{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:10.762345", "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": "2016-Aug-24_to_2016-Aug-27_290.0_41.5"}, "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": 2016080002780}, "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": "August 24 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 27 2016"}, "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": 50438.06100282627}, "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"]}, "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": ["North Atlantic Ocean"]}, "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": 41.5}, "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": 290.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "290.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 287.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 291.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 40.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 44.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-08-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.53, 40.97], [-70.75, 41.5], [-70.53, 42.03], [-70.0, 42.25], [-69.47, 42.03], [-69.25, 41.5], [-69.47, 40.97], [-70.0, 40.75], [-70.53, 40.97]]], [[[-69.53, 42.47], [-69.75, 43.0], [-69.53, 43.53], [-69.0, 43.75], [-68.47, 43.53], [-68.25, 43.0], [-68.47, 42.47], [-69.0, 42.25], [-69.53, 42.47]]]]}, "2016-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-71.5, 41.75], [-71.25, 41.65], [-71.18, 41.68], [-71.03, 42.03], [-70.68, 42.18], [-70.65, 42.25], [-70.75, 42.5], [-70.65, 42.75], [-70.75, 43.0], [-70.65, 43.25], [-70.68, 43.32], [-71.03, 43.47], [-71.25, 44.0], [-71.03, 44.53], [-70.5, 44.75], [-69.97, 44.53], [-69.82, 44.18], [-69.75, 44.15], [-69.5, 44.25], [-68.97, 44.03], [-68.82, 43.68], [-68.75, 43.65], [-68.5, 43.75], [-67.97, 43.53], [-67.75, 43.0], [-67.85, 42.75], [-67.75, 42.5], [-67.97, 41.97], [-68.32, 41.82], [-68.47, 41.47], [-69.0, 41.25], [-69.25, 41.35], [-69.32, 41.32], [-69.47, 40.97], [-69.82, 40.82], [-69.97, 40.47], [-70.32, 40.32], [-70.47, 39.97], [-71.0, 39.75], [-71.25, 39.85], [-71.5, 39.75], [-71.75, 39.85], [-72.0, 39.75], [-72.53, 39.97], [-72.75, 40.5], [-72.53, 41.03], [-72.18, 41.18], [-72.03, 41.53], [-71.5, 41.75]]]]}, "2016-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-71.5, 41.75], [-71.25, 41.65], [-71.18, 41.68], [-71.03, 42.03], [-70.68, 42.18], [-70.65, 42.25], [-70.75, 42.5], [-70.65, 42.75], [-70.75, 43.0], [-70.65, 43.25], [-70.68, 43.32], [-71.03, 43.47], [-71.25, 44.0], [-71.03, 44.53], [-70.5, 44.75], [-69.97, 44.53], [-69.82, 44.18], [-69.75, 44.15], [-69.5, 44.25], [-68.97, 44.03], [-68.82, 43.68], [-68.75, 43.65], [-68.5, 43.75], [-67.97, 43.53], [-67.75, 43.0], [-67.85, 42.75], [-67.75, 42.5], [-67.97, 41.97], [-68.32, 41.82], [-68.47, 41.47], [-69.0, 41.25], [-69.25, 41.35], [-69.32, 41.32], [-69.47, 40.97], [-69.82, 40.82], [-69.97, 40.47], [-70.32, 40.32], [-70.47, 39.97], [-71.0, 39.75], [-71.25, 39.85], [-71.5, 39.75], [-71.75, 39.85], [-72.0, 39.75], [-72.53, 39.97], [-72.75, 40.5], [-72.53, 41.03], [-72.18, 41.18], [-72.03, 41.53], [-71.5, 41.75]]]]}, "2016-08-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-71.5, 41.75], [-71.25, 41.65], [-71.18, 41.68], [-71.03, 42.03], [-70.68, 42.18], [-70.65, 42.25], [-70.75, 42.5], [-70.65, 42.75], [-70.75, 43.0], [-70.65, 43.25], [-70.68, 43.32], [-71.03, 43.47], [-71.25, 44.0], [-71.03, 44.53], [-70.5, 44.75], [-69.97, 44.53], [-69.82, 44.18], [-69.75, 44.15], [-69.5, 44.25], [-68.97, 44.03], [-68.82, 43.68], [-68.75, 43.65], [-68.5, 43.75], [-67.97, 43.53], [-67.75, 43.0], [-67.85, 42.75], [-67.75, 42.5], [-67.97, 41.97], [-68.32, 41.82], [-68.47, 41.47], [-69.0, 41.25], [-69.25, 41.35], [-69.32, 41.32], [-69.47, 40.97], [-69.82, 40.82], [-69.97, 40.47], [-70.32, 40.32], [-70.47, 39.97], [-71.0, 39.75], [-71.25, 39.85], [-71.5, 39.75], [-71.75, 39.85], [-72.0, 39.75], [-72.53, 39.97], [-72.75, 40.5], [-72.53, 41.03], [-72.18, 41.18], [-72.03, 41.53], [-71.5, 41.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.613566369857779}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.3979352396194487}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.290947447467886, 21.88728959711915, 22.549441542120462, 22.20649212244274]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.64818079575508, 23.733890029861982, 24.7629245533696, 24.638463362074674]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.9703241533949267, 2.034862943856643, 2.766609939396672, 2.4312065707163515]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.038980426829312, 3.430214916334535, 4.613566369857779, 3.721046752823895]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4699384009997594, 1.481202002002771, 1.9900944424476805, 1.7100834464132786]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4787569461943222, 1.765563157779603, 2.319661231793801, 2.058923165868021]}}