# 大气压强随高度变化 - Atmospheric Pressure vs Altitude

使用指数衰减模型的大气压强随高度变化的交互式可视化

> 标准页面: https://elysiatools.com/zh/visualizations/atmospheric-pressure

- **分类:** Physics

## 概述

Interactive visualization of atmospheric pressure variation with altitude using exponential decay model. Features fundamental barometric formula: P(h) = P₀·e^(-h/H) where P₀ = 101.325 kPa (sea level pressure), H = 8.5 km (scale height), and h is altitude. Density formula: ρ(h) = ρ₀·e^(-h/H) where ρ₀ = 1.225 kg/m³ (sea level air density). Earth and atmosphere cross-section visualization showing atmospheric layers (troposphere 0-12 km, stratosphere 12-20 km) with altitude scale 0-20 km and current altitude indicator. Real-time pressure gauge displaying current pressure reading with needle animation. Pressure vs altitude curve showing exponential decay with current operating point. Density vs altitude curve showing parallel exponential decay. Key altitude reference points: Sea Level (0 km, 101.3 kPa), Mt. Everest (8.85 km, 31.4 kPa), Airplane Cruise Altitude (11 km, 20.2 kPa), and Stratosphere (20 km, 5.5 kPa). Interactive controls: altitude slider (0-20 km), temperature adjustment (-50°C to 40°C) affecting scale height, atmospheric model parameters (scale height H, sea level pressure P₀, sea level density ρ₀), visualization toggles (pressure curve, density curve, key points, gauge), and animation mode for continuous ascent/descent. Quick presets: Sea Level, Mt. Everest, Airplane Cruise, Stratosphere, and Custom Parameters. Real-time displays: current altitude, pressure, density, and gauge needle position. Educational content covering exponential decay principles, scale height concept (pressure drops to 37% at 8.5 km), sea level standard atmosphere, half-pressure altitude (5.9 km), human physiological impact (hypoxia, acclimatization, death zone above 8000 m, aircraft pressurization), real-world applications (aviation, mountain climbing, weather forecasting, altitude training), model accuracy and limitations (ISA model, temperature variation, weather effects), and historical context (Torricelli's barometer 1643, Pascal's experiments 1648, International Standard Atmosphere 1950s). Multi-language support (zh, en, fr, de, es, pt, ru).

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