全部书籍

1 Primary & Middle School Mathematics1–9 年级在线 2 High School Mathematics10–12 年级在线 3 University Mathematics — Year 1本科一年级在线 4 University Mathematics — Year 2本科二年级在线 5 University Mathematics — Year 3本科三年级在线

1 Primary & Middle School Physics1–9 年级在线 2 High School Physics10–12 年级在线 3 University Physics — Year 1本科一年级在线 4 University Physics — Year 2本科二年级在线 5 University Physics — Year 3本科三年级在线

1 School Chemistry — Grades 1 to 121–12 年级在线 2 University Chemistry — Year 1本科一年级在线 3 University Chemistry — Year 2本科二年级在线 4 University Chemistry — Year 3本科三年级在线

1 Primary & Middle School Biology1–9 年级在线 2 High School Biology10–12 年级在线 3 University Biology — Year 1本科一年级在线 4 University Biology — Year 2本科二年级在线 5 University Biology — Year 3本科三年级在线

1 Primary & Middle School Earth and Space Sciences1–9 年级在线 2 High School Earth and Space Sciences10–12 年级在线 3 University Earth and Space Sciences — Year 1本科一年级在线 4 University Earth and Space Sciences — Year 2本科二年级在线 5 University Earth and Space Sciences — Year 3本科三年级在线

1 Markets I: The Ecosystem and Exchange-Traded Markets市场在线 2 Markets II: Rates, FX and Credit市场在线 3 Markets III: Commodities, Energy and Crypto市场在线 4 Quantitative Methods方法在线 5 Derivatives and Volatility衍生品在线 6 Rates, Credit, XVA and Risk利率、信用与风险在线 7 Research Craft: Predictors, Backtests, Measurement, Portfolios研究在线 8 Strategies I: Equities and Futures策略在线 9 Strategies II: Volatility, Relative Value, Macro and the Bank Desks策略在线 10 Microstructure and Execution交易执行在线 11 Market Making and High-Frequency Trading做市在线 12 Machine Learning for Markets机器学习在线 13 Low-Latency Software技术在线 14 Networks, Hardware and Trading Infrastructure技术在线 15 Research, Data and Risk Platforms技术在线 16 The Desk and the Firm公司运营在线 17 The Industry: Firms, Roles and Careers职业发展在线 18 Interviews I: Maths, Probability and Speed职业发展在线 19 Interviews II: Markets, Trading Games and the Final Round职业发展在线 20 Interviews III: Code职业发展在线

全部游戏 Math Fuse Word Reactor Atlas Dash

应用关于

Coach

English Français Español Nederlands Português हिन्दी العربية Bahasa Indonesia 简体中文 বাংলা

登录开始阅读

书籍暂未推出简体中文版——当前显示英文版。

Earth and Space Sciences · 术语表

什么是 Standard atmosphere？

Definition 26.1 University Earth and Space Sciences — Year 1 · 第 26 章 — Structure of the Atmosphere and the Ocean

A standard atmosphere is a profile of temperature, pressure and density against height fixed by convention: dry air of constant molar mass, an ideal gas in hydrostatic balance, with given values at sea level and a temperature that varies linearly with height in successive layers. The 1976 standard atmosphere takes $288.15\,\mathrm{K}$ and $101\,325\,\mathrm{Pa}$ at sea level, $M_0 = 28.9644\,\mathrm{kg}\,\mathrm{kmol}^{-1}$ , $R^* = 8314.32\,\mathrm{J}\,\mathrm{kmol}^{-1}\,\mathrm{K}^{-1}$ and $g_0 = 9.806\,65\,\mathrm{m}\,\mathrm{s}^{-2}$ .

Layer	Base (km)	$\mathrm dT/\mathrm dz$ (K/km)	$T$ at base (K)	$p$ at base (hPa)
1 (troposphere)	0	$-6.5$	288.15	1013.25
2 (stratosphere)	11	0.0	216.65	226.32
3 (stratosphere)	20	$+1.0$	216.65	54.75
4 (stratosphere)	32	$+2.8$	228.65	8.68

Table 26.1. The four lowest layers of the 1976 standard atmosphere. The gradients and the sea-level values are defining values; the temperatures and pressures at the bases are computed from them with Proposition 26.2.

在原文中阅读 →