Climate model projections of the terrestrial water cycle are often described using simple empirical models (‘indices’) that can mislead. Instead, we should seek to understand climate model projections using simple physical models.

中文翻译：

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变暖世界中的陆地水循环

陆地水循环的气候模型预测通常使用可能误导的简单经验模型（“指数”）来描述。相反，我们应该寻求使用简单的物理模型来理解气候模型的预测。