{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:05.193485", "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-Mar-22_to_2011-Mar-24_280.5_34.0"}, "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": 2011030002326}, "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": "March 22 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 24 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": 183874.74797445835}, "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": 34.0}, "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": 280.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "280.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 273.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 283.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 30.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 35.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-03-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-86.53, 32.53], [-86.0, 32.75], [-85.75, 32.65], [-85.5, 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30.97], [-81.5, 30.75], [-81.75, 30.85], [-82.0, 30.75], [-82.25, 30.85], [-82.5, 30.75], [-82.75, 30.85], [-83.0, 30.75], [-83.25, 30.85], [-83.32, 30.82], [-83.47, 30.47], [-84.0, 30.25], [-84.25, 30.35], [-84.5, 30.25], [-85.03, 30.47], [-85.18, 30.82], [-85.25, 30.85], [-85.5, 30.75], [-85.75, 30.85], [-86.0, 30.75], [-86.53, 30.97], [-86.75, 31.5], [-86.65, 31.75], [-86.75, 32.0], [-86.53, 32.53]]]]}, "2011-03-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-86.53, 32.53], [-86.0, 32.75], [-85.75, 32.65], [-85.5, 32.75], [-85.25, 32.65], [-85.0, 32.75], [-84.75, 32.65], [-84.5, 32.75], [-84.25, 32.65], [-84.0, 32.75], [-83.75, 32.65], [-83.62, 32.7], [-83.75, 33.0], [-83.53, 33.53], [-83.0, 33.75], [-82.75, 33.65], [-82.68, 33.68], [-82.53, 34.03], [-82.0, 34.25], [-81.75, 34.15], [-81.68, 34.18], [-81.53, 34.53], [-81.18, 34.68], [-81.03, 35.03], [-80.68, 35.18], [-80.53, 35.53], [-80.0, 35.75], [-79.75, 35.65], [-79.5, 35.75], [-79.25, 35.65], [-79.0, 35.75], 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t2m", "description": "The daily evolution of maximum t2m.", "value": [23.60155597197587, 24.315958173605225, 24.209223340331334]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.490991338505496, 7.137761951388944, 6.801821956412904]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.362548532448159, 10.409710419064595, 8.334173078901472]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.646303997271601, 1.766785452300341, 1.6523758322219524]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0334995958567172, 2.278999292570345, 2.1447218934094163]}}