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Collaborative Research: P2C2--Multi-Century Perspectives on Current and Future Flow in the Lower Missouri River Basin

合作研究：P2C2——密苏里河流域当前和未来流量的多世纪视角

基本信息

批准号：
2002259
负责人：
Erika Wise
金额：
$ 14.03万
依托单位：
University of North Carolina at Chapel Hill
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2020
资助国家：
美国
起止时间：
2020-07-01 至 2024-06-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2002259&HistoricalAwards=false
关键词：
Collaborative Research P2C2 Multi Century

项目摘要

This project aims to provide high-quality, long-term records of past streamflow in the Lower Missouri River (LMR) basin by integrating select gage records, modeled hydrology, and several complementary dendrochronology reconstruction approaches focusing on water-year and seasonal generation of runoff and the improved capture of extremes. This project seeks to: (1) incorporate gage data, estimates of natural flow, and modeled hydrology to develop streamflow calibration series; (2) generate reconstructions of streamflow for key sub-basin gages in the LMR, along with spatial reconstructions of runoff for the basin; (3) evaluate multi-century synoptic climate controls on LMR flow within a broader North American context; and (4) analyze the impact of warming temperatures on future flow patterns.Extreme events (floods and droughts) have been common in the LMR over the past several decades, but the context for understanding the long-term hydroclimate variability impacting flow is limited due to a paucity of long streamflow records that are unaffected by human modification. The LMR basin is one of the few remaining major river systems in the U.S. lacking streamflow reconstructions in large part due to the scarcity of reliable instrumental data for flow calibrationThe potential Broader Impacts (B.I.) include an improved baseline understanding of droughts/floods/pluvials in the Lower Missouri River Basin and the involvement of stakeholders at all levels including water resource managers.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该项目旨在提供高质量的，长期的记录，过去的流量在较低的密苏里州河（LMR）流域，通过集成选择计记录，模拟水文，和几个互补的树木年代学重建方法，侧重于水年和季节性产生的径流和改进的极端捕获。该项目旨在：（1）结合测量数据、天然流量估算和模拟水文学，以开发径流校准系列;（2）重建LMR中关键子流域测量的径流，沿着流域径流的空间重建;（3）在更广泛的北美背景下，评估多世纪天气气候对LMR流量的控制;（4）分析温度升高对未来流态的影响。极端事件（洪水和干旱）在过去几十年里在LMR中很常见，但是理解长期的长期水文气候变化影响流量是有限的，因为缺乏长期的径流记录，不受人类改造。 LMR流域是美国为数不多的主要河流系统之一，在很大程度上缺乏流量重建，这是由于缺乏可靠的流量校准仪器数据。包括对密苏里州河下游流域干旱/洪水/多雨的更好的基线理解，以及包括水资源管理者在内的各级利益相关者的参与。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。