{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:57:52.096167", "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-28_239.0_34.5"}, "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": 2025110002154}, "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 28 2025"}, "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": 90956.63589329395}, "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": ["United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Central-America", "N.Pacific-Ocean", "W.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North 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": ["North Pacific 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": 34.5}, "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": 239.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "239.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 237.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 241.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 29.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 36.75}, "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": [[[[-121.65, 34.75], [-121.75, 35.0], [-121.53, 35.53], [-121.0, 35.75], [-120.47, 35.53], [-120.25, 35.0], [-120.35, 34.75], [-120.32, 34.68], [-119.97, 34.53], [-119.75, 34.0], [-119.85, 33.75], [-119.75, 33.5], [-119.97, 32.97], [-120.5, 32.75], [-121.03, 32.97], [-121.18, 33.32], [-121.53, 33.47], [-121.75, 34.0], [-121.65, 34.25], [-121.75, 34.5], [-121.65, 34.75]]]]}, "2025-11-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-122.53, 37.03], [-122.0, 37.25], [-121.47, 37.03], [-121.25, 36.5], [-121.35, 36.25], [-121.32, 36.18], [-120.97, 36.03], [-120.82, 35.68], [-120.47, 35.53], [-120.32, 35.18], [-120.25, 35.15], [-120.0, 35.25], [-119.47, 35.03], [-119.25, 34.5], [-119.35, 34.25], [-119.25, 34.0], [-119.35, 33.75], [-119.32, 33.68], [-118.97, 33.53], [-118.82, 33.18], [-118.47, 33.03], [-118.25, 32.5], [-118.35, 32.25], [-118.25, 32.0], [-118.47, 31.47], [-118.82, 31.32], [-118.85, 31.25], [-118.75, 31.0], [-118.97, 30.47], [-119.32, 30.32], [-119.35, 30.25], [-119.25, 30.0], [-119.47, 29.47], [-120.0, 29.25], [-120.53, 29.47], [-120.68, 29.82], [-120.75, 29.85], [-121.0, 29.75], [-121.53, 29.97], [-121.68, 30.32], [-122.03, 30.47], [-122.25, 31.0], [-122.03, 31.53], [-121.68, 31.68], [-121.53, 32.03], [-121.12, 32.2], [-121.25, 32.5], [-121.15, 32.75], [-121.25, 33.0], [-121.15, 33.25], [-121.18, 33.32], [-121.53, 33.47], [-121.75, 34.0], [-121.65, 34.25], [-121.68, 34.32], [-122.03, 34.47], [-122.25, 35.0], [-122.15, 35.25], [-122.18, 35.32], [-122.53, 35.47], [-122.75, 36.0], [-122.65, 36.25], [-122.75, 36.5], [-122.53, 37.03]]]]}, "2025-11-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-122.53, 37.03], [-122.0, 37.25], [-121.47, 37.03], [-121.25, 36.5], [-121.35, 36.25], [-121.32, 36.18], [-120.97, 36.03], [-120.82, 35.68], [-120.47, 35.53], [-120.32, 35.18], [-120.25, 35.15], [-120.0, 35.25], [-119.47, 35.03], [-119.25, 34.5], [-119.35, 34.25], [-119.25, 34.0], [-119.35, 33.75], [-119.32, 33.68], [-118.97, 33.53], [-118.82, 33.18], [-118.47, 33.03], [-118.25, 32.5], [-118.35, 32.25], [-118.25, 32.0], [-118.47, 31.47], [-118.82, 31.32], [-118.85, 31.25], [-118.75, 31.0], [-118.97, 30.47], [-119.32, 30.32], [-119.35, 30.25], [-119.25, 30.0], [-119.47, 29.47], [-120.0, 29.25], [-120.53, 29.47], [-120.68, 29.82], [-120.75, 29.85], [-121.0, 29.75], [-121.53, 29.97], [-121.68, 30.32], [-122.03, 30.47], [-122.25, 31.0], [-122.03, 31.53], [-121.68, 31.68], [-121.53, 32.03], [-121.12, 32.2], [-121.25, 32.5], [-121.15, 32.75], [-121.25, 33.0], [-121.15, 33.25], [-121.18, 33.32], [-121.53, 33.47], [-121.75, 34.0], [-121.65, 34.25], [-121.68, 34.32], [-122.03, 34.47], [-122.25, 35.0], [-122.15, 35.25], [-122.18, 35.32], [-122.53, 35.47], [-122.75, 36.0], [-122.65, 36.25], [-122.75, 36.5], [-122.53, 37.03]]]]}, "2025-11-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-122.53, 37.03], [-122.0, 37.25], [-121.47, 37.03], [-121.25, 36.5], [-121.35, 36.25], [-121.32, 36.18], [-120.97, 36.03], [-120.82, 35.68], [-120.47, 35.53], [-120.32, 35.18], [-120.25, 35.15], [-120.0, 35.25], [-119.47, 35.03], [-119.25, 34.5], [-119.35, 34.25], [-119.25, 34.0], [-119.35, 33.75], [-119.32, 33.68], [-118.97, 33.53], [-118.82, 33.18], [-118.47, 33.03], [-118.25, 32.5], [-118.35, 32.25], [-118.25, 32.0], [-118.47, 31.47], [-118.82, 31.32], [-118.85, 31.25], [-118.75, 31.0], [-118.97, 30.47], [-119.32, 30.32], [-119.35, 30.25], [-119.25, 30.0], [-119.47, 29.47], [-120.0, 29.25], [-120.53, 29.47], [-120.68, 29.82], [-120.75, 29.85], [-121.0, 29.75], [-121.53, 29.97], [-121.68, 30.32], [-122.03, 30.47], [-122.25, 31.0], [-122.03, 31.53], [-121.68, 31.68], [-121.53, 32.03], [-121.12, 32.2], [-121.25, 32.5], [-121.15, 32.75], [-121.25, 33.0], [-121.15, 33.25], [-121.18, 33.32], [-121.53, 33.47], [-121.75, 34.0], [-121.65, 34.25], [-121.68, 34.32], [-122.03, 34.47], [-122.25, 35.0], [-122.15, 35.25], [-122.18, 35.32], [-122.53, 35.47], [-122.75, 36.0], [-122.65, 36.25], [-122.75, 36.5], [-122.53, 37.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.512205121852105}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.166531543352444}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.551433308919286, 17.318890053885355, 17.698705909365742, 17.159857250395305]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.81189880371096, 18.122426605224632, 18.55677185058596, 18.056906636555993]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.9264463249405026, 2.0411616426260464, 2.481066533356607, 2.0116643424192406]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.333561668235518, 3.1771002662175647, 4.512205121852105, 3.0646076644420646]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5822373237897522, 1.6873408882830863, 2.027423707364987, 1.6311047512689592]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9002803487118978, 1.949587629594211, 2.948741512626599, 2.0092479569453747]}}