{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:35:06.644385", "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-26_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": 2023040002570}, "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 26 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": 5}, "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": 472741.81115361257}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.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": ["Rio de La Plata", "South 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": 290.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 304.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -39.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -30.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-04-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.03, -36.53], [-62.25, -36.0], [-62.03, -35.47], [-61.5, -35.25], [-60.97, -35.47], [-60.75, -36.0], [-60.97, -36.53], [-61.5, -36.75], [-62.03, -36.53]]], [[[-65.53, -36.03], [-65.75, -35.5], [-65.53, -34.97], [-65.0, -34.75], [-64.47, -34.97], [-64.25, -35.5], [-64.47, -36.03], [-65.0, -36.25], [-65.53, -36.03]]]]}, "2023-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.65, -38.25], [-69.75, -38.0], [-69.65, -37.75], [-69.75, -37.5], [-69.65, -37.25], [-69.75, -37.0], [-69.65, -36.75], [-69.75, -36.5], [-69.53, -35.97], [-69.18, -35.82], [-69.15, -35.75], [-69.25, -35.5], [-69.03, -34.97], [-68.5, -34.75], [-68.75, -34.65], [-69.0, -34.75], [-69.53, -34.53], [-69.75, -34.0], [-69.53, -33.47], [-69.18, -33.32], [-69.03, -32.97], [-68.5, -32.75], [-68.25, -32.85], [-68.0, -32.75], [-67.7, -32.88], [-67.53, -32.47], [-67.0, -32.25], [-66.75, -32.35], [-66.5, -32.25], [-65.97, -32.47], [-65.82, -32.82], [-65.75, -32.85], [-65.5, -32.75], [-65.25, -32.85], [-65.0, -32.75], [-64.47, -32.97], [-64.25, -33.5], [-64.35, -33.75], [-64.32, -33.82], [-63.97, -33.97], [-63.75, -34.5], [-63.85, -34.75], [-63.82, -34.82], [-63.75, -34.85], [-63.5, -34.75], [-63.25, -34.85], [-63.0, -34.75], [-62.7, -34.88], [-62.53, -34.47], [-62.0, -34.25], [-61.47, -34.47], [-61.32, -34.82], [-60.97, -34.97], [-60.75, -35.5], [-60.85, -35.75], [-60.75, -36.0], [-60.97, -36.53], [-61.5, -36.75], [-61.75, -36.65], [-62.0, -36.75], [-62.25, -36.65], [-62.5, -36.75], [-62.75, -36.65], [-63.0, -36.75], [-63.53, -36.53], [-63.68, -36.18], [-63.75, -36.15], [-63.82, -36.18], [-63.85, -36.25], [-63.75, -36.5], [-63.97, -37.03], [-64.32, -37.18], [-64.35, -37.25], [-64.25, -37.5], [-64.47, -38.03], [-65.0, -38.25], [-65.25, -38.15], [-65.5, -38.25], [-65.75, -38.15], [-66.0, -38.25], [-66.25, -38.15], [-66.5, -38.25], [-67.03, -38.03], [-67.18, -37.68], [-67.25, -37.65], [-67.37, -37.7], [-67.25, -38.0], [-67.47, -38.53], [-67.82, -38.68], [-67.97, -39.03], [-68.32, -39.18], [-68.47, -39.53], [-69.0, -39.75], [-69.53, -39.53], [-69.75, -39.0], [-69.65, -38.75], [-69.75, -38.5], [-69.65, -38.25]], [[-68.25, -34.85], [-68.12, -34.8], [-68.2, -34.62], [-68.5, -34.75], [-68.25, -34.85]]]]}, "2023-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.65, -38.25], [-69.75, -38.0], [-69.65, -37.75], [-69.75, -37.5], [-69.65, -37.25], [-69.75, -37.0], [-69.65, -36.75], [-69.75, -36.5], [-69.53, -35.97], [-69.18, -35.82], [-69.15, -35.75], [-69.25, -35.5], [-69.03, -34.97], [-68.5, -34.75], [-68.75, -34.65], [-69.0, -34.75], [-69.53, -34.53], [-69.75, -34.0], [-69.53, -33.47], [-69.18, -33.32], [-69.03, -32.97], [-68.5, -32.75], [-68.25, -32.85], [-68.0, -32.75], [-67.7, -32.88], [-67.53, -32.47], [-67.0, -32.25], [-66.75, -32.35], [-66.5, -32.25], [-65.97, -32.47], [-65.82, -32.82], [-65.75, -32.85], [-65.5, -32.75], [-65.25, -32.85], [-65.0, -32.75], [-64.47, -32.97], [-64.25, -33.5], [-64.35, -33.75], [-64.32, -33.82], [-63.97, -33.97], [-63.75, -34.5], [-63.85, -34.75], [-63.82, -34.82], [-63.75, -34.85], [-63.5, -34.75], [-63.25, -34.85], [-63.0, -34.75], [-62.7, -34.88], [-62.65, -34.75], [-62.75, -34.5], [-62.65, -34.25], [-62.68, -34.18], [-63.03, -34.03], [-63.18, -33.68], [-63.53, -33.53], [-63.68, -33.18], [-64.03, -33.03], [-64.18, -32.68], [-64.53, -32.53], [-64.68, -32.18], [-65.03, -32.03], [-65.25, -31.5], [-65.15, -31.25], [-65.25, -31.0], [-65.03, -30.47], [-64.68, -30.32], [-64.53, -29.97], [-64.0, -29.75], [-63.47, -29.97], [-63.25, -30.5], [-63.35, -30.75], [-63.25, -31.0], [-63.35, -31.25], [-63.32, -31.32], [-62.97, -31.47], [-62.82, -31.82], [-62.47, -31.97], [-62.32, -32.32], [-62.25, -32.35], [-62.0, -32.25], [-61.47, -32.47], [-61.32, -32.82], [-61.0, -32.96], [-60.5, -32.75], [-60.25, -32.85], [-60.0, -32.75], [-59.47, -32.97], [-59.32, -33.32], [-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], [-57.25, -33.85], [-57.0, -33.75], [-56.47, -33.97], [-56.32, -34.32], [-56.25, -34.35], [-56.0, -34.25], [-55.47, -34.47], [-55.25, -35.0], [-55.35, -35.25], [-55.25, -35.5], [-55.35, -35.75], [-55.25, -36.0], [-55.35, -36.25], [-55.25, -36.5], [-55.47, -37.03], [-55.82, -37.18], [-55.85, -37.25], [-55.75, -37.5], [-55.85, -37.75], [-55.75, -38.0], [-55.97, -38.53], [-56.32, -38.68], [-56.35, -38.75], [-56.25, -39.0], [-56.35, -39.25], [-56.25, -39.5], [-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], [-59.03, -37.97], [-58.5, -37.75], [-59.03, -37.53], [-59.18, -37.18], [-59.53, -37.03], [-59.68, -36.68], [-59.75, -36.65], [-60.0, -36.75], [-60.25, -36.65], [-60.5, -36.75], [-60.75, -36.65], [-61.0, -36.75], [-61.25, -36.65], [-61.5, -36.75], [-61.75, -36.65], [-62.0, -36.75], [-62.25, -36.65], [-62.5, -36.75], [-62.75, -36.65], [-63.0, -36.75], [-63.53, -36.53], [-63.68, -36.18], [-63.75, -36.15], [-63.82, -36.18], [-63.85, -36.25], [-63.75, -36.5], [-63.97, -37.03], [-64.32, -37.18], [-64.35, -37.25], [-64.25, -37.5], [-64.47, -38.03], [-65.0, -38.25], [-65.25, -38.15], [-65.5, -38.25], [-65.75, -38.15], [-66.0, -38.25], [-66.25, -38.15], [-66.5, -38.25], [-67.03, -38.03], [-67.18, -37.68], [-67.25, -37.65], [-67.37, -37.7], [-67.25, -38.0], [-67.47, -38.53], [-67.82, -38.68], [-67.97, -39.03], [-68.32, -39.18], [-68.47, -39.53], [-69.0, -39.75], [-69.53, -39.53], [-69.75, -39.0], [-69.65, -38.75], [-69.75, -38.5], [-69.65, -38.25]], [[-68.25, -34.85], [-68.12, -34.8], [-68.2, -34.62], [-68.5, -34.75], [-68.25, -34.85]], [[-58.25, -37.85], [-58.18, -37.82], [-58.15, -37.75], [-58.18, -37.68], [-58.25, -37.65], [-58.5, -37.75], [-58.25, -37.85]]]]}, "2023-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.65, -38.25], [-69.75, -38.0], [-69.65, -37.75], [-69.75, -37.5], [-69.65, -37.25], [-69.75, -37.0], [-69.65, -36.75], [-69.75, -36.5], [-69.53, -35.97], [-69.18, -35.82], [-69.15, -35.75], [-69.25, -35.5], [-69.03, -34.97], [-68.5, -34.75], [-68.75, -34.65], [-69.0, -34.75], [-69.53, -34.53], [-69.75, -34.0], [-69.53, -33.47], [-69.18, -33.32], [-69.03, -32.97], [-68.5, -32.75], [-68.25, -32.85], [-68.0, -32.75], [-67.7, -32.88], [-67.53, -32.47], [-67.0, -32.25], [-66.75, -32.35], [-66.5, -32.25], [-65.97, -32.47], [-65.82, -32.82], [-65.75, -32.85], [-65.5, -32.75], [-65.25, -32.85], [-65.0, -32.75], [-64.47, -32.97], [-64.25, -33.5], [-64.35, -33.75], [-64.32, -33.82], [-63.97, -33.97], [-63.75, -34.5], [-63.85, -34.75], [-63.82, -34.82], [-63.75, -34.85], [-63.5, -34.75], [-63.25, -34.85], [-63.0, -34.75], [-62.7, -34.88], [-62.65, -34.75], [-62.75, -34.5], [-62.65, -34.25], [-62.68, -34.18], [-63.03, -34.03], [-63.18, -33.68], [-63.53, -33.53], [-63.68, -33.18], [-64.03, -33.03], [-64.18, -32.68], [-64.53, -32.53], [-64.68, -32.18], [-65.03, -32.03], [-65.25, -31.5], [-65.15, -31.25], [-65.25, -31.0], [-65.03, -30.47], [-64.68, -30.32], [-64.53, -29.97], [-64.0, -29.75], [-63.47, -29.97], [-63.25, -30.5], [-63.35, -30.75], [-63.25, -31.0], [-63.35, -31.25], [-63.32, -31.32], [-62.97, -31.47], [-62.82, -31.82], [-62.47, -31.97], [-62.32, -32.32], [-62.25, -32.35], [-62.0, -32.25], [-61.47, -32.47], [-61.32, -32.82], [-61.0, -32.96], [-60.5, -32.75], [-60.25, -32.85], [-60.0, -32.75], [-59.47, -32.97], [-59.32, -33.32], [-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], [-57.25, -33.85], [-57.0, -33.75], [-56.47, -33.97], [-56.32, -34.32], [-56.25, -34.35], [-56.0, -34.25], [-55.47, -34.47], [-55.25, -35.0], [-55.35, -35.25], [-55.25, -35.5], [-55.35, -35.75], [-55.25, -36.0], [-55.35, -36.25], [-55.25, -36.5], [-55.47, -37.03], [-55.82, -37.18], [-55.85, -37.25], [-55.75, -37.5], [-55.85, -37.75], [-55.75, -38.0], [-55.97, -38.53], [-56.32, -38.68], [-56.35, -38.75], [-56.25, -39.0], [-56.35, -39.25], [-56.25, -39.5], [-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], [-59.03, -37.97], [-58.5, -37.75], [-59.03, -37.53], [-59.18, -37.18], [-59.53, -37.03], [-59.68, -36.68], [-59.75, -36.65], [-60.0, -36.75], [-60.25, -36.65], [-60.5, -36.75], [-60.75, -36.65], [-61.0, -36.75], [-61.25, -36.65], [-61.5, -36.75], [-61.75, -36.65], [-62.0, -36.75], [-62.25, -36.65], [-62.5, -36.75], [-62.75, -36.65], [-63.0, -36.75], [-63.53, -36.53], [-63.68, -36.18], [-63.75, -36.15], [-63.82, -36.18], [-63.85, -36.25], [-63.75, -36.5], [-63.97, -37.03], [-64.32, -37.18], [-64.35, -37.25], [-64.25, -37.5], [-64.47, -38.03], [-65.0, -38.25], [-65.25, -38.15], [-65.5, -38.25], [-65.75, -38.15], [-66.0, -38.25], [-66.25, -38.15], [-66.5, -38.25], [-67.03, -38.03], [-67.18, -37.68], [-67.25, -37.65], [-67.37, -37.7], [-67.25, -38.0], [-67.47, -38.53], [-67.82, -38.68], [-67.97, -39.03], [-68.32, -39.18], [-68.47, -39.53], [-69.0, -39.75], [-69.53, -39.53], [-69.75, -39.0], [-69.65, -38.75], [-69.75, -38.5], [-69.65, -38.25]], [[-68.25, -34.85], [-68.12, -34.8], [-68.2, -34.62], [-68.5, -34.75], [-68.25, -34.85]], [[-58.25, -37.85], [-58.18, -37.82], [-58.15, -37.75], [-58.18, -37.68], [-58.25, -37.65], [-58.5, -37.75], [-58.25, -37.85]]]]}, "2023-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.03, -30.47], [-64.68, -30.32], [-64.53, -29.97], [-64.0, -29.75], [-63.47, -29.97], [-63.25, -30.5], [-63.35, -30.75], [-63.25, -31.0], [-63.35, -31.25], [-63.32, -31.32], [-62.97, -31.47], [-62.82, -31.82], [-62.47, -31.97], [-62.32, -32.32], [-62.25, -32.35], [-62.0, -32.25], [-61.47, -32.47], [-61.32, -32.82], [-61.0, -32.96], [-60.5, -32.75], [-60.25, -32.85], [-60.0, -32.75], [-59.47, -32.97], [-59.32, -33.32], [-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], [-57.25, -33.85], [-57.0, -33.75], [-56.47, -33.97], [-56.32, -34.32], [-56.25, -34.35], [-56.0, -34.25], [-55.47, -34.47], [-55.25, -35.0], [-55.35, -35.25], [-55.25, -35.5], [-55.35, -35.75], [-55.25, -36.0], [-55.35, -36.25], [-55.25, -36.5], [-55.47, -37.03], [-55.82, -37.18], [-55.85, -37.25], [-55.75, -37.5], [-55.85, -37.75], [-55.75, -38.0], [-55.97, -38.53], [-56.32, -38.68], [-56.35, -38.75], [-56.25, -39.0], [-56.35, -39.25], [-56.25, -39.5], [-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], [-59.03, -37.97], [-58.5, -37.75], [-59.03, -37.53], [-59.18, -37.18], [-59.53, -37.03], [-59.68, -36.68], [-59.75, -36.65], [-60.0, -36.75], [-60.25, -36.65], [-60.5, -36.75], [-60.75, -36.65], [-61.0, -36.75], [-61.53, -36.53], [-61.68, -36.18], [-62.03, -36.03], [-62.25, -35.5], [-62.15, -35.25], [-62.18, -35.18], [-62.53, -35.03], [-62.75, -34.5], [-62.65, -34.25], [-62.68, -34.18], [-63.03, -34.03], [-63.18, -33.68], [-63.53, -33.53], [-63.68, -33.18], [-64.03, -33.03], [-64.18, -32.68], [-64.53, -32.53], [-64.68, -32.18], [-65.03, -32.03], [-65.25, -31.5], [-65.15, -31.25], [-65.25, -31.0], [-65.03, -30.47]], [[-58.25, -37.85], [-58.18, -37.82], [-58.15, -37.75], [-58.18, -37.68], [-58.25, -37.65], [-58.5, -37.75], [-58.25, -37.85]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.706359701570477}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.434591455713834}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.80887467983888, 19.04885080148898, 19.739521887330284, 21.021786602813734, 19.678820771942526]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.1057693214143, 21.73664000598211, 22.683841934624468, 24.25830891129408, 22.17853484938496]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.170011215217329, 4.9883175551897905, 5.089529421685417, 6.457992218657787, 4.585815046713691]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.292994223010851, 6.931184774339727, 7.757453028029602, 8.706359701570477, 6.620566999100902]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3339473767860943, 1.5083458290145961, 1.695043690834116, 2.1842865178786686, 1.710685349754117]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.354692556429472, 1.9777815623748325, 2.24570575653556, 3.001189016562074, 2.6728879067701174]}}