{
  "report": "ABLAQ-R05",
  "version": "1.0.0",
  "initial_plan_recorded_at": "2026-10-13T00:36:09.400656+00:00",
  "status": "Contemporary analysis design; not external preregistration",
  "design": {
    "question": "Does the square versus elongated courtyard ranking persist under public hourly solar-radiation forcing, and how sensitive is it to forcing product and diffuse-sky assumptions?",
    "point": {
      "latitude_n": 32.3,
      "longitude_e": 36.2,
      "meaning": "Model point near Mafraq, Jordan; not a claimed field site or institutional address"
    },
    "years": [
      2005,
      2023
    ],
    "forcing": [
      "PVGIS 5.3 SARAH3",
      "PVGIS 5.3 ERA5"
    ],
    "selection": "Shared complete 2005-2023 period, fixed before results; no year selection based on outcomes",
    "geometry": {
      "floor_area_m2": 100,
      "aspect_ratios": [
        1,
        2,
        4
      ],
      "wall_heights_m": [
        2.5,
        5,
        7.5
      ],
      "long_axis_bearings_from_north_deg": [
        0,
        45,
        90
      ]
    },
    "primary_endpoint": "Winter area-averaged transmitted horizontal shortwave fraction, with separate direct and diffuse components",
    "secondary_endpoints": [
      "Summer and annual fractions",
      "Between-year ranking differences",
      "Between-product differences",
      "Geometric timing and diffuse anisotropy sensitivity"
    ],
    "winter_definition": "Contiguous December-February, labelled by January year; retain only complete winters 2006-2023",
    "primary_model": "Opaque uniform walls, no reflection, isotropic diffuse sky; solar vectors from NREL SPA implementation, no measured courtyard validation",
    "analysis": "Publish all planned cases, effect differences and year ranges; no statistical confidence claim from two non-independent forcing products",
    "verification": [
      "Independent polygon overlap versus analytical rectangle fraction",
      "Alternative solar-position calculation and effect on key results",
      "Sky quadrature versus analytic view factor",
      "All input timestamps, finite nonnegative irradiance, per-year counts and provider flags",
      "Repeat deterministic pipeline against exact saved input hashes"
    ],
    "protocol_status": "Contemporary analysis plan, not external preregistration"
  },
  "implemented_time_treatment": "SPA at SARAH3 sample timestamps; cosine-weighted within-hour integration for ERA5 hourly means; 5 vs 2.5 minute comparison for all geometries in 2023",
  "sky_sensitivity": "Prescribed axisymmetric L proportional to 1+q sin(elevation), q=-0.8,0,2; equal horizontal diffuse input; not inferred sky states",
  "post_inspection_extension": {
    "reason": "424 unflagged SARAH3 zero-irradiance records above 10 degrees solar elevation across 220 dates",
    "decision": "Retain provider values in the primary calculation; publish both-product matched-day exclusion sensitivity and all affected dates. No imputation."
  }
}