{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:24:49.052000", "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": "2022-Nov-07_to_2022-Nov-10_204.0_69.0"}, "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": 2022110001867}, "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 07 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 10 2022"}, "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": 57319.977339291436}, "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"]}, "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": []}, "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": 69.0}, "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": 204.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "204.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 203.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 211.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 68.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 70.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-157.03, 69.53], [-156.5, 69.75], [-156.25, 69.65], [-156.18, 69.68], [-156.03, 70.03], [-155.5, 70.25], [-155.25, 70.15], [-155.18, 70.18], [-155.15, 70.25], [-155.25, 70.5], [-155.03, 71.03], [-154.5, 71.25], [-154.25, 71.15], [-154.0, 71.25], [-153.47, 71.03], [-153.32, 70.68], [-153.25, 70.65], [-153.0, 70.75], [-152.75, 70.65], [-152.5, 70.75], [-152.25, 70.65], [-152.18, 70.68], [-152.03, 71.03], [-151.5, 71.25], [-151.25, 71.15], [-151.0, 71.25], [-150.75, 71.15], [-150.5, 71.25], [-150.25, 71.15], [-150.0, 71.25], [-149.75, 71.15], [-149.5, 71.25], [-148.97, 71.03], [-148.82, 70.68], [-148.47, 70.53], [-148.25, 70.0], [-148.35, 69.75], [-148.25, 69.5], [-148.35, 69.25], [-148.25, 69.0], [-148.47, 68.47], [-149.0, 68.25], [-149.25, 68.35], [-149.5, 68.25], [-149.75, 68.35], [-150.0, 68.25], [-150.25, 68.35], [-150.5, 68.25], [-150.75, 68.35], [-151.0, 68.25], [-151.25, 68.35], [-151.32, 68.32], [-151.47, 67.97], [-152.0, 67.75], [-152.25, 67.85], [-152.5, 67.75], [-152.75, 67.85], [-153.0, 67.75], [-153.25, 67.85], [-153.5, 67.75], [-154.03, 67.97], [-154.18, 68.32], [-154.25, 68.35], [-154.5, 68.25], [-154.75, 68.35], [-155.0, 68.25], [-155.25, 68.35], [-155.5, 68.25], [-155.75, 68.35], [-156.0, 68.25], [-156.25, 68.35], [-156.5, 68.25], [-157.03, 68.47], [-157.25, 69.0], [-157.03, 69.53]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.W.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-11-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-156.03, 70.03], [-155.5, 70.25], [-155.25, 70.15], [-155.18, 70.18], [-155.15, 70.25], [-155.25, 70.5], [-155.03, 71.03], [-154.5, 71.25], [-154.25, 71.15], [-154.0, 71.25], [-153.47, 71.03], [-153.32, 70.68], [-152.97, 70.53], [-152.75, 70.0], [-152.97, 69.47], [-153.32, 69.32], [-153.35, 69.25], [-153.25, 69.0], [-153.47, 68.47], [-154.0, 68.25], [-154.25, 68.35], [-154.5, 68.25], [-154.75, 68.35], [-155.0, 68.25], [-155.25, 68.35], [-155.5, 68.25], [-155.75, 68.35], [-156.0, 68.25], [-156.53, 68.47], [-156.75, 69.0], [-156.53, 69.53], [-156.18, 69.68], [-156.03, 70.03]]]]}, "2022-11-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-156.5, 68.25], [-157.03, 68.47], [-157.25, 69.0], [-157.03, 69.53], [-156.5, 69.75], [-156.25, 69.65], [-156.18, 69.68], [-156.03, 70.03], [-155.5, 70.25], [-155.25, 70.15], [-155.18, 70.18], [-155.15, 70.25], [-155.25, 70.5], [-155.03, 71.03], [-154.5, 71.25], [-154.25, 71.15], [-154.0, 71.25], [-153.47, 71.03], [-153.32, 70.68], [-153.25, 70.65], [-153.0, 70.75], [-152.75, 70.65], [-152.5, 70.75], [-152.25, 70.65], [-152.18, 70.68], [-152.03, 71.03], [-151.5, 71.25], [-151.25, 71.15], [-151.0, 71.25], [-150.75, 71.15], [-150.5, 71.25], [-150.25, 71.15], [-150.0, 71.25], [-149.75, 71.15], [-149.5, 71.25], [-148.97, 71.03], [-148.82, 70.68], [-148.47, 70.53], [-148.25, 70.0], [-148.35, 69.75], [-148.25, 69.5], [-148.35, 69.25], [-148.25, 69.0], [-148.47, 68.47], [-149.0, 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"coordinates": [[[[-156.5, 68.25], [-157.03, 68.47], [-157.25, 69.0], [-157.03, 69.53], [-156.5, 69.75], [-156.25, 69.65], [-156.0, 69.75], [-155.75, 69.65], [-155.5, 69.75], [-155.25, 69.65], [-155.18, 69.68], [-155.03, 70.03], [-154.5, 70.25], [-154.0, 70.04], [-153.68, 70.18], [-153.53, 70.53], [-153.0, 70.75], [-152.75, 70.65], [-152.5, 70.75], [-152.25, 70.65], [-152.18, 70.68], [-152.03, 71.03], [-151.5, 71.25], [-151.25, 71.15], [-151.0, 71.25], [-150.75, 71.15], [-150.5, 71.25], [-150.25, 71.15], [-150.0, 71.25], [-149.75, 71.15], [-149.5, 71.25], [-148.97, 71.03], [-148.82, 70.68], [-148.47, 70.53], [-148.25, 70.0], [-148.35, 69.75], [-148.25, 69.5], [-148.35, 69.25], [-148.25, 69.0], [-148.47, 68.47], [-149.0, 68.25], [-149.25, 68.35], [-149.5, 68.25], [-149.75, 68.35], [-150.0, 68.25], [-150.25, 68.35], [-150.5, 68.25], [-150.75, 68.35], [-151.0, 68.25], [-151.25, 68.35], [-151.32, 68.32], [-151.47, 67.97], [-152.0, 67.75], [-152.25, 67.85], [-152.5, 67.75], [-152.75, 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"Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [9.38695664674148, 12.183945682950696, 11.669341230489131, 10.875674739105692]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [10.575915850510057, 14.412139804729946, 14.640886695663625, 13.55613050972562]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3285728577263627, 1.7043945026656746, 1.6488364401031341, 1.5403830598861565]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4590543186511853, 1.9364025086366172, 1.9551284010317063, 1.8212551908317518]}}