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Designing a better weather display

机译：设计更好的天气显示

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Weather maps commonly display several variables at once, usually a subset of the following: atmospheric pressure, surface wind speed and direction, surface temperature, cloud cover, and precipitation. Most often, a single variable is mapped separately and occasionally two are shown together. But sometimes there is an attempt to show three or four variables with a result that is difficult to interpret because of visual interference between the graphical elements. As a design exercise, we set the goal of finding out if it is possible to show three variables (two 2D scalar fields and one 2D vector field) simultaneously so that values can be accurately read using keys for all variables, a reasonable level of detail is shown, and important meteorological features stand out clearly. Our solution involves employing three perceptual "channels": a color channel, a texture channel, and a motion channel in order to perceptually separate the variables and make them independently readable. We describe a set of interactive weather displays, which enable users to view two meteorological scalar fields of various kinds and a field showing wind patterns. To evaluate the method, we implemented three alternative representations each simultaneously showing temperature, atmospheric pressure, wind speed, and direction. Both animated and static variants of our new design were compared to a conventional solution and a glyph-based solution. The evaluation tested the abilities of participants both to read values using a key and to see meteorological patterns in the data. Our new scheme was superior, especially in the representation of wind patterns using the motion channel. It also performed well enough in the representation of pressure using the texture channel to suggest it as a viable design alternative.
机译：天气图通常一次显示几个变量，通常是以下变量的子集：大气压力，地表风速和风向，地表温度，云量和降水。通常，单个变量是单独映射的，偶尔两个变量一起显示。但是有时会试图显示三个或四个变量，结果由于图形元素之间的视觉干扰而难以解释。作为设计工作，我们的目标是确定是否可以同时显示三个变量（两个2D标量场和一个2D矢量场），以便可以使用所有变量的键准确地读取值，并具有合理的详​​细程度显示，并且重要的气象特征清楚地突出了。我们的解决方案涉及使用三个可感知的“通道”：颜色通道，纹理通道和运动通道，以在感知上分离变量并使它们独立可读。我们描述了一组交互式天气显示，使用户能够查看两个各种气象标量场和一个显示风型的场。为了评估该方法，我们实现了三个替代表示，每个表示同时显示温度，大气压力，风速和方向。我们将新设计的动画和静态变体与常规解决方案和基于字形的解决方案进行了比较。该评估测试了参与者使用键读取值以及查看数据中气象模式的能力。我们的新方案非常出色，特别是在使用运动通道表示风型方面。使用纹理通道在压力表示方面也表现出色，表明它是可行的设计替代方案。

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