• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of hydrometeorology >Biophysical Impact of Land-Use and Land-Cover Change on Subgrid Temperature in CMIP6 Models
【24h】

Biophysical Impact of Land-Use and Land-Cover Change on Subgrid Temperature in CMIP6 Models

机译：Biophysical Impact of Land-Use and Land-Cover Change on Subgrid Temperature in CMIP6 Models

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相关主题

摘要

In this study, we investigate the air temperature response to land-use and land-cover change (LULCC; cropland expansion and deforestation) using subgrid land model output generated by a set of CMIP6 model simulations. Our study is motivated by the fact that ongoing land-use activities are occurring at local scales, typically significantly smaller than the resolvable scale of a grid cell in Earth system models. It aims to explore the potential for a multimodel ap-proach to better characterize LULCC local climatic effects. On an annual scale, the CMIP6 models are in general agree-ment that croplands are warmer than primary and secondary land (psl; mainly forests, grasslands, and bare ground) in the tropics and cooler in the mid-high latitudes, except for one model. The transition from warming to cooling occurs at ap-proximately 40 degrees N. Although the surface heating potential, which combines albedo and latent heat flux effects, can explain reasonably well the zonal mean latitudinal subgrid temperature variations between crop and psl tiles in the historical simu-lations, it does not provide a good prediction on subgrid temperature for other land tile configurations (crop vs forest; grass vs forest) under Shared Socioeconomic Pathway 5-8.5 (SSP5-8.5) forcing scenarios. A subset of simulations with the CESM2 model reveals that latitudinal subgrid temperature variation is positively related to variation in net surface short-wave radiation and negatively related to variation in the surface energy redistribution factor, with a dominant role from the latter south of 30 degrees N. We suggest that this emergent relationship can be used to benchmark the performance of land surface parameterizations and for prediction of local temperature response to LULCC.

著录项

获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号