_flux rh_bottom_fraction temp_trh_top vapor_pressure_bottom temp_trh_bottom vapor_pressure_top sgp15ebbrE18.b1: temp_trh_right_rr rh_right_mv

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DQRID : D020716.14

Start Date	Start Time	End Date	End Time
04/30/2002	2000	04/30/2002	2031

Subject:	SGP/EBBR/E18 - 6 Month Checks
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The indicated measurements were incorrect during the 6 month checks.
Measurements:	sgp5ebbrE18.b1: rh_bottom_fraction temp_trh_top vapor_pressure_bottom vapor_pressure_top rh_top_fraction temp_air_top temp_air_bottom temp_trh_bottom sgp30ebbrE18.b1: bowen_ratio rh_top_fraction latent_heat_flux temp_air_top sensible_heat_flux temp_air_bottom rh_bottom_fraction temp_trh_top vapor_pressure_bottom temp_trh_bottom vapor_pressure_top sgp15ebbrE18.b1: temp_air_left temp_air_right

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DQRID : D020717.21

Start Date	Start Time	End Date	End Time
11/14/2001	1945	11/14/2001	2001
11/25/2001	0215	11/25/2001	1901
11/28/2001	1145	11/28/2001	1501
11/29/2001	0745	11/29/2001	0931
11/29/2001	1415	11/30/2001	0431
12/02/2001	0145	12/02/2001	0201
12/03/2001	0045	12/03/2001	0101
12/24/2001	2015	12/24/2001	2031
12/25/2001	1915	12/25/2001	2031
01/18/2002	0115	01/18/2002	0201
01/22/2002	1615	01/22/2002	1631
01/24/2002	2115	01/24/2002	2131
01/28/2002	1345	01/28/2002	1401
02/13/2002	2215	02/14/2002	0801
02/25/2002	2345	02/26/2002	0001
03/14/2002	1515	03/29/2002	1831
04/06/2002	0030	04/17/2002	1401
04/18/2002	2230	04/30/2002	2031
05/01/2002	0300	05/28/2002	2031

Subject:	SGP/EBBR/E18 - AEM Hung
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The automatic exchange mechanism did not work properly for a number of time periods. The Bowen ratio, latent heat flux, and sensible heat flux were incorrect also during this condition.
Measurements:	sgp5ebbrE18.b1: rh_bottom_fraction temp_trh_top vapor_pressure_bottom vapor_pressure_top rh_top_fraction temp_air_top temp_air_bottom temp_trh_bottom sgp30ebbrE18.b1: bowen_ratio rh_top_fraction latent_heat_flux temp_air_top sensible_heat_flux temp_air_bottom rh_bottom_fraction temp_trh_top vapor_pressure_bottom temp_trh_bottom vapor_pressure_top sgp15ebbrE18.b1: temp_air_left temp_air_right

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DQRID : D020717.24

Start Date	Start Time	End Date	End Time
04/09/2002	1900	05/14/2002	1846

Subject:	SGP/EBBR/E18 - Left Air Temperature Incorrect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The left air temperature was incorrect much of the time, causing the Bowen ratio, sensible heat flux, and latent heat flux to be incorrect also.
Measurements:	sgp5ebbrE18.b1: temp_air_top temp_air_bottom sgp30ebbrE18.b1: bowen_ratio latent_heat_flux temp_air_top sensible_heat_flux temp_air_bottom sgp15ebbrE18.b1: temp_air_left

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DQRID : D020717.25

Start Date	Start Time	End Date	End Time
04/17/2002	1430	04/17/2002	1431

Subject:	SGP/EBBR/E18 - Reference Temperature Incorrect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The reference temperature was incorrect during the checks of the left air temperature sensor, leading to all gradient measurements, Bowen ratio, sensible heat flux, latent heat flux, soil temperature, and soil moisture measurements being incorrect.
Measurements:	sgp5ebbrE18.b1: temp_air_top temp_trh_bottom temp_trh_top temp_air_bottom sgp30ebbrE18.b1: bowen_ratio latent_heat_flux soil_moisture_4 soil_moisture_5 soil_temp_5 soil_temp_4 soil_temp_3 energy_storage_change_3 soil_heat_capacity_2 energy_storage_change_5 soil_heat_capacity_1 temp_reference soil_temp_1 temp_air_top sensible_heat_flux energy_storage_change_2 energy_storage_change_1 soil_heat_capacity_3 energy_storage_change_4 temp_air_bottom soil_moisture_1 soil_heat_capacity_4 soil_heat_capacity_5 soil_moisture_2 soil_temp_2 soil_moisture_3 sgp15ebbrE18.b1: temp_air_left temp_air_right

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DQRID : D030110.23

Start Date	Start Time	End Date	End Time
11/25/2002	2215	11/25/2002	2245

Subject:	SGP/EBBR/E18 - Data Incorrect during 6 month checks
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	Some of the measurements are incorrect during the 6 month checks.
Measurements:	sgp5ebbrE18.b1: rh_bottom_fraction temp_trh_top vapor_pressure_bottom vapor_pressure_top rh_top_fraction temp_air_top temp_air_bottom temp_trh_bottom sgp30ebbrE18.b1: bowen_ratio rh_top_fraction latent_heat_flux temp_air_top sensible_heat_flux temp_air_bottom rh_bottom_fraction temp_trh_top vapor_pressure_bottom temp_trh_bottom vapor_pressure_top sgp15ebbrE18.b1: temp_air_left temp_air_right

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DQRID : D030115.12

Start Date	Start Time	End Date	End Time
11/12/2002	2200	11/12/2002	2229

Subject:	SGP/EBBR/E18 - Data Mostly Zero Following Logger Restart
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	Most of the measurements were zero, which normally happens after a datalogger restart. The restart on 11/12/02 occurred after replacement of soil heat flow #1.
Measurements:	sgp5ebbrE18.b1: home_signal rh_top_fraction vapor_pressure_bottom wspd_arith_mean wspd_vec_mean temp_trh_top rh_bottom_fraction temp_reference temp_air_top temp_trh_bottom wdir_vec_std wdir_vec_mean vapor_pressure_top net_radiation Barometric Pressure(atmos_pressure) temp_air_bottom sgp30ebbrE18.b1: net_radiation latent_heat_flux home_signal_15 wspd_vec_mean home_signal_30 soil_heat_capacity_1 corr_soil_heat_flow_5 surface_soil_heat_flux_4 soil_moisture_1 soil_moisture_2 wdir_vec_std vapor_pressure_top bowen_ratio surface_soil_heat_flux_5 wspd_arith_mean surface_soil_heat_flux_3 surface_soil_heat_flux_avg soil_heat_flow_5 corr_soil_heat_flow_3 soil_temp_1 energy_storage_change_4 corr_soil_heat_flow_4 soil_moisture_3 soil_temp_2 rh_top_fraction soil_moisture_5 soil_temp_5 soil_temp_4 soil_temp_3 energy_storage_change_3 energy_storage_change_5 Barometric Pressure(atmos_pressure) surface_soil_heat_flux_2 temp_air_top corr_soil_heat_flow_2 surface_soil_heat_flux_1 energy_storage_change_1 energy_storage_change_2 temp_air_bottom corr_soil_heat_flow_1 wdir_vec_mean soil_heat_flow_4 temp_trh_top soil_moisture_4 soil_heat_flow_3 rh_bottom_fraction soil_heat_capacity_2 temp_reference soil_heat_flow_1 sensible_heat_flux soil_heat_capacity_3 soil_heat_capacity_4 soil_heat_flow_2 soil_heat_capacity_5 vapor_pressure_bottom temp_trh_bottom sgp15ebbrE18.b1: soil_heat_flow_1_mv soil_temp_1_rr rh_right_mv net_radiation_mv temp_air_right wspd_arith_mean temp_air_left soil_temp_3_rr temp_reference_rr soil_moisture_5_rr soil_temp_5_rr soil_temp_2_rr rh_left_mv soil_heat_flow_5_mv soil_temp_4_rr atmos_pressure_mv soil_moisture_1_rr wdir_vec_mean_mv temp_trh_right_rr soil_heat_flow_3_mv soil_heat_flow_2_mv soil_heat_flow_4_mv soil_moisture_4_rr home_signal soil_moisture_3_rr soil_moisture_2_rr temp_trh_left_rr battery_voltage

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DQRID : D030711.22

Start Date	Start Time	End Date	End Time
04/01/2003	2145	04/01/2003	2200

Subject:	SGP/EBBR/E18 - AEM Hung
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The AEM was hung inbetween home positions, causing many measurements to be incorrect.
Measurements:	sgp5ebbrE18.b1: rh_bottom_fraction vapor_pressure_top temp_air_top temp_trh_bottom temp_trh_top rh_top_fraction vapor_pressure_bottom temp_air_bottom sgp30ebbrE18.b1: rh_top_fraction bowen_ratio latent_heat_flux rh_bottom_fraction temp_air_top sensible_heat_flux temp_air_bottom temp_trh_top vapor_pressure_bottom temp_trh_bottom vapor_pressure_top sgp15ebbrE18.b1: temp_air_left temp_trh_left_rr temp_trh_right_rr rh_right_mv temp_air_right rh_left_mv

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DQRID : D030712.19

Start Date	Start Time	End Date	End Time
04/15/2003	2120	04/15/2003	2215

Subject:	SGP/EBBR/E18 - 6 Month Checks
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks.
Measurements:	sgp5ebbrE18.b1: rh_bottom_fraction vapor_pressure_top temp_air_top temp_trh_bottom temp_trh_top rh_top_fraction vapor_pressure_bottom temp_air_bottom sgp30ebbrE18.b1: rh_top_fraction bowen_ratio latent_heat_flux rh_bottom_fraction temp_air_top sensible_heat_flux temp_air_bottom temp_trh_top vapor_pressure_bottom temp_trh_bottom vapor_pressure_top sgp15ebbrE18.b1: temp_air_left temp_trh_left_rr temp_trh_right_rr rh_right_mv temp_air_right rh_left_mv

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DQRID : D030919.9

Start Date	Start Time	End Date	End Time
08/30/2003	1500	09/02/2003	2100

Subject:	SGP/EBBR/E18 - Water in Net Radiometer; Surface Fluxes are Incorrect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The net radiometer top dome was punctured by migrating birds. This alone does not cause incorrect net radiation measurements. However, when it subsequently rains, water collects in the bottom dome, causing the net radiation measurements to be too large during the day and too small at night.
Measurements:	sgp5ebbrE18.b1: net_radiation sgp30ebbrE18.b1: net_radiation latent_heat_flux sensible_heat_flux sgp15ebbrE18.b1: net_radiation_mv

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DQRID : D031204.16

Start Date	Start Time	End Date	End Time
10/28/2003	2225	10/28/2003	2315

Subject:	SGP/EBBR/E18 - 6 Month Checks
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks.
Measurements:	sgp5ebbrE18.b1: rh_bottom_fraction vapor_pressure_top temp_air_top temp_trh_bottom temp_trh_top rh_top_fraction vapor_pressure_bottom temp_air_bottom sgp30ebbrE18.b1: rh_top_fraction bowen_ratio latent_heat_flux rh_bottom_fraction temp_air_top sensible_heat_flux temp_air_bottom temp_trh_top vapor_pressure_bottom temp_trh_bottom vapor_pressure_top sgp15ebbrE18.b1: temp_air_left temp_trh_left_rr temp_trh_right_rr rh_right_mv temp_air_right rh_left_mv

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DQRID : D040206.1

Start Date	Start Time	End Date	End Time
01/26/2004	1915	04/13/2004	2045

Subject:	SGP/EBBR/E18 - AEM Sitting At Home 15 Position
DataStreams:	sgp15ebbrE18.b1, sgp30baebbrE18.c1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	After replacement of the AEM on 1/26/04, it exchanged briefly, then sat at the home 15 position until another replacement was available.
Measurements:	sgp5ebbrE18.b1: rh_bottom_fraction vapor_pressure_top temp_air_top temp_trh_bottom temp_trh_top vapor_pressure_bottom rh_top_fraction temp_air_bottom sgp30ebbrE18.b1: rh_top_fraction bowen_ratio latent_heat_flux rh_bottom_fraction temp_air_top sensible_heat_flux temp_air_bottom temp_trh_top vapor_pressure_bottom temp_trh_bottom vapor_pressure_top sgp15ebbrE18.b1: temp_air_left temp_air_right sgp30baebbrE18.c1: Temperature of the top humidity chamber(thum_top) top air temperature(tair_top) bottom air temperature(tair_bot) bottom vapor pressure(vp_bot) Temperature of bottom humidity sensor chamber(thum_bot) h(h) Top humidity(hum_top) Best estimate Latent heat flux(ecomb) Aerodynamic Sensible heat flux(ah) ratio of sensible/latent heat fluxes (Bowen ratio)(bowen) Bottom humidity(hum_bot) Aerodynamic Latent heat flux(ale) top vapor pressure(vp_top) Best estimate Sensible heat flux(hcomb) latent heat flux(e)

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DQRID : D040304.17

Start Date	Start Time	End Date	End Time
01/28/2004	0140	01/28/2004	0305
02/05/2004	0145	02/05/2004	0520

Subject:	SGP/EBBR/E18 - Wind Speed Frozen Stopped By Ice
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	An ice storm froze the wind speed sensor to a stopped condition. The wind speed and residual wind speed measurements are incorrect. This sensor failure does not affect the sensible and latent heat fluxes.
Measurements:	sgp5ebbrE18.b1: wspd_arith_mean wspd_vec_mean sgp30ebbrE18.b1: wspd_arith_mean wspd_vec_mean sgp15ebbrE18.b1: wspd_arith_mean

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DQRID : D041222.14

Start Date	Start Time	End Date	End Time
09/28/2004	2230	09/28/2004	2300

Subject:	SGP/EBBR/E18 - 6 Month Checks
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	Many measurements were incorrect while the AEM was positioned with both aspirators at the same height for comparison checks.
Measurements:	sgp5ebbrE18.b1: rh_bottom_fraction vapor_pressure_top temp_air_top temp_trh_bottom temp_trh_top rh_top_fraction vapor_pressure_bottom temp_air_bottom sgp30ebbrE18.b1: rh_top_fraction bowen_ratio latent_heat_flux rh_bottom_fraction temp_air_top sensible_heat_flux temp_air_bottom temp_trh_top vapor_pressure_bottom temp_trh_bottom vapor_pressure_top sgp15ebbrE18.b1: temp_air_left temp_trh_left_rr temp_trh_right_rr rh_right_mv temp_air_right rh_left_mv

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DQRID : D050206.12

Start Date	Start Time	End Date	End Time
01/05/2005	1810	01/06/2005	2045

Subject:	SGP/EBBR/E18 - Wind Speed Frozen Stopped By Ice Storm
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	An ice storm froze the wind speed sensor to a stopped condition. The wind speed and residual wind speed measurements are incorrect. This sensor failure does not affect the sensible and latent heat fluxes.
Measurements:	sgp5ebbrE18.b1: wspd_arith_mean wspd_vec_mean sgp30ebbrE18.b1: wspd_arith_mean wspd_vec_mean sgp15ebbrE18.b1: wspd_arith_mean

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DQRID : D050207.8

Start Date	Start Time	End Date	End Time
01/07/2005	0010	01/07/2005	1550

Subject:	SGP/EBBR/E18 - Wind Direction Frozen Stopped By Ice Storm
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The wind direction sensor was frozen stopped by ice from a storm. The wind direction, sigma_wd, and residual wind speed measurements are incorrect.
Measurements:	sgp5ebbrE18.b1: wdir_vec_mean wdir_vec_std wspd_vec_mean sgp30ebbrE18.b1: wdir_vec_mean wspd_vec_mean wdir_vec_std sgp15ebbrE18.b1: wdir_vec_mean_mv

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DQRID : D051106.10

Start Date	Start Time	End Date	End Time
07/27/2005	0730	08/03/2005	2100

Subject:	SGP/EBBR/E18 - Net Radiation Incorrect; Sensible and Latent Heat Fluxes Incorrect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The net radiometer top dome was broken and water got inside, making the net radiation, and sensible and latent heat flux measurements incorrect.
Measurements:	sgp5ebbrE18.b1: net_radiation sgp30ebbrE18.b1: net_radiation latent_heat_flux sensible_heat_flux sgp15ebbrE18.b1: net_radiation_mv

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DQRID : D051111.13

Start Date	Start Time	End Date	End Time
10/13/2003	0000	07/22/2005	2359

Subject:	SGP/EBBR/E18 - metadata corrections
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	On 20050723, a series of metadata corrections and additions were completed. These metadata changes apply to all EBBR.E18 data collected by ARM back to the installation of the instrument in July 1997. Please see the current metadata for correct information. These changes do not affect data values or quality. The changes are summarized below: 1) Update of "sensor location" information 2) Addition of installation dates for the systems 3) Correction of soil type 4) Correction of soil moisture units (from "by volume" to "gravimetric")
Measurements:	sgp5ebbrE18.b1: base time(base_time) sgp30ebbrE18.b1: base time(base_time) sgp15ebbrE18.b1: base time(base_time)

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DQRID : D060501.17

Start Date	Start Time	End Date	End Time
01/22/2006	0000	01/26/2006	0530
02/18/2006	0400	02/18/2006	2030
02/20/2006	0200	02/24/2006	1630
03/31/2006	0530	03/31/2006	0900

Subject:	SGP/EBBR/E18 - Wind Speed Zero
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	Wind Speed was zero, presumably because the sensor was frozen stopped during freezing rain.
Measurements:	sgp5ebbrE18.b1: wspd_arith_mean wspd_vec_mean sgp30ebbrE18.b1: wspd_arith_mean wspd_vec_mean sgp15ebbrE18.b1: wspd_arith_mean

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DQRID : D060818.6

Start Date	Start Time	End Date	End Time
05/31/2006	0430	06/02/2006	2130

Subject:	SGP/EBBR/E18 - Sensible and Latent Heat Fluxes and Net Radiation Incorrect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The net radiometer dome was cracked and water had gotten in, resulting in incorrect net radiation measurements and therefore incorrect sensible and latent heat flux measurements.
Measurements:	sgp5ebbrE18.b1: net_radiation sgp30ebbrE18.b1: net_radiation latent_heat_flux sensible_heat_flux sgp15ebbrE18.b1: net_radiation_mv

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DQRID : D080424.1

Start Date	Start Time	End Date	End Time
04/15/2008	0030	05/06/2008	2110

Subject:	SGP/EBBR/E18 - Soil Heat Flow #4 Offscale Low; Sensible and Latent Heat Flux Sometimes Incorrect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1
Description:	Soil heat flow #4 was sometimes lower than the lower limit imposed in the EBBR programming; sensible and latent heat flux were therefore deemed to be suspect during those times. The cause of the low values is not clear, but the values are not reasonable for the vegetation type at EF18.
Measurements:	sgp30ebbrE18.b1: surface_soil_heat_flux_4 latent_heat_flux soil_heat_flow_4 corr_soil_heat_flow_4 surface_soil_heat_flux_1 sensible_heat_flux surface_soil_heat_flux_avg sgp15ebbrE18.b1: soil_heat_flow_4_mv

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DQRID : D080702.2

Start Date	Start Time	End Date	End Time
05/06/2008	1215	06/17/2008	2120

Subject:	SGP/EBBR/E18 - SHF #4 Measurements Too Low; Sensible and Latent Heat Fluxes Suspect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1
Description:	Soil heat flow #4 was replaced at the beginning of this period. However, the soil heat flow measurements from that sensor were sometimes still lower than the lower limit imposed in the EBBR programming; sensible and latent heat flux were therefore deemed to be suspect during those times. The cause of the low values could not be determined, but the values are not reasonable for the vegetation type at EF18. To remedy the situation, the soil heat flow sensor calibration was changed so that the sensor provided measurements that resembled the other four soil heat flow sensor measurements. Soil heat flow measurements have been reasonable since the calibration change.
Measurements:	sgp30ebbrE18.b1: surface_soil_heat_flux_4 latent_heat_flux soil_heat_flow_4 corr_soil_heat_flow_4 sensible_heat_flux surface_soil_heat_flux_avg sgp15ebbrE18.b1: soil_heat_flow_4_mv

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DQRID : D090313.3

Start Date	Start Time	End Date	End Time
01/26/2009	2150	01/29/2009	1550

Subject:	SGP/EBBR/E18 - Wind Speed Incorrect
DataStreams:	sgp15ebbrE18.b1, sgp30ebbrE18.b1, sgp5ebbrE18.b1
Description:	The wind speed sensor was frozen stopped and thus wind speed was incorrect during this period.
Measurements:	sgp5ebbrE18.b1: wspd_arith_mean wspd_vec_mean sgp30ebbrE18.b1: wspd_arith_mean wspd_vec_mean sgp15ebbrE18.b1: wspd_arith_mean

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END OF DATA