{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:01.258796", "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": "2011-Jul-10_to_2011-Jul-12_275.0_41.0"}, "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": 2011070002303}, "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 10 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 12 2011"}, "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": 53119.36252319851}, "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", "United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": 41.0}, "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": 275.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "275.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 271.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 277.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 40.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 43.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-07-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-88.0, 42.25], [-87.75, 42.15], [-87.5, 42.25], [-87.25, 42.15], [-87.0, 42.25], [-86.47, 42.03], [-86.32, 41.68], [-86.25, 41.65], [-86.18, 41.68], [-86.03, 42.03], [-85.68, 42.18], [-85.53, 42.53], [-85.0, 42.75], [-84.75, 42.65], [-84.5, 42.75], [-84.0, 42.54], [-83.68, 42.68], [-83.65, 42.75], [-83.75, 43.0], [-83.53, 43.53], [-83.0, 43.75], [-82.47, 43.53], [-82.32, 43.18], [-81.97, 43.03], [-81.75, 42.5], [-81.85, 42.25], [-81.75, 42.0], [-81.85, 41.75], [-81.75, 41.5], [-81.97, 40.97], [-82.5, 40.75], [-82.75, 40.85], [-83.0, 40.75], [-83.25, 40.85], [-83.5, 40.75], [-83.75, 40.85], [-84.0, 40.75], [-84.25, 40.85], [-84.32, 40.82], [-84.47, 40.47], [-85.0, 40.25], [-85.25, 40.35], [-85.5, 40.25], [-85.75, 40.35], [-86.0, 40.25], [-86.25, 40.35], [-86.5, 40.25], [-87.03, 40.47], [-87.18, 40.82], [-87.25, 40.85], [-87.5, 40.75], [-87.75, 40.85], [-87.82, 40.82], [-87.97, 40.47], [-88.5, 40.25], [-89.03, 40.47], [-89.25, 41.0], [-89.03, 41.53], [-88.68, 41.68], [-88.53, 42.03], [-88.0, 42.25]]]]}, "2011-07-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-88.0, 42.25], [-87.75, 42.15], [-87.5, 42.25], [-87.25, 42.15], [-87.0, 42.25], [-86.47, 42.03], [-86.32, 41.68], [-86.25, 41.65], [-86.18, 41.68], [-86.03, 42.03], [-85.68, 42.18], [-85.53, 42.53], [-85.0, 42.75], [-84.75, 42.65], [-84.5, 42.75], [-84.0, 42.54], [-83.68, 42.68], [-83.65, 42.75], [-83.75, 43.0], [-83.53, 43.53], [-83.0, 43.75], [-82.47, 43.53], [-82.32, 43.18], [-81.97, 43.03], [-81.75, 42.5], [-81.85, 42.25], [-81.75, 42.0], [-81.85, 41.75], [-81.75, 41.5], [-81.97, 40.97], [-82.5, 40.75], [-82.75, 40.85], [-83.0, 40.75], [-83.25, 40.85], [-83.5, 40.75], [-83.75, 40.85], [-84.0, 40.75], [-84.25, 40.85], [-84.32, 40.82], [-84.47, 40.47], [-85.0, 40.25], [-85.25, 40.35], [-85.5, 40.25], [-85.75, 40.35], [-86.0, 40.25], [-86.25, 40.35], [-86.5, 40.25], [-87.03, 40.47], [-87.18, 40.82], [-87.25, 40.85], [-87.5, 40.75], [-87.75, 40.85], [-87.82, 40.82], [-87.97, 40.47], [-88.5, 40.25], [-89.03, 40.47], [-89.25, 41.0], [-89.03, 41.53], [-88.68, 41.68], [-88.53, 42.03], [-88.0, 42.25]]]]}, "2011-07-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-88.0, 42.25], [-87.75, 42.15], [-87.5, 42.25], [-87.25, 42.15], [-87.0, 42.25], [-86.47, 42.03], [-86.32, 41.68], [-86.25, 41.65], [-86.18, 41.68], [-86.03, 42.03], [-85.68, 42.18], [-85.53, 42.53], [-85.0, 42.75], [-84.75, 42.65], [-84.5, 42.75], [-84.0, 42.54], [-83.68, 42.68], [-83.65, 42.75], [-83.75, 43.0], [-83.53, 43.53], [-83.0, 43.75], [-82.47, 43.53], [-82.32, 43.18], [-81.97, 43.03], [-81.75, 42.5], [-81.85, 42.25], [-81.75, 42.0], [-81.85, 41.75], [-81.75, 41.5], [-81.97, 40.97], [-82.5, 40.75], [-82.75, 40.85], [-83.0, 40.75], [-83.25, 40.85], [-83.5, 40.75], [-83.75, 40.85], [-84.0, 40.75], [-84.25, 40.85], [-84.32, 40.82], [-84.47, 40.47], [-85.0, 40.25], [-85.25, 40.35], [-85.5, 40.25], [-85.75, 40.35], [-86.0, 40.25], [-86.25, 40.35], [-86.5, 40.25], [-87.03, 40.47], [-87.18, 40.82], [-87.25, 40.85], [-87.5, 40.75], [-87.75, 40.85], [-87.82, 40.82], [-87.97, 40.47], [-88.5, 40.25], [-89.03, 40.47], [-89.25, 41.0], [-89.03, 41.53], [-88.68, 41.68], [-88.53, 42.03], [-88.0, 42.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.6621524403577155}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.8292872756261787}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.89433443831018, 27.238270730726754, 26.88467658728132]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.613489171454148, 29.428393356392064, 28.465644261144746]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.7673176854493233, 4.0592566816517515, 3.6612874597774607]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.6799884969960885, 5.6621524403577155, 5.068964086396818]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4856917840125559, 1.6570287440542213, 1.5483345607524923]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8064510779920202, 2.251730911297652, 2.198121398789683]}}