A global model study of the impact of land-use change in Borneo on atmospheric composition

A global model study of the impact of land-use change in Borneo on atmospheric composition
复制标题

婆罗洲土地利用变化对大气成分影响的全球模型研究

DOI:
--
复制
发表时间:
2013
期刊:
影响因子:
--
通讯作者:
J. Pyle
J. Pyle
中科院分区:
--
文献类型:
--
作者:
N. Warwick;A. Archibald;K. Ashworth;J. Dorsey;P. Edwards;D. Heard;B. Langford;James D. Lee;P. Misztal;L. Whalley;J. Pyle

文献摘要

参考文献

被引文献

相似文献

抽象的。在这项研究中,使用了剑桥 p-TOMCAT 化学输运模型的高分辨率版本,以及 2008 年 NERC 资助的氧化剂和粒子光化学过程 (OP3) 项目的测量数据,以研究婆罗洲油棕扩张对大气成分的潜在影响。 OP3 测量期间运行了多个模型排放场景,其中包含来自全球数据集和本地通量测量的排放。相对于使用没有 OH 回收的 MEGAN 异戊二烯排放,在 p-TOMCAT 中使用 OP3 观察到的异戊二烯通量和 OH 回收化学显着改善了建模和观察到的异戊二烯和 OH 浓度之间的比较。然而,通过固定婆罗洲上空边界层异戊二烯浓度以遵循 OP3 观测结果,在不使用 HO x 循环的情况下也实现了类似的改进。在极端假设的未来情景中,整个婆罗洲都转变为油棕种植园,评估了模型对与土地利用变化相关的异戊二烯和氮氧化物排放变化的敏感性。这种情景表明,婆罗洲土地利用变化导致的地表臭氧增加上限为 70%,不包括其他地方未来排放变化的影响。尽管这种情况下最大的变化直接发生在婆罗洲上空,但该模型还计算了婆罗洲顺风和自由对流层中 O 3 、 OH 和其他物种的显着区域变化。
Abstract. In this study, a high resolution version of the Cambridge p-TOMCAT chemical transport model is used, along with measurement data from the 2008 NERC-funded Oxidant and Particle Photochemical Processes (OP3) project, to examine the potential impact of the expansion of oil palm in Borneo on atmospheric composition. Several model emission scenarios are run for the OP3 measurement period, incorporating emissions from both global datasets and local flux measurements. Using the OP3 observed isoprene fluxes and OH recycling chemistry in p-TOMCAT substantially improves the comparison between modelled and observed isoprene and OH concentrations relative to using MEGAN isoprene emissions without OH recycling. However, a similar improvement was also achieved without using HO x recycling, by fixing boundary layer isoprene concentrations over Borneo to follow the OP3 observations. An extreme hypothetical future scenario, in which all of Borneo is converted to oil palm plantation, assessed the sensitivity of the model to changes in isoprene and NO x emissions associated with land-use change. This scenario suggested a 70% upper limit on surface ozone increases resulting from land-use change on Borneo, excluding the impact of future changes in emissions elsewhere. Although the largest changes in this scenario occurred directly over Borneo, the model also calculated notable regional changes of O 3 , OH and other species downwind of Borneo and in the free troposphere.
DOI: 10.5194/acp-10-4343-2010
发表时间: 2010-01-01
影响因子: 6.3
作者:
Misztal, P. K.;Owen, S. M.;Cape, J. N.
通讯作者: Cape, J. N.
DOI: 10.5194/acpd-10-18197-2010
发表时间: 2010
期刊: --
影响因子: --
作者:
Pugh T
通讯作者: Pugh T