Collaborative Research: The California Precipitation Dipole: Spatiotemporal Variability and Forcings Over the Past 3000 Years

加州面临着持续不断的淡水问题。这一问题因其复杂的水地理环境而加剧。换句话说，加州在哪里接收降雨量与它接收到的降雨量一样重要。这个项目将调查过去3000年来加州在哪里下雨以及为什么下雨的历史。了解加州在哪里下雨以及为什么下雨，对于水管理、储水基础设施以及将水从过剩地区输送到短缺地区至关重要。作为美国最大的州经济，加利福尼亚州的健康对美国的健康至关重要。这项提议的目的是调查加州的降水历史，并将其与过去3000年来南北反相降水制度的位置和强度有关。为了实现这一目标，将从三个湖泊中提取几管泥浆。就像一本历史书，这些泥浆管子记录了加州的降水历史。该小组将研究泥浆的物理、化学和生物特性，以推断洪水、干旱、植被变化和火灾活动的历史。对来自科学、技术、工程和数学等历来代表性不足的群体的学生的培训是这项研究的关键组成部分。

California faces a constant fresh water problem. This problem is intensified by its complex water geography. In other words, where California receives precipitation is as important as how much precipitation it receives. This project will investigate the history of where and why it rains in California over the past 3000 years. Knowing where and why it rains in California is critical to water management, water storage infrastructure, and water conveyance from regions of excess to regions of deficit. As the largest state economy in the United States, the health of California is important to the health of the United States. This proposal's goal is to investigate California's precipitation history as related to the position and strength of its North-South antiphased precipitation regime over the past 3000 years. To accomplish this goal, tubes of mud will be extracted from three lakes. Like a history book, these tubes of mud record California's precipitation history. The team will study the mud's physical, chemical, and biological properties to infer a history of floods, droughts, vegetation change, and fire activity. Training of students from groups historically underrepresented in Science, Technology, Engineering and Math is a key component of this study.