{"phase":"Phase 1 実装検証中","mode":"静的地形リスク","area":{"municipality":{"name":"印西市","prefecture":"千葉県"},"bounding_box":{"north":35.93003327846164,"south":35.64,"east":140.4004115529679,"west":139.98},"boundary_status":"rectangular_extent_not_administrative_boundary","processing_crs":"EPSG:3857","cell_size_mercator_m":100.0,"cell_size_ground_m":[80.97,81.27],"crs_note":"格子は Web メルカトル（EPSG:3857）で、1セルはメルカトル上の100m。面積・距離・傾斜は行ごとの縮尺係数 cos(φ) を掛けて地上値に直して計算している。前の版（topo-0.1.0）はこの補正が無く、集水面積が約1.52倍過大・傾斜が約19%過小だった。","dem_zoom":13,"dem_priority":["dem1a_png","dem5a_png","dem5b_png","dem5c_png","dem_png"],"map_center":[35.78501663923082,140.19020577648394],"hazard_reference":{"source":"https://www.city.inzai.lg.jp/bousaiportal/0000008837.html","availability":"reference_link_only","processing_method":"公式PDFへの参照のみ。区域GISは未取得。"}},"metadata":{"model_version":"topo-0.2.0","parameters":{"model_version":"topo-0.2.0","calibration_status":"仮設定・未校正","weights":{"relative":0.25,"depression":0.35,"accumulation":0.25,"flatness":0.15},"scales":{"relative_m":5.0,"depression_m":2.0,"accumulation_m2":1000000.0,"slope_degrees":10.0},"relative_neighborhood":{"shape":"circle","radius_cells":3},"slope_method":"Horn 3x3（地上セル寸法で除算）","depression_method":"Priority-Flood（流下計算はε版で平坦部を解消）","flow_method":"D8","score_thresholds":[25,50,75],"road_impassable_threshold":"UNVERIFIED","drainage":{"mode":"unknown"}},"assumptions":["100m格子（メルカトル）。地上では約81m。小規模な窪地・道路幅の判定には不十分","地形のみ・仮設定・未校正","市境ではなく周辺を含む矩形範囲","解析境界外からの流入を考慮しない","雨水管・河川氾濫・実雨量は未考慮","リアルタイムXRAIN接続未実装","相対標高の近傍半径3セル（約240m）は本実装で決めた値で、前の版の定義は復元できていない"]},"cell_count":184912,"generated_at":"2026-09-22T22:08:10.628330+00:00","generator":"pipeline/build_static.py"}