ComputaGeophys

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This repo is for my class notes in Computational Geophysics. The main page is https://yufengwa.github.io/ComputaGeophys/

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# ComputaGeophys
This repo is for my class notes in Computational Geophysics.

![demo](https://raw.githubusercontent.com/yufengwa/ComputaGeophys/main/docs/课程笔记/figs/GRACE_globe_animation.gif)

本课程主要介绍计算地球物理的基本方法和工具，旨在让学生掌握基本的计算地球物理方法，能够采用有限差分来实现波动方程、扩散方程的数值模拟，并对计算结果进行分析。同时，本课程注重学生的动手能力，要求学生能够随堂进行基本的Jupyter Notebook文字化编程。

本课程主要介绍有限差分和伪谱法等数值求解方法，并分别介绍椭圆型、抛物型和双曲型偏微分方程的数值计算方法。此外，本课程还将简单介绍基于OpenMP、MPI和CUDA并行的地球物理高性能计算方法。

本课程将会教学生使用Linux操作系统，并采用Anaconda进行Python环境进行管理，使用Jupyter Notebook作为Python的IDE进行文字化编程，安装并使用Madagascar开源地球物理平台。开源软件和开源研究将贯穿本课程的所有内容，鼓励学生进行开源研究探索。

## 授课人员

- 主讲老师: [汪宇锋](https://yufengwa.github.io) - 答疑方式: 计算地球物理课程微信群 (可提前预约当面答疑 - 物探楼411)
- 助教: 刘学港、肖梦姿

## 课程前期要求

- 了解基本的Python、C语言编程；
- 了解部分Linux操作系统（可在课程中学习）；
- 具备基本的地球物理背景知识。

## 本课程目标

- 了解计算地球物理的基本方法和工具；
- 掌握三种不同类型偏微分方程的数值求解方法；
- 了解地球物理高性能计算的基本方法；
- 简单掌握Linux、Jupyter Notebook、Madagascar、并行服务器等工具。

## 课件和授课安排

| Lecture | Date | Topic                                                                           | Exercise |
|----|------|---------------------------------------------------------------------------------|----------|
| 1       | 2021.12.09   | 计算地球物理简介  | [Computers, Waves, Simulations: A Practical Introduction to Numerical Methods using Python](https://www.coursera.org/learn/computers-waves-simulations) |
| 2       | 2021.12.13   | Linux环境与开源地球物理软件 | [Linux(Ubuntu20.04)安装](https://zhuanlan.zhihu.com/p/158363449) [Anaconda安装](https://zhuanlan.zhihu.com/p/94744929) |
| 3       | 2021.12.14   | 基于Madagascar的开源计算地球物理研究 | [Madagascar安装](https://reproducibility.org/wiki/Advanced_Installation#Ubuntu) |
| 4       | 2021.12.16   | 偏微分方程与数值离散  | [GPGN535-Differentiation](https://github.com/jshragge/GPGN535/blob/master/03_Differentiation.ipynb) | 
| 5       | 2021.12.20   | 椭圆型偏微分方程与数值计算  | [GPGN535-Elliptical_PDEs](https://github.com/jshragge/GPGN535/blob/master/06_Elliptical_PDEs.ipynb) |
| 6       | 2021.12.21   | 抛物型偏微分方程与数值计算   | [GPGN535-Parabolic_PDEs](https://github.com/jshragge/GPGN535/blob/master/07_Parabolic_PDEs.ipynb) |
| 7       | 2021.12.23   | 双曲型偏微分方程与数值计算  | [GPGN535-Hyperbolic_PDEs](https://github.com/jshragge/GPGN535/blob/master/08_Hyperbolic_PDEs.ipynb)  | 
| 8       | 2021.12.27   | 地球物理高性能并行计算 | [cuQRTM](https://github.com/yufengwa/cuQRTM) | 
| 9       | TBD  | 大作业成果展示  | [Presentation with Jupyter Notebook and RISE](https://www.youtube.com/watch?v=T7rVvK4Vc0M) |

## 参考资料

- [**Madagascar**](https://reproducibility.org/wiki/Main_Page) is an open-source software package for multidimensional data analysis and reproducible computational experiments.
- [**SeismicUnix**](https://en.wikipedia.org/wiki/Seismic_Unix) is an open source seismic utilities package which was supported by the Center for Wave Phenomena (CWP) at the Colorado School of Mines (CSM). 
- [**CIG**](https://geodynamics.org/cig/) is a community-driven organization that advances Earth science by developing and disseminating software for geophysics and related fields.
- [**COMPUTATIONAL SEISMOLOGY: A PRACTICAL INTRODUCTION**](http://www.computational-seismology.org/) is an introductory text to a range of numerical methods used today to simulate time-dependent processes in Earth science, physics, engineering, and many other fields.
- [**GPGN535**](https://github.com/jshragge/GPGN535) This course develops the principles of geophysical computing in the context of simulating and validating numerical solutions to the types of partial differential equations commonly found in geophysical investigations.

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