AERONET Remotely Sensed Measurements and Retrievals of Biomass Burning Aerosol Optical Properties During the 2015 Indonesian Burning Season

T. F. Eck, B. N. Holben, D. M. Giles, I. Slutsker, A. Sinyuk, J. S. Schafer, A. Smirnov, M. Sorokin, J. S. Reid, A. M. Sayer, N. C. Hsu, Y. R. Shi, R. C. Levy, A. Lyapustin, Muhammad Arif Rahman, Soo Chin Liew, Santo V. Salinas Cortijo, Tan Li, Daniel Kalbermatter, Kwoh Leong Keong & 10 others Muhammad Elifant Yuggotomo, Fanni Aditya, Maznorizan Mohamad, Mastura Mahmud, Tan Kok Chong, Hwee San Lim, Yeap Eng Choon, Gumilang Deranadyan, Sheila D.A. Kusumaningtyas, Edvin Aldrian

Research output: Contribution to journalArticle

Abstract

An extreme biomass burning event occurred in Indonesia from September through October 2015 due to severe drought conditions, partially caused by a major El Niño event, thereby allowing for significant burning of peatland that had been previously drained. This event had the highest sustained aerosol optical depths (AODs) ever monitored by the global Aerosol Robotic Network (AERONET). The newly developed AERONET Version 3 algorithms retain high AOD at the longer wavelengths when associated with high Ångström exponents (AEs), which thereby allowed for measurements of AOD at 675 nm as high as approximately 7, the upper limit of Sun photometry. Measured AEs at the highest monitored AOD levels were subsequently utilized to estimate instantaneous values of AOD at 550 nm in the range of 11 to 13, well beyond the upper measurement limit. Additionally, retrievals of complex refractive indices, size distributions, and single scattering albedos (SSAs) were obtained at much higher AOD levels than possible from almucantar scans due to the ability to perform retrievals at smaller solar zenith angles with new hybrid sky radiance scans. For retrievals made at the highest AOD levels the fine-mode volume median radii were ~0.25–0.30 micron, which are very large particles for biomass burning. Very high SSA values (~0.975 from 440 to 1,020 nm) are consistent with the domination by smoldering combustion of peat burning. Estimates of the percentage peat contribution to total biomass burning aerosol based on retrieved SSA and laboratory measured peat SSA were ~80–85%, in excellent agreement with independent estimates.

Original languageEnglish
Pages (from-to)4722-4740
Number of pages19
JournalJournal of Geophysical Research: Atmospheres
Volume124
Issue number8
DOIs
Publication statusPublished - 27 Apr 2019

Fingerprint

burning season
biomass burning
optical properties
aerosols
Aerosols
robotics
optical property
retrieval
Robotics
Biomass
optical depth
Optical properties
aerosol
optical thickness
biomass
albedo
peat
scattering
Peat
albedo (reflectance)

Keywords

  • aerosol
  • biomass burning
  • Indonesia
  • optical properties
  • peat

ASJC Scopus subject areas

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

Cite this

AERONET Remotely Sensed Measurements and Retrievals of Biomass Burning Aerosol Optical Properties During the 2015 Indonesian Burning Season. / Eck, T. F.; Holben, B. N.; Giles, D. M.; Slutsker, I.; Sinyuk, A.; Schafer, J. S.; Smirnov, A.; Sorokin, M.; Reid, J. S.; Sayer, A. M.; Hsu, N. C.; Shi, Y. R.; Levy, R. C.; Lyapustin, A.; Rahman, Muhammad Arif; Liew, Soo Chin; Salinas Cortijo, Santo V.; Li, Tan; Kalbermatter, Daniel; Keong, Kwoh Leong; Yuggotomo, Muhammad Elifant; Aditya, Fanni; Mohamad, Maznorizan; Mahmud, Mastura; Chong, Tan Kok; Lim, Hwee San; Choon, Yeap Eng; Deranadyan, Gumilang; Kusumaningtyas, Sheila D.A.; Aldrian, Edvin.

In: Journal of Geophysical Research: Atmospheres, Vol. 124, No. 8, 27.04.2019, p. 4722-4740.

Research output: Contribution to journalArticle

Eck, TF, Holben, BN, Giles, DM, Slutsker, I, Sinyuk, A, Schafer, JS, Smirnov, A, Sorokin, M, Reid, JS, Sayer, AM, Hsu, NC, Shi, YR, Levy, RC, Lyapustin, A, Rahman, MA, Liew, SC, Salinas Cortijo, SV, Li, T, Kalbermatter, D, Keong, KL, Yuggotomo, ME, Aditya, F, Mohamad, M, Mahmud, M, Chong, TK, Lim, HS, Choon, YE, Deranadyan, G, Kusumaningtyas, SDA & Aldrian, E 2019, 'AERONET Remotely Sensed Measurements and Retrievals of Biomass Burning Aerosol Optical Properties During the 2015 Indonesian Burning Season', Journal of Geophysical Research: Atmospheres, vol. 124, no. 8, pp. 4722-4740. https://doi.org/10.1029/2018JD030182
Eck, T. F. ; Holben, B. N. ; Giles, D. M. ; Slutsker, I. ; Sinyuk, A. ; Schafer, J. S. ; Smirnov, A. ; Sorokin, M. ; Reid, J. S. ; Sayer, A. M. ; Hsu, N. C. ; Shi, Y. R. ; Levy, R. C. ; Lyapustin, A. ; Rahman, Muhammad Arif ; Liew, Soo Chin ; Salinas Cortijo, Santo V. ; Li, Tan ; Kalbermatter, Daniel ; Keong, Kwoh Leong ; Yuggotomo, Muhammad Elifant ; Aditya, Fanni ; Mohamad, Maznorizan ; Mahmud, Mastura ; Chong, Tan Kok ; Lim, Hwee San ; Choon, Yeap Eng ; Deranadyan, Gumilang ; Kusumaningtyas, Sheila D.A. ; Aldrian, Edvin. / AERONET Remotely Sensed Measurements and Retrievals of Biomass Burning Aerosol Optical Properties During the 2015 Indonesian Burning Season. In: Journal of Geophysical Research: Atmospheres. 2019 ; Vol. 124, No. 8. pp. 4722-4740.
@article{acdf7b9fa87148d0b58b72a136e44531,
title = "AERONET Remotely Sensed Measurements and Retrievals of Biomass Burning Aerosol Optical Properties During the 2015 Indonesian Burning Season",
abstract = "An extreme biomass burning event occurred in Indonesia from September through October 2015 due to severe drought conditions, partially caused by a major El Ni{\~n}o event, thereby allowing for significant burning of peatland that had been previously drained. This event had the highest sustained aerosol optical depths (AODs) ever monitored by the global Aerosol Robotic Network (AERONET). The newly developed AERONET Version 3 algorithms retain high AOD at the longer wavelengths when associated with high {\AA}ngstr{\"o}m exponents (AEs), which thereby allowed for measurements of AOD at 675 nm as high as approximately 7, the upper limit of Sun photometry. Measured AEs at the highest monitored AOD levels were subsequently utilized to estimate instantaneous values of AOD at 550 nm in the range of 11 to 13, well beyond the upper measurement limit. Additionally, retrievals of complex refractive indices, size distributions, and single scattering albedos (SSAs) were obtained at much higher AOD levels than possible from almucantar scans due to the ability to perform retrievals at smaller solar zenith angles with new hybrid sky radiance scans. For retrievals made at the highest AOD levels the fine-mode volume median radii were ~0.25–0.30 micron, which are very large particles for biomass burning. Very high SSA values (~0.975 from 440 to 1,020 nm) are consistent with the domination by smoldering combustion of peat burning. Estimates of the percentage peat contribution to total biomass burning aerosol based on retrieved SSA and laboratory measured peat SSA were ~80–85{\%}, in excellent agreement with independent estimates.",
keywords = "aerosol, biomass burning, Indonesia, optical properties, peat",
author = "Eck, {T. F.} and Holben, {B. N.} and Giles, {D. M.} and I. Slutsker and A. Sinyuk and Schafer, {J. S.} and A. Smirnov and M. Sorokin and Reid, {J. S.} and Sayer, {A. M.} and Hsu, {N. C.} and Shi, {Y. R.} and Levy, {R. C.} and A. Lyapustin and Rahman, {Muhammad Arif} and Liew, {Soo Chin} and {Salinas Cortijo}, {Santo V.} and Tan Li and Daniel Kalbermatter and Keong, {Kwoh Leong} and Yuggotomo, {Muhammad Elifant} and Fanni Aditya and Maznorizan Mohamad and Mastura Mahmud and Chong, {Tan Kok} and Lim, {Hwee San} and Choon, {Yeap Eng} and Gumilang Deranadyan and Kusumaningtyas, {Sheila D.A.} and Edvin Aldrian",
year = "2019",
month = "4",
day = "27",
doi = "10.1029/2018JD030182",
language = "English",
volume = "124",
pages = "4722--4740",
journal = "Journal of Geophysical Research",
issn = "2169-9380",
publisher = "American Geophysical Union",
number = "8",

}

TY - JOUR

T1 - AERONET Remotely Sensed Measurements and Retrievals of Biomass Burning Aerosol Optical Properties During the 2015 Indonesian Burning Season

AU - Eck, T. F.

AU - Holben, B. N.

AU - Giles, D. M.

AU - Slutsker, I.

AU - Sinyuk, A.

AU - Schafer, J. S.

AU - Smirnov, A.

AU - Sorokin, M.

AU - Reid, J. S.

AU - Sayer, A. M.

AU - Hsu, N. C.

AU - Shi, Y. R.

AU - Levy, R. C.

AU - Lyapustin, A.

AU - Rahman, Muhammad Arif

AU - Liew, Soo Chin

AU - Salinas Cortijo, Santo V.

AU - Li, Tan

AU - Kalbermatter, Daniel

AU - Keong, Kwoh Leong

AU - Yuggotomo, Muhammad Elifant

AU - Aditya, Fanni

AU - Mohamad, Maznorizan

AU - Mahmud, Mastura

AU - Chong, Tan Kok

AU - Lim, Hwee San

AU - Choon, Yeap Eng

AU - Deranadyan, Gumilang

AU - Kusumaningtyas, Sheila D.A.

AU - Aldrian, Edvin

PY - 2019/4/27

Y1 - 2019/4/27

N2 - An extreme biomass burning event occurred in Indonesia from September through October 2015 due to severe drought conditions, partially caused by a major El Niño event, thereby allowing for significant burning of peatland that had been previously drained. This event had the highest sustained aerosol optical depths (AODs) ever monitored by the global Aerosol Robotic Network (AERONET). The newly developed AERONET Version 3 algorithms retain high AOD at the longer wavelengths when associated with high Ångström exponents (AEs), which thereby allowed for measurements of AOD at 675 nm as high as approximately 7, the upper limit of Sun photometry. Measured AEs at the highest monitored AOD levels were subsequently utilized to estimate instantaneous values of AOD at 550 nm in the range of 11 to 13, well beyond the upper measurement limit. Additionally, retrievals of complex refractive indices, size distributions, and single scattering albedos (SSAs) were obtained at much higher AOD levels than possible from almucantar scans due to the ability to perform retrievals at smaller solar zenith angles with new hybrid sky radiance scans. For retrievals made at the highest AOD levels the fine-mode volume median radii were ~0.25–0.30 micron, which are very large particles for biomass burning. Very high SSA values (~0.975 from 440 to 1,020 nm) are consistent with the domination by smoldering combustion of peat burning. Estimates of the percentage peat contribution to total biomass burning aerosol based on retrieved SSA and laboratory measured peat SSA were ~80–85%, in excellent agreement with independent estimates.

AB - An extreme biomass burning event occurred in Indonesia from September through October 2015 due to severe drought conditions, partially caused by a major El Niño event, thereby allowing for significant burning of peatland that had been previously drained. This event had the highest sustained aerosol optical depths (AODs) ever monitored by the global Aerosol Robotic Network (AERONET). The newly developed AERONET Version 3 algorithms retain high AOD at the longer wavelengths when associated with high Ångström exponents (AEs), which thereby allowed for measurements of AOD at 675 nm as high as approximately 7, the upper limit of Sun photometry. Measured AEs at the highest monitored AOD levels were subsequently utilized to estimate instantaneous values of AOD at 550 nm in the range of 11 to 13, well beyond the upper measurement limit. Additionally, retrievals of complex refractive indices, size distributions, and single scattering albedos (SSAs) were obtained at much higher AOD levels than possible from almucantar scans due to the ability to perform retrievals at smaller solar zenith angles with new hybrid sky radiance scans. For retrievals made at the highest AOD levels the fine-mode volume median radii were ~0.25–0.30 micron, which are very large particles for biomass burning. Very high SSA values (~0.975 from 440 to 1,020 nm) are consistent with the domination by smoldering combustion of peat burning. Estimates of the percentage peat contribution to total biomass burning aerosol based on retrieved SSA and laboratory measured peat SSA were ~80–85%, in excellent agreement with independent estimates.

KW - aerosol

KW - biomass burning

KW - Indonesia

KW - optical properties

KW - peat

UR - http://www.scopus.com/inward/record.url?scp=85059959592&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85059959592&partnerID=8YFLogxK

U2 - 10.1029/2018JD030182

DO - 10.1029/2018JD030182

M3 - Article

VL - 124

SP - 4722

EP - 4740

JO - Journal of Geophysical Research

JF - Journal of Geophysical Research

SN - 2169-9380

IS - 8

ER -