International Symposium on Observations and Modeling of Land Surface Water and Energy Exchanges across Scales: Learning from the past and looking to the future

计划中的专题讨论会将侧重于陆地表面水和能量交换的观测和建模方面的进展。它将探讨与业务水文学的社会联系，包括数据同化方法，以改进水资源管理以及干旱和洪水预报的水文学预报。预计研讨会将吸引来自世界各地的150多名与会者，其中包括来自发展中地区的与会者。研讨会的主旨/特邀演讲者将被特别要求反思过去的进展、未来的挑战和正在出现的新机遇，这将成为一篇将成为水文学研究的重要里程碑的综合论文的基础。在过去的大约25年里，与陆地地表水和能量交换有关的一系列尺度上的过程理解、观测和预测的研究得到了扩展。降水的时空变异性与景观的空间异质性相互作用，产生了径流和土壤水分的时空变化场。这种变异性影响到水文研究的许多领域，包括洪水和干旱估计、水资源管理、气候变化影响评估和水质预测。陆地-大气相互作用也影响陆地表面状态和通量之间的联系，以及通过大气表层和边界层的输送以及对流、云和降水的相关调制。这些相互作用在与决策相关的时间尺度上进行，从昼夜(天气)到季节和年际(气候)。计划中的研讨会将回顾和综合这一领域的进展和新知识。这次会议将汇集多代科学家，研究这一问题的范围。水文可预测性及其与陆面记忆的关系、陆地-大气相互作用、全球遥相关和气候可预测性以及人类对水文变异性和极端的影响以及相关的人-水系统反馈将是对水文气象学领域的重大贡献。

The planned symposium will focus on advances in observations and modeling of land surface exchanges of both water and energy. It will explore societal connections to operational hydrology, including data assimilation approaches for improving hydrological forecasting for water management, as well as for drought and flood prediction. It is expected that the symposium will attract more than 150 attendees from around the world, including from developing regions. The symposium keynote/invited speakers will be specifically asked to reflect on past progress, future challenges, and emerging new opportunities, which will form the basis for a synthesis paper that will serve as a major milestone in hydrologic research.In the past ~25 years there has been an expansion of research in process understanding, observations and predictions at a range of scales related to land surface water and energy exchanges. The space-time variability in precipitation interacts with the spatial heterogeneity of landscapes to produce spatially and temporally variable fields of runoff and soil moisture. This variability impacts many areas of hydrologic research including flood and drought estimation, water resource management, climate change impact assessments, and water quality predictions. Land-atmosphere interactions also affect the linkages between land surface states and fluxes, as well as transport through the atmospheric surface and boundary layers and the associated modulation of convection, clouds and precipitation. These interactions operate over decision-relevant time scales, from diurnal (weather) to seasonal and inter-annual (climate). The planned symposium will review and synthesis progress and new knowledge in this field. The meeting will bring together multiple generations of scientists covering the scope of the problem. The results focusing on hydrologic predictability and its relationship to land surface memory, land-atmosphere interactions, global teleconnections and climate predictability as well as the human impacts on hydrologic variability and extremes, and associated coupled human-water system feedbacks will be a significant contribution to the field of hydrometeorology.