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Nordic Evidence Surface Map Publication Contract

Nordic is the regional detail surface. It keeps the shared human and animal evidence layers, then adds Nordic-only environmental, archaeology, boundary, and fieldwork overlays that remain interpretable at this scale.

Engine Decision

One shared map document engine serves every published scope. Scope differences must be encoded in governed bounds, layer eligibility, default basemap, and reader caveats rather than hidden in separate renderer forks.

Scope Posture

  • Scope key: nordic
  • Scope kind: region
  • Parent scope: europe_plus
  • Default basemap: street
  • Default distance circle diameter: 20 km

The opening extent stays tight on Nordic countries so lake, site, and archaeology context reads as map content rather than background noise.

Layer Inventory

Layer Publication role Source Coverage posture Visible records
AADR-v66 aDNA samples shared_world_scale_layer Allen Ancient DNA Resource Country assignment follows the AADR political entity field. 1231
Fieldwork documentation scope_specific_overlay Bijux fieldwork Observed sampling location documented on 2026-02-26 at Lyngsjön Lake. 1
LandClim pollen sites scope_specific_overlay LandClim Pollen sequences staged from the LandClim normalization bundle. 490
Neotoma pollen sites scope_specific_overlay Neotoma Pollen and paleoecology sites staged from the Neotoma normalization bundle. 193
SEAD sites scope_specific_overlay SEAD Environmental archaeology sites staged from the SEAD normalization bundle. 2069
Sweden archaeology site discovery scope_specific_overlay SEAD with RAÄ density context Every geolocated Swedish SEAD site, represented by each linked numeric chronology interval or by one explicitly unresolved temporal record. 9727
Cattle aDNA site evidence (wild or progenitor context) shared_world_scale_layer Tracked animal aDNA localities Mapped animal features staged from traceable evidence rows built from species-owned sample, site, coordinate, and citation surfaces. 4
Sheep aDNA site evidence (domesticated core) shared_world_scale_layer Tracked animal aDNA localities Mapped animal features staged from traceable evidence rows built from species-owned sample, site, coordinate, and citation surfaces. 2
Pig aDNA site evidence (domesticated core) shared_world_scale_layer Tracked animal aDNA localities Mapped animal features staged from traceable evidence rows built from species-owned sample, site, coordinate, and citation surfaces. 2
Cattle source-sample chronology shared_world_scale_layer Governed animal project sample chronology 5
Goat source-sample chronology shared_world_scale_layer Governed animal project sample chronology 0
Horse source-sample chronology shared_world_scale_layer Governed animal project sample chronology 3
Cat source-sample chronology shared_world_scale_layer Governed animal project sample chronology 0
Sheep source-sample chronology shared_world_scale_layer Governed animal project sample chronology 4
Pig source-sample chronology shared_world_scale_layer Governed animal project sample chronology 2
Neotoma sample pollen-presence context scope_specific_overlay Neotoma Dated source samples with positive reported pollen observations; not reviewed pollen-sum events. 9988
Neotoma literal ecological codes scope_specific_overlay Neotoma Literal source ecological codes without cross-source equivalence or propagation claims. 25165
Neotoma exact source taxa scope_specific_overlay Neotoma Exact source taxon identities without accepted ecological classification or propagation claims. 215751
Country boundaries region_filtered_layer Natural Earth country boundaries Published country outlines used for framing and scope-aware map filtering. 4
LandClim REVEALS time-window grids scope_specific_overlay LandClim Time-window-specific REVEALS grid estimates from published LandClim PANGAEA datasets. 2515

Filter Surfaces

  • Country filters
  • Layer toggles
  • Search
  • Time window
  • Distance circles
  • Basemap switch
  • Accepted scientific comparison when qualified classifications are available
  • Neotoma source-sample, literal-code, and exact-label chronology
  • Oldest-to-present BP window navigation and playback
  • PANGAEA 937075 exact-window modeled context
  • Modeled-context visible-frame export
  • Animal species focus when animal layers are present
  • Animal scope when animal layers are present
  • Animal coordinate confidence when animal layers are present
  • Animal temporal windows when animal layers are present
  • Nordic animal leads only when animal layers are present

Legend Sections

  • Human evidence markers
  • Animal evidence markers when present
  • Context overlay symbols
  • Density ramp when archaeology density is visible
  • Nordic environmental context markers
  • Nordic boundary and archaeology overlays
  • Fieldwork documentation marker when checked-in gallery media is present

Caveats

  • Nordic-specific overlays describe the current Nordic recovery slice and must not be generalized outward.
  • Animal points can remain visible even when their Nordic relevance is regional rather than one exact country.
  • Approximate or inferred coordinates remain visible with explicit warnings instead of being silently dropped.