RBNB Sink Actor Design And API

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There currently exist two prototype Kepler actors that retrieve and output data from RBNB servers, and a few workflows that use them. We will likely merge these actors into one, as well as continue to add functionality to them in the future.

RBNBToKepler outputs streaming data from an RBNB server. It is currently hardcoded to localhost.

RBNBToKepler2 operates on a timeslice of data from an RBNB server. The user specified server, time range, and optionally channels to ignore (ie to not download), and the actor then retrieves and outputs this data.

For example output from the RBNBToKepler2 actor, please see the Terrestrial Scientific UseCase page.

Below find screenshots of an example RBNBToKepler2 workflow and the resulting plots. This is junk "desk data"--the Campbell CR800 datalogger and sensors are set up and running on my desk. You can easily note when I switched from AC to solar near the beginning of the battery voltage plot. Sensors and the solar panel were/are occasionally arbitrarily moved about, though it was fairly infrequent (in the case of the panel, generally to better sit in sunlight). We had one cloudy day.

Plots

plot	Vendor	name/description	sensor model	units	notes
Air Temp	Campbell	Temp & RH Probe #1	CS215-L	Deg C	inside Gill Radiation Shield
Relative Humidity	Campbell	Temp & RH Probe #1	CS215-L	%	inside Gill Radiation Shield
Battery Voltage	Campbell	(12V Power Supply w/ Voltage Regulator)	(PS100)	Volts
Line Photosynthetic Photon Flux (PPF) 1	Apogee	Line Quantum Sensor #1	LQS70-10	mV	[1]
Line PPF 2	Apogee	Line Quantum Sensor #2	LQS70-10	mV	[1]
Point PPF	Apogee	Quantum Sensor	QSO-SUN	mV	[#1] plot is mV. Sensor has standard calibration 5.00 µmol m^-2s^-1 per mV. Full sunlight is 2000µmol m^-2s^-1 (400mV). PPF = sensor output * 5.00 µmol m^-2s^-1
Records	n/a	n/a	n/a
Wind Speed	Campbell	Anemometer	014A-L	m/s
Volumetric Water Content (VWC) 1	Campbell	Reflectometer #1	CS616	%	currently sitting on desk, not in soil
VWC 2	Campbell	Reflectometer #2	CS616	%	currently sitting on desk, not in soil

Air Temp

Relative Humidity

Battery Voltage

Line Photosynthetic Photon Flux (PPF) 1

Line PPF 2

Point PPF

Records

Wind Speed

Volumetric Water Content (VWC) 1

VWC 2

RBNBToKeplerDisplay4SDF_tmp_screenshot.jpg		140599 bytes
WS_ms_Avg.jpg		46804 bytes
qsosun_Avg.jpg		72442 bytes
Rain_mm_Tot.jpg		40860 bytes
VW_Avg_new.jpg		53973 bytes
lqs70_Avg(1).jpg		74036 bytes
air_temp_C.jpg		76472 bytes
records.jpg		52778 bytes
VW_Avg_2_new.jpg		44366 bytes
VW_Avg.jpg		58128 bytes
relative_humidity.jpg		67579 bytes
lqs70_Avg(2).jpg		70280 bytes
VW_Avg_2.jpg		45425 bytes
Batt_Volt_Mins.jpg		72261 bytes