momo的博客

条件性不稳定是一种潜在性不稳定。只有当起始 高度上有较强的抬升力或冲击力，将气块抬升到 自由对流高度(LFC) 以上时，对流运动才能发展，不稳定才表现出来。850hPa上的湿空气沿着干绝热线抬升，到达抬升凝结高度（LCL）后再沿着湿绝热线上升至500hPa具有的气块温度与500hPa环境温度之差。对于海拔较高的地区，不能直接用SI指数，而是应该在低层、高层分别取两个等压面代替850hPa和500hPa。如果850hPa和500hPa之间存在锋面或者逆温层，SI无意义。阈值必须针对不同季节、根据各地实际情

并行计算介绍推动并行化计算能力因素 —— 从晶体管到浮点运算速度摩尔定律：芯片的晶体管数量每18个月增长一倍。内存及磁盘速度的因素总体

Week 4 向量（上）Binary Search 二分查找实现template <typename T>static Rank binSearch(T* A, T const &e, Rank lo , Rank hi){ while(lo < hi){ Rank mi = (lo + hi ) >> 1; // Rank mi = (lo + hi) / 2; if( e < A[mi] ){ // 小于号便于理解，与从小到大次序吻合

Week 4: Statistical Analysis in Python and Project

Week 3 : Advanced Python PandasMerging DataframesPandas IdiomsGroup bySplitApplyMerging DataframesWhen we want to join the DataFrames together, we have some choices to make.outer join: a union. In ...

Week 2 : Basic Processing with PandasIntroductionThe Series Data StructureQuerying a SeriesIntroductionWhen using pandas, Stock Overflow is the best place to ask questions related to pandas.OTHER S...

最近在Coursera平台上学习了密西根大学的Applied Data Science with Python 课程，因此想将所学的内容记录下来。以下是内容链接（目前还在缓慢更新！希望我不要再次摸鱼ʕ •ᴥ•ʔ）Introduction to Data Science in Python: Python Fundamentals...

Introduction to Data Science in Pythonweek 1: Python FundamentalsPython Dates and Timesimport datetime as dtimport time as tmtm.time() #time returns the current time in seconds since the Epoch. (...