{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:44.117667", "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": "2013-Oct-01_to_2013-Oct-05_284.5_59.5"}, "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": 2013100001619}, "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": "October 01 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 05 2013"}, "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": 55845.58119163237}, "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": 59.5}, "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": 284.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "284.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 282.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 287.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 58.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 61.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-10-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-77.0, 60.25], [-76.75, 60.15], [-76.68, 60.18], [-76.53, 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[-75.75, 61.65], [-75.5, 61.75], [-75.25, 61.65], [-75.0, 61.75], [-74.47, 61.53], [-74.25, 61.0], [-74.37, 60.7], [-74.25, 60.65], [-74.0, 60.75], [-73.75, 60.65], [-73.5, 60.75], [-72.97, 60.53], [-72.75, 60.0], [-72.85, 59.75], [-72.82, 59.68], [-72.47, 59.53], [-72.25, 59.0], [-72.47, 58.47], [-73.0, 58.25], [-73.25, 58.35], [-73.5, 58.25], [-74.03, 58.47], [-74.18, 58.82], [-74.25, 58.85], [-74.32, 58.82], [-74.47, 58.47], [-75.0, 58.25], [-75.25, 58.35], [-75.5, 58.25], [-75.75, 58.35], [-76.0, 58.25], [-76.25, 58.35], [-76.5, 58.25], [-76.75, 58.35], [-77.0, 58.25], [-77.25, 58.35], [-77.5, 58.25], [-78.03, 58.47], [-78.25, 59.0], [-78.15, 59.25], [-78.25, 59.5], [-78.15, 59.75]]]]}, "2013-10-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-78.15, 59.75], [-78.25, 60.0], [-78.04, 60.5], [-78.25, 61.0], [-78.03, 61.53], [-77.5, 61.75], [-77.25, 61.65], [-77.0, 61.75], [-76.75, 61.65], [-76.5, 61.75], [-76.25, 61.65], [-76.0, 61.75], [-75.75, 61.65], [-75.5, 61.75], [-75.25, 61.65], [-75.0, 61.75], [-74.47, 61.53], [-74.25, 61.0], [-74.37, 60.7], [-74.25, 60.65], [-74.0, 60.75], [-73.75, 60.65], [-73.5, 60.75], [-72.97, 60.53], [-72.75, 60.0], [-72.85, 59.75], [-72.82, 59.68], [-72.47, 59.53], [-72.25, 59.0], [-72.47, 58.47], [-73.0, 58.25], [-73.25, 58.35], [-73.5, 58.25], [-74.03, 58.47], [-74.18, 58.82], [-74.25, 58.85], [-74.32, 58.82], [-74.47, 58.47], [-75.0, 58.25], [-75.25, 58.35], [-75.5, 58.25], [-75.75, 58.35], [-76.0, 58.25], [-76.25, 58.35], [-76.5, 58.25], [-76.75, 58.35], [-77.0, 58.25], [-77.25, 58.35], [-77.5, 58.25], [-78.03, 58.47], [-78.25, 59.0], [-78.15, 59.25], [-78.25, 59.5], [-78.15, 59.75]]]]}, "2013-10-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-78.15, 59.75], [-78.25, 60.0], [-78.04, 60.5], [-78.25, 61.0], [-78.03, 61.53], [-77.5, 61.75], [-77.25, 61.65], [-77.0, 61.75], [-76.75, 61.65], [-76.5, 61.75], [-76.25, 61.65], [-76.0, 61.75], [-75.75, 61.65], [-75.5, 61.75], [-75.25, 61.65], 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"Maximum t2m anomaly recorded over entire duration", "value": 8.479898813248155}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.453240078405817}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [7.3858238307954025, 8.976502638927514, 6.281495031917586, 5.459892880953703, 5.835929296189306]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [8.924338048569723, 10.063372435435042, 7.73124368799057, 7.189433121401976, 6.184872028833922]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.161142110432983, 7.312752319967853, 4.885743180353878, 4.196290793137055, 4.215716515656977]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.6909894700959285, 8.479898813248155, 6.213222737089154, 4.803661678040385, 4.907664157379884]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7704677677836798, 2.5958412831504405, 1.799072563181068, 1.5954743266864326, 1.5967392846624626]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.138933269617836, 2.7832846792246957, 2.361668186808334, 1.9144285201837643, 1.8189337168999462]}}