Affiliation:
1. Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan
2. Center for Environmental Science in Saitama, Kazo, Saitama, Japan
Abstract
Abstract
Southeast Asian tropical rain forests in the Maritime Continent are among the most important biomes in terms of global and regional water cycling. How land use and land cover change (LULCC) relating to deforestation and forest degradation alter the local hydroclimate over the island of Borneo is examined using the Weather Research and Forecasting (WRF) Model with an appropriate land surface model for describing the influence of changes in the vegetation status on the atmosphere. The model was validated against precipitation data from Tropical Rainfall Measuring Mission (TRMM) satellite 3B42 measurements. A main novelty in this analysis is that the diurnal cycle of precipitation over the island, which is a dominant climatic characteristic of the Maritime Continent, was successfully reproduced. To clarify the impact of the LULCC on the precipitation regimes over the island, numerical experiments were performed with the model that demonstrated the following. Deforestation that generates high albedo areas, such as bare lands, would induce a reduction in precipitation because of reductions in evapotranspiration, convection, and horizontal atmospheric moisture inflow. On the other hand, a decrease in evapotranspiration efficiency without changing the surface albedo could increase precipitation due to an increase in convection and horizontal atmospheric moisture inflow in compensation for the decrease in evapotranspiration. In detail, on the Maritime Continent, through changes in the land surface heating process and land–sea breeze circulation, the LULCC would impact the amplitude of the diurnal precipitation cycle in each region as defined according to the distance from the coast, resulting in changes in the precipitation regimes over the island.
Funder
Ministry of Education, Culture, Sports, Science and Technology
Japan Society for the Promotion of Science
Publisher
American Meteorological Society
Reference53 articles.
1. Simulation of diurnal rainfall variability over the Maritime Continent with a high-resolution regional climate model;Bhatt;J. Meteor. Soc. Japan,2016
2. Very high resolution rainfall patterns measured by TRMM precipitation radar: Seasonal and diurnal cycles;Biasutti;Climate Dyn.,2012
3. Forests and climate change: Forcing, feedbacks, and the climate benefits of forests;Bonan;Science,2008
4. Extreme differences in forest degradation in Borneo: Comparing practices in Sarawak, Sabah, and Brunei;Bryan;PLoS One,2013
5. Contributions to accelerating atmospheric CO2 growth from economic activity, carbon intensity, and efficiency of natural sinks;Canadell;Proc. Natl. Acad. Sci. USA,2007
Cited by
20 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献