Module atmosphere 

Enhanced atmospheric calculations for ballistics.

This module provides Rust-accelerated implementations of atmospheric calculations with full ICAO Standard Atmosphere support for improved accuracy at all altitudes.

Structs

AtmoSock

Downrange-segmented atmosphere handler (MBA-1137), the density analogue of crate::wind::WindSock.

Functions

calculate_air_density_cimp

Enhanced air density calculation using CIPM formula with ICAO atmosphere.

calculate_air_density_cipm

Legacy function name for backwards compatibility

calculate_atmosphere

Enhanced atmospheric calculation with ICAO Standard Atmosphere.

get_direct_atmosphere

Direct atmosphere calculation for simple cases.

get_local_atmosphere

Enhanced local atmospheric calculation with variable lapse rates.

get_local_atmosphere_humid

Humidity-aware companion to get_local_atmosphere: identical local density, but the speed of sound is the moist-air value (moist_speed_of_sound) evaluated at the LOCAL temperature and pressure.

moist_speed_of_sound

Speed of sound using an ideal-gas moist-air mixture approximation, first order in the water-vapor mole fraction.

resolve_station_conditions

Return the station temperature and pressure that calculate_atmosphere will use after applying the default-at-altitude resolution rules.

resolve_station_pressure

Resolve the station-pressure override for an air-density calculation.

resolve_station_temperature

Resolve the temperature override for an air-density calculation, mirroring resolve_station_pressure.

Type Aliases

AtmoSegment

A single downrange-referenced atmosphere zone: (temp_c, pressure_hpa, humidity_percent, until_distance_m).