{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:52:56.581310", "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-23_to_2023-Apr-25_292.0_-46.0"}, "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": 2023040002556}, "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 23 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 25 2023"}, "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": 129154.69146258628}, "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": ["Argentine Sea", "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": -46.0}, "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": 292.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "292.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 290.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 297.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -47.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -44.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-70.25, -45.5], [-70.15, -45.25], [-70.25, -45.0], [-70.15, -44.75], [-70.25, -44.5], [-70.03, -43.97], [-69.5, -43.75], [-69.25, -43.85], [-69.0, -43.75], [-68.75, -43.85], [-68.5, -43.75], [-68.25, -43.85], [-68.0, -43.75], [-67.47, -43.97], [-67.32, -44.32], [-67.25, -44.35], [-67.0, -44.25], [-66.47, -44.47], [-66.32, -44.82], [-66.25, -44.85], [-66.18, -44.82], [-66.03, -44.47], [-65.5, -44.25], [-64.97, -44.47], [-64.82, -44.82], [-64.75, -44.85], [-64.68, -44.82], [-64.53, -44.47], [-64.0, -44.25], [-63.75, -44.35], [-63.5, -44.25], [-62.97, -44.47], [-62.75, -45.0], [-62.85, -45.25], [-62.82, -45.32], [-62.75, -45.35], [-62.5, -45.25], [-61.97, -45.47], [-61.75, -46.0], [-61.85, -46.25], [-61.75, -46.5], [-61.97, -47.03], [-62.5, -47.25], [-62.75, -47.15], [-62.82, -47.18], [-62.97, -47.53], [-63.5, -47.75], [-63.75, -47.65], [-64.0, -47.75], [-64.25, -47.65], [-64.5, -47.75], [-65.03, -47.53], [-65.18, -47.18], [-65.25, -47.15], [-65.5, -47.25], [-65.75, -47.15], [-65.82, -47.18], [-65.97, -47.53], [-66.5, -47.75], [-66.75, -47.65], [-67.0, -47.75], [-67.53, -47.53], [-67.68, -47.18], [-67.75, -47.15], [-68.0, -47.25], [-68.25, -47.15], [-68.5, -47.25], [-68.75, -47.15], [-69.0, -47.25], [-69.25, -47.15], [-69.5, -47.25], [-70.03, -47.03], [-70.25, -46.5], [-70.15, -46.25], [-70.25, -46.0], [-70.15, -45.75], [-70.25, -45.5]]]]}}, "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": {"2023-04-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.25, -46.0], [-70.14999999999998, -45.75], [-70.25, -45.5], [-70.14999999999998, -45.25], [-70.25, -45.0], [-70.14999999999998, -44.75], [-70.25, -44.5], [-70.02999999999997, -43.97], [-69.5, -43.75], [-69.25, -43.85], [-69.0, -43.75], [-68.75, -43.85], [-68.5, -43.75], [-68.25, -43.85], [-68.0, -43.75], [-67.47000000000003, -43.97], [-67.32, -44.32], [-67.25, -44.35], [-67.0, -44.25], [-66.47000000000003, -44.47], [-66.32, -44.82], [-66.25, -44.85], [-66.18, -44.82], [-66.02999999999997, -44.47], [-65.5, -44.25], [-64.97000000000003, -44.47], [-64.82, -44.82], [-64.75, -44.85], [-64.68, -44.82], [-64.52999999999997, -44.47], [-64.0, -44.25], [-63.75, -44.35], [-63.5, -44.25], [-62.97000000000003, -44.47], [-62.75, -45.0], [-62.85000000000002, -45.25], [-62.81999999999999, -45.32], [-62.75, -45.35], [-62.5, -45.25], [-61.97000000000003, -45.47], [-61.75, -46.0], [-61.85000000000002, -46.25], [-61.75, -46.5], [-61.97000000000003, -47.03], [-62.5, -47.25], [-62.75, -47.15], [-62.81999999999999, -47.18], [-62.97000000000003, -47.53], [-63.5, -47.75], [-63.75, -47.65], [-64.0, -47.75], [-64.25, -47.65], [-64.5, -47.75], [-65.02999999999997, -47.53], [-65.18, -47.18], [-65.25, -47.15], [-65.5, -47.25], [-65.75, -47.15], [-65.82, -47.18], [-65.97000000000003, -47.53], [-66.5, -47.75], [-66.75, -47.65], [-67.0, -47.75], [-67.52999999999997, -47.53], [-67.68, -47.18], [-67.75, -47.15], [-68.0, -47.25], [-68.25, -47.15], [-68.5, -47.25], [-68.75, -47.15], [-69.0, -47.25], [-69.25, -47.15], [-69.5, -47.25], [-70.02999999999997, -47.03], [-70.25, -46.5], [-70.14999999999998, -46.25], [-70.25, -46.0]]]]}, "2023-04-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.25, -46.0], [-70.14999999999998, -45.75], [-70.25, -45.5], [-70.14999999999998, -45.25], [-70.25, -45.0], [-70.14999999999998, -44.75], [-70.25, -44.5], [-70.02999999999997, -43.97], [-69.5, -43.75], [-69.25, -43.85], [-69.0, -43.75], [-68.75, -43.85], [-68.5, -43.75], [-68.25, -43.85], [-68.0, -43.75], [-67.47000000000003, -43.97], [-67.32, -44.32], [-67.25, -44.35], [-67.0, -44.25], [-66.47000000000003, -44.47], [-66.32, -44.82], [-66.25, -44.85], [-66.18, -44.82], [-66.02999999999997, -44.47], [-65.5, -44.25], [-64.97000000000003, -44.47], [-64.82, -44.82], [-64.75, -44.85], [-64.68, -44.82], [-64.52999999999997, -44.47], [-64.0, -44.25], [-63.75, -44.35], [-63.5, -44.25], [-62.97000000000003, -44.47], [-62.75, -45.0], [-62.85000000000002, -45.25], [-62.81999999999999, -45.32], [-62.75, -45.35], [-62.5, -45.25], [-61.97000000000003, -45.47], [-61.75, -46.0], [-61.85000000000002, -46.25], [-61.75, -46.5], [-61.97000000000003, -47.03], [-62.5, -47.25], [-62.75, -47.15], [-62.81999999999999, -47.18], [-62.97000000000003, -47.53], [-63.5, -47.75], [-63.75, -47.65], [-64.0, -47.75], [-64.25, -47.65], [-64.5, -47.75], [-65.02999999999997, -47.53], [-65.18, -47.18], [-65.25, -47.15], [-65.5, -47.25], [-65.75, -47.15], [-65.82, -47.18], [-65.97000000000003, -47.53], [-66.5, -47.75], [-66.75, -47.65], [-67.0, -47.75], [-67.52999999999997, -47.53], [-67.68, -47.18], [-67.75, -47.15], [-68.0, -47.25], [-68.25, -47.15], [-68.5, -47.25], [-68.75, -47.15], [-69.0, -47.25], [-69.25, -47.15], [-69.5, -47.25], [-70.02999999999997, -47.03], [-70.25, -46.5], [-70.14999999999998, -46.25], [-70.25, -46.0]]]]}, "2023-04-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.25, -46.0], [-70.14999999999998, -45.75], [-70.25, -45.5], [-70.14999999999998, -45.25], [-70.25, -45.0], [-70.14999999999998, -44.75], [-70.25, -44.5], [-70.02999999999997, -43.97], [-69.5, -43.75], [-69.25, -43.85], [-69.0, -43.75], [-68.75, -43.85], [-68.5, -43.75], [-68.25, -43.85], [-68.0, -43.75], [-67.47000000000003, -43.97], [-67.32, -44.32], [-67.25, -44.35], [-67.0, -44.25], [-66.47000000000003, -44.47], [-66.32, -44.82], [-66.25, -44.85], [-66.18, -44.82], [-66.02999999999997, -44.47], [-65.5, -44.25], [-64.97000000000003, -44.47], [-64.82, -44.82], [-64.75, -44.85], [-64.68, -44.82], [-64.52999999999997, -44.47], [-64.0, -44.25], [-63.75, -44.35], [-63.5, -44.25], [-62.97000000000003, -44.47], [-62.75, -45.0], [-62.85000000000002, -45.25], [-62.81999999999999, -45.32], [-62.75, -45.35], [-62.5, -45.25], [-61.97000000000003, -45.47], [-61.75, -46.0], [-61.85000000000002, -46.25], [-61.75, -46.5], [-61.97000000000003, -47.03], [-62.5, -47.25], [-62.75, -47.15], [-62.81999999999999, -47.18], [-62.97000000000003, -47.53], [-63.5, -47.75], [-63.75, -47.65], [-64.0, -47.75], [-64.25, -47.65], [-64.5, -47.75], [-65.02999999999997, -47.53], [-65.18, -47.18], [-65.25, -47.15], [-65.5, -47.25], [-65.75, -47.15], [-65.82, -47.18], [-65.97000000000003, -47.53], [-66.5, -47.75], [-66.75, -47.65], [-67.0, -47.75], [-67.52999999999997, -47.53], [-67.68, -47.18], [-67.75, -47.15], [-68.0, -47.25], [-68.25, -47.15], [-68.5, -47.25], [-68.75, -47.15], [-69.0, -47.25], [-69.25, -47.15], [-69.5, -47.25], [-70.02999999999997, -47.03], [-70.25, -46.5], [-70.14999999999998, -46.25], [-70.25, -46.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.5264213369496815}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.170979613188374}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.414041331499334, 14.398356633000049, 13.870280128831496]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.470843202775654, 16.24484492227674, 15.405075128932026]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.309581528382291, 3.3528746296986895, 2.8504826814841464]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.603332028219427, 6.5264213369496815, 4.765485066800636]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5167319430911017, 1.5368802508472146, 1.3263803962153051]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8708141137956933, 2.1786976644081104, 1.6432405534859604]}}