{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:52:37.535194", "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-06_to_2023-Apr-09_310.5_1.0"}, "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": 2023040001526}, "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 06 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 09 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": 64887.33325927745}, "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": 1.0}, "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": 310.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "310.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 309.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 312.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 0.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 2.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-50.68, 1.18], [-50.65, 1.25], [-50.68, 1.32], [-51.03, 1.47], [-51.25, 2.0], [-51.15, 2.25], [-51.25, 2.5], [-51.03, 3.03], [-50.5, 3.25], [-50.25, 3.15], [-50.0, 3.25], [-49.75, 3.15], [-49.5, 3.25], [-48.97, 3.03], [-48.8, 2.62], [-48.5, 2.75], [-47.97, 2.53], [-47.82, 2.18], [-47.75, 2.15], [-47.5, 2.25], [-46.97, 2.03], [-46.75, 1.5], [-46.97, 0.97], [-47.32, 0.82], [-47.47, 0.47], [-48.0, 0.25], [-48.25, 0.35], [-48.5, 0.25], [-48.75, 0.35], [-49.0, 0.25], [-49.25, 0.35], [-49.32, 0.32], [-49.35, 0.25], [-49.25, 0.0], [-49.47, -0.53], [-50.0, -0.75], [-50.53, -0.53], [-50.68, -0.18], [-51.03, -0.03], [-51.25, 0.5], [-51.03, 1.03], [-50.68, 1.18]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America", "N.E.South-America", "Equatorial.Atlantic-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-04-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.25, 2.5], [-51.02999999999997, 3.03], [-50.5, 3.25], [-50.25, 3.15], [-50.0, 3.25], [-49.75, 3.15], [-49.5, 3.25], [-48.97000000000003, 3.03], [-48.80000000000001, 2.62], [-48.5, 2.75], [-47.97000000000003, 2.53], [-47.81999999999999, 2.18], [-47.75, 2.15], [-47.5, 2.25], [-46.97000000000003, 2.03], [-46.75, 1.5], [-46.97000000000003, 0.97], [-47.31999999999999, 0.82], [-47.47000000000003, 0.47], [-48.0, 0.25], [-48.25, 0.35], [-48.5, 0.25], [-48.75, 0.35], [-49.0, 0.25], [-49.25, 0.35], [-49.31999999999999, 0.32], [-49.47000000000003, -0.03], [-50.0, -0.25], [-50.52999999999997, -0.03], [-50.75, 0.5], [-50.64999999999998, 0.75], [-50.75, 1.0], [-50.64999999999998, 1.25], [-50.68000000000001, 1.32], [-51.02999999999997, 1.47], [-51.25, 2.0], [-51.14999999999998, 2.25], [-51.25, 2.5]]]]}, "2023-04-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.25, 2.5], [-51.02999999999997, 3.03], [-50.5, 3.25], [-50.25, 3.15], [-50.0, 3.25], [-49.75, 3.15], [-49.5, 3.25], [-48.97000000000003, 3.03], [-48.80000000000001, 2.62], [-48.5, 2.75], [-47.97000000000003, 2.53], [-47.81999999999999, 2.18], [-47.75, 2.15], [-47.5, 2.25], [-46.97000000000003, 2.03], [-46.75, 1.5], [-46.97000000000003, 0.97], [-47.31999999999999, 0.82], [-47.47000000000003, 0.47], [-48.0, 0.25], [-48.25, 0.35], [-48.5, 0.25], [-48.75, 0.35], [-49.0, 0.25], [-49.25, 0.35], [-49.31999999999999, 0.32], [-49.35000000000002, 0.25], [-49.25, 0.0], [-49.47000000000003, -0.53], [-50.0, -0.75], [-50.52999999999997, -0.53], [-50.68000000000001, -0.18], [-51.02999999999997, -0.03], [-51.25, 0.5], [-51.02999999999997, 1.03], [-50.68000000000001, 1.18], [-50.64999999999998, 1.25], [-50.68000000000001, 1.32], [-51.02999999999997, 1.47], [-51.25, 2.0], [-51.14999999999998, 2.25], [-51.25, 2.5]]]]}, "2023-04-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.25, 2.5], [-51.02999999999997, 3.03], [-50.5, 3.25], [-50.25, 3.15], [-50.0, 3.25], [-49.75, 3.15], [-49.5, 3.25], [-48.97000000000003, 3.03], [-48.80000000000001, 2.62], [-48.5, 2.75], [-47.97000000000003, 2.53], [-47.81999999999999, 2.18], [-47.75, 2.15], [-47.5, 2.25], [-46.97000000000003, 2.03], [-46.75, 1.5], [-46.97000000000003, 0.97], [-47.31999999999999, 0.82], [-47.47000000000003, 0.47], [-48.0, 0.25], [-48.25, 0.35], [-48.5, 0.25], [-48.75, 0.35], [-49.0, 0.25], [-49.25, 0.35], [-49.31999999999999, 0.32], [-49.35000000000002, 0.25], [-49.25, 0.0], [-49.47000000000003, -0.53], [-50.0, -0.75], [-50.52999999999997, -0.53], [-50.68000000000001, -0.18], [-51.02999999999997, -0.03], [-51.25, 0.5], [-51.02999999999997, 1.03], [-50.68000000000001, 1.18], [-50.64999999999998, 1.25], [-50.68000000000001, 1.32], [-51.02999999999997, 1.47], [-51.25, 2.0], [-51.14999999999998, 2.25], [-51.25, 2.5]]]]}, "2023-04-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.02999999999997, -0.03], [-51.25, 0.5], [-51.02999999999997, 1.03], [-50.5, 1.25], [-49.97000000000003, 1.03], [-49.81999999999999, 0.68], [-49.47000000000003, 0.53], [-49.25, 0.0], [-49.47000000000003, -0.53], [-50.0, -0.75], [-50.52999999999997, -0.53], [-50.68000000000001, -0.18], [-51.02999999999997, -0.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.4185158295620681}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.9636604405762855}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.036102733174573, 27.13898028983857, 27.216897291975613, 27.0115799696394]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.453622283372113, 27.377822533827896, 27.39566644374014, 27.156764509379116]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.8752905777832295, 0.9678947208829717, 1.0386449199025567, 0.9713771609642663]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.4185158295620681, 1.3439136316010831, 1.215499137330255, 1.051208473894917]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5452329072078141, 1.6706464824456282, 1.851411677028256, 1.3962608386912512]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9527489929863462, 1.886840530773619, 2.26525991090308, 1.452490228405197]}}