Ivotuk Tower

Latest readings from the Ivotuk tower as of: 2008-08-10 07:30:00 Alaska Standard Time

DescriptionValueUnits
2008-08-10 07:30:00
Arbitrary Campell program ID v1091-500
Datalogger ID1001-254
Program/PROM Signature4059.600-99
Shortwave Radiation Up106.56Watts m-2
Shortwave Radiation Down20.442Watts m-2
Shortwave Radiation Net86.114Watts m-2
albedo0.1863albedo
Longwave Radiation Up-11.129W m-2
Longwave Radiation Down3.8157W m-2
Longwave Radiation Up (Tempera312.32W m-2
Longwave Radiation Down (Tempe327.27W m-2
Net Longwave Radiation (Temper-14.945W m-2
Total Up Radiation (Shortwave 418.88W m-2
Total Down Radiation (Shortwav347.71Watts m-2
Net radiometer (0-60 um) sensi71.169Watts m-2
Kipp & Zonen Body Temperature1.6662C
Effective Sky Temperature (fro-0.74548C
Effective Ground Temperature (2.4712C
Photosynthetic Active Radiatio195.92umol m-2 sec-1
Air temperature of sensor 12.0456C
Air Temperature (on 2nd tower)2.1169C
Relative humidity at sensor 195.191%
RH Fraction0.95191Fraction
Saturation Vapor Pressure (ove0.70776kPa
Saturation Vapor Pressure (ove-55555kPa
Vapor Pressure0.67373kPa
Atmospheric Pressure (from Lic94.855kPa
Wind Speed3.1404m s-1
Wind Direction (True)80.048Degrees
Standard Deviation of Wind Dir10.516Degrees
Licor 7500 Body Temperature3.0651C
Licor 7500 CO2 Density16.879mmol m-3
Licor 7500 H2O Density64.584mmol m-3
Licor 7500 CO2 Absorptance0.09353
Licor 7500 H2O Absorptance0.01134
Licor 7500 Cooler Voltage1.2137Volts
Licor 7500 Diagnostic Value252
Licor 7500 Bandwidth5Hz
Licor 7500 Delay Step9
Licor 7500 Delay Time Step58.5milliseconds
Licor 7500 Total Delay Time298.5milliseconds
CO2 Mass Density (calculated f742.66mg m-3
CO2 Concentration (calculated 407.14umol mol-1
H2O Mass Density (calculated f1.1625g m-3
H2O Mole Fraction (calculated 1.558mmol mol-1
Dew Point Temperature (calcula-0.04696C
Sonic Surface Distance Measure-1.2756m
SR50 Distance Quality Value210.43none
Rain Total0mm
Soil ground heat flux, sensor 2.5119Watts m-2
Soil ground heat flux, sensor 5.1775Watts m-2
Soil ground heat flux, sensor 0.6736Watts m-2
Soil ground heat flux, sensor 2.287Watts m-2
Soil Heat Flux All Averaged2.6625Watts m-2
Temperature - Northern Power DC
Temperature of data logger pan4.2131C
Licor 7500 Enclosure Temperatu6.6894C
Goodrich Icing Detector Voltag5031.4Millivolts
Goodrich Icing Detector Voltag5031.8Millivolts
Goodrich Icing Detector Voltag5032.1Millivolts
Icing Time Detected0Minutes
Enclosure Heater On Time0Minutes
Kipp & Zonen Heater On Time0Minutes
Metek Heater On Time0Minutes
Licor 7500 Heater On Time0Minutes
Metek Heater Power Voltage-0.18Volts
Metek Heater Power Voltage-0.151Volts
Metek Heater Power Voltage-0.125Volts
23X Internal Lead Acid Battery13.53Volts
23X Internal Lead Acid Battery13.53Volts
23X Internal Lead Acid Battery13.53Volts
Vicor Switcher 12-Volt Output 11.87Volts
Vicor Switcher 12-Volt Output 11.95Volts
Vicor Switcher 12-Volt Output 11.98Volts
Vicor Switcher 24-Volt Output 24.03Volts
Vicor Switcher 24-Volt Output 24.07Volts
Vicor Switcher 24-Volt Output 24.09Volts
SDM-CD16AC Malfunction Counter0count
23X Watchdog Status Monitor0Count
23X Table 1 Overruns Counter0count
23X Low 12v Out Counter0count
23X Internal Litium Battery Vo2.552Volts
23X Flash Errors Counter0count
23X Table 1 Execution Run Time4781Milliseconds
Binary Icing Indicator (0=no i0flag
Icing Indicator Hour-Minute700hhmm
Icing Indicator Seconds14.7ss.s
Photosynthetic Active Radiatio13.162umol m-2 sec-1
pseudo-NDVI (Normalized Differ0.72572
Snow Temperature 0cm [Soil Sur2.5978C
Snow Temperature (+15cm)2.4548C
Snow Temperature (+30cm)2.3846C
Snow Temperature (+45cm)2.3792C
Snow Depth0.15442m
Soil temperature at -10cm 2.1744C
Tussock temperature at -5cm3.0438C
Soil temperature at -5cm 2.4525C
Tussock temperature at -5cm 3.3555C
Soil temperature at -10cm 2.0534C
Soil temperature at -5cm 3.0578C
Dew point temperature as calcu1.3583C
Max wind speed during measurem5.096m s-1
Temperature - Sony SNC-RZ30N c17.775C
Temperature - Norther Power SyC
Dynamax sunshine sensor total 222W/m2
Dynamax sunshine sensor diffus207.8W/m2