{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:10:37.628911", "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-Feb-22_to_2026-Feb-24_310.0_3.5"}, "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": 2026020002367}, "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": "February 22 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 24 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": 64784.622984879854}, "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": ["Brazil"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": ["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": 3.5}, "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": 310.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "310.0\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": 314.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 2.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 4.75}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-51.75, 3.0], [-51.53, 3.53], [-51.0, 3.75], [-50.75, 3.65], [-50.68, 3.68], [-50.65, 3.75], [-50.75, 4.0], [-50.53, 4.53], [-50.0, 4.75], [-49.75, 4.65], [-49.5, 4.75], [-49.25, 4.65], [-49.0, 4.75], [-48.75, 4.65], [-48.68, 4.68], [-48.53, 5.03], [-48.0, 5.25], [-47.47, 5.03], [-47.32, 4.68], [-46.97, 4.53], [-46.82, 4.18], [-46.75, 4.15], [-46.5, 4.25], [-46.25, 4.15], [-46.0, 4.25], [-45.75, 4.15], [-45.5, 4.25], [-44.97, 4.03], [-44.75, 3.5], [-44.97, 2.97], [-45.5, 2.75], [-45.75, 2.85], [-46.0, 2.75], [-46.25, 2.85], [-46.5, 2.75], [-46.75, 2.85], [-47.0, 2.75], [-47.25, 2.85], [-47.5, 2.75], [-47.75, 2.85], [-48.0, 2.75], [-48.25, 2.85], [-48.5, 2.75], [-48.75, 2.85], [-49.0, 2.75], [-49.25, 2.85], [-49.32, 2.82], [-49.35, 2.75], [-49.25, 2.5], [-49.47, 1.97], [-50.0, 1.75], [-50.53, 1.97], [-50.68, 2.32], [-50.75, 2.35], [-51.0, 2.25], [-51.53, 2.47], [-51.75, 3.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America", "Equatorial.Atlantic-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-02-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.0, 2.25], [-51.52999999999997, 2.47], [-51.75, 3.0], [-51.52999999999997, 3.53], [-51.0, 3.75], [-50.75, 3.65], [-50.68000000000001, 3.68], [-50.64999999999998, 3.75], [-50.75, 4.0], [-50.52999999999997, 4.53], [-50.0, 4.75], [-49.75, 4.65], [-49.5, 4.75], [-49.25, 4.65], [-49.0, 4.75], [-48.75, 4.65], [-48.68000000000001, 4.68], [-48.52999999999997, 5.03], [-48.0, 5.25], [-47.47000000000003, 5.03], [-47.31999999999999, 4.68], [-46.97000000000003, 4.53], [-46.81999999999999, 4.18], [-46.75, 4.15], [-46.5, 4.25], [-46.25, 4.15], [-46.0, 4.25], [-45.75, 4.15], [-45.5, 4.25], [-44.97000000000003, 4.03], [-44.75, 3.5], [-44.97000000000003, 2.97], [-45.5, 2.75], [-45.75, 2.85], [-46.0, 2.75], [-46.25, 2.85], [-46.5, 2.75], [-46.75, 2.85], [-47.0, 2.75], [-47.25, 2.85], [-47.5, 2.75], [-47.75, 2.85], [-48.0, 2.75], [-48.25, 2.85], [-48.5, 2.75], [-48.75, 2.85], [-49.0, 2.75], [-49.25, 2.85], [-49.31999999999999, 2.82], [-49.35000000000002, 2.75], [-49.25, 2.5], [-49.47000000000003, 1.97], [-50.0, 1.75], [-50.52999999999997, 1.97], [-50.68000000000001, 2.32], [-50.75, 2.35], [-51.0, 2.25]]]]}, "2026-02-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.0, 2.25], [-51.52999999999997, 2.47], [-51.75, 3.0], [-51.52999999999997, 3.53], [-51.0, 3.75], [-50.75, 3.65], [-50.68000000000001, 3.68], [-50.64999999999998, 3.75], [-50.75, 4.0], [-50.52999999999997, 4.53], [-50.0, 4.75], [-49.75, 4.65], [-49.5, 4.75], [-49.25, 4.65], [-49.0, 4.75], [-48.75, 4.65], [-48.68000000000001, 4.68], [-48.52999999999997, 5.03], [-48.0, 5.25], [-47.47000000000003, 5.03], [-47.31999999999999, 4.68], [-46.97000000000003, 4.53], [-46.81999999999999, 4.18], [-46.75, 4.15], [-46.5, 4.25], [-46.25, 4.15], [-46.0, 4.25], [-45.75, 4.15], [-45.5, 4.25], [-44.97000000000003, 4.03], [-44.75, 3.5], [-44.97000000000003, 2.97], [-45.5, 2.75], [-45.75, 2.85], [-46.0, 2.75], [-46.25, 2.85], [-46.5, 2.75], [-46.75, 2.85], [-47.0, 2.75], [-47.25, 2.85], [-47.5, 2.75], [-47.75, 2.85], [-48.0, 2.75], [-48.25, 2.85], [-48.5, 2.75], [-48.75, 2.85], [-49.0, 2.75], [-49.25, 2.85], [-49.31999999999999, 2.82], [-49.35000000000002, 2.75], [-49.25, 2.5], [-49.47000000000003, 1.97], [-50.0, 1.75], [-50.52999999999997, 1.97], [-50.68000000000001, 2.32], [-50.75, 2.35], [-51.0, 2.25]]]]}, "2026-02-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.0, 2.25], [-51.52999999999997, 2.47], [-51.75, 3.0], [-51.52999999999997, 3.53], [-51.0, 3.75], [-50.75, 3.65], [-50.68000000000001, 3.68], [-50.64999999999998, 3.75], [-50.75, 4.0], [-50.52999999999997, 4.53], [-50.0, 4.75], [-49.75, 4.65], [-49.5, 4.75], [-49.25, 4.65], [-49.0, 4.75], [-48.75, 4.65], [-48.68000000000001, 4.68], [-48.52999999999997, 5.03], [-48.0, 5.25], [-47.47000000000003, 5.03], [-47.31999999999999, 4.68], [-46.97000000000003, 4.53], [-46.81999999999999, 4.18], [-46.75, 4.15], [-46.5, 4.25], [-46.25, 4.15], [-46.0, 4.25], [-45.75, 4.15], [-45.5, 4.25], [-44.97000000000003, 4.03], [-44.75, 3.5], [-44.97000000000003, 2.97], [-45.5, 2.75], [-45.75, 2.85], [-46.0, 2.75], [-46.25, 2.85], [-46.5, 2.75], [-46.75, 2.85], [-47.0, 2.75], [-47.25, 2.85], [-47.5, 2.75], [-47.75, 2.85], [-48.0, 2.75], [-48.25, 2.85], [-48.5, 2.75], [-48.75, 2.85], [-49.0, 2.75], [-49.25, 2.85], [-49.31999999999999, 2.82], [-49.35000000000002, 2.75], [-49.25, 2.5], [-49.47000000000003, 1.97], [-50.0, 1.75], [-50.52999999999997, 1.97], [-50.68000000000001, 2.32], [-50.75, 2.35], [-51.0, 2.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 0.9648448600132156}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.7566720175889665}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.66593891930961, 26.76290446690149, 26.778145454043454]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.764614359537802, 26.8631416320801, 26.899785614013695]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.7050389372153605, 0.7819219414390524, 0.7830551741124866]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.779550920358929, 0.9648448600132156, 0.9623907652617163]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3505273305654817, 1.4693995801973725, 1.4538823330726127]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4734737991531, 1.6328897096811825, 1.6309861213374752]}}