{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:09:03.706355", "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": "2025-Nov-22_to_2025-Nov-24_126.0_36.0"}, "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": 2025110002229}, "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": "November 22 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 24 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 59690.68397595173}, "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, Democratic People's Republic of", "Korea, Republic of"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "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": ["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": 36.0}, "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": 126.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "126.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 124.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 126.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 35.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 38.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[124.0, 36.75], [124.25, 36.65], [124.32, 36.68], [124.47, 37.03], [124.82, 37.18], [124.96, 37.5], [124.82, 37.82], [124.47, 37.97], [124.25, 38.5], [124.47, 39.03], [125.0, 39.25], [125.53, 39.03], [125.68, 38.68], [125.75, 38.65], [126.0, 38.75], [126.53, 38.53], [126.68, 38.18], [127.03, 38.03], [127.25, 37.5], [127.15, 37.25], [127.25, 37.0], [127.15, 36.75], [127.25, 36.5], [127.03, 35.97], [126.68, 35.82], [126.65, 35.75], [126.75, 35.5], [126.53, 34.97], [126.18, 34.82], [126.03, 34.47], [125.5, 34.25], [125.25, 34.35], [125.0, 34.25], [124.47, 34.47], [124.32, 34.82], [124.25, 34.85], [124.0, 34.75], [123.47, 34.97], [123.25, 35.5], [123.35, 35.75], [123.25, 36.0], [123.47, 36.53], [124.0, 36.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.25, 36.0], [123.47, 36.53], [124.0, 36.75], [124.25, 36.65], [124.32, 36.68], [124.47, 37.03], [124.82, 37.18], [124.96, 37.5], [124.82, 37.82], [124.47, 37.97], [124.25, 38.5], [124.47, 39.03], [125.0, 39.25], [125.53, 39.03], [125.68, 38.68], [125.75, 38.65], [126.0, 38.75], [126.53, 38.53], [126.68, 38.18], [127.03, 38.03], [127.25, 37.5], [127.15, 37.25], [127.25, 37.0], [127.15, 36.75], [127.25, 36.5], [127.03, 35.97], [126.68, 35.82], [126.65, 35.75], [126.75, 35.5], [126.53, 34.97], [126.18, 34.82], [126.03, 34.47], [125.5, 34.25], [125.25, 34.35], [125.0, 34.25], [124.47, 34.47], [124.32, 34.82], [124.25, 34.85], [124.0, 34.75], [123.47, 34.97], [123.25, 35.5], [123.35, 35.75], [123.25, 36.0]]]]}, "2025-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.25, 36.0], [123.47, 36.53], [124.0, 36.75], [124.25, 36.65], [124.32, 36.68], [124.47, 37.03], [124.82, 37.18], [124.96, 37.5], [124.82, 37.82], [124.47, 37.97], [124.25, 38.5], [124.47, 39.03], [125.0, 39.25], [125.53, 39.03], [125.68, 38.68], [125.75, 38.65], [126.0, 38.75], [126.53, 38.53], [126.68, 38.18], [127.03, 38.03], [127.25, 37.5], [127.15, 37.25], [127.25, 37.0], [127.15, 36.75], [127.25, 36.5], [127.03, 35.97], [126.68, 35.82], [126.65, 35.75], [126.75, 35.5], [126.53, 34.97], [126.18, 34.82], [126.03, 34.47], [125.5, 34.25], [125.25, 34.35], [125.0, 34.25], [124.47, 34.47], [124.32, 34.82], [124.25, 34.85], [124.0, 34.75], [123.47, 34.97], [123.25, 35.5], [123.35, 35.75], [123.25, 36.0]]]]}, "2025-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.25, 36.0], [123.47, 36.53], [124.0, 36.75], [124.25, 36.65], [124.32, 36.68], [124.47, 37.03], [124.82, 37.18], [124.96, 37.5], [124.82, 37.82], [124.47, 37.97], [124.25, 38.5], [124.47, 39.03], [125.0, 39.25], [125.53, 39.03], [125.68, 38.68], [125.75, 38.65], [126.0, 38.75], [126.53, 38.53], [126.68, 38.18], [127.03, 38.03], [127.25, 37.5], [127.15, 37.25], [127.25, 37.0], [127.15, 36.75], [127.25, 36.5], [127.03, 35.97], [126.68, 35.82], [126.65, 35.75], [126.75, 35.5], [126.53, 34.97], [126.18, 34.82], [126.03, 34.47], [125.5, 34.25], [125.25, 34.35], [125.0, 34.25], [124.47, 34.47], [124.32, 34.82], [124.25, 34.85], [124.0, 34.75], [123.47, 34.97], [123.25, 35.5], [123.35, 35.75], [123.25, 36.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.942408980532491}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.272331282787608}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.916091749403165, 13.994851260715052, 12.755263264973962]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.255637105305993, 15.096512095133505, 14.232914225260458]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.7910376745154983, 5.030713152013365, 3.9952430218339594]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.143229614292636, 6.942408980532491, 5.329138890593526]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3882252992224016, 1.8737774715247493, 1.473728258117711]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5414451203953397, 1.9931314215253364, 1.7062901982814127]}}