{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:52:44.986467", "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": "2024-Jul-20_to_2024-Jul-24_266.0_62.0"}, "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": 2024070002137}, "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": "July 20 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 24 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 63932.289546078784}, "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": ["Canada"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.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": ["Hudson Bay"]}, "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": 62.0}, "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": 266.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "266.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 261.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 268.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 60.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 65.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-98.03, 61.97], [-98.25, 62.5], [-98.03, 63.03], [-97.5, 63.25], [-96.97, 63.03], [-96.75, 62.5], [-96.97, 61.97], [-97.5, 61.75], [-98.03, 61.97]]], [[[-93.68, 65.18], [-93.53, 65.53], [-93.0, 65.75], [-92.75, 65.65], [-92.5, 65.75], [-91.97, 65.53], [-91.75, 65.0], [-91.87, 64.7], [-91.47, 64.53], [-91.25, 64.0], [-91.47, 63.47], [-91.82, 63.32], [-91.97, 62.97], [-92.5, 62.75], [-92.75, 62.85], [-93.0, 62.75], [-93.25, 62.85], [-93.5, 62.75], [-94.03, 62.97], [-94.25, 63.5], [-94.04, 64.0], [-94.25, 64.5], [-94.03, 65.03], [-93.68, 65.18]]]]}, "2024-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.5, 63.25], [-97.25, 63.15], [-97.0, 63.25], [-96.75, 63.15], [-96.5, 63.25], [-96.25, 63.15], [-96.18, 63.18], [-96.03, 63.53], [-95.5, 63.75], [-95.25, 63.65], [-95.0, 63.75], [-94.75, 63.65], [-94.5, 63.75], [-94.25, 63.65], [-94.18, 63.68], [-94.04, 64.0], [-94.25, 64.5], [-94.03, 65.03], [-93.68, 65.18], [-93.53, 65.53], [-93.0, 65.75], [-92.75, 65.65], [-92.5, 65.75], [-91.97, 65.53], [-91.75, 65.0], [-91.87, 64.7], [-91.47, 64.53], [-91.25, 64.0], [-91.46, 63.5], [-91.25, 63.0], [-91.47, 62.47], [-92.0, 62.25], [-92.25, 62.35], [-92.5, 62.25], [-92.75, 62.35], [-92.82, 62.32], [-92.97, 61.97], [-93.32, 61.82], [-93.47, 61.47], [-94.0, 61.25], [-94.25, 61.35], [-94.5, 61.25], [-94.75, 61.35], [-95.0, 61.25], [-95.25, 61.35], [-95.5, 61.25], [-95.75, 61.35], [-96.0, 61.25], [-96.25, 61.35], [-96.5, 61.25], [-96.75, 61.35], [-97.0, 61.25], [-97.25, 61.35], [-97.5, 61.25], [-97.75, 61.35], [-98.0, 61.25], [-98.53, 61.47], [-98.75, 62.0], [-98.53, 62.53], [-98.18, 62.68], [-98.03, 63.03], [-97.5, 63.25]]]]}, "2024-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.5, 63.25], [-97.25, 63.15], [-97.0, 63.25], [-96.75, 63.15], [-96.5, 63.25], [-96.25, 63.15], [-96.18, 63.18], [-96.03, 63.53], [-95.5, 63.75], [-95.25, 63.65], [-95.0, 63.75], [-94.75, 63.65], [-94.5, 63.75], [-94.25, 63.65], [-94.18, 63.68], [-94.04, 64.0], [-94.25, 64.5], [-94.03, 65.03], [-93.68, 65.18], [-93.53, 65.53], [-93.0, 65.75], [-92.75, 65.65], [-92.5, 65.75], [-91.97, 65.53], [-91.75, 65.0], [-91.87, 64.7], [-91.47, 64.53], [-91.25, 64.0], [-91.46, 63.5], [-91.25, 63.0], [-91.47, 62.47], [-91.82, 62.32], [-91.97, 61.97], [-92.32, 61.82], [-92.47, 61.47], [-93.0, 61.25], [-93.25, 61.35], [-93.32, 61.32], [-93.47, 60.97], [-93.82, 60.82], [-93.97, 60.47], [-94.5, 60.25], [-94.75, 60.35], [-95.0, 60.25], [-95.25, 60.35], [-95.5, 60.25], [-96.03, 60.47], [-96.25, 61.0], [-96.12, 61.3], [-96.25, 61.35], [-96.5, 61.25], [-96.75, 61.35], [-97.0, 61.25], [-97.25, 61.35], [-97.5, 61.25], [-97.75, 61.35], [-98.0, 61.25], [-98.53, 61.47], [-98.75, 62.0], [-98.53, 62.53], [-98.18, 62.68], [-98.03, 63.03], [-97.5, 63.25]]]]}, "2024-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.5, 63.25], [-97.25, 63.15], [-97.0, 63.25], [-96.75, 63.15], [-96.5, 63.25], [-96.25, 63.15], [-96.18, 63.18], [-96.03, 63.53], [-95.5, 63.75], [-95.25, 63.65], [-95.0, 63.75], [-94.75, 63.65], [-94.5, 63.75], [-94.25, 63.65], [-94.18, 63.68], [-94.04, 64.0], [-94.25, 64.5], [-94.03, 65.03], [-93.68, 65.18], [-93.53, 65.53], [-93.0, 65.75], [-92.75, 65.65], [-92.5, 65.75], [-91.97, 65.53], [-91.75, 65.0], [-91.87, 64.7], [-91.47, 64.53], [-91.25, 64.0], [-91.46, 63.5], [-91.25, 63.0], [-91.47, 62.47], [-91.82, 62.32], [-91.97, 61.97], [-92.32, 61.82], [-92.47, 61.47], [-93.0, 61.25], [-93.25, 61.35], [-93.32, 61.32], [-93.47, 60.97], [-93.82, 60.82], [-93.97, 60.47], [-94.5, 60.25], [-94.75, 60.35], [-95.0, 60.25], [-95.25, 60.35], [-95.5, 60.25], [-96.03, 60.47], [-96.25, 61.0], [-96.12, 61.3], [-96.25, 61.35], [-96.5, 61.25], [-96.75, 61.35], [-97.0, 61.25], [-97.25, 61.35], [-97.5, 61.25], [-97.75, 61.35], [-98.0, 61.25], [-98.53, 61.47], [-98.75, 62.0], [-98.53, 62.53], [-98.18, 62.68], [-98.03, 63.03], [-97.5, 63.25]]]]}, "2024-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-95.18, 62.18], [-95.03, 62.53], [-94.5, 62.75], [-94.25, 62.65], [-94.0, 62.75], [-93.75, 62.65], [-93.68, 62.68], [-93.53, 63.03], [-93.0, 63.25], [-92.75, 63.15], [-92.68, 63.18], [-92.53, 63.53], [-92.0, 63.75], [-91.47, 63.53], [-91.25, 63.0], [-91.47, 62.47], [-91.82, 62.32], [-91.97, 61.97], [-92.32, 61.82], [-92.47, 61.47], [-93.0, 61.25], [-93.25, 61.35], [-93.32, 61.32], [-93.47, 60.97], [-93.82, 60.82], [-93.97, 60.47], [-94.5, 60.25], [-94.75, 60.35], [-95.0, 60.25], [-95.25, 60.35], [-95.5, 60.25], [-96.03, 60.47], [-96.25, 61.0], [-96.03, 61.53], [-95.68, 61.68], [-95.53, 62.03], [-95.18, 62.18]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 11.22547861864291}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.94374598114679}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.16836092844926, 18.604928056725043, 20.27853234729838, 22.003169760095147, 18.00881933520941]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.60668825635173, 19.736442290090224, 22.293770662286704, 24.24524379508614, 20.217327916092188]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.204686638622758, 5.3235680561815375, 7.13188810742186, 8.820020456505947, 5.497443960030169]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.557592815081364, 6.250977264988876, 8.925700498935157, 11.22547861864291, 6.838017363718507]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5295083496887787, 1.5588012647578633, 2.1358189527233913, 2.642393862787354, 1.7090133109769072]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6860271010843193, 1.8135976249514247, 2.7058417876582013, 3.278735179809727, 1.979858373684959]}}