{
  "metadata": {
    "title": "Mabi 2018 Flood Hazard and Response Evidence Dashboard",
    "place": "Mabi district, Kurashiki City, Okayama Prefecture, Japan",
    "event": "July 2018 Western Japan Floods",
    "aoi_bounds": [
      133.64,
      34.6,
      133.735,
      34.67
    ],
    "center": [
      133.695,
      34.635
    ],
    "scope": "Single-city research demonstrator focused on disaster-hazard dataset development and satellite-supported identification of response needs and documented activities.",
    "research_objectives": [
      "Develop reproducible disaster-hazard datasets rather than foregrounding damage or loss totals.",
      "Use satellite and geospatial evidence to screen response needs and locate documented response activities."
    ],
    "important_caution": "Flood overlap indicates exposure to a mapped hazard extent. It does not by itself prove structural damage, road blockage, occupancy or rescue activity."
  },
  "hazard": {
    "inundation_by_date": {
      "type": "FeatureCollection",
      "features": [
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          "type": "Feature",
          "properties": {
            "_color": "#ffa500",
            "_opacity": 1,
            "_weight": 1.5,
            "_fillColor": "#ffa500",
            "_fillOpacity": 0.2,
            "name": "推定浸水範囲",
            "注意": "この情報は、7月7日の映像等の情報から浸水し<br/>た範囲の端の地点を確認し、その地点の高さから<br/>標高データを用いて浸水面を推定したものです。<br/>実際に浸水のあった範囲でも把握できていない部<br/>分、浸水していない範囲でも浸水範囲として表示<br/>されている部分があります。",
            "date": "20180707",
            "date_label": "7 Jul",
            "evidence": "GSI estimated inundation extent"
          },
          "geometry": {
            "type": "Polygon",
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          "temporal_note": "Current OSM context; verify 2018 existence, access and operational status."
        }
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        },
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          "decision_use": "Screen first for access, occupancy and assistance needs using event imagery and field reports.",
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          "rank": 4,
          "name": "Built-exposure cluster 4",
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          "decision_use": "Screen first for access, occupancy and assistance needs using event imagery and field reports.",
          "evidence_class": "Derived screening, not a confirmed rescue location"
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        "type": "Feature",
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          "decision_use": "Screen first for access, occupancy and assistance needs using event imagery and field reports.",
          "evidence_class": "Derived screening, not a confirmed rescue location"
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        "type": "Feature",
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          "decision_use": "Screen first for access, occupancy and assistance needs using event imagery and field reports.",
          "evidence_class": "Derived screening, not a confirmed rescue location"
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        "type": "Feature",
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          "name": "Built-exposure cluster 7",
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          "decision_use": "Screen first for access, occupancy and assistance needs using event imagery and field reports.",
          "evidence_class": "Derived screening, not a confirmed rescue location"
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        "type": "Feature",
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        "properties": {
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          "interpretation": "High concentration of mapped building footprints inside the GSI flood extent.",
          "decision_use": "Screen first for access, occupancy and assistance needs using event imagery and field reports.",
          "evidence_class": "Derived screening, not a confirmed rescue location"
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      },
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        "type": "Feature",
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          "building_count": 231,
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          "interpretation": "High concentration of mapped building footprints inside the GSI flood extent.",
          "decision_use": "Screen first for access, occupancy and assistance needs using event imagery and field reports.",
          "evidence_class": "Derived screening, not a confirmed rescue location"
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      },
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        "type": "Feature",
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          "rank": 10,
          "name": "Built-exposure cluster 10",
          "building_count": 217,
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          "maximum_predicted_height_m": 6.4,
          "interpretation": "High concentration of mapped building footprints inside the GSI flood extent.",
          "decision_use": "Screen first for access, occupancy and assistance needs using event imagery and field reports.",
          "evidence_class": "Derived screening, not a confirmed rescue location"
        }
      },
      {
        "type": "Feature",
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        "properties": {
          "rank": 11,
          "name": "Built-exposure cluster 11",
          "building_count": 200,
          "footprint_m2": 21045,
          "maximum_predicted_height_m": 6.6,
          "interpretation": "High concentration of mapped building footprints inside the GSI flood extent.",
          "decision_use": "Screen first for access, occupancy and assistance needs using event imagery and field reports.",
          "evidence_class": "Derived screening, not a confirmed rescue location"
        }
      },
      {
        "type": "Feature",
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        "properties": {
          "rank": 12,
          "name": "Built-exposure cluster 12",
          "building_count": 188,
          "footprint_m2": 15315,
          "maximum_predicted_height_m": 7.2,
          "interpretation": "High concentration of mapped building footprints inside the GSI flood extent.",
          "decision_use": "Screen first for access, occupancy and assistance needs using event imagery and field reports.",
          "evidence_class": "Derived screening, not a confirmed rescue location"
        }
      },
      {
        "type": "Feature",
        "geometry": {
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        "properties": {
          "rank": 13,
          "name": "Built-exposure cluster 13",
          "building_count": 188,
          "footprint_m2": 21460,
          "maximum_predicted_height_m": 9.0,
          "interpretation": "High concentration of mapped building footprints inside the GSI flood extent.",
          "decision_use": "Screen first for access, occupancy and assistance needs using event imagery and field reports.",
          "evidence_class": "Derived screening, not a confirmed rescue location"
        }
      },
      {
        "type": "Feature",
        "geometry": {
          "type": "Point",
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        "properties": {
          "rank": 14,
          "name": "Built-exposure cluster 14",
          "building_count": 183,
          "footprint_m2": 16420,
          "maximum_predicted_height_m": 6.2,
          "interpretation": "High concentration of mapped building footprints inside the GSI flood extent.",
          "decision_use": "Screen first for access, occupancy and assistance needs using event imagery and field reports.",
          "evidence_class": "Derived screening, not a confirmed rescue location"
        }
      }
    ]
  },
  "response_records": {
    "type": "FeatureCollection",
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      {
        "type": "Feature",
        "geometry": {
          "type": "Point",
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        "properties": {
          "name": "Kawabe Elementary School",
          "name_ja": "市立川辺小学校",
          "response_type": "Isolation / evacuation",
          "time": "8 Jul, 01:20 record",
          "event_record": "Approximately 100 people were reported isolated; by 05:00 no people were visible and evacuation was inferred.",
          "source": "Okayama Prefecture disaster-response validation report",
          "spatial_note": "Event record geolocated to the present OSM facility point.",
          "evidence_class": "Confirmed agency chronology"
        }
      },
      {
        "type": "Feature",
        "geometry": {
          "type": "Point",
          "coordinates": [
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        },
        "properties": {
          "name": "Makibi Hospital",
          "name_ja": "造山会まきび病院",
          "response_type": "Water-supply support",
          "time": "8 Jul, about 12:00 record",
          "event_record": "A shortage in the hospital water tank was reported; a Self-Defense Force water truck was requested.",
          "source": "Okayama Prefecture disaster-response validation report",
          "spatial_note": "Event record geolocated to the present OSM facility point.",
          "evidence_class": "Confirmed agency chronology"
        }
      },
      {
        "type": "Feature",
        "geometry": {
          "type": "Point",
          "coordinates": [
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        },
        "properties": {
          "name": "Life Town Mabi",
          "name_ja": "ライフタウンまび在宅介護支援センター",
          "response_type": "Isolation / relief supply",
          "time": "7 Jul response chronology",
          "event_record": "Approximately 70 people were reported isolated on the second floor without food; delivery of relief supplies was considered.",
          "source": "Okayama Prefecture disaster-response validation report",
          "spatial_note": "Event record geolocated to the present OSM facility point.",
          "evidence_class": "Confirmed agency chronology"
        }
      }
    ]
  },
  "dataset_catalog": [
    {
      "product": "Estimated inundation extent",
      "type": "Hazard",
      "format": "Vector polygons",
      "time": "7-11 Jul 2018",
      "measure": "Mapped area by observation date",
      "source": "GSI",
      "evidence": "Official interpreted hazard evidence"
    },
    {
      "product": "Inundation-depth interpretation",
      "type": "Hazard",
      "format": "Georeferenced raster mosaic",
      "time": "Jul 2018 event",
      "measure": "Depth-class visualization",
      "source": "GSI",
      "evidence": "Official interpreted hazard evidence"
    },
    {
      "product": "Kurashiki rainfall series",
      "type": "Hazard driver",
      "format": "Daily station observations",
      "time": "3-8 Jul 2018",
      "measure": "mm/day",
      "source": "JMA",
      "evidence": "Official observation"
    },
    {
      "product": "Flood-exposed settlement screen",
      "type": "Response-need screen",
      "format": "3D building footprints and clusters",
      "time": "2019 reference layer screened against 7 Jul hazard",
      "measure": "Building count and footprint",
      "source": "GlobalBuildingAtlas + GSI",
      "evidence": "Derived; requires verification"
    },
    {
      "product": "Access and facility screen",
      "type": "Response-need screen",
      "format": "Road lines and facility points",
      "time": "Current context screened against 7 Jul hazard",
      "measure": "Intersecting road length and facility count",
      "source": "OpenStreetMap + GSI",
      "evidence": "Derived; requires event-time verification"
    },
    {
      "product": "Documented response locations",
      "type": "Response activity",
      "format": "Geolocated point records",
      "time": "7-8 Jul 2018 chronology",
      "measure": "Activity type and record time",
      "source": "Okayama Prefecture",
      "evidence": "Confirmed agency chronology"
    }
  ],
  "metrics": {
    "gba_buildings": 24619,
    "gba_flood_overlap_buildings": 8194,
    "gba_mean_predicted_height_m": 2.8,
    "gba_footprint_km2": 2.92,
    "gba_flood_overlap_footprint_km2": 0.9,
    "mapped_road_km": 415.0,
    "road_km_intersecting_flood_screen": 141.3,
    "mapped_facilities": 44,
    "facilities_in_flood_screen": 24,
    "candidate_support_sites": 8,
    "emergency_drainage_water_million_m3_approx": 24,
    "pump_vehicles": 23,
    "lighting_vehicles": 11
  },
  "sources": [
    {
      "agency": "Geospatial Information Authority of Japan (GSI)",
      "use": "Estimated inundation polygons, inundation-depth image, elevation image, and event interpretation documentation",
      "url": "https://www.gsi.go.jp/BOUSAI/H30.taihuu7gou.html"
    },
    {
      "agency": "Japan Meteorological Agency (JMA)",
      "use": "Kurashiki daily rainfall, 3-8 July 2018",
      "url": "https://www.data.jma.go.jp/stats/data/bosai/report/2018/20180713/pdf/2018_3_okayama_1.pdf"
    },
    {
      "agency": "Ministry of Land, Infrastructure, Transport and Tourism (MLIT)",
      "use": "Peak inundation and emergency drainage operations",
      "url": "https://www.mlit.go.jp/common/001243196.pdf"
    },
    {
      "agency": "Okayama Prefecture",
      "use": "Confirmed response chronology and validation records",
      "url": "https://www.pref.okayama.jp/uploaded/life/910810_8705279_misc.pdf"
    },
    {
      "agency": "OpenStreetMap contributors",
      "use": "Current road and facility context",
      "url": "https://www.openstreetmap.org/copyright"
    },
    {
      "agency": "GlobalBuildingAtlas",
      "use": "2019 LoD1 building footprints and predicted heights (CC BY-NC 4.0)",
      "url": "https://doi.org/10.14459/2025mp1782307"
    }
  ]
}