{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:45.007138", "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": "2015-Aug-29_to_2015-Aug-31_313.5_66.5"}, "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": 2015080002932}, "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 29 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 31 2015"}, "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": 428041.2427544126}, "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": ["Greenland"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Greenland/Iceland"]}, "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": 66.5}, "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": 313.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "313.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 308.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 326.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 65.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 75.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.75, 72.5], [-51.53, 73.03], [-51.18, 73.18], [-51.03, 73.53], [-50.68, 73.68], [-50.65, 73.75], [-50.75, 74.0], [-50.53, 74.53], [-50.0, 74.75], [-49.75, 74.65], [-49.5, 74.75], [-49.25, 74.65], [-49.0, 74.75], [-48.75, 74.65], [-48.5, 74.75], [-48.25, 74.65], [-48.0, 74.75], [-47.75, 74.65], [-47.5, 74.75], [-47.25, 74.65], [-47.18, 74.68], [-47.03, 75.03], [-46.5, 75.25], [-46.25, 75.15], [-46.0, 75.25], [-45.75, 75.15], [-45.5, 75.25], [-45.25, 75.15], [-45.0, 75.25], [-44.75, 75.15], [-44.5, 75.25], [-44.25, 75.15], [-44.0, 75.25], [-43.75, 75.15], [-43.5, 75.25], [-43.25, 75.15], [-43.0, 75.25], [-42.75, 75.15], [-42.5, 75.25], [-42.25, 75.15], [-42.0, 75.25], [-41.75, 75.15], [-41.5, 75.25], [-41.25, 75.15], [-41.18, 75.18], [-41.03, 75.53], [-40.5, 75.75], [-39.97, 75.53], [-39.82, 75.18], [-39.75, 75.15], [-39.5, 75.25], [-39.25, 75.15], [-39.0, 75.25], [-38.75, 75.15], [-38.5, 75.25], [-37.97, 75.03], [-37.82, 74.68], [-37.75, 74.65], [-37.5, 74.75], [-37.25, 74.65], [-37.0, 74.75], [-36.75, 74.65], [-36.5, 74.75], [-35.97, 74.53], [-35.75, 74.0], [-35.85, 73.75], [-35.82, 73.68], [-35.47, 73.53], [-35.32, 73.18], [-35.25, 73.15], [-35.0, 73.25], [-34.75, 73.15], [-34.5, 73.25], [-33.97, 73.03], [-33.82, 72.68], [-33.47, 72.53], [-33.25, 72.0], [-33.47, 71.47], [-34.0, 71.25], [-34.25, 71.35], [-34.32, 71.32], [-34.47, 70.97], [-34.82, 70.82], [-34.97, 70.47], [-35.32, 70.32], [-35.47, 69.97], [-36.0, 69.75], [-35.75, 69.65], [-35.5, 69.75], [-34.97, 69.53], [-34.82, 69.18], [-34.75, 69.15], [-34.5, 69.25], [-34.25, 69.15], [-34.0, 69.25], [-33.75, 69.15], [-33.5, 69.25], [-32.97, 69.03], [-32.75, 68.5], [-32.97, 67.97], [-33.5, 67.75], [-33.75, 67.85], [-33.82, 67.82], [-33.85, 67.75], [-33.75, 67.5], [-33.97, 66.97], [-34.32, 66.82], [-34.47, 66.47], [-35.0, 66.25], [-35.25, 66.35], [-35.32, 66.32], [-35.47, 65.97], [-36.0, 65.75], [-36.25, 65.85], [-36.5, 65.75], [-36.75, 65.85], [-37.0, 65.75], [-37.53, 65.97], [-37.75, 66.5], [-37.65, 66.75], [-37.68, 66.82], [-38.03, 66.97], [-38.25, 67.5], [-38.12, 67.8], [-38.25, 67.85], [-38.5, 67.75], [-38.75, 67.85], [-39.0, 67.75], [-39.25, 67.85], [-39.5, 67.75], [-39.75, 67.85], [-39.82, 67.82], [-39.97, 67.47], [-40.5, 67.25], [-40.75, 67.35], [-40.82, 67.32], [-40.85, 67.25], [-40.75, 67.0], [-40.85, 66.75], [-40.82, 66.68], [-40.47, 66.53], [-40.25, 66.0], [-40.47, 65.47], [-41.0, 65.25], [-41.53, 65.47], [-41.68, 65.82], [-41.75, 65.85], [-42.0, 65.75], [-42.25, 65.85], [-42.5, 65.75], [-43.0, 65.96], [-43.5, 65.75], [-44.03, 65.97], [-44.18, 66.32], [-44.53, 66.47], [-44.68, 66.82], [-45.03, 66.97], [-45.2, 67.38], [-45.5, 67.25], [-45.75, 67.35], [-45.82, 67.32], [-45.85, 67.25], [-45.82, 67.18], [-45.47, 67.03], [-45.25, 66.5], [-45.47, 65.97], [-46.0, 65.75], [-46.25, 65.85], [-46.5, 65.75], [-47.03, 65.97], [-47.25, 66.5], [-47.15, 66.75], [-47.18, 66.82], [-47.53, 66.97], [-47.68, 67.32], [-48.03, 67.47], [-48.18, 67.82], [-48.25, 67.85], [-48.32, 67.82], [-48.47, 67.47], [-49.0, 67.25], [-49.53, 67.47], [-49.75, 68.0], [-49.65, 68.25], [-49.75, 68.5], [-49.54, 69.0], [-49.68, 69.32], [-50.03, 69.47], [-50.25, 70.0], [-50.15, 70.25], [-50.18, 70.32], [-50.53, 70.47], [-50.75, 71.0], [-50.65, 71.25], [-50.68, 71.32], [-51.03, 71.47], [-51.18, 71.82], [-51.53, 71.97], [-51.75, 72.5]], [[-36.25, 69.85], [-36.32, 69.82], [-36.35, 69.75], [-36.32, 69.68], [-36.25, 69.65], [-36.0, 69.75], [-36.25, 69.85]]]]}, "2015-08-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.75, 72.5], [-51.53, 73.03], [-51.18, 73.18], [-51.03, 73.53], [-50.68, 73.68], [-50.65, 73.75], [-50.75, 74.0], [-50.53, 74.53], [-50.0, 74.75], [-49.75, 74.65], [-49.5, 74.75], [-49.25, 74.65], [-49.0, 74.75], [-48.75, 74.65], [-48.5, 74.75], [-48.25, 74.65], [-48.0, 74.75], [-47.75, 74.65], [-47.5, 74.75], [-47.25, 74.65], [-47.18, 74.68], [-47.03, 75.03], [-46.5, 75.25], [-46.25, 75.15], [-46.0, 75.25], [-45.75, 75.15], [-45.5, 75.25], [-45.25, 75.15], [-45.0, 75.25], [-44.75, 75.15], [-44.5, 75.25], [-44.25, 75.15], [-44.0, 75.25], [-43.75, 75.15], [-43.5, 75.25], [-43.25, 75.15], [-43.0, 75.25], [-42.75, 75.15], [-42.5, 75.25], [-42.25, 75.15], [-42.0, 75.25], [-41.75, 75.15], [-41.5, 75.25], [-41.25, 75.15], [-41.18, 75.18], [-41.03, 75.53], [-40.5, 75.75], [-39.97, 75.53], [-39.82, 75.18], [-39.75, 75.15], [-39.5, 75.25], [-39.25, 75.15], [-39.0, 75.25], [-38.75, 75.15], [-38.5, 75.25], [-37.97, 75.03], [-37.82, 74.68], [-37.75, 74.65], [-37.5, 74.75], [-37.25, 74.65], [-37.0, 74.75], [-36.75, 74.65], [-36.5, 74.75], [-35.97, 74.53], [-35.75, 74.0], [-35.85, 73.75], [-35.82, 73.68], [-35.47, 73.53], [-35.32, 73.18], [-35.25, 73.15], [-35.0, 73.25], [-34.75, 73.15], [-34.5, 73.25], [-33.97, 73.03], [-33.82, 72.68], [-33.47, 72.53], [-33.25, 72.0], [-33.47, 71.47], [-34.0, 71.25], [-34.25, 71.35], [-34.32, 71.32], [-34.47, 70.97], [-34.82, 70.82], [-34.97, 70.47], [-35.32, 70.32], [-35.47, 69.97], [-36.0, 69.75], [-35.75, 69.65], [-35.5, 69.75], [-34.97, 69.53], [-34.82, 69.18], [-34.75, 69.15], [-34.5, 69.25], [-34.25, 69.15], [-34.0, 69.25], [-33.75, 69.15], [-33.5, 69.25], [-32.97, 69.03], [-32.75, 68.5], [-32.97, 67.97], [-33.5, 67.75], [-33.75, 67.85], [-33.82, 67.82], [-33.85, 67.75], [-33.75, 67.5], [-33.97, 66.97], [-34.32, 66.82], [-34.47, 66.47], [-35.0, 66.25], [-35.25, 66.35], [-35.32, 66.32], [-35.47, 65.97], [-36.0, 65.75], [-36.25, 65.85], [-36.5, 65.75], [-36.75, 65.85], [-37.0, 65.75], [-37.53, 65.97], [-37.75, 66.5], [-37.65, 66.75], [-37.68, 66.82], [-38.03, 66.97], [-38.25, 67.5], [-38.12, 67.8], [-38.25, 67.85], [-38.5, 67.75], [-38.75, 67.85], [-39.0, 67.75], [-39.25, 67.85], [-39.5, 67.75], [-39.75, 67.85], [-39.82, 67.82], [-39.97, 67.47], [-40.5, 67.25], [-40.75, 67.35], [-40.82, 67.32], [-40.85, 67.25], [-40.75, 67.0], [-40.85, 66.75], [-40.82, 66.68], [-40.47, 66.53], [-40.25, 66.0], [-40.47, 65.47], [-41.0, 65.25], [-41.53, 65.47], [-41.68, 65.82], [-41.75, 65.85], [-42.0, 65.75], [-42.25, 65.85], [-42.5, 65.75], [-43.0, 65.96], [-43.5, 65.75], [-44.03, 65.97], [-44.18, 66.32], [-44.53, 66.47], [-44.68, 66.82], [-45.03, 66.97], [-45.2, 67.38], [-45.5, 67.25], [-45.75, 67.35], [-45.82, 67.32], [-45.85, 67.25], [-45.82, 67.18], [-45.47, 67.03], [-45.25, 66.5], [-45.47, 65.97], [-46.0, 65.75], [-46.25, 65.85], [-46.5, 65.75], [-47.03, 65.97], [-47.25, 66.5], [-47.15, 66.75], [-47.18, 66.82], [-47.53, 66.97], [-47.68, 67.32], [-48.03, 67.47], [-48.18, 67.82], [-48.25, 67.85], [-48.32, 67.82], [-48.47, 67.47], [-49.0, 67.25], [-49.53, 67.47], [-49.75, 68.0], [-49.65, 68.25], [-49.75, 68.5], [-49.54, 69.0], [-49.68, 69.32], [-50.03, 69.47], [-50.25, 70.0], [-50.15, 70.25], [-50.18, 70.32], [-50.53, 70.47], [-50.75, 71.0], [-50.65, 71.25], [-50.68, 71.32], [-51.03, 71.47], [-51.18, 71.82], [-51.53, 71.97], [-51.75, 72.5]], [[-36.25, 69.85], [-36.32, 69.82], [-36.35, 69.75], [-36.32, 69.68], [-36.25, 69.65], [-36.0, 69.75], [-36.25, 69.85]]]]}, "2015-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.75, 72.5], [-51.53, 73.03], [-51.18, 73.18], [-51.03, 73.53], [-50.68, 73.68], [-50.65, 73.75], [-50.75, 74.0], [-50.53, 74.53], [-50.0, 74.75], [-49.75, 74.65], [-49.5, 74.75], [-49.25, 74.65], [-49.0, 74.75], [-48.75, 74.65], [-48.5, 74.75], [-48.25, 74.65], [-48.0, 74.75], [-47.75, 74.65], [-47.5, 74.75], [-47.25, 74.65], [-47.18, 74.68], [-47.03, 75.03], [-46.5, 75.25], [-46.25, 75.15], [-46.0, 75.25], [-45.75, 75.15], [-45.5, 75.25], [-45.25, 75.15], [-45.0, 75.25], [-44.75, 75.15], [-44.5, 75.25], [-44.25, 75.15], [-44.0, 75.25], [-43.75, 75.15], [-43.5, 75.25], [-43.25, 75.15], [-43.0, 75.25], [-42.75, 75.15], [-42.5, 75.25], [-42.25, 75.15], [-42.0, 75.25], [-41.75, 75.15], [-41.5, 75.25], [-41.25, 75.15], [-41.18, 75.18], [-41.03, 75.53], [-40.5, 75.75], [-39.97, 75.53], [-39.82, 75.18], [-39.75, 75.15], [-39.5, 75.25], [-39.25, 75.15], [-39.0, 75.25], [-38.75, 75.15], [-38.5, 75.25], [-37.97, 75.03], [-37.82, 74.68], [-37.75, 74.65], [-37.5, 74.75], [-37.25, 74.65], [-37.0, 74.75], [-36.75, 74.65], [-36.5, 74.75], [-35.97, 74.53], [-35.75, 74.0], [-35.85, 73.75], [-35.82, 73.68], [-35.47, 73.53], [-35.32, 73.18], [-35.25, 73.15], [-35.0, 73.25], [-34.75, 73.15], [-34.5, 73.25], [-33.97, 73.03], [-33.82, 72.68], [-33.47, 72.53], [-33.25, 72.0], [-33.47, 71.47], [-34.0, 71.25], [-34.25, 71.35], [-34.32, 71.32], [-34.47, 70.97], [-34.82, 70.82], [-34.97, 70.47], [-35.32, 70.32], [-35.47, 69.97], [-36.0, 69.75], [-35.75, 69.65], [-35.5, 69.75], [-34.97, 69.53], [-34.82, 69.18], [-34.75, 69.15], [-34.5, 69.25], [-34.25, 69.15], [-34.0, 69.25], [-33.75, 69.15], [-33.5, 69.25], [-32.97, 69.03], [-32.75, 68.5], [-32.97, 67.97], [-33.5, 67.75], [-33.75, 67.85], [-33.82, 67.82], [-33.85, 67.75], [-33.75, 67.5], [-33.97, 66.97], [-34.32, 66.82], [-34.47, 66.47], [-35.0, 66.25], [-35.25, 66.35], [-35.32, 66.32], [-35.47, 65.97], [-36.0, 65.75], [-36.25, 65.85], [-36.5, 65.75], [-36.75, 65.85], [-37.0, 65.75], [-37.53, 65.97], [-37.75, 66.5], [-37.65, 66.75], [-37.68, 66.82], [-38.03, 66.97], [-38.25, 67.5], [-38.12, 67.8], [-38.25, 67.85], [-38.5, 67.75], [-38.75, 67.85], [-39.0, 67.75], [-39.25, 67.85], [-39.5, 67.75], [-39.75, 67.85], [-39.82, 67.82], [-39.97, 67.47], [-40.5, 67.25], [-40.75, 67.35], [-40.82, 67.32], [-40.85, 67.25], [-40.75, 67.0], [-40.85, 66.75], [-40.82, 66.68], [-40.47, 66.53], [-40.25, 66.0], [-40.47, 65.47], [-41.0, 65.25], [-41.53, 65.47], [-41.68, 65.82], [-41.75, 65.85], [-42.0, 65.75], [-42.25, 65.85], [-42.5, 65.75], [-43.0, 65.96], [-43.5, 65.75], [-44.03, 65.97], [-44.18, 66.32], [-44.53, 66.47], [-44.68, 66.82], [-45.03, 66.97], [-45.2, 67.38], [-45.5, 67.25], [-45.75, 67.35], [-45.82, 67.32], [-45.85, 67.25], [-45.82, 67.18], [-45.47, 67.03], [-45.25, 66.5], [-45.47, 65.97], [-46.0, 65.75], [-46.25, 65.85], [-46.5, 65.75], [-47.03, 65.97], [-47.25, 66.5], [-47.15, 66.75], [-47.18, 66.82], [-47.53, 66.97], [-47.68, 67.32], [-48.03, 67.47], [-48.18, 67.82], [-48.25, 67.85], [-48.32, 67.82], [-48.47, 67.47], [-49.0, 67.25], [-49.53, 67.47], [-49.75, 68.0], [-49.65, 68.25], [-49.75, 68.5], [-49.54, 69.0], [-49.68, 69.32], [-50.03, 69.47], [-50.25, 70.0], [-50.15, 70.25], [-50.18, 70.32], [-50.53, 70.47], [-50.75, 71.0], [-50.65, 71.25], [-50.68, 71.32], [-51.03, 71.47], [-51.18, 71.82], [-51.53, 71.97], [-51.75, 72.5]], [[-36.25, 69.85], [-36.32, 69.82], [-36.35, 69.75], [-36.32, 69.68], [-36.25, 69.65], [-36.0, 69.75], [-36.25, 69.85]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.171333748617627}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.599788952132677}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-7.314281485594847, -6.379620207395476, -6.264024644381209]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [3.2630495472567986, 4.158062435311535, 3.6700641193348815]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.86097559726709, 7.860433826192017, 8.077957432938893]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.57305546934208, 9.414757772519067, 10.171333748617627]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5068981616957404, 1.6632799768859161, 1.6610861786595734]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0146864282153456, 2.1089567811807783, 1.8455145215994984]}}