Submodel map

Part 7 of the ODD. This page organizes coupling and core equations; the complete numerical specification in this delivery covers the surface field. Other components retain details in the code and technical source notes.

Chemistry, decisions and memory

Surface reaction–diffusion: conservative diffusion, upwind advection and exponential decay on an X/Z grid. Air humidity modulates D/lambda; wind transports the field. Deposits are capped; transport has no artificial saturation. The underground graph uses another solver and reference channels.

Graph odor: quantities per node; fluxes proportional to quantity/volume differences. Chamber-type sources are replenished to their reference; evaporation and emission have counters. These marks are imposed environmental features.

ACO: weight proportional to tau^alpha × eta^beta, a 1e-6 signal floor, logarithmic normalization and uniform epsilon mixing. Function defaults: alpha 1.4/beta 2/ epsilon 0.05; callers can modulate values. The function samples rather than always choosing the maximum. Stimulus/threshold uses S²/(S²+theta²), with numerical limits and age, caste and activity factors; tasks are reconsidered at intervals. Routing uses adjacent sensing and bounded visit memory.

Body, terrain and excavation

Movement combines desire, social repulsion, antennal contact, load priority, reversal and recovery. Support is queried from the implicit field and obstacles; a route does not authorize teleportation. The camera presents that body.

Excavation removes local material, carries and deposits it; widening/branching and repair depend on tasks. Aggregates represent soil parcels. Repose, moisture, composition, compaction, span and damage modulate sliding/support through heuristics. This is neither DEM of all grains nor calibrated geotechnical analysis.

Water, heat and gases

Surrounding porous water exchanges conservatively between cells through saturation gradients and a reduced gravitational term. Flow is bounded by donor/capacity; rain/pond/evaporation/plants enter the balances. Heat diffuses and exchanges at boundaries; this is not a full Richards, vapor, ice or thermodynamics solver.

Gases use a volume network and flow Q_ab=G_ab×(p_a−p_b+H_ab). Conductance scales with radius^4/length and opening; entrance pressure depends on wind. Diffusion/ advection and boundaries transport quantities; respiration consumes O2 and produces CO2 at an illustrative ratio of 0.8. New cells record geometric exchange without counting it as ventilation. A bottleneck affects the next solver update.

Collective life and reproduction

Nutrition transfers food from finite sources, reserves and crops; contacts share rather than clone resources. Brood/waste have a carrier and destination. Chamber stocks, spoilage and transport depend on profile.

Founding: flight, encounter, wing shedding, shelter selection/excavation, plug and nanitics. Claustral and semiclaustral budgets differ. Maternal reserves, thermal development, diapause/cocoon memory, spermatheca and mortality risk are optional/ versioned; do not indiscriminately add rules from old profiles. Genes/parentage and mutations affect phenotypes with demonstration limits and costs.

Ecology, learning and observer

Plants respond to water/temperature/light; materials have moisture/decomposition. Predators use bounded movement and pursuit. Aphids/honeydew, protection, mimetic caterpillars and odor/territory relationships use local exploratory rules. A complete food web or realistic taxonomic diversity is not guaranteed.

Optional RL has project-defined rewards and comparisons with baselines. Forecasts copy the world or extrapolate counts; they never change the observed past. CSVs store actual tick readings, not values from simulated futures.

Provenance and limits

Demonstration parameters, reference experimental conditions and unimplemented proposals are distinct catalog categories. Using a known equation does not automatically transfer its parameters or empirical validation. Documentation must change when formulas, boundaries, ordering or profiles change.