Emagram¶

An emagram is one of four thermodynamic diagrams used to display temperature lapse rate and moisture content profiles in the atmosphere.

Version: v1 · 2026-09-28 · History
Domain-specific #: 9217
Domain group: Natural Sciences
Origin domain: Geology & Earth Sciences
Subdomains: Meteorology, Atmospheric Thermodynamics → Geology & Earth Sciences

Core Idea¶

Emagram is treated here as the recurring natural science, engineering, and health identity summarized by this source-grounded definition: An emagram is one of four thermodynamic diagrams used to display temperature lapse rate and moisture content profiles in the atmosphere. An emagram is one of four thermodynamic diagrams used to display temperature lapse rate and moisture content profiles in the atmosphere. The emagram has axes of temperature (T) and pressure (p). In the emagram, the dry adiabats make an angle of about 45 degrees with the isobars, isotherms are vertical and isopleths of saturation mixing ratio.

Scope of Application¶

Documented setting. An emagram is one of four thermodynamic diagrams used to display temperature lapse rate and moisture content profiles in the atmosphere.
Documented setting. First devised in 1884 by Heinrich Hertz, the emagram is used primarily in European countries.
Documented setting. Other countries use similar thermodynamic diagrams for the same purpose.
Documented setting. In the emagram, the dry adiabats make an angle of about 45 degrees with the isobars, isotherms are vertical and isopleths of saturation mixing ratio are almost straight and vertical.
Documented setting. Usually, temperature and dew point data from radiosondes are plotted on these diagrams to allow calculations of convective stability or Convective Available Potential Energy (CAPE).

Clarity¶

A clear use of Emagram names the carrier, the operative relation, and the conditions under which the source treats the identity as present. The minimal definition is An emagram is one of four thermodynamic diagrams used to display temperature lapse rate and moisture content profiles in the atmosphere.

Manages Complexity¶

Emagram compresses multiple natural science, engineering, and health details into a stable diagnostic relation. The source shows both the central mechanism—an emagram is one of four thermodynamic diagrams used to display temperature lapse rate and moisture content profiles in the atmosphere.—and the practical consequence—emagram is the first atmospheric thermodynamic diagram. This compression makes cases comparable while leaving parameters, conventions, exceptions, and evidential quality explicit.

Abstract Reasoning¶

Type the carrier. Identify the natural science, engineering, and health entities to which the claim applies.
State the relation. Use the source-grounded identity: An emagram is one of four thermodynamic diagrams used to display temperature lapse rate and moisture content profiles in the atmosphere.
Check operation and conditions. In the emagram, the dry adiabats make an angle of about 45 degrees with the isobars, isotherms are vertical and isopleths of saturation mixing ratio are almost straight and vertical.
Demand recognition evidence.

Knowledge Transfer¶

Within the home domain. Knowledge about Emagram transfers literally when a new case preserves the same carrier type, relation, and recognition test. An emagram is one of four thermodynamic diagrams used to display temperature lapse rate and moisture content profiles in the atmosphere. First devised in 1884 by Heinrich Hertz, the emagram is used primarily in European countries. Beyond the home domain. No canonical parent is asserted for Emagram. An outside case receives the specialist name only when the same typed roles and rejection conditions can be filled literally; otherwise the comparison remains an analogy pending later graph densification.

Neighborhood in Abstraction Space¶

Emagram sits in a sparse region of the domain-specific corpus (91^st percentile for distinctiveness): few abstractions share its structure, so a faithful description tends to retrieve it precisely.

Family — Atmospheric & Meteorological Phenomena (16 abstractions)

Nearest neighbors

Computed from structural-signature embeddings · 2026-10-08