{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-08-31 16:20:39.935844", "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": "2026-Aug-21_to_2026-Aug-23_318.0_10.0"}, "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": 2026080001868}, "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": true}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "August 21 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 23 2026"}, "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": 97587.2875162654}, "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": []}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Atlantic-Ocean"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": []}, "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": 10.0}, "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": 318.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "318.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 314.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 321.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 10.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.25, 9.0], [-46.03, 9.53], [-45.5, 9.75], [-45.0, 9.54], [-44.68, 9.68], [-44.53, 10.03], [-44.0, 10.25], [-43.75, 10.15], [-43.5, 10.25], [-43.25, 10.15], [-43.18, 10.18], [-43.03, 10.53], [-42.68, 10.68], [-42.53, 11.03], [-42.0, 11.25], [-41.75, 11.15], [-41.5, 11.25], [-41.25, 11.15], [-41.0, 11.25], [-40.75, 11.15], [-40.5, 11.25], [-39.97, 11.03], [-39.75, 10.5], [-39.85, 10.25], [-39.75, 10.0], [-39.87, 9.7], [-39.75, 9.65], [-39.5, 9.75], [-39.25, 9.65], [-39.0, 9.75], [-38.47, 9.53], [-38.25, 9.0], [-38.47, 8.47], [-39.0, 8.25], [-39.25, 8.35], [-39.32, 8.32], [-39.47, 7.97], [-40.0, 7.75], [-40.53, 7.97], [-40.68, 8.32], [-40.75, 8.35], [-41.0, 8.25], [-41.25, 8.35], [-41.5, 8.25], [-41.75, 8.35], [-42.0, 8.25], [-42.5, 8.46], [-43.0, 8.25], [-43.25, 8.35], [-43.5, 8.25], [-43.75, 8.35], [-43.82, 8.32], [-43.97, 7.97], [-44.32, 7.82], [-44.47, 7.47], [-45.0, 7.25], [-45.53, 7.47], [-45.75, 8.0], [-45.65, 8.25], [-45.68, 8.32], [-46.03, 8.47], [-46.25, 9.0]]]]}, "2026-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.25, 9.0], [-46.03, 9.53], [-45.5, 9.75], [-45.0, 9.54], [-44.68, 9.68], [-44.53, 10.03], [-44.0, 10.25], [-43.75, 10.15], [-43.5, 10.25], [-43.25, 10.15], [-43.18, 10.18], [-43.03, 10.53], [-42.68, 10.68], [-42.53, 11.03], [-42.0, 11.25], [-41.75, 11.15], [-41.5, 11.25], [-41.25, 11.15], [-41.0, 11.25], [-40.75, 11.15], [-40.5, 11.25], [-39.97, 11.03], [-39.75, 10.5], [-39.85, 10.25], [-39.75, 10.0], [-39.87, 9.7], [-39.75, 9.65], [-39.5, 9.75], [-39.25, 9.65], [-39.0, 9.75], [-38.47, 9.53], [-38.25, 9.0], [-38.47, 8.47], [-39.0, 8.25], [-39.25, 8.35], [-39.32, 8.32], [-39.47, 7.97], [-40.0, 7.75], [-40.53, 7.97], [-40.68, 8.32], [-40.75, 8.35], [-41.0, 8.25], [-41.25, 8.35], [-41.5, 8.25], [-41.75, 8.35], [-42.0, 8.25], [-42.5, 8.46], [-43.0, 8.25], [-43.25, 8.35], [-43.5, 8.25], [-43.75, 8.35], [-43.82, 8.32], [-43.97, 7.97], [-44.32, 7.82], [-44.47, 7.47], [-45.0, 7.25], [-45.53, 7.47], [-45.75, 8.0], [-45.65, 8.25], [-45.68, 8.32], [-46.03, 8.47], [-46.25, 9.0]]]]}, "2026-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.25, 9.0], [-46.03, 9.53], [-45.5, 9.75], [-45.0, 9.54], [-44.68, 9.68], [-44.53, 10.03], [-44.0, 10.25], [-43.75, 10.15], [-43.5, 10.25], [-43.25, 10.15], [-43.18, 10.18], [-43.03, 10.53], [-42.68, 10.68], [-42.53, 11.03], [-42.0, 11.25], [-41.75, 11.15], [-41.5, 11.25], [-41.25, 11.15], [-41.0, 11.25], [-40.75, 11.15], [-40.5, 11.25], [-39.97, 11.03], [-39.75, 10.5], [-39.85, 10.25], [-39.75, 10.0], [-39.87, 9.7], [-39.75, 9.65], [-39.5, 9.75], [-39.25, 9.65], [-39.0, 9.75], [-38.47, 9.53], [-38.25, 9.0], [-38.47, 8.47], [-39.0, 8.25], [-39.25, 8.35], [-39.32, 8.32], [-39.47, 7.97], [-40.0, 7.75], [-40.53, 7.97], [-40.68, 8.32], [-40.75, 8.35], [-41.0, 8.25], [-41.25, 8.35], [-41.5, 8.25], [-41.75, 8.35], [-42.0, 8.25], [-42.5, 8.46], [-43.0, 8.25], [-43.25, 8.35], [-43.5, 8.25], [-43.75, 8.35], [-43.82, 8.32], [-43.97, 7.97], [-44.32, 7.82], [-44.47, 7.47], [-45.0, 7.25], [-45.53, 7.47], [-45.75, 8.0], [-45.65, 8.25], [-45.68, 8.32], [-46.03, 8.47], [-46.25, 9.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.058913135393425}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.1642870001895702}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.148177083333337, 27.654256439209064, 27.473516082763638]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.59399566650393, 28.37735519409182, 27.904162343343103]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.9138153429874549, 1.385725367694624, 1.193320289886632]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.4245434789913816, 2.058913135393425, 1.3967361843202752]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7321739946160868, 2.538768941974599, 2.1662299818751016]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.4335669916272757, 3.5405979045231053, 2.7828193151221754]}}