{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:19:39.335682", "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-Apr-13_to_2022-Apr-18_323.5_-8.5"}, "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": 2022040001834}, "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 13 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 18 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 152348.26467786264}, "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": -8.5}, "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": 323.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "323.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 321.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 326.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -11.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -7.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-39.03, -9.47], [-38.68, -9.32], [-38.53, -8.97], [-38.0, -8.75], [-37.75, -8.85], [-37.68, -8.82], [-37.65, -8.75], [-37.75, -8.5], [-37.53, -7.97], [-37.18, -7.82], [-37.04, -7.5], [-37.25, -7.0], [-37.03, -6.47], [-36.5, -6.25], [-36.25, -6.35], [-36.0, -6.25], [-35.47, -6.47], [-35.25, -7.0], [-35.35, -7.25], [-35.25, -7.5], [-35.46, -8.0], [-35.41, -8.11], [-35.32, -8.32], [-35.25, -8.35], [-35.18, -8.32], [-35.03, -7.97], [-34.5, -7.75], [-33.97, -7.97], [-33.82, -8.32], [-33.75, -8.35], [-33.5, -8.25], [-32.97, -8.47], [-32.75, -9.0], [-32.97, -9.53], [-33.32, -9.68], [-33.35, -9.75], [-33.25, -10.0], [-33.47, -10.53], [-33.82, -10.68], [-33.85, -10.75], [-33.75, -11.0], [-33.97, -11.53], [-34.5, -11.75], [-34.75, -11.65], [-35.0, -11.75], [-35.25, -11.65], [-35.5, -11.75], [-35.75, -11.65], [-36.0, -11.75], [-36.25, -11.65], [-36.5, -11.75], [-36.75, -11.65], [-37.0, -11.75], [-37.25, -11.65], [-37.5, -11.75], [-38.03, -11.53], [-38.18, -11.18], [-38.53, -11.03], [-38.68, -10.68], [-39.03, -10.53], [-39.25, -10.0], [-39.03, -9.47]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.South-America", "Equatorial.Atlantic-Ocean", "S.Atlantic-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-04-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-38.5, -10.75], [-39.02999999999997, -10.53], [-39.25, -10.0], [-39.02999999999997, -9.47], [-38.5, -9.25], [-37.97000000000003, -9.47], [-37.75, -10.0], [-37.97000000000003, -10.53], [-38.5, -10.75]]], [[[-37.120000000000005, -9.3], [-37.18000000000001, -9.18], [-37.52999999999997, -9.03], [-37.75, -8.5], [-37.52999999999997, -7.97], [-37.18000000000001, -7.82], [-37.04000000000002, -7.5], [-37.25, -7.0], [-37.02999999999997, -6.47], [-36.5, -6.25], [-36.25, -6.35], [-36.0, -6.25], [-35.47000000000003, -6.47], [-35.25, -7.0], [-35.47000000000003, -7.53], [-35.870000000000005, -7.7], [-35.75, -8.0], [-35.85000000000002, -8.25], [-35.75, -8.5], 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duration", "value": 1.489969550435759}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.08361509411253, 27.66157828923923, 27.980891650209855, 27.788293551027323, 25.43634521380983, 24.845350064996182]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.434944681451668, 29.58988468424991, 30.292423875518978, 29.556302357999243, 26.80562550257548, 25.85225630471041]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.208272324119811, 1.3710333022108956, 1.6975141164804801, 1.51816822581319, 1.1459712448801251, 0.9823755451014146]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.3588197787223635, 2.543444350066409, 3.194034860914087, 2.368792480192667, 1.4087493181497734, 1.1203885732857088]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.281555873224143, 1.7510438400131425, 2.2227022065503728, 2.094963590543031, 1.5199185007913243, 1.219571207616451]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.509543158676728, 2.6574223211709564, 3.466231645331404, 2.7691820128170272, 1.7339736235331742, 1.2433326023863858]}}