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高分辨率的城市空气污染映射

Joshua S Apte1,2, Chirag Manchanda1

  • 1Department of Civil and Environmental Engineering, University of California, Berkeley, Berkeley, CA 94720, USA.

Science (New York, N.Y.)
|July 25, 2024
PubMed
概括

了解城市空气质量需要先进的监测. 移动监测和密集的传感器网络提供了对污染动态,人类健康影响和环境正义的补充见解.

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相关概念视频

Linear Approximations01:23

Linear Approximations

For a differentiable function of two variables, linear approximation estimates values near a known point by replacing the curved surface with its tangent plane. Consider the function\begin{equation*}f(x,y)=x^2+3y^2\end{equation*}near the point (2, 1). The exact value at this point is f(2, 1) = 22 + 3(1)2 = 4 + 3 = 7.The linear approximation of f(x, y)) near (a, b) is\begin{equation*}L(x,y)=f(a,b)+f_x(a,b)(x-a)+f_y(a,b)(y-b)\end{equation*}First, compute the partial derivatives: fx(x, y) = 2x and...