Orbitally-Induced Variations in the Diurnal Cycle of Radiation

轨道引起的辐射昼夜变化

• 批准号: 9121398
• 负责人: Randall Cerveny
• 金额: $ 4.52万
• 依托单位: Arizona State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-03-15 至 1994-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9121398&HistoricalAwards=false
• 关键词: Orbitally; Induced; Variations; Diurnal; Cycle

Interpretation of the climatic impact of variations in the earth's orbital mechanisms has progressed in recent decades to the point where individual mid-monthly caloric insolation totals are now available. Each refinement of these insolation variations has produced new insights into the influence of the earth's orbital mechanisms on the climate of the planet. This is important because disagreement exists about the ability of the current Milankovitch orbital theory of climatic change to explain conflicting signals found in certain climate proxy records. The problems associated with this theory can be evaluated and possibly resolved through further refinements in the orbital influence down to the diurnal level. This study continues that process of refinement by defining the variations in the diurnal (daily) cycle of specific mid-monthly insolation totals by means of a computer simulation model. The results should help to resolve past discrepancies in the paleoclimatic proxy data record. By expanding previous Milankovitch insolation studies to the diurnal scale, this project opens new avenues of investigation and suggests the need for re-examination of previous studies of climatic change. In particular, a more precise record can be established regarding the termination of glacial periods, the occurrence of paleomonsoon events, and the fluctuations in sea- level rise.

气候变化的气候影响的解释 近几十年来，地球的轨道机制取得了进展， 个人每月中旬的热量日射总量 现在可以使用。 每一次太阳的照射 变化产生了新的见解的影响， 地球的轨道机制对地球气候的影响 这是 重要的是，因为存在分歧的能力， 当前米兰科维奇轨道理论的气候变化来解释 在某些气候代理记录中发现的相互矛盾的信号。 的 与这个理论相关的问题可以被评估， 可能通过进一步改进轨道来解决 影响力下降到昼夜水平。 这项研究继续指出， 通过定义昼夜变化的细化过程 具体的每月中旬总日照（日）周期， 一个计算机模拟模型。 结果应该有助于 解决过去在古气候代用数据中的差异 记录 通过将先前的米兰科维奇日射研究扩展到 昼夜尺度，该项目开辟了新的调查途径 并建议重新审查以前的研究， 气候变化 特别是，更精确的记录可以 关于冰川期的终止， 古季风事件的发生，以及海- 水平上升。