| Subject: | Calibration interruption at TWP Nauru |
| DataStreams: | twpvceil25kC2.00, twpvceil25kC2.a1, twpvceil25kC2.b1
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| Description: | The ceilometer was tipped horizontal for a calibration check |
| Measurements: | twpvceil25kC2.00: - Raw data stream - documentation not supported(Raw data stream - documentation not supported)
twpvceil25kC2.b1: - Aerosol volume backscattering coefficient at 355 nm(backscatter)
- Warning and alarm status bits(status_string)
- Percentage of nominal factory setting (0 to 999%)(receiver_sensitivity)
- Vertical visibility(vertical_visibility)
- 6 character string describing instrument measurement parameters(measurement_parameters)
- north latitude for all the input platforms.(lat)
- altitude above sea levelaltunits(alt)
- Third cloud base height(third_cbh)
- Lowest cloud base height detected.(first_cbh)
- Time offset from base_time(base_time)
- distance to center of range bin after correcting for offset in sync(range)
- Millivolts at internal ADC input (0 to 2500)(background_light)
- Time offset of tweaks from base_time(time_offset)
- east longitude for all the input platforms.(lon)
- Laser temperature(laser_temperature)
- Altitude of highest signal(alt_highest_signal)
- Second lowest cloud base height(second_cbh)
- Degrees from vertical (-15 to +90)(tilt_angle)
- GPS raw data filename(filename)
- Detection status. See details(detection_status)
- Flag indicating aeri retrieval status(status_flag)
- Percentage of nominal factory setting (0 to 999%)(laser_pulse_energy)
- Millivolts at internal ADC input(window_contamination)
- SUM of detected and normalized backscatter(sum_backscatter)
twpvceil25kC2.a1: - Flag indicating aeri retrieval status(status_flag)
- Millivolts at internal ADC input (0 to 2500)(background_light)
- Aerosol volume backscattering coefficient at 355 nm(backscatter)
- Degrees from vertical (-15 to +90)(tilt_angle)
- Millivolts at internal ADC input(window_contamination)
- distance to center of range bin after correcting for offset in sync(range)
- north latitude for all the input platforms.(lat)
- Percentage of nominal factory setting (0 to 999%)(receiver_sensitivity)
- Detection status. See details(detection_status)
- 6 character string describing instrument measurement parameters(measurement_parameters)
- Percentage of nominal factory setting (0 to 999%)(laser_pulse_energy)
- GPS raw data filename(filename)
- east longitude for all the input platforms.(lon)
- Time offset from base_time(base_time)
- Lowest cloud base height detected.(first_cbh)
- Laser temperature(laser_temperature)
- Altitude of highest signal(alt_highest_signal)
- SUM of detected and normalized backscatter(sum_backscatter)
- Warning and alarm status bits(status_string)
- Vertical visibility(vertical_visibility)
- Time offset of tweaks from base_time(time_offset)
- altitude above sea levelaltunits(alt)
- Third cloud base height(third_cbh)
- Second lowest cloud base height(second_cbh)
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