KWAJEX Surface Flux data
Boundary layer data were collected during KWAJEX from the University
of Virginia site on Meck Island, Kwajalein Atoll (8.9953 N, 167.7271
E). Meck Island instrumentation included an instrumented 10 m tower,
an instrumented 10 m boom over the ocean and a tethersonde. The
micromet and radiation data are available from July 30-September 5,
1999 in both minute and half-hour resolution. Surface fluxes were
estimated from the above half-hour resolution data by the University
of Virginia.
Surface flux data fields
1. MMDDHHMM (UTC)
2. Surface sensible heat flux (W/m2)
3. Surface latent heat flux (W/m2)
Micromet (HH) data fields
1. Year
2. Julian Day
3. Local Standard Time (110 = 1:10, 1330 = 13:30, etc)
4. Greenwich Mean Time (GMT = LST + 12 hours)
5. CR7 datalogger reference temperature (Celsius)
6. Air temperature, CSI hygristor, 5.0 m "
7. Relative humidity, CSI hygristor, 5.0 m (%)
8. Air temperature, CSI hygristor, 9.0 m (Celsius)
9. Relative humidity, CSI hygristor, 9.0 m (%)
10. Air temperature, CSI thermistor, 1.5 m, (Celsius)
11. Air temperature, CSI thermistor, 3.0 m "
12. Air temperature, CSI thermistor, 5.0 m "
13. Air temperature, CSI thermistor, 7.0 m "
14. Air temperature, CSI thermistor, 9.5 m "
15. Wind speed, R.M. Young anemometer, 10.0 m (m/s)
16. Wind direction, R.M. Young anemometer, 10.0 m (degrees from North)
17. Incoming solar radiation, Eppley pyranometer (W m-2)
18. Ultraviolet radiation, Eppley UV radiometer (mv) ?
19. Ultraviolet radiation, Eppley UV radiometer (W m-2) ?
20. Atmospheric pressure at surface, CSI transducer (mb)
Radiation (HH) data fields
1. Year
2. Julian day
3. Local Standard Time (HourMinuteMinute)
4. Greenwich Mean Time
5. 21X datalogger reference temperature (Celsius)
6. ocean surface temperature (thermocouple; Celsius)
7. skin surface temperature (infrared radiometer; Celsius)
8. incoming solar radiation (Kipp & Zonen; W m-2)
9. reflected solar radiation (Kipp & Zonen; W m-2)
10. incoming longwave radiation (Kipp & Zonen, mV)
11. outgoing longwave radiation (Kipp & Zonen, mV)
12. Kipp & Zonen temperature (RTD; Celsius)
13. pyrgeometer cavity temperature (Celsius)
14. Wind speed (m s-1)
15. wind direction (degrees from North)
16. incoming longwave radiation (W m-2; calculated by adding Boltzman's law correction to mV value in column 11. The correction is ?T4, where T is the pyrgeometer cavity temperature (K).
17. outgoing longwave radiation (W m-2; calculated identically as above)
18. net radiation, W m-2 (calculated as column 9 + column 11 - column 10 - column 12, according to Kipp and Zonen manual specifications).