{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:57:02.816200", "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": "2025-Sep-10_to_2025-Sep-16_291.0_-23.0"}, "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": 2025090001520}, "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": "September 10 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 16 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 109173.9128682043}, "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": ["Argentina", "Bolivia", "Chile"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America", "S.W.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South 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": -23.0}, "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": 291.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "291.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 289.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 293.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -25.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -18.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-09-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.75, -22.0], [-69.53, -21.47], [-69.0, -21.25], [-68.47, -21.47], [-68.25, -22.0], [-68.46, -22.5], [-68.25, -23.0], [-68.35, -23.25], [-68.25, -23.5], [-68.47, -24.03], [-69.0, -24.25], [-69.43, -24.07], [-69.25, -24.5], [-69.47, -25.03], [-70.0, -25.25], [-70.53, -25.03], [-70.75, -24.5], [-70.53, -23.97], [-70.0, -23.75], [-69.57, -23.93], [-69.75, -23.5], [-69.65, -23.25], [-69.75, -23.0], [-69.54, -22.5], [-69.75, -22.0]]], [[[-69.5, -17.75], [-69.25, -17.85], [-69.0, -17.75], [-68.47, -17.97], [-68.32, -18.32], [-67.97, -18.47], [-67.75, -19.0], [-67.85, -19.25], [-67.75, -19.5], [-67.85, -19.75], [-67.75, -20.0], [-67.97, -20.53], [-68.5, -20.75], [-69.03, -20.53], [-69.25, -20.0], [-69.15, -19.75], [-69.18, -19.68], [-69.25, -19.65], [-69.5, -19.75], [-70.03, -19.53], [-70.25, -19.0], [-70.15, -18.75], [-70.25, -18.5], [-70.03, -17.97], [-69.5, -17.75]]]]}, "2025-09-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.97, -22.03], [-68.32, -22.18], [-68.46, -22.5], [-68.25, -23.0], [-68.35, -23.25], [-68.25, -23.5], [-68.47, -24.03], [-69.0, -24.25], [-69.43, -24.07], [-69.25, -24.5], [-69.47, -25.03], [-70.0, -25.25], [-70.53, -25.03], [-70.75, -24.5], [-70.53, -23.97], [-70.0, -23.75], [-69.57, -23.93], [-69.75, -23.5], [-69.65, -23.25], [-69.75, -23.0], [-69.54, -22.5], [-69.75, -22.0], [-69.65, -21.75], [-69.75, -21.5], [-69.53, -20.97], [-69.0, -20.75], [-68.75, -20.85], [-68.5, -20.75], [-67.97, -20.97], [-67.75, -21.5], [-67.97, -22.03]]], [[[-65.75, -22.0], [-65.85, -22.25], [-65.75, -22.5], [-65.97, -23.03], [-66.5, -23.25], [-66.75, -23.15], [-67.0, -23.25], [-67.53, -23.03], [-67.75, -22.5], [-67.53, -21.97], [-67.18, -21.82], [-67.03, -21.47], [-66.5, -21.25], [-65.97, -21.47], [-65.75, -22.0]]], [[[-69.25, -17.85], [-69.0, -17.75], [-68.47, -17.97], [-68.32, -18.32], [-67.97, -18.47], [-67.75, -19.0], [-67.85, -19.25], [-67.75, -19.5], [-67.85, -19.75], [-67.75, -20.0], [-67.97, -20.53], [-68.5, -20.75], [-69.03, -20.53], [-69.18, -20.18], [-69.53, -20.03], [-69.68, -19.68], [-70.03, -19.53], [-70.25, -19.0], [-70.15, -18.75], [-70.25, -18.5], [-70.03, -17.97], [-69.5, -17.75], [-69.25, -17.85]]]]}, "2025-09-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.53, -23.97], [-70.0, -23.75], [-69.57, -23.93], [-69.75, -23.5], [-69.65, -23.25], [-69.75, -23.0], [-69.54, -22.5], [-69.75, -22.0], [-69.65, -21.75], [-69.75, -21.5], [-69.53, -20.97], [-69.0, -20.75], [-68.75, -20.85], [-68.68, -20.82], [-68.65, -20.75], [-68.68, -20.68], [-69.03, -20.53], [-69.18, -20.18], [-69.53, -20.03], [-69.68, -19.68], [-70.03, -19.53], [-70.25, -19.0], [-70.15, -18.75], [-70.25, -18.5], [-70.03, -17.97], [-69.5, -17.75], [-69.25, -17.85], [-69.0, -17.75], [-68.47, -17.97], [-68.32, -18.32], [-67.97, -18.47], [-67.75, -19.0], [-67.85, -19.25], [-67.82, -19.32], [-67.47, -19.47], [-67.25, -20.0], [-67.35, -20.25], [-67.25, -20.5], [-67.35, -20.75], [-67.25, -21.0], [-67.35, -21.25], [-67.25, -21.5], [-67.43, -21.93], [-67.18, -21.82], [-67.03, -21.47], [-66.5, -21.25], [-65.97, -21.47], [-65.75, -22.0], [-65.85, -22.25], [-65.75, -22.5], [-65.85, -22.75], [-65.75, -23.0], [-65.97, -23.53], [-66.5, -23.75], [-66.75, -23.65], [-67.0, -23.75], [-67.53, -23.53], [-67.75, -23.0], [-67.65, -22.75], [-67.75, -22.5], [-67.57, -22.07], [-68.0, -22.25], [-68.25, -22.15], [-68.32, -22.18], [-68.46, -22.5], [-68.25, -23.0], [-68.35, -23.25], [-68.25, -23.5], [-68.47, -24.03], [-69.0, -24.25], [-69.43, -24.07], [-69.25, -24.5], [-69.35, -24.75], [-69.25, -25.0], [-69.47, -25.53], [-70.0, -25.75], [-70.53, -25.53], [-70.75, -25.0], [-70.65, -24.75], [-70.75, -24.5], [-70.53, -23.97]]]]}, "2025-09-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.53, -23.97], [-70.0, -23.75], [-69.75, -23.85], [-69.62, -23.8], [-69.68, -23.68], [-70.03, -23.53], [-70.25, -23.0], [-70.03, -22.47], [-69.68, -22.32], [-69.54, -22.0], [-69.75, -21.5], [-69.53, -20.97], [-69.0, -20.75], [-68.75, -20.85], [-68.68, -20.82], [-68.65, -20.75], [-68.68, -20.68], [-69.03, -20.53], [-69.18, -20.18], [-69.25, -20.15], [-69.5, -20.25], [-70.03, -20.03], [-70.25, -19.5], [-70.15, -19.25], [-70.25, -19.0], [-70.03, -18.47], [-69.68, -18.32], [-69.53, -17.97], [-69.0, -17.75], [-68.47, -17.97], [-68.32, -18.32], [-67.97, -18.47], [-67.75, -19.0], [-67.85, -19.25], [-67.82, -19.32], [-67.75, -19.35], [-67.5, -19.25], [-67.25, -19.35], [-67.0, -19.25], [-66.47, -19.47], [-66.25, -20.0], [-66.35, -20.25], [-66.25, -20.5], [-66.47, -21.03], [-67.0, -21.25], [-67.3, -21.12], [-67.35, -21.25], [-67.25, -21.5], [-67.43, -21.93], [-67.18, -21.82], [-67.03, -21.47], [-66.5, -21.25], [-65.97, -21.47], [-65.75, -22.0], [-65.85, -22.25], [-65.75, -22.5], [-65.85, -22.75], [-65.75, -23.0], [-65.97, -23.53], [-66.5, -23.75], [-66.75, -23.65], [-67.0, -23.75], [-67.5, -23.54], [-68.0, -23.75], [-68.3, -23.62], [-68.47, -24.03], [-68.87, -24.2], [-68.75, -24.5], [-68.97, -25.03], [-69.32, -25.18], [-69.47, -25.53], [-70.0, -25.75], [-70.53, -25.53], [-70.75, -25.0], [-70.65, -24.75], [-70.75, -24.5], [-70.53, -23.97]], [[-67.7, -22.38], [-67.57, -22.07], [-67.87, -22.2], [-67.82, -22.32], [-67.7, -22.38]]]]}, "2025-09-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.53, -23.97], [-70.18, -23.82], [-70.15, -23.75], [-70.25, -23.5], [-70.15, -23.25], [-70.25, -23.0], [-70.03, -22.47], [-69.68, -22.32], [-69.54, -22.0], [-69.75, -21.5], [-69.53, -20.97], [-69.0, -20.75], [-68.75, -20.85], [-68.68, -20.82], [-68.65, -20.75], [-68.68, -20.68], [-69.03, -20.53], [-69.18, -20.18], [-69.25, -20.15], [-69.5, -20.25], [-70.03, -20.03], [-70.25, -19.5], [-70.15, -19.25], [-70.25, -19.0], [-70.03, -18.47], [-69.68, -18.32], [-69.53, -17.97], [-69.0, -17.75], [-68.47, -17.97], [-68.32, -18.32], [-67.97, -18.47], [-67.75, -19.0], [-67.85, -19.25], [-67.82, -19.32], [-67.75, -19.35], [-67.5, -19.25], [-67.25, -19.35], [-67.0, -19.25], [-66.47, -19.47], [-66.25, -20.0], [-66.35, -20.25], [-66.25, -20.5], [-66.47, -21.03], [-66.87, -21.2], [-66.8, -21.38], [-66.5, -21.25], [-65.97, -21.47], [-65.75, -22.0], [-65.96, -22.5], [-65.75, -23.0], [-65.85, -23.25], [-65.75, -23.5], [-65.97, -24.03], [-66.5, -24.25], [-67.03, -24.03], [-67.18, -23.68], [-67.5, -23.54], [-68.0, -23.75], [-68.3, -23.62], [-68.47, -24.03], [-68.82, -24.18], [-68.85, -24.25], [-68.75, -24.5], [-68.97, -25.03], [-69.32, -25.18], [-69.47, -25.53], [-70.0, -25.75], [-70.53, -25.53], [-70.75, -25.0], [-70.65, -24.75], [-70.75, -24.5], [-70.53, -23.97]]]]}, "2025-09-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.25, -23.5], [-70.15, -23.25], [-70.25, -23.0], [-70.03, -22.47], [-69.68, -22.32], [-69.54, -22.0], [-69.75, -21.5], [-69.53, -20.97], [-69.0, -20.75], [-68.75, -20.85], [-68.68, -20.82], [-68.65, -20.75], [-68.68, -20.68], [-69.03, -20.53], [-69.18, -20.18], [-69.25, -20.15], [-69.5, -20.25], [-70.03, -20.03], [-70.25, -19.5], [-70.15, -19.25], [-70.25, -19.0], [-70.03, -18.47], [-69.68, -18.32], [-69.53, -17.97], [-69.0, -17.75], [-68.47, -17.97], [-68.25, -18.5], [-68.35, -18.75], [-68.25, -19.0], [-68.35, -19.25], [-68.32, -19.32], [-68.25, -19.35], [-68.0, -19.25], [-67.75, -19.35], [-67.5, -19.25], [-67.25, -19.35], [-67.0, -19.25], [-66.47, -19.47], [-66.25, -20.0], [-66.35, -20.25], [-66.25, -20.5], [-66.47, -21.03], [-66.87, -21.2], [-66.8, -21.38], [-66.5, -21.25], [-65.97, -21.47], [-65.75, -22.0], [-65.96, -22.5], [-65.75, -23.0], [-65.85, -23.25], [-65.75, -23.5], [-65.97, -24.03], [-66.5, -24.25], [-67.03, -24.03], [-67.18, -23.68], [-67.5, -23.54], [-68.0, -23.75], [-68.3, -23.62], [-68.47, -24.03], [-68.82, -24.18], [-68.85, -24.25], [-68.75, -24.5], [-68.97, -25.03], [-69.5, -25.25], [-69.75, -25.15], [-70.0, -25.25], [-70.53, -25.03], [-70.75, -24.5], [-70.53, -23.97], [-70.18, -23.82], [-70.15, -23.75], [-70.25, -23.5]]]]}, "2025-09-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.15, -23.25], [-70.25, -23.0], [-70.03, -22.47], [-69.5, -22.25], [-69.25, -22.35], [-69.0, -22.25], [-68.47, -22.47], [-68.25, -23.0], [-68.47, -23.53], [-68.82, -23.68], [-68.85, -23.75], [-68.75, -24.0], [-68.97, -24.53], [-69.32, -24.68], [-69.47, -25.03], [-70.0, -25.25], [-70.53, -25.03], [-70.75, -24.5], [-70.53, -23.97], [-70.18, -23.82], [-70.15, -23.75], [-70.25, -23.5], [-70.15, -23.25]]], [[[-67.5, -20.75], [-66.97, -20.97], [-66.75, -21.5], [-66.85, -21.75], [-66.75, -22.0], [-66.87, -22.3], [-66.47, -22.47], [-66.32, -22.82], [-65.97, -22.97], [-65.75, -23.5], [-65.97, -24.03], [-66.5, -24.25], [-67.03, -24.03], [-67.18, -23.68], [-67.53, -23.53], [-67.75, -23.0], [-67.62, -22.7], [-68.03, -22.53], [-68.25, -22.0], [-68.15, -21.75], [-68.25, -21.5], [-68.03, -20.97], [-67.5, -20.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.26103790834901}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.9789910562652273}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.121203127774322, 11.027191117230586, 10.461458672417507, 11.43042358070295, 11.623728288922962, 11.658125813802144, 12.923007936830857]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.94346135457357, 19.385747528076195, 18.96216735839846, 19.101497904459677, 19.7720937093099, 19.652803039550804, 19.50994008382162]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.9442886561533843, 3.1998617351825205, 3.1304919176950015, 2.9274946716770534, 2.894567331540132, 2.993911343794741, 2.652843642041786]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.6249635398564237, 4.26103790834901, 4.0538388792427895, 3.6635532961013837, 3.854699999724403, 4.109923336670306, 3.5186190187018838]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.574383798209203, 1.6549773007912467, 1.5587277937940598, 1.4905435303617782, 1.5172818010979714, 1.5780136187902674, 1.480293936470584]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8264291326464464, 2.0850445245179934, 1.8299376735861412, 1.776027195594973, 1.9226940775932064, 1.9720166749156567, 1.7101591440058956]}}