Matches in SemOpenAlex for { <https://semopenalex.org/work/W2012033336> ?p ?o ?g. }
Showing items 1 to 76 of
76
with 100 items per page.
- W2012033336 abstract "Argus is a two channel, tunable diode laser instrument which measures atmospheric methane and nitrous oxide in the upper troposphere and stratosphere up to an altitude of 32 km using second harmonic detection. Investigations of stratospheric transport from mid-latitudes into the tropics is the current focus of our work which requires high precision and high accuracy data. Argus was designed for use on remotely piloted aircraft or light-payload balloons and weighs less than 20 kg. The two channels each have their own laser, optics, detector and signal processing chains. We sample methane at 3.3 micrometers and nitrous oxide at 4.5 micrometers at a rate of 0.1 Hz. The gas is sampled in a Herriott cell which has a total path length of 18.8 m. Each laser is current- and temperature-controlled by a dedicated microprocessor. We sweep the laser at 10 Hz and record direct absorption spectra during the ramping of the laser current. The lasers are modulated with a 40 kHz sine wave; a phase sensitive amplifier and integrator detects the second harmonic data. The analysis is performed offline by applying direct fits to the measured spectra using the non-linear Marquardt- Levenberg algorithm. We have recently flown Argus and ATLAS together on the ER-2 platform for comparison. Precision of Argus is 0.6% and accuracy is estimated to 4 - 17% increasing with altitude." @default.
- W2012033336 created "2016-06-24" @default.
- W2012033336 creator A5011396993 @default.
- W2012033336 creator A5077371022 @default.
- W2012033336 date "1999-10-25" @default.
- W2012033336 modified "2023-09-23" @default.
- W2012033336 title "<title>Argus: a lightweight TDL instrument to measure stratospheric tracers</title>" @default.
- W2012033336 doi "https://doi.org/10.1117/12.366444" @default.
- W2012033336 hasPublicationYear "1999" @default.
- W2012033336 type Work @default.
- W2012033336 sameAs 2012033336 @default.
- W2012033336 citedByCount "0" @default.
- W2012033336 crossrefType "proceedings-article" @default.
- W2012033336 hasAuthorship W2012033336A5011396993 @default.
- W2012033336 hasAuthorship W2012033336A5077371022 @default.
- W2012033336 hasConcept C120665830 @default.
- W2012033336 hasConcept C121332964 @default.
- W2012033336 hasConcept C127313418 @default.
- W2012033336 hasConcept C153294291 @default.
- W2012033336 hasConcept C163861444 @default.
- W2012033336 hasConcept C165801399 @default.
- W2012033336 hasConcept C194257627 @default.
- W2012033336 hasConcept C199360897 @default.
- W2012033336 hasConcept C2776760603 @default.
- W2012033336 hasConcept C39432304 @default.
- W2012033336 hasConcept C41008148 @default.
- W2012033336 hasConcept C46362747 @default.
- W2012033336 hasConcept C49040817 @default.
- W2012033336 hasConcept C520434653 @default.
- W2012033336 hasConcept C62520636 @default.
- W2012033336 hasConcept C62649853 @default.
- W2012033336 hasConcept C79518650 @default.
- W2012033336 hasConceptScore W2012033336C120665830 @default.
- W2012033336 hasConceptScore W2012033336C121332964 @default.
- W2012033336 hasConceptScore W2012033336C127313418 @default.
- W2012033336 hasConceptScore W2012033336C153294291 @default.
- W2012033336 hasConceptScore W2012033336C163861444 @default.
- W2012033336 hasConceptScore W2012033336C165801399 @default.
- W2012033336 hasConceptScore W2012033336C194257627 @default.
- W2012033336 hasConceptScore W2012033336C199360897 @default.
- W2012033336 hasConceptScore W2012033336C2776760603 @default.
- W2012033336 hasConceptScore W2012033336C39432304 @default.
- W2012033336 hasConceptScore W2012033336C41008148 @default.
- W2012033336 hasConceptScore W2012033336C46362747 @default.
- W2012033336 hasConceptScore W2012033336C49040817 @default.
- W2012033336 hasConceptScore W2012033336C520434653 @default.
- W2012033336 hasConceptScore W2012033336C62520636 @default.
- W2012033336 hasConceptScore W2012033336C62649853 @default.
- W2012033336 hasConceptScore W2012033336C79518650 @default.
- W2012033336 hasLocation W20120333361 @default.
- W2012033336 hasOpenAccess W2012033336 @default.
- W2012033336 hasPrimaryLocation W20120333361 @default.
- W2012033336 hasRelatedWork W132488242 @default.
- W2012033336 hasRelatedWork W1520205000 @default.
- W2012033336 hasRelatedWork W1588768646 @default.
- W2012033336 hasRelatedWork W1604165577 @default.
- W2012033336 hasRelatedWork W192417220 @default.
- W2012033336 hasRelatedWork W1965564537 @default.
- W2012033336 hasRelatedWork W1975183264 @default.
- W2012033336 hasRelatedWork W2025611522 @default.
- W2012033336 hasRelatedWork W2033711187 @default.
- W2012033336 hasRelatedWork W2075024365 @default.
- W2012033336 hasRelatedWork W2265687826 @default.
- W2012033336 hasRelatedWork W233225642 @default.
- W2012033336 hasRelatedWork W2417910753 @default.
- W2012033336 hasRelatedWork W2464815482 @default.
- W2012033336 hasRelatedWork W2766541921 @default.
- W2012033336 hasRelatedWork W2948098577 @default.
- W2012033336 hasRelatedWork W2972461564 @default.
- W2012033336 hasRelatedWork W3173334374 @default.
- W2012033336 hasRelatedWork W756029880 @default.
- W2012033336 hasRelatedWork W810281029 @default.
- W2012033336 isParatext "false" @default.
- W2012033336 isRetracted "false" @default.
- W2012033336 magId "2012033336" @default.
- W2012033336 workType "article" @default.