{
 "name": "Sarasota Pool Deck Surface Temperature Study",
 "version": "0.1-protocol",
 "status": "methodology published; measurements pending",
 "publisher": "Sarasota Concrete (sarasotaconcrete.com)",
 "license": "CC BY 4.0",
 "published": "2026-09-10",
 "planned_measurement_dates": [
  "2027-01 (clear January day)",
  "2027-07 (clear July day)"
 ],
 "location": "Sarasota, Florida (single site, samples side by side, full sun)",
 "instrument": "Calibrated infrared thermometer, emissivity set for masonry (~0.94), distance-to-spot per instrument spec; readings taken 3x per surface, median reported",
 "times_local": [
  "10:00",
  "14:00",
  "17:00"
 ],
 "conditions_recorded": [
  "air temperature (shaded)",
  "sky condition",
  "wind",
  "surface dry/wet",
  "time since last rain",
  "sample color (light/medium/dark)"
 ],
 "surfaces": [
  {
   "id": "concrete-gray-broom",
   "name": "Gray broom-finished concrete",
   "color": "medium"
  },
  {
   "id": "concrete-light-broom",
   "name": "Light (white cement) broom-finished concrete",
   "color": "light"
  },
  {
   "id": "cool-deck-overlay",
   "name": "Light textured cementitious overlay (cool deck type)",
   "color": "light"
  },
  {
   "id": "paver-gray",
   "name": "Gray concrete paver",
   "color": "medium"
  },
  {
   "id": "paver-light",
   "name": "Light-blend concrete paver",
   "color": "light"
  },
  {
   "id": "travertine-tumbled",
   "name": "Tumbled travertine, light",
   "color": "light"
  },
  {
   "id": "shellstone",
   "name": "Shellstone",
   "color": "light"
  },
  {
   "id": "marble-honed",
   "name": "Honed marble, white/cream",
   "color": "light"
  },
  {
   "id": "porcelain-2cm",
   "name": "2 cm porcelain paver, light",
   "color": "light"
  }
 ],
 "readings": [],
 "note": "No temperature values are published until measured. Third-party claims (e.g., 20-35 F differences between light stone and dark concrete) are not reproduced here as data."
}