{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:52:58.689005", "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": "2023-Apr-27_to_2023-Apr-30_298.5_-35.5"}, "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": 2023040002734}, "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": "April 27 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 30 2023"}, "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": 262643.26557192183}, "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", "Uruguay"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "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": -35.5}, "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": 298.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "298.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 296.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 304.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -39.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -32.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-62.97, -31.97], [-62.82, -32.32], [-62.75, -32.35], [-62.5, -32.25], [-61.97, -32.47], [-61.82, -32.82], [-61.47, -32.97], [-61.32, -33.32], [-61.25, -33.35], [-61.0, -33.25], [-60.75, -33.35], [-60.5, -33.25], [-60.25, -33.35], [-60.0, -33.25], [-59.75, -33.35], [-59.5, -33.25], [-59.25, -33.35], [-59.0, -33.25], [-58.75, -33.35], [-58.5, -33.25], [-58.25, -33.35], [-58.0, -33.25], [-57.47, -33.47], [-57.32, -33.82], [-56.97, -33.97], [-56.82, -34.32], [-56.47, -34.47], [-56.32, -34.82], [-56.25, -34.85], [-56.0, -34.75], [-55.47, -34.97], [-55.25, -35.5], [-55.35, -35.75], [-55.25, -36.0], [-55.35, -36.25], [-55.25, -36.5], [-55.35, -36.75], [-55.25, -37.0], [-55.47, -37.53], [-55.82, -37.68], [-55.85, -37.75], [-55.75, -38.0], [-55.85, -38.25], [-55.75, -38.5], [-55.85, -38.75], [-55.75, -39.0], [-55.97, -39.53], [-56.32, -39.68], [-56.47, -40.03], [-57.0, -40.25], [-57.25, -40.15], [-57.5, -40.25], [-57.75, -40.15], [-58.0, -40.25], [-58.53, -40.03], [-58.68, -39.68], [-59.03, -39.53], [-59.25, -39.0], [-59.15, -38.75], [-59.25, -38.5], [-59.04, -38.0], [-59.25, -37.5], [-59.15, -37.25], [-59.18, -37.18], [-59.25, -37.15], [-59.5, -37.25], [-59.75, -37.15], [-60.0, -37.25], [-60.25, -37.15], [-60.5, -37.25], [-60.75, -37.15], [-60.82, -37.18], [-60.97, -37.53], [-61.5, -37.75], [-62.03, -37.53], [-62.25, -37.0], [-62.15, -36.75], [-62.18, -36.68], [-62.25, -36.65], [-62.5, -36.75], [-63.03, -36.53], [-63.25, -36.0], [-63.03, -35.47], [-62.62, -35.3], [-62.75, -35.0], [-62.65, -34.75], [-62.68, -34.68], [-63.03, -34.53], [-63.18, -34.18], [-63.53, -34.03], [-63.68, -33.68], [-64.03, -33.53], [-64.25, -33.0], [-64.15, -32.75], [-64.25, -32.5], [-64.03, -31.97], [-63.5, -31.75], [-62.97, -31.97]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America", "S.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.5, -36.75], [-63.02999999999997, -36.53], [-63.25, -36.0], [-63.02999999999997, -35.47], [-62.5, -35.25], [-62.25, -35.35], [-62.18000000000001, -35.32], [-62.02999999999997, -34.97], [-61.5, -34.75], [-60.97000000000003, -34.97], [-60.75, -35.5], [-60.97000000000003, -36.03], [-61.31999999999999, -36.18], [-61.47000000000003, -36.53], [-62.0, -36.75], [-62.25, -36.65], [-62.5, -36.75]]]]}, "2023-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, -32.5], [-64.02999999999997, -31.97], [-63.5, -31.75], [-62.97000000000003, -31.97], [-62.81999999999999, -32.32], [-62.75, -32.35], [-62.5, -32.25], [-61.97000000000003, -32.47], [-61.81999999999999, -32.82], [-61.47000000000003, -32.97], [-61.31999999999999, -33.32], [-61.25, -33.35], [-61.0, -33.25], [-60.75, -33.35], [-60.5, -33.25], [-60.25, -33.35], [-60.0, -33.25], [-59.75, -33.35], [-59.5, -33.25], [-59.25, -33.35], [-59.0, -33.25], [-58.75, -33.35], [-58.5, -33.25], [-58.25, -33.35], [-58.0, -33.25], [-57.47000000000003, -33.47], [-57.31999999999999, -33.82], [-56.97000000000003, -33.97], [-56.81999999999999, -34.32], [-56.47000000000003, -34.47], [-56.31999999999999, -34.82], [-56.25, -34.85], [-56.0, -34.75], [-55.47000000000003, -34.97], [-55.25, -35.5], [-55.35000000000002, -35.75], [-55.25, -36.0], [-55.35000000000002, -36.25], [-55.25, -36.5], [-55.35000000000002, -36.75], [-55.25, -37.0], [-55.47000000000003, -37.53], [-55.81999999999999, -37.68], [-55.85000000000002, -37.75], [-55.75, -38.0], [-55.85000000000002, -38.25], [-55.75, -38.5], [-55.85000000000002, -38.75], [-55.75, -39.0], [-55.97000000000003, -39.53], [-56.31999999999999, -39.68], [-56.47000000000003, -40.03], [-57.0, -40.25], [-57.25, -40.15], [-57.5, -40.25], [-57.75, -40.15], [-58.0, -40.25], [-58.52999999999997, -40.03], [-58.68000000000001, -39.68], [-59.02999999999997, -39.53], [-59.25, -39.0], [-59.14999999999998, -38.75], [-59.25, -38.5], [-59.04000000000002, -38.0], [-59.25, -37.5], [-59.14999999999998, -37.25], [-59.18000000000001, -37.18], [-59.25, -37.15], [-59.5, -37.25], [-59.75, -37.15], [-60.0, -37.25], [-60.25, -37.15], [-60.5, -37.25], [-60.75, -37.15], [-60.81999999999999, -37.18], [-60.97000000000003, -37.53], [-61.5, -37.75], [-62.02999999999997, -37.53], [-62.25, -37.0], [-62.14999999999998, -36.75], [-62.18000000000001, -36.68], [-62.25, -36.65], [-62.5, -36.75], [-63.02999999999997, -36.53], [-63.25, -36.0], [-63.02999999999997, -35.47], [-62.620000000000005, -35.3], [-62.75, -35.0], [-62.64999999999998, -34.75], [-62.68000000000001, -34.68], [-63.02999999999997, -34.53], [-63.18000000000001, -34.18], [-63.52999999999997, -34.03], [-63.68000000000001, -33.68], [-64.02999999999997, -33.53], [-64.25, -33.0], [-64.14999999999998, -32.75], [-64.25, -32.5]]]]}, "2023-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, -32.5], [-64.02999999999997, -31.97], [-63.5, -31.75], [-62.97000000000003, -31.97], [-62.81999999999999, -32.32], [-62.75, -32.35], [-62.5, -32.25], [-61.97000000000003, -32.47], [-61.81999999999999, -32.82], [-61.47000000000003, -32.97], [-61.31999999999999, -33.32], [-61.25, -33.35], [-61.0, -33.25], [-60.75, -33.35], [-60.5, -33.25], [-60.25, -33.35], [-60.0, -33.25], [-59.75, -33.35], [-59.5, -33.25], [-59.25, -33.35], [-59.0, -33.25], [-58.75, -33.35], [-58.5, -33.25], [-58.25, -33.35], [-58.0, -33.25], [-57.47000000000003, -33.47], [-57.31999999999999, -33.82], [-56.97000000000003, -33.97], [-56.81999999999999, -34.32], [-56.47000000000003, -34.47], [-56.31999999999999, -34.82], [-56.25, -34.85], [-56.0, -34.75], [-55.47000000000003, -34.97], [-55.25, -35.5], [-55.35000000000002, -35.75], [-55.25, -36.0], [-55.35000000000002, -36.25], [-55.25, -36.5], [-55.35000000000002, -36.75], [-55.25, -37.0], [-55.47000000000003, -37.53], [-55.81999999999999, -37.68], [-55.85000000000002, -37.75], [-55.75, -38.0], [-55.85000000000002, -38.25], [-55.75, -38.5], [-55.85000000000002, -38.75], [-55.75, -39.0], [-55.97000000000003, -39.53], [-56.31999999999999, -39.68], [-56.47000000000003, -40.03], [-57.0, -40.25], [-57.25, -40.15], [-57.5, -40.25], [-57.75, -40.15], [-58.0, -40.25], [-58.52999999999997, -40.03], [-58.68000000000001, -39.68], [-59.02999999999997, -39.53], [-59.25, -39.0], [-59.14999999999998, -38.75], [-59.25, -38.5], [-59.04000000000002, -38.0], [-59.25, -37.5], [-59.14999999999998, -37.25], [-59.18000000000001, -37.18], [-59.25, -37.15], [-59.5, -37.25], [-59.75, -37.15], [-60.0, -37.25], [-60.25, -37.15], [-60.5, -37.25], [-60.75, -37.15], [-60.81999999999999, -37.18], [-60.97000000000003, -37.53], [-61.5, -37.75], [-62.02999999999997, -37.53], [-62.25, -37.0], [-62.14999999999998, -36.75], [-62.18000000000001, -36.68], [-62.25, -36.65], [-62.5, -36.75], [-63.02999999999997, -36.53], [-63.25, -36.0], [-63.02999999999997, -35.47], [-62.620000000000005, -35.3], [-62.75, -35.0], [-62.64999999999998, -34.75], [-62.68000000000001, -34.68], [-63.02999999999997, -34.53], [-63.18000000000001, -34.18], [-63.52999999999997, -34.03], [-63.68000000000001, -33.68], [-64.02999999999997, -33.53], [-64.25, -33.0], [-64.14999999999998, -32.75], [-64.25, -32.5]]]]}, "2023-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, -32.5], [-64.02999999999997, -31.97], [-63.5, -31.75], [-62.97000000000003, -31.97], [-62.81999999999999, -32.32], [-62.75, -32.35], [-62.5, -32.25], [-61.97000000000003, -32.47], [-61.81999999999999, -32.82], [-61.47000000000003, -32.97], [-61.31999999999999, -33.32], [-61.25, -33.35], [-61.0, -33.25], [-60.75, -33.35], [-60.5, -33.25], [-60.25, -33.35], [-60.0, -33.25], [-59.75, -33.35], [-59.5, -33.25], [-59.25, -33.35], [-59.0, -33.25], [-58.75, -33.35], [-58.5, -33.25], [-58.25, -33.35], [-58.0, -33.25], [-57.47000000000003, -33.47], [-57.31999999999999, -33.82], [-56.97000000000003, -33.97], [-56.81999999999999, -34.32], [-56.47000000000003, -34.47], [-56.31999999999999, -34.82], [-56.25, -34.85], [-56.0, -34.75], [-55.47000000000003, -34.97], [-55.25, -35.5], [-55.35000000000002, -35.75], [-55.25, -36.0], [-55.35000000000002, -36.25], [-55.25, -36.5], [-55.35000000000002, -36.75], [-55.25, -37.0], [-55.47000000000003, -37.53], [-55.81999999999999, -37.68], [-55.85000000000002, -37.75], [-55.75, -38.0], [-55.85000000000002, -38.25], [-55.75, -38.5], [-55.85000000000002, -38.75], [-55.75, -39.0], [-55.97000000000003, -39.53], [-56.31999999999999, -39.68], [-56.47000000000003, -40.03], [-57.0, -40.25], [-57.25, -40.15], [-57.5, -40.25], [-57.75, -40.15], [-58.0, -40.25], [-58.52999999999997, -40.03], [-58.68000000000001, -39.68], [-59.02999999999997, -39.53], [-59.25, -39.0], [-59.14999999999998, -38.75], [-59.25, -38.5], [-59.04000000000002, -38.0], [-59.25, -37.5], [-59.14999999999998, -37.25], [-59.18000000000001, -37.18], [-59.25, -37.15], [-59.5, -37.25], [-59.75, -37.15], [-60.0, -37.25], [-60.25, -37.15], [-60.5, -37.25], [-60.75, -37.15], [-60.81999999999999, -37.18], [-60.97000000000003, -37.53], [-61.5, -37.75], [-62.02999999999997, -37.53], [-62.25, -37.0], [-62.14999999999998, -36.75], [-62.25, -36.5], [-62.14999999999998, -36.25], [-62.25, -36.0], [-62.14999999999998, -35.75], [-62.18000000000001, -35.68], [-62.52999999999997, -35.53], [-62.75, -35.0], [-62.64999999999998, -34.75], [-62.68000000000001, -34.68], [-63.02999999999997, -34.53], [-63.18000000000001, -34.18], [-63.52999999999997, -34.03], [-63.68000000000001, -33.68], [-64.02999999999997, -33.53], [-64.25, -33.0], [-64.14999999999998, -32.75], [-64.25, -32.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.549078856431208}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.830224547450584}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.93708784245149, 19.305969423304703, 21.03148885436292, 19.210368021927593]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.251986153463065, 21.059308780969843, 22.940808984392277, 21.722409119151337]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.396747653482009, 4.2428453135373765, 6.029431326768191, 4.219142396134513]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.480934402708726, 6.863536811332949, 8.549078856431208, 5.701646720341159]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4130770578453913, 1.5229160799583406, 2.247659895992937, 1.6028981474900308]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.426141327506903, 2.182311133179288, 2.9873533540954496, 2.409321869418593]}}