caa a22 4500 445372613 CHVBK 20180317142952.0 cr unu---uuuuu 170323e20110201xx s 000 0 eng 10.1007/s00340-010-4277-2 doi (NATIONALLICENCE)springer-10.1007/s00340-010-4277-2 Diode laser-based sensor for high precision measurements ofambient CO2 in network applications [Elektronische Daten] [D. Sonnenfroh, K. Parameswaran] The increasing need for better spatial and temporal measurements of greenhouse gases, especially CO2, to support global climate change modeling is driving the expansion of monitoring networks. Currently, networks making ambient CO2 measurements use environmentally stabilized sensors based on non-dispersive infrared absorption spectroscopy. To expand both measurement capability and coverage, much work is underway to develop highly accurate, reliable yet economical sensors for the greenhouse gases. The US Department of Energy has created specifications for a new sensor that has high performance but at a cost that permits widespread deployment. We report on a sensor designed to meet this need. We have demonstrated a compact, automated, high precision sensor for ambient CO2 that offers good performance in an economical package. The sensor is a near-IR diode laser-based absorption spectrometer operating near 2 μm and using Integrated Cavity Output Spectroscopy (ICOS). Field demonstrations were carried out at both the UNH/AirMap Thompson Farm Observatory and the NOAA Boulder Atmospheric Observatory. The sensor has a demonstrated precision of between 0.090 and 0.125ppmv for a 30 sec acquisition, or 1 part in 3000 to 4000. Springer-Verlag, 2010 Sonnenfroh D. Physical Sciences Inc., 20 New England Business Center, 01810-1077, Andover, MA, USA aut Parameswaran K. Physical Sciences Inc., 20 New England Business Center, 01810-1077, Andover, MA, USA aut Applied Physics B Springer-Verlag 102/2(2011-02-01), 407-416 0946-2171 102:2<407 2011 102 340 https://doi.org/10.1007/s00340-010-4277-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00340-010-4277-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sonnenfroh D. Physical Sciences Inc., 20 New England Business Center, 01810-1077, Andover, MA, USA aut NATIONALLICENCE 700 1- Parameswaran K. Physical Sciences Inc., 20 New England Business Center, 01810-1077, Andover, MA, USA aut NATIONALLICENCE 773 0- Applied Physics B Springer-Verlag 102/2(2011-02-01), 407-416 0946-2171 102:2<407 2011 102 340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer