{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:23:17.460737", "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": "2022-Sep-19_to_2022-Sep-23_294.5_-5.0"}, "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": 2022090002322}, "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": "September 19 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 23 2022"}, "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": 120261.45928855002}, "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": []}, "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": -5.0}, "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": 294.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "294.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 291.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 296.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -5.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -2.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-66.0, -2.96], [-65.5, -2.75], [-64.97, -2.97], [-64.8, -3.38], [-64.5, -3.25], [-64.25, -3.35], [-64.0, -3.25], [-63.47, -3.47], [-63.25, -4.0], [-63.35, -4.25], [-63.25, -4.5], [-63.47, -5.03], [-63.82, -5.18], [-63.97, -5.53], [-64.32, -5.68], [-64.47, -6.03], [-65.0, -6.25], [-65.25, -6.15], [-65.5, -6.25], [-65.75, -6.15], [-66.0, -6.25], [-66.53, -6.03], [-66.75, -5.5], [-66.62, -5.2], [-66.75, -5.15], [-67.0, -5.25], [-67.25, -5.15], [-67.5, -5.25], [-67.75, -5.15], [-68.0, -5.25], [-68.53, -5.03], [-68.68, -4.68], [-68.75, -4.65], [-69.0, -4.75], [-69.53, -4.53], [-69.75, -4.0], [-69.65, -3.75], [-69.75, -3.5], [-69.54, -3.0], [-69.75, -2.5], [-69.53, -1.97], [-69.0, -1.75], [-68.75, -1.85], [-68.68, -1.82], [-68.53, -1.47], [-68.0, -1.25], [-67.75, -1.35], [-67.5, -1.25], [-66.97, -1.47], [-66.75, -2.0], [-66.85, -2.25], [-66.82, -2.32], [-66.47, -2.47], [-66.32, -2.82], [-66.0, -2.96]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-09-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.0, -4.75], [-69.52999999999997, -4.53], [-69.75, -4.0], [-69.52999999999997, -3.47], [-69.0, -3.25], [-68.75, -3.35], [-68.5, -3.25], [-67.97000000000003, -3.47], [-67.82, -3.82], [-67.47000000000003, -3.97], [-67.25, -4.5], [-67.47000000000003, -5.03], [-68.0, -5.25], [-68.52999999999997, -5.03], [-68.68, -4.68], [-68.75, -4.65], [-69.0, -4.75]]]]}, "2022-09-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.75, -3.5], [-69.54000000000002, -3.0], [-69.75, -2.5], [-69.52999999999997, -1.97], [-69.0, -1.75], [-68.75, -1.85], [-68.68, -1.82], [-68.52999999999997, -1.47], [-68.0, -1.25], [-67.75, -1.35], [-67.5, -1.25], [-66.97000000000003, -1.47], [-66.75, -2.0], [-66.85000000000002, -2.25], [-66.82, -2.32], [-66.47000000000003, -2.47], [-66.32, -2.82], [-66.0, -2.96], [-65.5, -2.75], [-64.97000000000003, -2.97], [-64.80000000000001, 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"Maximum t2m anomaly recorded over entire duration", "value": 3.7117630659026872}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.0775685799093604}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.36552164999887, 28.09899727880304, 28.607272503534602, 28.968992634718234, 28.555061027980628]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.532800199754718, 29.109589692595648, 30.396839775690182, 30.550754549342855, 28.926525012208856]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3640508440187205, 1.7032712338410498, 2.137112727324479, 2.4974320250769777, 1.8183414963028086]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.4122420306689492, 2.279153468512959, 3.5086184483841407, 3.7117630659026872, 2.108189900020193]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4063017415733967, 1.6362779403888814, 2.0317286444298435, 2.4073850474493494, 1.5909029320851071]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.444911655433032, 2.283560177740069, 2.718930123499561, 3.0974477239363645, 1.82093299999503]}}