{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:58:09.476473", "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": "2024-Mar-28_to_2024-Apr-01_309.0_-30.5"}, "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": 2024030002025}, "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": "March 28 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 01 2024"}, "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": 50100.336764895386}, "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": -30.5}, "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": 309.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "309.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 308.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 310.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -32.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -30.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-52.15, -31.25], [-52.25, -31.0], [-52.03, -30.47], [-51.68, -30.32], [-51.53, -29.97], [-51.0, -29.75], [-50.7, -29.88], [-50.53, -29.47], [-50.0, -29.25], [-49.47, -29.47], [-49.25, -30.0], [-49.35, -30.25], [-49.32, -30.32], [-48.97, -30.47], [-48.75, -31.0], [-48.97, -31.53], [-49.32, -31.68], [-49.47, -32.03], [-49.82, -32.18], [-49.97, -32.53], [-50.32, -32.68], [-50.47, -33.03], [-51.0, -33.25], [-51.25, -33.15], [-51.5, -33.25], [-51.75, -33.15], [-52.0, -33.25], [-52.53, -33.03], [-52.75, -32.5], [-52.65, -32.25], [-52.75, -32.0], [-52.53, -31.47], [-52.18, -31.32], [-52.15, -31.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-03-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-50.52999999999997, -30.47], [-50.0, -30.25], [-49.47000000000003, -30.47], [-49.25, -31.0], [-49.47000000000003, -31.53], [-50.0, -31.75], [-50.52999999999997, -31.53], [-50.75, -31.0], [-50.52999999999997, -30.47]]]]}, "2024-03-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-52.75, -32.0], [-52.52999999999997, -31.47], [-52.18000000000001, -31.32], [-52.14999999999998, -31.25], [-52.25, -31.0], [-52.02999999999997, -30.47], [-51.68000000000001, -30.32], [-51.52999999999997, -29.97], [-51.0, -29.75], [-50.69999999999999, -29.88], [-50.52999999999997, -29.47], [-50.0, -29.25], [-49.47000000000003, -29.47], [-49.25, -30.0], [-49.35000000000002, -30.25], [-49.31999999999999, -30.32], [-48.97000000000003, -30.47], [-48.75, -31.0], [-48.97000000000003, -31.53], [-49.31999999999999, -31.68], [-49.47000000000003, -32.03], [-49.81999999999999, -32.18], [-49.97000000000003, -32.53], [-50.31999999999999, -32.68], [-50.47000000000003, -33.03], [-51.0, -33.25], [-51.25, -33.15], [-51.5, -33.25], [-51.75, -33.15], [-52.0, -33.25], [-52.52999999999997, -33.03], [-52.75, -32.5], [-52.64999999999998, -32.25], [-52.75, -32.0]]]]}, "2024-03-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-52.75, -32.0], [-52.52999999999997, -31.47], [-52.18000000000001, -31.32], [-52.14999999999998, -31.25], [-52.25, -31.0], [-52.02999999999997, -30.47], [-51.68000000000001, -30.32], [-51.52999999999997, -29.97], [-51.0, -29.75], [-50.69999999999999, -29.88], [-50.52999999999997, -29.47], [-50.0, -29.25], [-49.47000000000003, -29.47], [-49.25, -30.0], [-49.35000000000002, -30.25], [-49.31999999999999, -30.32], [-48.97000000000003, -30.47], [-48.75, -31.0], [-48.97000000000003, -31.53], [-49.31999999999999, -31.68], [-49.47000000000003, -32.03], [-49.81999999999999, -32.18], [-49.97000000000003, -32.53], [-50.31999999999999, -32.68], [-50.47000000000003, -33.03], [-51.0, -33.25], [-51.25, -33.15], [-51.5, -33.25], [-51.75, -33.15], [-52.0, -33.25], [-52.52999999999997, -33.03], [-52.75, -32.5], [-52.64999999999998, -32.25], [-52.75, -32.0]]]]}, "2024-03-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-52.75, -32.0], [-52.52999999999997, -31.47], [-52.18000000000001, -31.32], [-52.14999999999998, -31.25], [-52.25, -31.0], [-52.02999999999997, -30.47], [-51.68000000000001, -30.32], [-51.52999999999997, -29.97], [-51.0, -29.75], [-50.69999999999999, -29.88], [-50.52999999999997, -29.47], [-50.0, -29.25], [-49.47000000000003, -29.47], [-49.25, -30.0], [-49.35000000000002, -30.25], [-49.31999999999999, -30.32], [-48.97000000000003, -30.47], [-48.75, -31.0], [-48.97000000000003, -31.53], [-49.31999999999999, -31.68], [-49.47000000000003, -32.03], [-49.81999999999999, -32.18], [-49.97000000000003, -32.53], [-50.31999999999999, -32.68], [-50.47000000000003, -33.03], [-51.0, -33.25], [-51.25, -33.15], [-51.5, -33.25], [-51.75, -33.15], [-52.0, -33.25], [-52.52999999999997, -33.03], [-52.75, -32.5], [-52.64999999999998, -32.25], [-52.75, -32.0]]]]}, "2024-04-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-52.25, -31.0], [-52.02999999999997, -30.47], [-51.68000000000001, -30.32], [-51.52999999999997, -29.97], [-51.0, -29.75], [-50.69999999999999, -29.88], [-50.52999999999997, -29.47], [-50.0, -29.25], [-49.47000000000003, -29.47], [-49.25, -30.0], [-49.35000000000002, -30.25], [-49.25, -30.5], [-49.47000000000003, -31.03], [-50.0, -31.25], [-50.30000000000001, -31.12], [-50.47000000000003, -31.53], [-50.81999999999999, -31.68], [-50.97000000000003, -32.03], [-51.5, -32.25], [-52.02999999999997, -32.03], [-52.25, -31.5], [-52.14999999999998, -31.25], [-52.25, -31.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.5402017471017757}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.8284431801181533}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.188496594081812, 24.112162234298125, 24.1678906938223, 24.253765888736268, 24.300737165876797]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.188496594081812, 24.86596499700397, 24.663242407177222, 25.101587150706848, 24.777693268265182]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.400923553467237, 1.742177881547757, 1.7964848786025502, 1.952255781740363, 1.8819979463619727]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.400923553467237, 2.390325753146726, 2.231433128804383, 2.5402017471017757, 2.2735411031859485]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.1348764142931262, 1.3272300759085223, 1.3340885587088913, 1.404169516243707, 1.320395068709445]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.1348764142931262, 1.576675114851037, 1.5606065634489397, 1.7183085384608616, 1.5634245620280545]}}