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A MUlti-scale Soil moisture-Evapotranspiration Dynamics study - AMUSED

多尺度土壤湿度-蒸散动力学研究 - AMUSED

基本信息

批准号：
NE/M003086/1
负责人：
Rafael Rosolem
金额：
$ 41.08万
依托单位：
University of Bristol
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2014
资助国家：
英国
起止时间：
2014 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=NE%2FM003086%2F1
关键词：
MUlti scale Soil moisture Evapotranspiration

项目摘要

The ultimate goal of the "A MUlti-scale Soil moisture-Evapotranspiration Dynamics study - AMUSED" project is to identify the spatial/temporal scale-dependency of key dominant processes that control changes in soil moisture and land-atmosphere interactions. Soil moisture plays a major role in the environment/climate system because the transports of water within the land and the land-atmosphere interface are strongly dependent on the state of soil water in a region. Despite its importance, lack of soil moisture measurements at various spatial scales has limited our understanding of how individual physical factors control soil moisture dynamics. This is especially important given recent efforts develop hyper-resolution hydrometeorological models for operational numerical weather and climate predictions.AMUSED employs new innovative technology for soil moisture monitoring using cosmic-rays sensors in combination with land surface modeling, satellite remote sensing, and model diagnostics and data assimilation methods. The new cosmic-ray sensors can measure soil moisture at an unprecedented sub-kilometer scale. The technology has revolutionized the field of hydrometeorology because it provides, for the first time, a unique opportunity to fill the gap between soil moisture observations from traditional point-scale sensors and large-scale from satellite remote sensing products.The proposed 3-year research will focus on the initial COSMOS-UK sites located near the Thames region whose complex interactions of population growth, increases in per capita consumption of resources, changes in land use will likely be impacted by future climate change. The project seeks to identify whether a unified science of land-atmosphere interactions across multiple-scales can be achievable, or if simpler scale-dependent (and sometimes empirical) parameterizations in combination with data assimilation can provide uniquely acceptable predictions of soil moisture dynamics and land surface processes (e.g., evapotranspiration). AMUSED will therefore expand the notion of operational data assimilation implementation by further introducing model diagnostics in order to identify which model structures or parameterizations are likely to affect state estimation via data assimilation. These findings will enhance our current understanding and the representation of soil moisture and surface processes in numerical weather prediction and climate models in the UK.

“多尺度土壤湿度-蒸散动力学研究 - AMUSED”项目的最终目标是确定控制土壤湿度和陆地-大气相互作用变化的关键主导过程的空间/时间尺度依赖性。土壤湿度在环境/气候系统中起着重要作用，因为土地内和陆地-大气界面内的水输送强烈依赖于一个地区土壤水的状态。尽管其重要性，但缺乏不同空间尺度的土壤湿度测量限制了我们对单个物理因素如何控制土壤湿度动态的理解。鉴于最近为业务数值天气和气候预测开发超分辨率水文气象模型的努力，这一点尤其重要。AMUSED 采用宇宙射线传感器结合地表建模、卫星遥感以及模型诊断和数据同化方法进行土壤湿度监测的创新技术。新的宇宙射线传感器可以以前所未有的亚千米尺度测量土壤湿度。该技术彻底改变了水文气象学领域，因为它首次提供了一个独特的机会来填补传统点尺度传感器与大规模卫星遥感产品之间的土壤湿度观测之间的差距。拟议的为期3年的研究将重点关注位于泰晤士河地区附近的最初的COSMOS-UK站点，该地区人口增长、人均资源消耗增加、土地利用变化的复杂相互作用可能会受到未来气候变化的影响。该项目旨在确定是否可以实现跨多个尺度的土地-大气相互作用的统一科学，或者更简单的尺度相关（有时是经验）参数化与数据同化相结合是否可以提供对土壤湿度动态和地表过程（例如蒸散量）的唯一可接受的预测。因此，AMUSED 将通过进一步引入模型诊断来扩展操作数据同化实施的概念，以便识别哪些模型结构或参数化可能通过数据同化影响状态估计。这些发现将增强我们目前对英国数值天气预报和气候模型中土壤湿度和地表过程的理解和表征。

项目成果

期刊论文数量（10）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

A soil moisture monitoring network to characterize karstic recharge and evapotranspiration at five representative sites across the globe

DOI：
10.5194/gi-9-11-2020
发表时间：
2019-08
期刊：
Geoscientific Instrumentation, Methods and Data Systems
影响因子：
0
作者：
Romane Berthelin;M. Rinderer;B. Andreo;A. Baker;D. Kilian;G. Leonhardt;A. Lotz;Kurt Lichtenwoehrer;M. Mudarra;I. Padilla;Fernando Pantoja Agreda;R. Rosolem;A. Vale;A. Hartmann
通讯作者：
Romane Berthelin;M. Rinderer;B. Andreo;A. Baker;D. Kilian;G. Leonhardt;A. Lotz;Kurt Lichtenwoehrer;M. Mudarra;I. Padilla;Fernando Pantoja Agreda;R. Rosolem;A. Vale;A. Hartmann

Opportunities and challenges in using catchment-scale storage estimates from cosmic ray neutron sensors for rainfall-runoff modelling