1. Ground-based measurements of column-averaged carbon dioxide molar mixing ratios in a peatland fire-prone area of Central Kalimantan, Indonesia
- Author
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Ryuichi Imasu, Isamu Morino, Masahiro Kawasaki, Gen Inoue, Masafumi Ohashi, Yu Someya, Muhammad Arif Rahman, Windy Iriana, Dodo Gunawan, Osamu Kozan, Kenichi Tonokura, and Kazuki Fujimoto
- Subjects
0106 biological sciences ,Multidisciplinary ,Peat ,010504 meteorology & atmospheric sciences ,Water table ,lcsh:R ,lcsh:Medicine ,Tropics ,Atmospheric sciences ,01 natural sciences ,Article ,law.invention ,010601 ecology ,chemistry.chemical_compound ,chemistry ,law ,Carbon dioxide ,Hotspot (geology) ,Environmental science ,lcsh:Q ,Weather radar ,Ecosystem ,lcsh:Science ,Groundwater ,0105 earth and related environmental sciences - Abstract
Tropical peatlands in Indonesia have been disturbed over decades and are a source of carbon dioxide (CO2) into the atmosphere by peat respiration and peatland fire. With a portable solar spectrometer, we have performed measurements of column-averaged CO2 dry-air molar mixing ratios, XCO2, in Palangka Raya, Indonesia, and quantify the emission dynamics of the peatland with use of the data for weather, fire hotspot, ground water table, local airport operation visibility and weather radar images. Total emission of CO2 from surface and underground peat fires as well as from peatland ecosystem is evaluated by day-to-day variability of XCO2. We found that the peatland fire and the net ecosystem CO2 exchange contributed with the same order of magnitude to the CO2 emission during the non-El Niño Southern Oscillation year of July 2014-August 2015.
- Published
- 2018