{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:51:37.632890", "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-Apr-02_to_2024-Apr-04_261.5_62.5"}, "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": 2024040000892}, "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": "April 02 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 04 2024"}, "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": 68530.63659884257}, "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": []}, "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": 62.5}, "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": 261.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "261.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 257.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 261.75}, "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": 65.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-04-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-103.03, 63.03], [-102.68, 63.18], [-102.53, 63.53], [-102.18, 63.68], [-102.03, 64.03], [-101.68, 64.18], [-101.65, 64.25], [-101.75, 64.5], [-101.65, 64.75], [-101.75, 65.0], [-101.53, 65.53], [-101.18, 65.68], [-101.03, 66.03], [-100.5, 66.25], [-100.25, 66.15], [-100.0, 66.25], [-99.75, 66.15], [-99.5, 66.25], [-98.97, 66.03], [-98.75, 65.5], [-98.85, 65.25], [-98.75, 65.0], [-98.96, 64.5], [-98.82, 64.18], [-98.47, 64.03], [-98.25, 63.5], [-98.35, 63.25], [-98.32, 63.18], [-97.97, 63.03], [-97.75, 62.5], [-97.97, 61.97], [-98.32, 61.82], [-98.47, 61.47], [-99.0, 61.25], [-99.25, 61.35], [-99.5, 61.25], [-99.75, 61.35], [-99.82, 61.32], [-99.97, 60.97], [-100.32, 60.82], [-100.47, 60.47], [-101.0, 60.25], [-101.25, 60.35], [-101.5, 60.25], [-102.03, 60.47], [-102.18, 60.82], [-102.53, 60.97], [-102.68, 61.32], [-103.03, 61.47], [-103.25, 62.0], [-103.15, 62.25], [-103.25, 62.5], [-103.03, 63.03]]]]}, "2024-04-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-103.03, 63.03], [-102.68, 63.18], [-102.53, 63.53], [-102.18, 63.68], [-102.03, 64.03], [-101.68, 64.18], [-101.65, 64.25], [-101.75, 64.5], [-101.65, 64.75], [-101.75, 65.0], [-101.53, 65.53], [-101.18, 65.68], [-101.03, 66.03], [-100.5, 66.25], [-100.25, 66.15], [-100.0, 66.25], [-99.75, 66.15], [-99.5, 66.25], [-98.97, 66.03], [-98.75, 65.5], [-98.85, 65.25], [-98.75, 65.0], [-98.96, 64.5], [-98.82, 64.18], [-98.47, 64.03], [-98.25, 63.5], [-98.35, 63.25], [-98.32, 63.18], [-97.97, 63.03], [-97.75, 62.5], [-97.97, 61.97], [-98.32, 61.82], [-98.47, 61.47], [-99.0, 61.25], [-99.25, 61.35], [-99.5, 61.25], [-99.75, 61.35], [-99.82, 61.32], [-99.97, 60.97], [-100.32, 60.82], [-100.47, 60.47], [-101.0, 60.25], [-101.25, 60.35], [-101.5, 60.25], [-102.03, 60.47], [-102.18, 60.82], [-102.53, 60.97], [-102.68, 61.32], [-103.03, 61.47], [-103.25, 62.0], [-103.15, 62.25], [-103.25, 62.5], [-103.03, 63.03]]]]}, "2024-04-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-103.03, 63.03], [-102.68, 63.18], [-102.53, 63.53], [-102.18, 63.68], [-102.03, 64.03], [-101.68, 64.18], [-101.65, 64.25], [-101.75, 64.5], [-101.65, 64.75], [-101.75, 65.0], [-101.53, 65.53], [-101.18, 65.68], [-101.03, 66.03], [-100.5, 66.25], [-100.25, 66.15], [-100.0, 66.25], [-99.75, 66.15], [-99.5, 66.25], [-98.97, 66.03], [-98.75, 65.5], [-98.85, 65.25], [-98.75, 65.0], [-98.96, 64.5], [-98.82, 64.18], [-98.47, 64.03], [-98.25, 63.5], [-98.35, 63.25], [-98.32, 63.18], [-97.97, 63.03], [-97.75, 62.5], [-97.97, 61.97], [-98.32, 61.82], [-98.47, 61.47], [-99.0, 61.25], [-99.25, 61.35], [-99.5, 61.25], [-99.75, 61.35], [-99.82, 61.32], [-99.97, 60.97], [-100.32, 60.82], [-100.47, 60.47], [-101.0, 60.25], [-101.25, 60.35], [-101.5, 60.25], [-102.03, 60.47], [-102.18, 60.82], [-102.53, 60.97], [-102.68, 61.32], [-103.03, 61.47], [-103.25, 62.0], [-103.15, 62.25], [-103.25, 62.5], [-103.03, 63.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 14.752694278525212}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 11.099119757166278}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-7.837884877967269, -6.77387310451104, -4.49594003009571]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-3.544768330876707, -2.5554264570783403, -2.290811116572513]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [9.930526730016108, 10.667597388377795, 12.69923515310492]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [10.873341395983346, 12.651502971740712, 14.752694278525212]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5033736289682502, 1.6322899442835581, 1.9438342487294327]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6641723668414667, 1.9768847566153966, 2.3096498539807144]}}