Search Results - "Joseph Mendonca"
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1
The Atmospheric Imaging Mission for Northern Regions: AIM-North
Published in Canadian journal of remote sensing (04-07-2019)“…AIM-North is a proposed satellite mission that would provide observations of unprecedented frequency and density for monitoring northern greenhouse gases…”
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Journal Article -
2
Towards understanding the variability in biospheric CO 2 fluxes: using FTIR spectrometry and a chemical transport model to investigate the sources and sinks of carbonyl sulfide and its link to CO 2
Published in Atmospheric chemistry and physics (25-02-2016)“…Understanding carbon dioxide (CO2) biospheric processes is of great importance because the terrestrial exchange drives the seasonal and interannual variability…”
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Journal Article -
3
Comparisons of the Orbiting Carbon Observatory-2 (OCO-2) XCO2 measurements with TCCON
Published in Atmospheric measurement techniques (01-06-2017)“…NASA's Orbiting Carbon Observatory-2 (OCO-2) has been measuring carbon dioxide column-averaged dry-air mole fraction, XCO2, in the Earth's atmosphere for over…”
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Journal Article -
4
Assessing the feasibility of using a neural network to filter Orbiting Carbon Observatory 2 (OCO-2) retrievals at northern high latitudes
Published in Atmospheric measurement techniques (03-12-2021)“…Satellite retrievals of XCO2 at northern high latitudes currently have sparser coverage and lower data quality than most other regions of the world. We use a…”
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Journal Article -
5
Retrieval of atmospheric CO.sub.2 vertical profiles from ground-based near-infrared spectra
Published in Atmospheric measurement techniques (28-04-2021)“…We evaluate vertical profile retrievals of CO.sub.2 from 0.02 cm.sup.-1 resolution ground-based near-infrared solar absorption spectra with the GFIT2…”
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Journal Article -
6
Retrieval of atmospheric CO 2 vertical profiles from ground-based near-infrared spectra
Published in Atmospheric measurement techniques (28-04-2021)“…We evaluate vertical profile retrievals of CO2 from 0.02 cm−1 resolution ground-based near-infrared solar absorption spectra with the GFIT2 algorithm, using…”
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Journal Article -
7
Using a Speed-Dependent Voigt Line Shape to Retrieve O 2 from Total Carbon Column Observing Network Solar Spectra to Improve Measurements of XCO 2
Published in Atmospheric measurement techniques (03-01-2019)“…High-resolution, laboratory, absorption spectra of the oxygen (O ) band measured using cavity ring-down spectroscopy were fitted using the Voigt and…”
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Journal Article -
8
Retrieval of atmospheric CO2 vertical profiles from ground-based near-infrared spectra
Published in Atmospheric measurement techniques (28-04-2021)“…We evaluate vertical profile retrievals of CO2 from 0.02 cm-1 resolution ground-based near-infrared solar absorption spectra with the GFIT2 algorithm, using…”
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Journal Article -
9
Using portable low-resolution spectrometers to evaluate Total Carbon Column Observing Network (TCCON) biases in North America
Published in Atmospheric measurement techniques (09-03-2023)“…EM27/SUN devices are portable solar-viewing Fourier transform spectrometers (FTSs) that are being widely used to constrain measurements of greenhouse gas…”
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Journal Article -
10
Improving the Retrievals of Greenhouse Gases from Ground-Based Solar Absorption Spectra
Published 01-01-2017“…A quadratic speed-dependent Voigt (qSDV) line shape with line mixing (LM) has been implemented into the forward model of the spectral fitting software GFIT to…”
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Dissertation -
11
The Total Carbon Column Observing Network's GGG2020 data version
Published in Earth system science data (06-05-2024)“…The Total Carbon Column Observing Network (TCCON) measures column-average mole fractions of several greenhouse gases (GHGs), beginning in 2004, from over 30…”
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Journal Article -
12
Using a speed-dependent Voigt line shape to retrieve O.sub.2 from Total Carbon Column Observing Network solar spectra to improve measurements of XCO.sub.2
Published in Atmospheric measurement techniques (03-01-2019)“…High-resolution, laboratory, absorption spectra of the a1ÎgâX3Σg- oxygen (O.sub.2) band measured using cavity ring-down spectroscopy were fitted using the…”
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Journal Article -
13
Towards understanding the variability in biospheric CO2 fluxes: using FTIR spectrometry and a chemical transport model to investigate the sources and sinks of carbonyl sulfide and its link to CO2
Published in Atmospheric chemistry and physics (25-02-2016)“…Understanding carbon dioxide (CO2) biospheric processes is of great importance because the terrestrial exchange drives the seasonal and interannual variability…”
Get full text
Journal Article Web Resource -
14
Study of the footprints of short-term variation in XCO 2 observed by TCCON sites using NIES and FLEXPART atmospheric transport models
Published in Atmospheric chemistry and physics (03-01-2017)“…The Total Carbon Column Observing Network (TCCON) is a network of ground-based Fourier transform spectrometers (FTSs) that record near-infrared (NIR) spectra…”
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Journal Article -
15
Study of the footprints of short-term variation in XCO.sub.2 observed by TCCON sites using NIES and FLEXPART atmospheric transport models
Published in Atmospheric chemistry and physics (03-01-2017)“…The Total Carbon Column Observing Network (TCCON) is a network of ground-based Fourier transform spectrometers (FTSs) that record near-infrared (NIR) spectra…”
Get full text
Journal Article -
16
Study of the footprints of short-term variation in XCO2 observed by TCCON sites using NIES and FLEXPART atmospheric transport models
Published in Atmospheric chemistry and physics (01-01-2017)“…The Total Carbon Column Observing Network (TCCON) is a network of ground-based Fourier transform spectrometers (FTSs) that record near-infrared (NIR) spectra…”
Get full text
Journal Article -
17
Using a speed-dependent Voigt line shape to retrieve O2 from Total Carbon Column Observing Network solar spectra to improve measurements of XCO2
Published in Atmospheric measurement techniques (01-01-2019)“…High-resolution, laboratory, absorption spectra of the a1Δg←X3Σg- oxygen (O2) band measured using cavity ring-down spectroscopy were fitted using the Voigt and…”
Get full text
Journal Article -
18
Comparisons of the Orbiting Carbon Observatory-2 (OCO-2) X CO 2 measurements with TCCON
Published in Atmospheric measurement techniques (13-06-2017)“…NASA's Orbiting Carbon Observatory-2 (OCO-2) has been measuring carbon dioxide column-averaged dry-air mole fraction, XCO2, in the Earth's atmosphere for over…”
Get full text
Journal Article -
19
Comparisons of the Orbiting Carbon Observatory-2 X.sub.CO.sub.2 measurements with TCCON
Published in Atmospheric measurement techniques (13-06-2017)“…NASA's Orbiting Carbon Observatory-2 (OCO-2) has been measuring carbon dioxide column-averaged dry-air mole fraction, X.sub.CO.sub.2, in the Earth's atmosphere…”
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Journal Article -
20
Improvisation in emergency response organizations: A cognitive approach
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Dissertation