Weather radar detection of planetary boundary layer and smoke layer top of peatland fire in Central Kalimantan, Indonesia

During the dry period of August–October 2015, a C-band Doppler weather radar of the BMKG station in a fire-prone peatland area, Palangka Raya, detected echoes with reflectivity values between − 19 and + 34 dBZ at a height below 2–3 km and a slant range of 100 km. The MERRA-2/NASA atmospheric reanaly...

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Autores principales: Rahman, Muhammad Arif, Nugroho, Devis Styo, Yamanaka, Manabu D., Kawasaki, Masahiro, Kozan, Osamu, Ohashi, Masafumi, Hashiguchi, Hiroyuki, Mori, Shuichi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7801614/
https://www.ncbi.nlm.nih.gov/pubmed/33431962
http://dx.doi.org/10.1038/s41598-020-79486-6
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author Rahman, Muhammad Arif
Nugroho, Devis Styo
Yamanaka, Manabu D.
Kawasaki, Masahiro
Kozan, Osamu
Ohashi, Masafumi
Hashiguchi, Hiroyuki
Mori, Shuichi
author_facet Rahman, Muhammad Arif
Nugroho, Devis Styo
Yamanaka, Manabu D.
Kawasaki, Masahiro
Kozan, Osamu
Ohashi, Masafumi
Hashiguchi, Hiroyuki
Mori, Shuichi
author_sort Rahman, Muhammad Arif
collection PubMed
description During the dry period of August–October 2015, a C-band Doppler weather radar of the BMKG station in a fire-prone peatland area, Palangka Raya, detected echoes with reflectivity values between − 19 and + 34 dBZ at a height below 2–3 km and a slant range of 100 km. The MERRA-2/NASA atmospheric reanalysis database is used to obtain the vertical profiles of refractive index and equivalent potential temperature of the air. The temporal variation of the radar image is due to the tropical diurnal cycle of planetary boundary layer formation, which is consistent with the results of the database analysis. The echo images are discussed in terms of Bragg scattering of microwaves at the top of the planetary boundary layer. Weather radar monitoring of the fire smoke layer-top images has a potential feasibility to support real-time management of peatland fires.
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spelling pubmed-78016142021-01-12 Weather radar detection of planetary boundary layer and smoke layer top of peatland fire in Central Kalimantan, Indonesia Rahman, Muhammad Arif Nugroho, Devis Styo Yamanaka, Manabu D. Kawasaki, Masahiro Kozan, Osamu Ohashi, Masafumi Hashiguchi, Hiroyuki Mori, Shuichi Sci Rep Article During the dry period of August–October 2015, a C-band Doppler weather radar of the BMKG station in a fire-prone peatland area, Palangka Raya, detected echoes with reflectivity values between − 19 and + 34 dBZ at a height below 2–3 km and a slant range of 100 km. The MERRA-2/NASA atmospheric reanalysis database is used to obtain the vertical profiles of refractive index and equivalent potential temperature of the air. The temporal variation of the radar image is due to the tropical diurnal cycle of planetary boundary layer formation, which is consistent with the results of the database analysis. The echo images are discussed in terms of Bragg scattering of microwaves at the top of the planetary boundary layer. Weather radar monitoring of the fire smoke layer-top images has a potential feasibility to support real-time management of peatland fires. Nature Publishing Group UK 2021-01-11 /pmc/articles/PMC7801614/ /pubmed/33431962 http://dx.doi.org/10.1038/s41598-020-79486-6 Text en © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Rahman, Muhammad Arif
Nugroho, Devis Styo
Yamanaka, Manabu D.
Kawasaki, Masahiro
Kozan, Osamu
Ohashi, Masafumi
Hashiguchi, Hiroyuki
Mori, Shuichi
Weather radar detection of planetary boundary layer and smoke layer top of peatland fire in Central Kalimantan, Indonesia
title Weather radar detection of planetary boundary layer and smoke layer top of peatland fire in Central Kalimantan, Indonesia
title_full Weather radar detection of planetary boundary layer and smoke layer top of peatland fire in Central Kalimantan, Indonesia
title_fullStr Weather radar detection of planetary boundary layer and smoke layer top of peatland fire in Central Kalimantan, Indonesia
title_full_unstemmed Weather radar detection of planetary boundary layer and smoke layer top of peatland fire in Central Kalimantan, Indonesia
title_short Weather radar detection of planetary boundary layer and smoke layer top of peatland fire in Central Kalimantan, Indonesia
title_sort weather radar detection of planetary boundary layer and smoke layer top of peatland fire in central kalimantan, indonesia
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7801614/
https://www.ncbi.nlm.nih.gov/pubmed/33431962
http://dx.doi.org/10.1038/s41598-020-79486-6
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