Tracking the Influence of Irrigation on Land Surface Fluxes and Boundary Layer Climatology
Tracking the Influence of Irrigation on Land Surface Fluxes and Boundary Layer Climatology
复制标题
DOI：
10.1111/j.1936-704x.2013.03170.x
复制
发表时间：
2013-12
影响因子：
0.7
通讯作者：
V. Sridhar
中科院分区：
文献类型：
--
作者：
V. Sridhar
当陆地表面改变为气候系统的一级变化时，它会影响潜热通量和蒸发冷却，从而改变表面温度和边界层发展。模拟与地表变化相关的过程需要一个跨学科的方法，其中的水文过程，如蒸散和土壤水分的影响，由人类引起的变化连接到大气系统。诺亚陆面模式（LSM）加上天气研究和预报（WRF）模式进行了修改，以代表在蛇河流域灌溉。通过模拟生长季节的地表能量平衡分量和边界层，我们比较了灌溉和非灌溉（对照）模拟之间的差异，以评估灌溉引起的冷却在气候学上的差异。差异，如增加潜热通量从灌溉地区和降低潜在的温度，风速和行星边界层高度是显而易见的。这项研究重申了确定土地和大气之间关系的人为过程对当地和区域天气和气候的重要性。
When the land surface is altered as a first order change in the climate system, it affects the latent heat flux and evaporative cooling, thereby altering the surface temperature and boundary layer development. Modeling the processes associated with land surface alteration requires an interdisciplinary approach in which the hydrologic processes such as evapotranspiration and soil moisture influenced by human-induced changes are connected to the atmospheric system. The Noah Land Surface Model (LSM) coupled with the Weather Research and Forecasting (WRF) model was modified to represent irrigation in the Snake River basin. By simulating the surface energy balance components and the boundary layer in the growing season, we compared the differences between irrigation and no-irrigation (control) simulations to assess the differences in climatology attributed to irrigation-induced cooling. Differences such as increased latent heat flux from the irrigated areas and decreased potential temperature, wind speed, and planetary boundary layer height were evident. This study reiterates the importance of the anthropogenic processes defining the nexus between the land and atmosphere on the local and regional weather and climate.