{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:53:22.886488", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2023-May-02_to_2023-May-05_126.5_31.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2023050001312}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "May 02 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 05 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 146483.3385618416}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Korea, Republic of"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": ["East China Sea", "Sea of Japan", "Yellow Sea"]}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 31.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 126.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "126.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 124.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 128.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 30.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 34.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[124.35, 34.25], [124.25, 34.5], [124.47, 35.03], [125.0, 35.25], [125.25, 35.15], [125.5, 35.25], [125.75, 35.15], 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regions affected", "value": ["E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.47, 30.47], [124.25, 31.0], [124.47, 31.53], [124.82, 31.68], [124.97, 32.03], [125.32, 32.18], [125.35, 32.25], [125.25, 32.5], [125.35, 32.75], [125.32, 32.82], [124.97, 32.97], [124.82, 33.32], [124.47, 33.47], [124.25, 34.0], [124.47, 34.53], [125.0, 34.75], [125.25, 34.65], [125.5, 34.75], [126.03, 34.53], [126.18, 34.18], [126.53, 34.03], [126.75, 33.5], [126.65, 33.25], [126.68, 33.18], [127.03, 33.03], [127.25, 32.5], [127.13, 32.2], [127.53, 32.03], [127.75, 31.5], [127.65, 31.25], [127.75, 31.0], [127.65, 30.75], [127.75, 30.5], [127.53, 29.97], [127.0, 29.75], [126.75, 29.85], [126.5, 29.75], [126.25, 29.85], [126.0, 29.75], [125.75, 29.85], [125.5, 29.75], [124.97, 29.97], [124.82, 30.32], [124.47, 30.47]]]]}, "2023-05-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.75, 31.5], [123.85, 31.75], [123.75, 32.0], [123.85, 32.25], [123.75, 32.5], [123.97, 33.03], [124.32, 33.18], [124.35, 33.25], [124.25, 33.5], [124.35, 33.75], [124.25, 34.0], [124.35, 34.25], [124.25, 34.5], [124.47, 35.03], [125.0, 35.25], [125.25, 35.15], [125.5, 35.25], [125.75, 35.15], [126.0, 35.25], [126.53, 35.03], [126.68, 34.68], [126.75, 34.65], [126.82, 34.68], [126.97, 35.03], [127.5, 35.25], [127.75, 35.15], [128.0, 35.25], [128.53, 35.03], [128.75, 34.5], [128.53, 33.97], [128.18, 33.82], [128.03, 33.47], [127.63, 33.3], [127.75, 33.0], [127.65, 32.75], [127.68, 32.68], [128.03, 32.53], [128.25, 32.0], [128.15, 31.75], [128.25, 31.5], [128.15, 31.25], [128.25, 31.0], [128.15, 30.75], [128.25, 30.5], [128.03, 29.97], [127.68, 29.82], [127.53, 29.47], [127.0, 29.25], [126.75, 29.35], [126.5, 29.25], [126.25, 29.35], [126.0, 29.25], [125.75, 29.35], [125.5, 29.25], [124.97, 29.47], [124.82, 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22.233387719768302]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.9703521128693258, 2.0471800533903584, 2.6137958450792516, 2.386051918072757]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.4189120827940087, 2.8078472219942228, 3.2341471644869557, 3.3653312550401893]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4742136604079825, 1.5855114279897304, 2.0496866885907012, 1.9262115532377742]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6717467691588692, 1.953731855527949, 2.50368542247396, 2.7011438435720194]}}