Emission Ratios for Ammonia and Formic Acid and Observations of Peroxy Acetyl Nitrate (PAN) and Ethylene in Biomass Burning Smoke as Seen by the Tropospheric Emission Spectrometer (TES)

Alvarado, M. J.; Cady‐Pereira, Karen; Xiao, Yaping; Millet, Dylan B.; Payne, Vivienne H.

doi:10.3390/atmos2040633

Cited by 44 publications

(52 citation statements)

References 73 publications

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“…al., 2013). PAN signatures have also been observed in nadir observations of smoke plumes from fires by both the Aura Tropospheric Emission Spectrometer (TES) (Alvarado et al, 2011) and MetOp-A Infrared Atmospheric Sounding Instrument (IASI) (Clarisse et al, 2011), but, to our knowledge, PAN has not previously been retrieved in the nadir view on a global scale.…”

Section: Introductionmentioning

confidence: 64%

“…Therefore, the amount of information on PAN that can be retrieved from a single scan is somewhat limited. Figure 5 shows an example TES PAN retrieval for a measurement within a boreal fire plume (as determined by Alvarado et al, 2010Alvarado et al, , 2011, with associated averaging kernels. In this example, we see peak sensitivity to PAN at 300-400 hPa, with ∼ 1.0 DOFS for the retrieval.…”

Section: Retrieval Characteristicsmentioning

confidence: 99%

“…Building on the detection of PAN in TES radiances described by Alvarado et al (2011), we have developed a PAN retrieval product for TES. Here we describe the algorithm and the product.…”

Section: Introductionmentioning

confidence: 99%

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Satellite observations of peroxyacetyl nitrate from the Aura Tropospheric Emission Spectrometer

et al. 2014

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Abstract. We present a description of the algorithm used to retrieve peroxyacetyl nitrate (PAN) concentrations from the Aura Tropospheric Emission Spectrometer (TES). We describe the spectral microwindows, error analysis, and the utilization of a priori and initial guess information provided by the GEOS-Chem global chemical transport model. The TES PAN retrievals contain up to one degree of freedom for signal. In general, the retrievals are most sensitive to PAN in the mid-troposphere. Estimated single-measurement uncertainties are on the order of 30 to 50 %. The detection limit for a single TES measurement is dependent on the atmospheric and surface conditions as well as on the instrument noise. For observations where the cloud optical depth is less than 0.5, we find that the TES detection limit for PAN is in the region of 200 to 300 pptv. We show that PAN retrievals capture plumes associated with boreal burning. Retrievals over the Northern Hemisphere Pacific in springtime show spatial features that are qualitatively consistent with the expected distribution of PAN in outflow of Asian pollution.

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Section: Introductionmentioning

confidence: 64%

Section: Retrieval Characteristicsmentioning

confidence: 99%

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Satellite observations of peroxyacetyl nitrate from the Aura Tropospheric Emission Spectrometer

et al. 2014

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“…TES NH 3 data have been utilized jointly with GEOS-Chem in various emission source studies (e.g. Alvarado et al, 2011;Pinder et al, 2011;Walker et al, 2012;Zhu et al, 2013). Luo et al (2015) compared TES NH 3 versus carbon monoxide (CO) ratios, using data from the year 2007, to those of the GEOS-Chem model with a focus on biomass burning emissions using TES representative volume mixing ratio values .…”

Section: J X Warner Et Al: the Global Tropospheric Ammonia Distribmentioning

confidence: 99%

The global tropospheric ammonia distribution as seen in the 13-year AIRS measurement record

et al. 2016

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Abstract. Ammonia (NH 3 ) plays an increasingly important role in the global biogeochemical cycle of reactive nitrogen as well as in aerosol formation and climate. We present extensive and nearly continuous global ammonia measurements made by the Atmospheric Infrared Sounder (AIRS) from the Aqua satellite to identify and quantify major persistent and episodic sources as well as to characterize seasonality. We examine the 13-year period from September 2002 through August 2015 with a retrieval algorithm using an optimal estimation technique with a set of three, spatially and temporally uniform a priori profiles. Vertical profiles show good agreement (∼ 5-15 %) between AIRS NH 3 and the in situ profiles from the winter 2013 DISCOVER-AQ (DISCOVER-Air Quality) field campaign in central California, despite the likely biases due to spatial resolution differences between the two instruments. The AIRS instrument captures the strongest consistent NH 3 concentrations due to emissions from the anthropogenic (agricultural) source regions, such as South Asia (India/Pakistan), China, the United States (US), parts of Europe, Southeast (SE) Asia (Thailand/Myanmar/Laos), the central portion of South America, as well as Western and Northern Africa. These correspond primarily to irrigated croplands, as well as regions with heavy precipitation, with extensive animal feeding operations and fertilizer applications where a summer maximum and a secondary spring maximum are reliably observable. In the Southern Hemisphere (SH) regular agricultural fires contribute to a spring maximum. Regions of strong episodic emissions include Russia and Alaska as well as parts of South America, Africa, and Indonesia. Biomass burning, especially wildfires, dominate these episodic NH 3 high concentrations.

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“…More recently, C 2 H 4 was detected in boreal fire plumes (Alvarado et al, 2011;Dolan et al, 2016) during the 2008 ARCTAS mission by the Tropospheric Emission Spectrometer (TES), a nadir-viewing thermal emission FTS on board the Aura satellite. A strong correlation with CO was observed.…”

Section: Mkiv Balloon Profilesmentioning

confidence: 99%

Measurements of atmospheric ethene by solar absorption FTIR spectrometry

2018

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Abstract. Atmospheric ethene (C 2 H 4 ; ethylene) amounts have been retrieved from high-resolution solar absorption spectra measured by the Jet Propulsion Laboratory (JPL) MkIV interferometer. Data recorded from 1985 to 2016 from a dozen ground-based sites have been analyzed, mostly between 30 and 67 • N. At clean-air sites such as Alaska, Sweden, New Mexico, or the mountains of California, the ethene columns were always less than 1 × 10 15 molec cm −2 and therefore undetectable. In urban sites such as JPL, California, ethene was measurable with column amounts of 20 × 10 15 molec cm −2 observed in the 1990s. Despite the increasing population and traffic in southern California, a factor 3 decrease in ethene column density is observed over JPL over the past 25 years, accompanied by a decrease in CO. This is likely due to southern California's increasingly stringent vehicle exhaust regulations and tighter enforcement over this period.

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Emission Ratios for Ammonia and Formic Acid and Observations of Peroxy Acetyl Nitrate (PAN) and Ethylene in Biomass Burning Smoke as Seen by the Tropospheric Emission Spectrometer (TES)

Cited by 44 publications

References 73 publications

Satellite observations of peroxyacetyl nitrate from the Aura Tropospheric Emission Spectrometer

Satellite observations of peroxyacetyl nitrate from the Aura Tropospheric Emission Spectrometer

The global tropospheric ammonia distribution as seen in the 13-year AIRS measurement record

Measurements of atmospheric ethene by solar absorption FTIR spectrometry

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