{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["006:55"], "contactPoint": {"fn": "Adam Fleisher", "hasEmail": "mailto:adam.fleisher@nist.gov"}, "description": "Data set from peer-reviewed publication:  D. M. Bailey et al., Precision spectroscopy of nitrous oxide isotopocules with a cross-dispersed spectrometer and a mid-infrared frequency comb, Analytical Chemistry, 92, 13759-13766 (2020).\n\nAs a potent greenhouse gas and an ozone depleting agent, nitrous oxide (N2O) plays a critical role in the global climate. Effective mitigation relies on understanding global sources and sinks, which can be supported through isotopic analysis. We present a cross-dispersed spectrometer, coupled with a mid-infrared frequency comb, capable of simultaneously monitoring all singly substituted, stable isotopic variants of N2O. Rigorous evaluation of the instrument lineshape function and data treatment using a Doppler-broadened, low-pressure gas sample are discussed. Laboratory characterization of the spectrometer demonstrates sub-GHz spectral resolution and an average precision of 6.7 x 10^{-6} for fractional isotopic abundance retrievals in 1 s.", "distribution": [{"accessURL": "https://doi.org/10.18434/mds2-2316", "title": "DOI Access for Precision spectroscopy of nitrous oxide isotopocules with a cross-dispersed spectrometer and a mid-infrared frequency comb"}, {"description": "Data from Fig. 1D and Fig. 1E:  VIPA instrument lineshape analysis and trends.", "downloadURL": "https://data.nist.gov/od/ds/mds2-2316/fig1.xlsx", "format": "Excel workbook", "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "title": "VIPA Instrument Lineshape Data (Fig. 1D and Fig. 1E)"}, {"description": "Data from Fig. 5:  Construction of model VIPA transmission spectrum using known instrument lineshape function.", "downloadURL": "https://data.nist.gov/od/ds/mds2-2316/fig5.xlsx", "format": "Excel workbook", "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "title": "Worked example of modeled transmission spectra (Fig. 5)"}, {"description": "Data from Fig. 6:  full experimental and simulated model spectra for pure N2O transmission spectrum.", "downloadURL": "https://data.nist.gov/od/ds/mds2-2316/fig6.xlsx", "format": "Excel workbook", "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "title": "Experimental and simulated spectral data for 0.69 kPa of pure N2O (Fig. 6)."}, {"description": "Data from Fig. 7:  the composite and full optical instrument lineshape characterization in two dimensions.", "downloadURL": "https://data.nist.gov/od/ds/mds2-2316/fig7.xlsx", "format": "Excel workbook", "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "title": "Instrument lineshape function characterization (Fig. 7)"}, {"description": "Data from Fig. 8:  experimental, simulated model, and fitted residuals of rapid VIPA spectroscopy at 3 ms of integration time.", "downloadURL": "https://data.nist.gov/od/ds/mds2-2316/fig8.xlsx", "format": "Excel workbook", "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "title": "Transmission spectrum of 1.35 kPa of pure N2O at 3 ms of integration time (Fig. 8)"}, {"description": "Data from Fig. 9:  Allan deviation analysis of N2O isotopic composition plotted versus both integration time and laboratory time.", "downloadURL": "https://data.nist.gov/od/ds/mds2-2316/fig9.xlsx", "format": "Excel workbook", "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "title": "Allan deviation analysis of N2O isotopic composition (Fig. 9)"}, {"downloadURL": "https://data.nist.gov/od/ds/mds2-2316/fig1.xlsx.sha256", "mediaType": "text/plain", "title": "SHA256 File for VIPA Instrument Lineshape Data (Fig. 1D and Fig. 1E)"}, {"downloadURL": "https://data.nist.gov/od/ds/mds2-2316/fig5.xlsx.sha256", "mediaType": "text/plain", "title": "SHA256 File for Worked example of modeled transmission spectra (Fig. 5)"}, {"downloadURL": "https://data.nist.gov/od/ds/mds2-2316/fig6.xlsx.sha256", "mediaType": "text/plain", "title": "SHA256 File for Experimental and simulated spectral data for 0.69 kPa of pure N2O (Fig. 6)."}, {"downloadURL": "https://data.nist.gov/od/ds/mds2-2316/fig7.xlsx.sha256", "mediaType": "text/plain", "title": "SHA256 File for Instrument lineshape function characterization (Fig. 7)"}, {"downloadURL": "https://data.nist.gov/od/ds/mds2-2316/fig8.xlsx.sha256", "mediaType": "text/plain", "title": "SHA256 File for Transmission spectrum of 1.35 kPa of pure N2O at 3 ms of integration time (Fig. 8)"}, {"downloadURL": "https://data.nist.gov/od/ds/mds2-2316/fig9.xlsx.sha256", "mediaType": "text/plain", "title": "SHA256 File for Allan deviation analysis of N2O isotopic composition (Fig. 9)"}], "identifier": "ark:/88434/mds2-2316", "issued": "2020-10-27", "keyword": ["Environment and Climate", "greenhouse gases", "nitrous oxide", "optical frequency combs", "remote sensing", "spectroscopy"], "landingPage": "https://data.nist.gov/od/id/mds2-2316", "language": ["en"], "license": "https://www.nist.gov/open/license", "modified": "2020-09-18 00:00:00", "programCode": ["006:045"], "publisher": {"@type": "org:Organization", "name": "National Institute of Standards and Technology"}, "references": ["https://dx.doi.org/10.1021/acs.analchem.0c01868"], "theme": ["Chemistry:Analytical chemistry", "Environment:Greenhouse gas measurements", "Physics:Optical physics", "Physics:Spectroscopy"], "title": "Precision spectroscopy of nitrous oxide isotopocules with a cross-dispersed spectrometer and a mid-infrared frequency comb"}