{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:10:40.165239", "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-27_to_2026-Mar-02_298.0_-42.5"}, "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": 2026020002619}, "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 27 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 02 2026"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 58270.3914965835}, "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"]}, "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": -42.5}, "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": 298.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "298.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 295.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 299.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -45.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -41.25}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-64.5, -42.25], [-64.0, -42.46], [-63.62, -42.3], [-63.75, -42.0], [-63.53, -41.47], [-63.18, -41.32], [-63.03, -40.97], [-62.5, -40.75], [-61.97, -40.97], [-61.75, -41.5], [-61.85, -41.75], [-61.82, -41.82], [-61.47, -41.97], [-61.32, -42.32], [-60.97, -42.47], [-60.82, -42.82], [-60.75, -42.85], [-60.5, -42.75], [-59.97, -42.97], [-59.75, -43.5], [-59.97, -44.03], [-60.5, -44.25], [-60.75, -44.15], [-60.87, -44.2], [-60.75, -44.5], [-60.97, -45.03], [-61.32, -45.18], [-61.47, -45.53], [-62.0, -45.75], [-62.25, -45.65], [-62.5, -45.75], [-62.75, -45.65], [-63.0, -45.75], [-63.53, -45.53], [-63.68, -45.18], [-63.75, -45.15], [-64.0, -45.25], [-64.53, -45.03], [-64.75, -44.5], [-64.65, -44.25], [-64.75, -44.0], [-64.65, -43.75], [-64.68, -43.68], [-65.03, -43.53], [-65.25, -43.0], [-65.03, -42.47], [-64.5, -42.25]], [[-62.32, -44.18], [-62.35, -44.25], [-62.32, -44.32], [-62.25, -44.35], [-62.18, -44.32], [-62.07, -44.07], [-62.32, -44.18]], [[-61.68, -43.68], [-61.8, -43.62], [-61.93, -43.93], [-61.62, -43.8], [-61.68, -43.68]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-02-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.52999999999997, -42.53], [-63.75, -42.0], [-63.52999999999997, -41.47], [-63.18000000000001, -41.32], [-63.02999999999997, -40.97], [-62.5, -40.75], [-61.97000000000003, -40.97], [-61.75, -41.5], [-61.85000000000002, -41.75], [-61.81999999999999, -41.82], [-61.47000000000003, -41.97], [-61.25, -42.5], [-61.47000000000003, -43.03], [-62.0, -43.25], [-62.25, -43.15], [-62.5, -43.25], [-63.02999999999997, -43.03], [-63.18000000000001, -42.68], [-63.52999999999997, -42.53]]]]}, "2026-02-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.02999999999997, -43.53], [-65.25, -43.0], [-65.02999999999997, -42.47], [-64.5, -42.25], [-64.0, -42.46], [-63.620000000000005, -42.3], [-63.75, -42.0], 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[-62.18000000000001, -44.32], [-62.06999999999999, -44.07], [-62.31999999999999, -44.18], [-62.35000000000002, -44.25], [-62.31999999999999, -44.32], [-62.25, -44.35]], [[-61.80000000000001, -43.62], [-61.93000000000001, -43.93], [-61.620000000000005, -43.8], [-61.68000000000001, -43.68], [-61.80000000000001, -43.62]]]]}, "2026-03-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.02999999999997, -43.53], [-65.25, -43.0], [-65.02999999999997, -42.47], [-64.5, -42.25], [-64.0, -42.46], [-63.620000000000005, -42.3], [-63.75, -42.0], [-63.52999999999997, -41.47], [-63.18000000000001, -41.32], [-63.02999999999997, -40.97], [-62.5, -40.75], [-61.97000000000003, -40.97], [-61.75, -41.5], [-61.85000000000002, -41.75], [-61.81999999999999, -41.82], [-61.47000000000003, -41.97], [-61.31999999999999, -42.32], [-60.97000000000003, -42.47], [-60.81999999999999, -42.82], [-60.75, -42.85], [-60.5, -42.75], [-59.97000000000003, -42.97], [-59.75, -43.5], [-59.97000000000003, 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"anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.619332897156505, 2.552182110353829, 3.257975662051426, 2.2729933257014636]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.8825050378562764, 3.226769846960451, 4.260038440750236, 2.547812165386347]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.401113711204058, 1.4366305403997166, 1.9209869679786447, 1.3978133456085722]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.501120948439086, 1.7856827804717448, 2.4074768027735693, 1.5442531109147166]}}