Doubling of annual ammonia emissions from the peat fires in Indonesia during the 2015 El Nino

作者：Whitburn S^*; Van Damme M; Clarisse L; Turquety S; Clerbaux C; Coheur P F

来源：Geophysical Research Letters, 2016, 43(20): 11007-11014.

DOI：10.1002/2016GL070620

In the autumn of 2015, thousands of square kilometers of forest and peatlands in Indonesia went up in flames. Among the primary species emitted by fires, ammonia (NH3) is of special relevance for air quality. Here we derive daily and total NH3 emission fluxes over the affected area using satellite measurements for the years 2008-2015. The 2015 fires emitted an estimated 1.4-8.2Tg of NH3 (with a maximum of 0.06-0.33Tgd(-1)). On an annual basis, the 2015NH(3) emissions are a factor 2-3 larger than in the previous 7years. We derive NH3 emission factors for peat soils, which are found to be 2.5-8 times lower than those used in the GFASv1.2 emission inventory but in excellent agreement with those reported in other recent studies. Finally, we estimate that 3.28 x 10(9)m(3) peat soil was consumed during these 2015 fires, corresponding to an average burn depth of 39cm.

• 出版日期2016-10-28