{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:09:05.105374", "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-25_to_2025-Nov-27_282.5_24.0"}, "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": 2025110002375}, "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 25 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 27 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": 94591.60566374197}, "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": ["Bahamas"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America"]}, "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": ["Atlantic Ocean"]}, "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": 24.0}, "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": 282.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "282.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 281.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 284.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 28.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-79.25, 26.0], [-79.03, 26.53], [-78.62, 26.7], [-78.75, 27.0], [-78.65, 27.25], [-78.75, 27.5], [-78.65, 27.75], [-78.75, 28.0], [-78.53, 28.53], [-78.0, 28.75], [-77.47, 28.53], [-77.32, 28.18], [-77.25, 28.15], [-77.0, 28.25], [-76.75, 28.15], [-76.5, 28.25], [-76.25, 28.15], [-76.0, 28.25], [-75.47, 28.03], [-75.25, 27.5], [-75.47, 26.97], [-75.82, 26.82], [-75.85, 26.75], [-75.75, 26.5], [-75.87, 26.2], [-75.75, 26.15], [-75.5, 26.25], [-74.97, 26.03], [-74.75, 25.5], [-74.97, 24.97], [-75.37, 24.8], [-75.25, 24.5], [-75.47, 23.97], [-76.0, 23.75], [-76.25, 23.85], [-76.32, 23.82], [-76.35, 23.75], [-76.25, 23.5], [-76.47, 22.97], [-77.0, 22.75], [-77.25, 22.85], [-77.5, 22.75], [-78.03, 22.97], [-78.25, 23.5], [-78.15, 23.75], [-78.25, 24.0], [-78.15, 24.25], [-78.18, 24.32], [-78.25, 24.35], [-78.5, 24.25], [-79.03, 24.47], [-79.25, 25.0], [-79.15, 25.25], [-79.25, 25.5], [-79.15, 25.75], [-79.25, 26.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.North-America", "Caribbean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-11-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-79.25, 25.5], [-79.14999999999998, 25.75], [-79.25, 26.0], [-79.02999999999997, 26.53], [-78.62, 26.7], [-78.75, 27.0], [-78.64999999999998, 27.25], [-78.75, 27.5], [-78.64999999999998, 27.75], [-78.75, 28.0], [-78.52999999999997, 28.53], [-78.0, 28.75], [-77.47000000000003, 28.53], [-77.32, 28.18], [-77.25, 28.15], [-77.0, 28.25], [-76.75, 28.15], [-76.5, 28.25], [-76.25, 28.15], [-76.0, 28.25], [-75.47000000000003, 28.03], [-75.25, 27.5], [-75.47000000000003, 26.97], [-75.82, 26.82], [-75.85000000000002, 26.75], [-75.75, 26.5], [-75.87, 26.2], [-75.75, 26.15], [-75.5, 26.25], [-74.97000000000003, 26.03], [-74.75, 25.5], [-74.97000000000003, 24.97], [-75.37, 24.8], [-75.25, 24.5], [-75.47000000000003, 23.97], [-76.0, 23.75], [-76.25, 23.85], [-76.32, 23.82], [-76.35000000000002, 23.75], [-76.25, 23.5], [-76.47000000000003, 22.97], [-77.0, 22.75], [-77.25, 22.85], [-77.5, 22.75], [-78.02999999999997, 22.97], [-78.25, 23.5], [-78.14999999999998, 23.75], [-78.25, 24.0], [-78.14999999999998, 24.25], [-78.18, 24.32], [-78.25, 24.35], [-78.5, 24.25], [-79.02999999999997, 24.47], [-79.25, 25.0], [-79.14999999999998, 25.25], [-79.25, 25.5]]]]}, "2025-11-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-79.25, 25.5], [-79.14999999999998, 25.75], [-79.25, 26.0], [-79.02999999999997, 26.53], [-78.62, 26.7], [-78.75, 27.0], [-78.64999999999998, 27.25], [-78.75, 27.5], [-78.64999999999998, 27.75], [-78.75, 28.0], [-78.52999999999997, 28.53], [-78.0, 28.75], [-77.47000000000003, 28.53], [-77.32, 28.18], [-77.25, 28.15], [-77.0, 28.25], [-76.75, 28.15], [-76.5, 28.25], [-76.25, 28.15], [-76.0, 28.25], [-75.47000000000003, 28.03], [-75.25, 27.5], [-75.47000000000003, 26.97], [-75.82, 26.82], [-75.85000000000002, 26.75], [-75.75, 26.5], [-75.87, 26.2], [-75.75, 26.15], [-75.5, 26.25], [-74.97000000000003, 26.03], [-74.75, 25.5], [-74.97000000000003, 24.97], [-75.37, 24.8], [-75.25, 24.5], [-75.47000000000003, 23.97], [-76.0, 23.75], [-76.25, 23.85], [-76.32, 23.82], [-76.35000000000002, 23.75], [-76.25, 23.5], [-76.47000000000003, 22.97], [-77.0, 22.75], [-77.25, 22.85], [-77.5, 22.75], [-78.02999999999997, 22.97], [-78.25, 23.5], [-78.14999999999998, 23.75], [-78.25, 24.0], [-78.14999999999998, 24.25], [-78.18, 24.32], [-78.25, 24.35], [-78.5, 24.25], [-79.02999999999997, 24.47], [-79.25, 25.0], [-79.14999999999998, 25.25], [-79.25, 25.5]]]]}, "2025-11-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-79.25, 25.5], [-79.14999999999998, 25.75], [-79.25, 26.0], [-79.02999999999997, 26.53], [-78.62, 26.7], [-78.75, 27.0], [-78.64999999999998, 27.25], [-78.75, 27.5], [-78.64999999999998, 27.75], [-78.75, 28.0], [-78.52999999999997, 28.53], [-78.0, 28.75], [-77.47000000000003, 28.53], [-77.32, 28.18], [-77.25, 28.15], [-77.0, 28.25], [-76.75, 28.15], [-76.5, 28.25], [-76.25, 28.15], [-76.0, 28.25], [-75.47000000000003, 28.03], [-75.25, 27.5], [-75.47000000000003, 26.97], [-75.82, 26.82], [-75.85000000000002, 26.75], [-75.75, 26.5], [-75.87, 26.2], [-75.75, 26.15], [-75.5, 26.25], [-74.97000000000003, 26.03], [-74.75, 25.5], [-74.97000000000003, 24.97], [-75.37, 24.8], [-75.25, 24.5], [-75.47000000000003, 23.97], [-76.0, 23.75], [-76.25, 23.85], [-76.32, 23.82], [-76.35000000000002, 23.75], [-76.25, 23.5], [-76.47000000000003, 22.97], [-77.0, 22.75], [-77.25, 22.85], [-77.5, 22.75], [-78.02999999999997, 22.97], [-78.25, 23.5], [-78.14999999999998, 23.75], [-78.25, 24.0], [-78.14999999999998, 24.25], [-78.18, 24.32], [-78.25, 24.35], [-78.5, 24.25], [-79.02999999999997, 24.47], [-79.25, 25.0], [-79.14999999999998, 25.25], [-79.25, 25.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.3371941103760605}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.5806925837426198}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.401067576688888, 25.405749407001622, 25.38306340236295]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.230925496419275, 26.060170745849632, 26.15198669433596]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.557591772398561, 1.5985606394295093, 1.585925339399789]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.8845794305078698, 2.3371941103760605, 1.9779999245227486]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.246544239551161, 1.2952992959927603, 1.3608480642311152]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4941740219899216, 1.52648973856338, 1.6337208056208534]}}